Merge branch 'master' into harfbuzz

Conflicts:
	src/build.py

.gitignore

@@ -43,4 +43,11 @@ demo/c++/demo.tif
 demo/c++/demo.jpg
 demo/c++/demo.png
 demo/c++/demo256.png
+demo/viewer/Makefile
+demo/viewer/Makefile.Debug
+demo/viewer/Makefile.Release
+demo/viewer/release/
+demo/viewer/ui_about.h
+demo/viewer/ui_info.h
+demo/viewer/ui_layer_info.h
 tests/cpp_tests/*-bin

CHANGELOG.md

@@ -11,6 +11,10 @@ For a complete change history, see the git log.
 
 Not yet released
 
+- Added support for overriding fill, stroke, and opacity for svg markers using marker properties
+
+- Added support for setting opacity dynamically on images in polygon pattern and markers symbolizers
+
 - Added support for filtering on a features geometry type, either `point`, `linestring`, 'polygon`,
   or `collection` using the expression keyword of `[mapnik::geometry_type]` (#546)
 

bindings/python/mapnik_layer.cpp

@@ -91,6 +91,18 @@ struct layer_pickle_suite : boost::python::pickle_suite
 
 std::vector<std::string> & (mapnik::layer::*_styles_)() = &mapnik::layer::styles;
 
+void set_maximum_extent(mapnik::layer & l, boost::optional<mapnik::box2d<double> > const& box)
+{
+    if (box)
+    {
+        l.set_maximum_extent(*box);
+    }
+    else
+    {
+        l.reset_maximum_extent();
+    }
+}
+
 void export_layer()
 {
     using namespace boost::python;
@@ -196,6 +208,27 @@ void export_layer()
                       "<mapnik.Datasource object at 0x65470>\n"
             )
 
+        .add_property("buffer_size",
+                      &layer::buffer_size,
+                      &layer::set_buffer_size,
+                      "Get/Set the size of buffer around layer in pixels.\n"
+                      "\n"
+                      "Usage:\n"
+                      ">>> l.buffer_size\n"
+                      "0 # zero by default\n"
+                      ">>> l.buffer_size = 2\n"
+                      ">>> l.buffer_size\n"
+                      "2\n"
+            )
+        .add_property("maximum_extent",make_function
+                      (&layer::maximum_extent,return_value_policy<copy_const_reference>()),
+                      &set_maximum_extent,
+                      "The maximum extent of the map.\n"
+                      "\n"
+                      "Usage:\n"
+                      ">>> m.maximum_extent = Box2d(-180,-90,180,90)\n"
+            )
+
         .add_property("maxzoom",
                       &layer::max_zoom,
                       &layer::set_max_zoom,

bindings/python/mapnik_line_symbolizer.cpp

@@ -57,7 +57,7 @@ void export_line_symbolizer()
                       "Set/get the rasterization method of the line of the point")
         .add_property("stroke",make_function
                       (&line_symbolizer::get_stroke,
-                       return_value_policy<copy_const_reference>()),
+                       return_value_policy<reference_existing_object>()),
                       &line_symbolizer::set_stroke)
         .add_property("smooth",
                       &line_symbolizer::smooth,

bindings/python/mapnik_map.cpp

@@ -117,7 +117,7 @@ struct map_pickle_suite : boost::python::pickle_suite
 std::vector<layer>& (Map::*layers_nonconst)() =  &Map::layers;
 std::vector<layer> const& (Map::*layers_const)() const =  &Map::layers;
 mapnik::parameters& (Map::*params_nonconst)() =  &Map::get_extra_parameters;
-boost::optional<mapnik::box2d<double> > const& (Map::*maximum_extent_const)() const =  &Map::maximum_extent;
+//boost::optional<mapnik::box2d<double> > const& (Map::*maximum_extent_const)() const =  &Map::maximum_extent;
 
 mapnik::feature_type_style find_style(mapnik::Map const& m, std::string const& name)
 {
@@ -192,7 +192,6 @@ mapnik::Map map_deepcopy(mapnik::Map & m, boost::python::dict memo)
     return result;
 }
 
-// TODO - find a simplier way to set optional to uninitialized
 void set_maximum_extent(mapnik::Map & m, boost::optional<mapnik::box2d<double> > const& box)
 {
     if (box)
@@ -201,7 +200,7 @@ void set_maximum_extent(mapnik::Map & m, boost::optional<mapnik::box2d<double> >
     }
     else
     {
-        m.maximum_extent().reset();
+        m.reset_maximum_extent();
     }
 }
 
@@ -562,7 +561,7 @@ void export_map()
             )
 
         .add_property("maximum_extent",make_function
-                      (maximum_extent_const,return_value_policy<copy_const_reference>()),
+                      (&Map::maximum_extent,return_value_policy<copy_const_reference>()),
                       &set_maximum_extent,
                       "The maximum extent of the map.\n"
                       "\n"

bindings/python/mapnik_markers_symbolizer.cpp

@@ -86,13 +86,13 @@ struct markers_symbolizer_pickle_suite : boost::python::pickle_suite
 
 };
 
-
 void export_markers_symbolizer()
 {
     using namespace boost::python;
 
     mapnik::enumeration_<mapnik::marker_placement_e>("marker_placement")
         .value("POINT_PLACEMENT",mapnik::MARKER_POINT_PLACEMENT)
+        .value("INTERIOR_PLACEMENT",mapnik::MARKER_INTERIOR_PLACEMENT)
         .value("LINE_PLACEMENT",mapnik::MARKER_LINE_PLACEMENT)
         ;
 
@@ -115,7 +115,11 @@ void export_markers_symbolizer()
         .add_property("opacity",
                       &markers_symbolizer::get_opacity,
                       &markers_symbolizer::set_opacity,
-                      "Set/get the text opacity")
+                      "Set/get the overall opacity")
+        .add_property("fill_opacity",
+                      &markers_symbolizer::get_fill_opacity,
+                      &markers_symbolizer::set_fill_opacity,
+                      "Set/get the fill opacity")
         .add_property("ignore_placement",
                       &markers_symbolizer::get_ignore_placement,
                       &markers_symbolizer::set_ignore_placement)

bindings/python/mapnik_python.cpp

@@ -608,12 +608,14 @@ BOOST_PYTHON_MODULE(_mapnik)
     def("has_cairo", &has_cairo, "Get cairo library status");
     def("has_pycairo", &has_pycairo, "Get pycairo module status");
 
+    python_optional<mapnik::stroke>();
     python_optional<mapnik::color>();
     python_optional<mapnik::box2d<double> >();
     python_optional<mapnik::datasource::geometry_t>();
     python_optional<std::string>();
     python_optional<unsigned>();
     python_optional<double>();
+    python_optional<float>();
     python_optional<bool>();
     python_optional<mapnik::text_transform_e>();
     register_ptr_to_python<mapnik::expression_ptr>();

demo/viewer/main.cpp

@@ -36,52 +36,59 @@ int main( int argc, char **argv )
     using mapnik::datasource_cache;
     using mapnik::freetype_engine;
 
-    QCoreApplication::setOrganizationName("Mapnik");
+    try
-    QCoreApplication::setOrganizationDomain("mapnik.org");
-    QCoreApplication::setApplicationName("Viewer");
-
-    QSettings settings("viewer.ini",QSettings::IniFormat);
-
-    // register input plug-ins
-    QString plugins_dir = settings.value("mapnik/plugins_dir",
-                                         QVariant("/usr/local/lib/mapnik/input/")).toString();
-    datasource_cache::instance()->register_datasources(plugins_dir.toStdString());
-    // register fonts
-    int count = settings.beginReadArray("mapnik/fonts");
-    for (int index=0; index < count; ++index)
     {
-        settings.setArrayIndex(index);
+        QCoreApplication::setOrganizationName("Mapnik");
-        QString font_dir = settings.value("dir").toString();
+        QCoreApplication::setOrganizationDomain("mapnik.org");
-        freetype_engine::register_fonts(font_dir.toStdString());
+        QCoreApplication::setApplicationName("Viewer");
-    }
+        QSettings settings("viewer.ini",QSettings::IniFormat);
-    settings.endArray();
 
-    QApplication app( argc, argv );
+        // register input plug-ins
-    MainWindow window;
+        QString plugins_dir = settings.value("mapnik/plugins_dir",
-    window.show();
+                                             QVariant("/usr/local/lib/mapnik/input/")).toString();
-    if (argc > 1) window.open(argv[1]);
+        datasource_cache::instance()->register_datasources(plugins_dir.toStdString());
-    if (argc >= 3)
+        // register fonts
-    {
+        int count = settings.beginReadArray("mapnik/fonts");
-        QStringList list = QString(argv[2]).split(",");
+        for (int index=0; index < count; ++index)
-        if (list.size()==4)
+        {
+            settings.setArrayIndex(index);
+            QString font_dir = settings.value("dir").toString();
+            freetype_engine::register_fonts(font_dir.toStdString());
+        }
+        settings.endArray();
+
+        QApplication app( argc, argv );
+        MainWindow window;
+        window.show();
+        if (argc > 1) window.open(argv[1]);
+        if (argc >= 3)
+        {
+            QStringList list = QString(argv[2]).split(",");
+            if (list.size()==4)
+            {
+                bool ok;
+                double x0 = list[0].toDouble(&ok);
+                double y0 = list[1].toDouble(&ok);
+                double x1 = list[2].toDouble(&ok);
+                double y1 = list[3].toDouble(&ok);
+                if (ok) window.set_default_extent(x0,y0,x1,y1);
+            }
+        }
+        else
+        {
+            window.zoom_all();
+        }
+        if (argc == 4)
         {
             bool ok;
-            double x0 = list[0].toDouble(&ok);
+            double scaling_factor = QString(argv[3]).toDouble(&ok);
-            double y0 = list[1].toDouble(&ok);
+            if (ok) window.set_scaling_factor(scaling_factor);
-            double x1 = list[2].toDouble(&ok);
-            double y1 = list[3].toDouble(&ok);
-            if (ok) window.set_default_extent(x0,y0,x1,y1);
         }
+        return app.exec();
     }
-    else
+    catch (std::exception const& ex)
     {
-        window.zoom_all();
+        std::cerr << "Could not start viewer: '" << ex.what() << "'\n";
+        return 1;
     }
-    if (argc == 4)
-    {
-        bool ok;
-        double scaling_factor = QString(argv[3]).toDouble(&ok);
-        if (ok) window.set_scaling_factor(scaling_factor);
-    }
-    return app.exec();
 }

deps/agg/include/agg_pixfmt_rgba.h

@@ -1015,18 +1015,34 @@ namespace agg
         //   Dca' = Sa.(Sca.Da + Dca.Sa - Sa.Da)/Sca + Sca.(1 - Da) + Dca.(1 - Sa)
         //
         // Da'  = Sa + Da - Sa.Da
+
+
+        // http://www.w3.org/TR/SVGCompositing/
+        // if Sca == 0 and Dca == Da
+        //   Dca' = Sa × Da + Sca × (1 - Da) + Dca × (1 - Sa)
+        //        = Sa × Da + Dca × (1 - Sa)
+        //        = Da = Dca
+        // otherwise if Sca == 0
+        //   Dca' = Sca × (1 - Da) + Dca × (1 - Sa)
+        //        = Dca × (1 - Sa)
+        // otherwise if Sca > 0
+        //   Dca' = Sa × Da - Sa × Da × min(1, (1 - Dca/Da) × Sa/Sca) + Sca × (1 - Da) + Dca × (1 - Sa)
+        //        = Sa × Da × (1 - min(1, (1 - Dca/Da) × Sa/Sca)) + Sca × (1 - Da) + Dca × (1 - Sa)
+
+        //   sa * da * (255 - std::min(255, (255 - p[0]/da)*(sa/(sc*sa)) +
         static AGG_INLINE void blend_pix(value_type* p,
                                          unsigned sr, unsigned sg, unsigned sb,
                                          unsigned sa, unsigned cover)
         {
-            if(cover < 255)
+            if (cover < 255)
             {
                 sr = (sr * cover + 255) >> 8;
                 sg = (sg * cover + 255) >> 8;
                 sb = (sb * cover + 255) >> 8;
                 sa = (sa * cover + 255) >> 8;
             }
-            if(sa)
+
+            if (sa)
             {
                 calc_type d1a  = base_mask - p[Order::A];
                 calc_type s1a  = base_mask - sa;
@@ -1042,15 +1058,15 @@ namespace agg
                 long_type sbda = sb * da;
                 long_type sada = sa * da;
 
-                p[Order::R] = (value_type)(((srda + drsa <= sada) ?
+                if ( sr > 0)  p[Order::R] = (value_type)(((srda + drsa <= sada) ?
                     sr * d1a + dr * s1a :
                     sa * (srda + drsa - sada) / sr + sr * d1a + dr * s1a + base_mask) >> base_shift);
 
-                p[Order::G] = (value_type)(((sgda + dgsa <= sada) ?
+                if ( sg > 0 ) p[Order::G] = (value_type)(((sgda + dgsa <= sada) ?
                     sg * d1a + dg * s1a :
                     sa * (sgda + dgsa - sada) / sg + sg * d1a + dg * s1a + base_mask) >> base_shift);
 
-                p[Order::B] = (value_type)(((sbda + dbsa <= sada) ?
+                if ( sb > 0) p[Order::B] = (value_type)(((sbda + dbsa <= sada) ?
                     sb * d1a + db * s1a :
                     sa * (sbda + dbsa - sada) / sb + sb * d1a + db * s1a + base_mask) >> base_shift);
 
@@ -1502,24 +1518,29 @@ namespace agg
                                          unsigned sr, unsigned sg, unsigned sb,
                                          unsigned sa, unsigned cover)
         {
-            if (cover < 255)
+            calc_type da = (p[Order::A] * sa + 255) >> 8;
-            {
-                sr = (sr * cover + 255) >> 8;
-                sg = (sg * cover + 255) >> 8;
-                sb = (sb * cover + 255) >> 8;
-                sa = (sa * cover + 255) >> 8;
-            }
-            if (sa > 0)
-            {
-                calc_type da = p[Order::A];
-                int dr = p[Order::R] - sr + 128;
-                int dg = p[Order::G] - sg + 128;
-                int db = p[Order::B] - sb + 128;
 
-                p[Order::R] = dr < 0 ? 0 : (dr > 255 ? 255 : dr);
+            int dr = p[Order::R] - sr + 128;
-                p[Order::G] = dg < 0 ? 0 : (dg > 255 ? 255 : dg);
+            int dg = p[Order::G] - sg + 128;
-                p[Order::B] = db < 0 ? 0 : (db > 255 ? 255 : db);
+            int db = p[Order::B] - sb + 128;
-                p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
+
+            dr = dr < 0 ? 0 : (dr > 255 ? 255 : dr);
+            dg = dg < 0 ? 0 : (dg > 255 ? 255 : dg);
+            db = db < 0 ? 0 : (db > 255 ? 255 : db);
+
+            p[Order::A] = da;
+
+            if (da < 255)
+            {
+                p[Order::R] = (dr * da + 255) >> 8;
+                p[Order::G] = (dg * da + 255) >> 8;
+                p[Order::B] = (db * da + 255) >> 8;
+            }
+            else
+            {
+                p[Order::R] = dr;
+                p[Order::G] = dg;
+                p[Order::B] = db;
             }
         }
     };

include/mapnik/agg_renderer.hpp

@@ -127,6 +127,7 @@ protected:
                         double x, double y, double angle = 0.0);
     void debug_draw_box(box2d<double> const& extent,
                         double x, double y, double angle = 0.0);
+    void draw_geo_extent(box2d<double> const& extent,mapnik::color const& color);
 
 private:
     buffer_type & pixmap_;

include/mapnik/attribute_collector.hpp

@@ -249,7 +249,7 @@ public:
 
 struct directive_collector : public boost::static_visitor<>
 {
-    directive_collector(double * filter_factor)
+    directive_collector(double & filter_factor)
         : filter_factor_(filter_factor) {}
 
     template <typename T>
@@ -257,10 +257,10 @@ struct directive_collector : public boost::static_visitor<>
 
     void operator () (raster_symbolizer const& sym)
     {
-        *filter_factor_ = sym.calculate_filter_factor();
+        filter_factor_ = sym.calculate_filter_factor();
     }
 private:
-    double * filter_factor_;
+    double & filter_factor_;
 };
 
 } // namespace mapnik

include/mapnik/box2d.hpp

@@ -110,7 +110,7 @@ operator << (std::basic_ostream<charT,traits>& out,
     std::basic_ostringstream<charT,traits> s;
     s.copyfmt(out);
     s.width(0);
-    s << "box2d(" << std::setprecision(16)
+    s << "box2d(" << std::fixed << std::setprecision(16)
       << e.minx() << ',' << e.miny() << ','
       << e.maxx() << ',' << e.maxy() << ')';
     out << s.str();

include/mapnik/ctrans.hpp

@@ -52,34 +52,25 @@ struct MAPNIK_DECL coord_transform
         : t_(0),
         geom_(geom),
         prj_trans_(0)  {}
-    
+
     void set_proj_trans(proj_transform const& prj_trans)
     {
         prj_trans_ = &prj_trans;
     }
-    
+
     void set_trans(Transform  const& t)
     {
         t_ = &t;
     }
-    
+
     unsigned vertex(double *x, double *y) const
     {
-        unsigned command = SEG_MOVETO;
+        unsigned command = geom_.vertex(x, y);
-        bool ok = false;
+        if ( command != SEG_END)
-        bool skipped_points = false;
-        double z = 0;
-        while (!ok && command != SEG_END)
         {
-            command = geom_.vertex(x, y);
+            double z = 0;
-            ok = prj_trans_->backward(*x, *y, z);
+            if (!prj_trans_->backward(*x, *y, z))
-            if (!ok) {
+                return SEG_END;
-                skipped_points = true;
-            }
-        }
-        if (skipped_points && (command == SEG_LINETO))
-        {
-            command = SEG_MOVETO;
         }
         t_->forward(x, y);
         return command;

include/mapnik/geom_util.hpp

@@ -241,6 +241,8 @@ double path_length(PathType & path)
     return length;
 }
 
+namespace label {
+
 template <typename PathType>
 bool middle_point(PathType & path, double & x, double & y)
 {
@@ -271,8 +273,6 @@ bool middle_point(PathType & path, double & x, double & y)
     return true;
 }
 
-namespace label {
-
 template <typename PathType>
 bool centroid(PathType & path, double & x, double & y)
 {

include/mapnik/grid/grid_renderer.hpp

@@ -118,9 +118,10 @@ private:
     CoordTransform t_;
     freetype_engine font_engine_;
     face_manager<freetype_engine> font_manager_;
-    label_collision_detector4 detector_;
+    boost::shared_ptr<label_collision_detector4> detector_;
     boost::scoped_ptr<grid_rasterizer> ras_ptr;
     box2d<double> query_extent_;
+    void setup(Map const& m);
 };
 }
 

include/mapnik/layer.hpp

@@ -43,7 +43,9 @@ namespace mapnik
 class MAPNIK_DECL layer
 {
 public:
-    explicit layer(std::string const& name, std::string const& srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs");
+    layer(std::string const& name,
+          std::string const& srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs");
+
     layer(layer const& l);
     layer& operator=(layer const& l);
     bool operator==(layer const& other) const;
@@ -57,7 +59,7 @@ public:
      * @return the name of the layer.
      */
 
-    const std::string& name() const;
+    std::string const& name() const;
 
     /*!
      * @brief Set the SRS of the layer.
@@ -188,6 +190,11 @@ public:
      */
     box2d<double> envelope() const;
 
+    void set_maximum_extent(box2d<double> const& box);
+    boost::optional<box2d<double> > const&  maximum_extent() const;
+    void reset_maximum_extent();
+    void set_buffer_size(int size);
+    int buffer_size() const;
     ~layer();
 private:
     void swap(const layer& other);
@@ -204,6 +211,8 @@ private:
     std::string group_by_;
     std::vector<std::string> styles_;
     datasource_ptr ds_;
+    int buffer_size_;
+    boost::optional<box2d<double> > maximum_extent_;
 };
 }
 

include/mapnik/map.hpp

@@ -332,15 +332,13 @@ public:
     /*! \brief Set the map maximum extent.
      *  @param box The bounding box for the maximum extent.
      */
-    void set_maximum_extent(box2d<double>const& box);
+    void set_maximum_extent(box2d<double> const& box);
 
     /*! \brief Get the map maximum extent as box2d<double>
      */
     boost::optional<box2d<double> > const& maximum_extent() const;
 
-    /*! \brief Get the non-const map maximum extent as box2d<double>
+    void reset_maximum_extent();
-     */
-    boost::optional<box2d<double> > & maximum_extent();
 
     /*! \brief Get the map base path where paths should be relative to.
      */

include/mapnik/marker.hpp

@@ -49,13 +49,13 @@ namespace mapnik
 
 typedef agg::pod_bvector<mapnik::svg::path_attributes> attr_storage;
 typedef mapnik::svg::svg_storage<mapnik::svg::svg_path_storage,attr_storage> svg_storage_type;
-typedef boost::shared_ptr<svg_storage_type> path_ptr;
+typedef boost::shared_ptr<svg_storage_type> svg_path_ptr;
 typedef boost::shared_ptr<image_data_32> image_ptr;
 /**
  * A class to hold either vector or bitmap marker data. This allows these to be treated equally
  * in the image caches and most of the render paths.
  */
-class marker
+class marker: private boost::noncopyable
 {
 public:
     marker()
@@ -65,20 +65,21 @@ public:
         (*bitmap_data_)->set(0xff000000);
     }
 
-    marker(const boost::optional<mapnik::image_ptr> &data)
+    marker(boost::optional<mapnik::image_ptr> const& data)
         : bitmap_data_(data)
     {
 
     }
 
-    marker(const boost::optional<mapnik::path_ptr> &data)
+    marker(boost::optional<mapnik::svg_path_ptr> const& data)
         : vector_data_(data)
     {
 
     }
 
-    marker(const marker& rhs)
+    marker(marker const& rhs)
-        : bitmap_data_(rhs.bitmap_data_), vector_data_(rhs.vector_data_)
+        : bitmap_data_(rhs.bitmap_data_),
+          vector_data_(rhs.vector_data_)
     {}
 
     box2d<double> bounding_box() const
@@ -128,17 +129,14 @@ public:
         return bitmap_data_;
     }
 
-    boost::optional<mapnik::path_ptr> get_vector_data() const
+    boost::optional<mapnik::svg_path_ptr> get_vector_data() const
     {
         return vector_data_;
     }
 
-
 private:
-    marker& operator=(const marker&);
-
     boost::optional<mapnik::image_ptr> bitmap_data_;
-    boost::optional<mapnik::path_ptr> vector_data_;
+    boost::optional<mapnik::svg_path_ptr> vector_data_;
 
 };
 

include/mapnik/marker_helpers.hpp

@@ -27,39 +27,359 @@
 #include <mapnik/markers_symbolizer.hpp>
 #include <mapnik/expression_evaluator.hpp>
 #include <mapnik/svg/svg_path_attributes.hpp>
+#include <mapnik/svg/svg_converter.hpp>
+#include <mapnik/marker.hpp> // for svg_storage_type
+#include <mapnik/svg/svg_storage.hpp>
+#include <mapnik/markers_placement.hpp>
+
+// agg
+#include "agg_ellipse.h"
+#include "agg_basics.h"
+#include "agg_renderer_base.h"
+#include "agg_renderer_scanline.h"
+#include "agg_rendering_buffer.h"
+#include "agg_scanline_u.h"
+#include "agg_image_filters.h"
+#include "agg_trans_bilinear.h"
+#include "agg_span_allocator.h"
+#include "agg_image_accessors.h"
+#include "agg_pixfmt_rgba.h"
+#include "agg_span_image_filter_rgba.h"
 
 // boost
 #include <boost/optional.hpp>
 
 namespace mapnik {
 
+
+template <typename BufferType, typename SvgRenderer, typename Rasterizer, typename Detector>
+struct vector_markers_rasterizer_dispatch
+{
+    typedef typename SvgRenderer::renderer_base renderer_base;
+    typedef typename renderer_base::pixfmt_type pixfmt_type;
+
+    vector_markers_rasterizer_dispatch(BufferType & image_buffer,
+                                SvgRenderer & svg_renderer,
+                                Rasterizer & ras,
+                                box2d<double> const& bbox,
+                                agg::trans_affine const& marker_trans,
+                                markers_symbolizer const& sym,
+                                Detector & detector,
+                                double scale_factor)
+        : buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
+        pixf_(buf_),
+        renb_(pixf_),
+        svg_renderer_(svg_renderer),
+        ras_(ras),
+        bbox_(bbox),
+        marker_trans_(marker_trans),
+        sym_(sym),
+        detector_(detector),
+        scale_factor_(scale_factor)
+    {
+        pixf_.comp_op(static_cast<agg::comp_op_e>(sym_.comp_op()));
+    }
+
+    template <typename T>
+    void add_path(T & path)
+    {
+        marker_placement_e placement_method = sym_.get_marker_placement();
+
+        if (placement_method != MARKER_LINE_PLACEMENT)
+        {
+            double x,y;
+            path.rewind(0);
+            if (placement_method == MARKER_INTERIOR_PLACEMENT)
+            {
+                label::interior_position(path, x, y);
+            }
+            else
+            {
+                label::centroid(path, x, y);
+            }
+            agg::trans_affine matrix = marker_trans_;
+            matrix.translate(x,y);
+            box2d<double> transformed_bbox = bbox_ * matrix;
+
+            if (sym_.get_allow_overlap() ||
+                detector_.has_placement(transformed_bbox))
+            {
+                svg_renderer_.render(ras_, sl_, renb_, matrix, 1, bbox_);
+
+                if (!sym_.get_ignore_placement())
+                    detector_.insert(transformed_bbox);
+            }
+        }
+        else
+        {
+            markers_placement<T, label_collision_detector4> placement(path, bbox_, marker_trans_, detector_,
+                                                                      sym_.get_spacing() * scale_factor_,
+                                                                      sym_.get_max_error(),
+                                                                      sym_.get_allow_overlap());
+            double x, y, angle;
+            while (placement.get_point(x, y, angle))
+            {
+                agg::trans_affine matrix = marker_trans_;
+                matrix.rotate(angle);
+                matrix.translate(x, y);
+                svg_renderer_.render(ras_, sl_, renb_, matrix, 1, bbox_);
+            }
+        }
+    }
+private:
+    agg::scanline_u8 sl_;
+    agg::rendering_buffer buf_;
+    pixfmt_type pixf_;
+    renderer_base renb_;
+    SvgRenderer & svg_renderer_;
+    Rasterizer & ras_;
+    box2d<double> const& bbox_;
+    agg::trans_affine const& marker_trans_;
+    markers_symbolizer const& sym_;
+    Detector & detector_;
+    double scale_factor_;
+};
+
+template <typename Rasterizer, typename RendererBuffer>
+void render_raster_marker(Rasterizer & ras, RendererBuffer & renb,
+                          agg::scanline_u8 & sl, image_data_32 const& src,
+                          agg::trans_affine const& marker_tr, double opacity)
+{
+    double width  = src.width();
+    double height = src.height();
+    double p[8];
+    p[0] = 0;     p[1] = 0;
+    p[2] = width; p[3] = 0;
+    p[4] = width; p[5] = height;
+    p[6] = 0;     p[7] = height;
+
+    marker_tr.transform(&p[0], &p[1]);
+    marker_tr.transform(&p[2], &p[3]);
+    marker_tr.transform(&p[4], &p[5]);
+    marker_tr.transform(&p[6], &p[7]);
+
+    ras.move_to_d(p[0],p[1]);
+    ras.line_to_d(p[2],p[3]);
+    ras.line_to_d(p[4],p[5]);
+    ras.line_to_d(p[6],p[7]);
+
+    typedef agg::rgba8 color_type;
+    agg::span_allocator<color_type> sa;
+    agg::image_filter_bilinear filter_kernel;
+    agg::image_filter_lut filter(filter_kernel, false);
+
+    agg::rendering_buffer marker_buf((unsigned char *)src.getBytes(),
+                                     src.width(),
+                                     src.height(),
+                                     src.width()*4);
+    agg::pixfmt_rgba32_pre pixf(marker_buf);
+
+    typedef agg::image_accessor_clone<agg::pixfmt_rgba32_pre> img_accessor_type;
+    typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
+    typedef agg::span_image_filter_rgba_2x2<img_accessor_type,
+                                            interpolator_type> span_gen_type;
+    typedef agg::order_rgba order_type;
+    typedef agg::pixel32_type pixel_type;
+    typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
+    typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
+    typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
+    typedef agg::renderer_scanline_aa_alpha<renderer_base,
+            agg::span_allocator<agg::rgba8>,
+            span_gen_type> renderer_type;
+    img_accessor_type ia(pixf);
+    interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
+    span_gen_type sg(ia, interpolator, filter);
+    renderer_type rp(renb,sa, sg, unsigned(opacity*255));
+    agg::render_scanlines(ras, sl, rp);
+}
+
+template <typename BufferType, typename Rasterizer, typename Detector>
+struct raster_markers_rasterizer_dispatch
+{
+    typedef agg::rgba8 color_type;
+    typedef agg::order_rgba order_type;
+    typedef agg::pixel32_type pixel_type;
+    typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
+    typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
+    typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
+
+    raster_markers_rasterizer_dispatch(BufferType & image_buffer,
+                                       Rasterizer & ras,
+                                       image_data_32 const& src,
+                                       agg::trans_affine const& marker_trans,
+                                       markers_symbolizer const& sym,
+                                       Detector & detector,
+                                       double scale_factor)
+        : buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
+        pixf_(buf_),
+        renb_(pixf_),
+        ras_(ras),
+        src_(src),
+        marker_trans_(marker_trans),
+        sym_(sym),
+        detector_(detector),
+        scale_factor_(scale_factor)
+    {
+        pixf_.comp_op(static_cast<agg::comp_op_e>(sym_.comp_op()));
+    }
+
+    template <typename T>
+    void add_path(T & path)
+    {
+        marker_placement_e placement_method = sym_.get_marker_placement();
+        box2d<double> bbox_(0,0, src_.width(),src_.height());
+
+        if (placement_method != MARKER_LINE_PLACEMENT)
+        {
+            double x,y;
+            path.rewind(0);
+            if (placement_method == MARKER_INTERIOR_PLACEMENT)
+            {
+                label::interior_position(path, x, y);
+            }
+            else
+            {
+                label::centroid(path, x, y);
+            }
+            agg::trans_affine matrix = marker_trans_;
+            matrix.translate(x,y);
+            box2d<double> transformed_bbox = bbox_ * matrix;
+
+            if (sym_.get_allow_overlap() ||
+                detector_.has_placement(transformed_bbox))
+            {
+
+                float opacity = sym_.get_opacity() ? *sym_.get_opacity() : 1;
+                render_raster_marker(ras_, renb_, sl_, src_,
+                                     matrix, opacity);
+                if (!sym_.get_ignore_placement())
+                    detector_.insert(transformed_bbox);
+            }
+        }
+        else
+        {
+            markers_placement<T, label_collision_detector4> placement(path, bbox_, marker_trans_, detector_,
+                                                                      sym_.get_spacing() * scale_factor_,
+                                                                      sym_.get_max_error(),
+                                                                      sym_.get_allow_overlap());
+            double x, y, angle;
+            while (placement.get_point(x, y, angle))
+            {
+                agg::trans_affine matrix = marker_trans_;
+                matrix.rotate(angle);
+                matrix.translate(x,y);
+                float opacity = sym_.get_opacity() ? *sym_.get_opacity() : 1;
+                render_raster_marker(ras_, renb_, sl_, src_,
+                                     matrix, opacity);
+            }
+        }
+    }
+private:
+    agg::scanline_u8 sl_;
+    agg::rendering_buffer buf_;
+    pixfmt_comp_type pixf_;
+    renderer_base renb_;
+    Rasterizer & ras_;
+    image_data_32 const& src_;
+    agg::trans_affine const& marker_trans_;
+    markers_symbolizer const& sym_;
+    Detector & detector_;
+    double scale_factor_;
+};
+
+
+template <typename T>
+void build_ellipse(T const& sym, mapnik::feature_impl const& feature, svg_storage_type & marker_ellipse, svg::svg_path_adapter & svg_path)
+{
+    expression_ptr const& width_expr = sym.get_width();
+    expression_ptr const& height_expr = sym.get_height();
+    double width = 0;
+    double height = 0;
+    if (width_expr && height_expr)
+    {
+        width = boost::apply_visitor(evaluate<Feature,value_type>(feature), *width_expr).to_double();
+        height = boost::apply_visitor(evaluate<Feature,value_type>(feature), *height_expr).to_double();
+    }
+    else if (width_expr)
+    {
+        width = boost::apply_visitor(evaluate<Feature,value_type>(feature), *width_expr).to_double();
+        height = width;
+    }
+    else if (height_expr)
+    {
+        height = boost::apply_visitor(evaluate<Feature,value_type>(feature), *height_expr).to_double();
+        width = height;
+    }
+    svg::svg_converter_type styled_svg(svg_path, marker_ellipse.attributes());
+    styled_svg.push_attr();
+    styled_svg.begin_path();
+    agg::ellipse c(0, 0, width/2.0, height/2.0);
+    styled_svg.storage().concat_path(c);
+    styled_svg.end_path();
+    styled_svg.pop_attr();
+    double lox,loy,hix,hiy;
+    styled_svg.bounding_rect(&lox, &loy, &hix, &hiy);
+    marker_ellipse.set_bounding_box(lox,loy,hix,hiy);
+}
+
 template <typename Attr>
 bool push_explicit_style(Attr const& src, Attr & dst, markers_symbolizer const& sym)
 {
     boost::optional<stroke> const& strk = sym.get_stroke();
     boost::optional<color> const& fill = sym.get_fill();
-    if (strk || fill)
+    boost::optional<float> const& opacity = sym.get_opacity();
+    boost::optional<float> const& fill_opacity = sym.get_fill_opacity();
+    if (strk || fill || opacity || fill_opacity)
     {
+        bool success = false;
         for(unsigned i = 0; i < src.size(); ++i)
         {
-            mapnik::svg::path_attributes attr = src[i];
+            success = true;
-
+            dst.push_back(src[i]);
-            if (strk && attr.stroke_flag)
+            mapnik::svg::path_attributes & attr = dst.last();
+            if (attr.stroke_flag)
             {
-                attr.stroke_width = strk->get_width();
+                // TODO - stroke attributes need to be boost::optional
-                color const& s_color = strk->get_color();
+                // for this to work properly
-                attr.stroke_color = agg::rgba(s_color.red()/255.0,s_color.green()/255.0,
+                if (strk)
-                                              s_color.blue()/255.0,(s_color.alpha()*strk->get_opacity())/255.0);
+                {
+                    attr.stroke_width = strk->get_width();
+                    color const& s_color = strk->get_color();
+                    attr.stroke_color = agg::rgba(s_color.red()/255.0,
+                                                  s_color.green()/255.0,
+                                                  s_color.blue()/255.0,
+                                                  s_color.alpha()/255.0);
+                }
+                if (opacity)
+                {
+                    attr.stroke_opacity = *opacity;
+                }
+                else if (strk)
+                {
+                    attr.stroke_opacity = strk->get_opacity();
+                }
             }
-            if (fill && attr.fill_flag)
+            if (attr.fill_flag)
             {
-                color const& f_color = *fill;
+                if (fill)
-                attr.fill_color = agg::rgba(f_color.red()/255.0,f_color.green()/255.0,
+                {
-                                            f_color.blue()/255.0,(f_color.alpha()*sym.get_opacity())/255.0);
+                    color const& f_color = *fill;
+                    attr.fill_color = agg::rgba(f_color.red()/255.0,
+                                                f_color.green()/255.0,
+                                                f_color.blue()/255.0,
+                                                f_color.alpha()/255.0);
+                }
+                if (opacity)
+                {
+                    attr.fill_opacity = *opacity;
+                }
+                else if (fill_opacity)
+                {
+                    attr.fill_opacity = *fill_opacity;
+                }
             }
-            dst.push_back(attr);
         }
-        return true;
+        return success;
     }
     return false;
 }

include/mapnik/markers_placement.hpp

@@ -24,13 +24,26 @@
 #define MAPNIK_MARKERS_PLACEMENT_HPP
 
 // mapnik
+#include <mapnik/markers_placement.hpp>
+#include <mapnik/geometry.hpp>
+#include <mapnik/ctrans.hpp>
+#include <mapnik/label_collision_detector.hpp>
+#include <mapnik/global.hpp> //round
 #include <mapnik/box2d.hpp>
 
 // boost
 #include <boost/utility.hpp>
 
 // agg
+#include "agg_basics.h"
+#include "agg_conv_clip_polygon.h"
+#include "agg_conv_clip_polyline.h"
+#include "agg_trans_affine.h"
 #include "agg_conv_transform.h"
+#include "agg_conv_smooth_poly1.h"
+
+// stl
+#include <cmath>
 
 namespace mapnik {
 
@@ -47,12 +60,40 @@ public:
      *                 converted to a positive value with similar magnitude, but
      *                 choosen to optimize marker placement. 0 = no markers
      */
-    markers_placement(Locator &locator, box2d<double> const& size, agg::trans_affine const& tr, Detector &detector, double spacing, double max_error, bool allow_overlap);
+    markers_placement(Locator &locator, box2d<double> const& size, agg::trans_affine const& tr, Detector &detector, double spacing, double max_error, bool allow_overlap)
+      : locator_(locator),
+        size_(size),
+        tr_(tr),
+        detector_(detector),
+        max_error_(max_error),
+        allow_overlap_(allow_overlap)
+    {
+      marker_width_ = (size_ * tr_).width();
+      if (spacing >= 0)
+      {
+          spacing_ = spacing;
+      } else if (spacing < 0)
+      {
+          spacing_ = find_optimal_spacing(-spacing);
+      }
+      rewind();
+    }
+
     /** Start again at first marker.
      * \note Returns the same list of markers only works when they were NOT added
      *       to the detector.
      */
-    void rewind();
+    void rewind()
+    {
+        locator_.rewind(0);
+        //Get first point
+        done_ = agg::is_stop(locator_.vertex(&next_x, &next_y)) || spacing_ < marker_width_;
+        last_x = next_x;
+        last_y = next_y; // Force request of new segment
+        error_ = 0;
+        marker_nr_ = 0;
+    }
+
     /** Get a point where the marker should be placed.
      * Each time this function is called a new point is returned.
      * \param x     Return value for x position
@@ -61,7 +102,115 @@ public:
      * \param add_to_detector Add selected position to detector
      * \return True if a place is found, false if none is found.
      */
-    bool get_point(double & x, double  & y, double & angle,  bool add_to_detector = true);
+    bool get_point(double & x, double  & y, double & angle,  bool add_to_detector = true)
+    {
+        if (done_) return false;
+        unsigned cmd;
+        /* This functions starts at the position of the previous marker,
+           walks along the path, counting how far it has to go in spacing_left.
+           If one marker can't be placed at the position it should go to it is
+           moved a bit. The error is compensated for in the next call to this
+           function.
+
+           error > 0: Marker too near to the end of the path.
+           error = 0: Perfect position.
+           error < 0: Marker too near to the beginning of the path.
+        */
+        if (marker_nr_++ == 0)
+        {
+            //First marker
+            spacing_left_ = spacing_ / 2;
+        } else
+        {
+            spacing_left_ = spacing_;
+        }
+        spacing_left_ -= error_;
+        error_ = 0;
+        //Loop exits when a position is found or when no more segments are available
+        while (true)
+        {
+            //Do not place markers too close to the beginning of a segment
+            if (spacing_left_ < marker_width_/2)
+            {
+                set_spacing_left(marker_width_/2); //Only moves forward
+            }
+            //Error for this marker is too large. Skip to the next position.
+            if (abs(error_) > max_error_ * spacing_)
+            {
+                if (error_ > spacing_)
+                {
+                    error_ = 0; //Avoid moving backwards
+                    MAPNIK_LOG_WARN(markers_placement) << "Extremely large error in markers_placement. Please file a bug report.";
+                }
+                spacing_left_ += spacing_ - error_;
+                error_ = 0;
+            }
+            double dx = next_x - last_x;
+            double dy = next_y - last_y;
+            double segment_length = std::sqrt(dx * dx + dy * dy);
+            if (segment_length <= spacing_left_)
+            {
+                //Segment is to short to place marker. Find next segment
+                spacing_left_ -= segment_length;
+                last_x = next_x;
+                last_y = next_y;
+                while (agg::is_move_to(cmd = locator_.vertex(&next_x, &next_y)))
+                {
+                    //Skip over "move" commands
+                    last_x = next_x;
+                    last_y = next_y;
+                }
+                if (agg::is_stop(cmd))
+                {
+                    done_ = true;
+                    return false;
+                }
+                continue; //Try again
+            }
+            /* At this point we know the following things:
+               - segment_length > spacing_left
+               - error is small enough
+               - at least half a marker fits into this segment
+            */
+            //Check if marker really fits in this segment
+            if (segment_length < marker_width_)
+            {
+                //Segment to short => Skip this segment
+                set_spacing_left(segment_length + marker_width_/2); //Only moves forward
+                continue;
+            } else if (segment_length - spacing_left_ < marker_width_/2)
+            {
+                //Segment is long enough, but we are to close to the end
+                //Note: This function moves backwards. This could lead to an infinite
+                // loop when another function adds a positive offset. Therefore we
+                // only move backwards when there is no offset
+                if (error_ == 0)
+                {
+                    set_spacing_left(segment_length - marker_width_/2, true);
+                } else
+                {
+                    //Skip this segment
+                    set_spacing_left(segment_length + marker_width_/2); //Only moves forward
+                }
+                continue; //Force checking of max_error constraint
+            }
+            angle = atan2(dy, dx);
+            x = last_x + dx * (spacing_left_ / segment_length);
+            y = last_y + dy * (spacing_left_ / segment_length);
+            box2d<double> box = perform_transform(angle, x, y);
+            if (!allow_overlap_ && !detector_.has_placement(box))
+            {
+                //10.0 is the approxmiate number of positions tried and choosen arbitrarily
+                set_spacing_left(spacing_left_ + spacing_ * max_error_ / 10.0); //Only moves forward
+                continue;
+            }
+            if (add_to_detector) detector_.insert(box);
+            last_x = x;
+            last_y = y;
+            return true;
+        }
+    }
+
 private:
     Locator &locator_;
     box2d<double> size_;
@@ -82,11 +231,69 @@ private:
     unsigned marker_nr_;
 
     /** Rotates the size_ box and translates the position. */
-    box2d<double> perform_transform(double angle, double dx, double dy);
+    box2d<double> perform_transform(double angle, double dx, double dy)
+    {
+        double x1 = size_.minx();
+        double x2 = size_.maxx();
+        double y1 = size_.miny();
+        double y2 = size_.maxy();
+        agg::trans_affine tr = tr_ * agg::trans_affine_rotation(angle).translate(dx, dy);
+        double xA = x1, yA = y1, xB = x2, yB = y1, xC = x2, yC = y2, xD = x1, yD = y2;
+        tr.transform(&xA, &yA);
+        tr.transform(&xB, &yB);
+        tr.transform(&xC, &yC);
+        tr.transform(&xD, &yD);
+        box2d<double> result(xA, yA, xC, yC);
+        result.expand_to_include(xB, yB);
+        result.expand_to_include(xD, yD);
+        return result;
+    }
+
     /** Automatically chooses spacing. */
-    double find_optimal_spacing(double s);
+    double find_optimal_spacing(double s)
+    {
+        rewind();
+        //Calculate total path length
+        unsigned cmd = agg::path_cmd_move_to;
+        double length = 0;
+        while (!agg::is_stop(cmd))
+        {
+            double dx = next_x - last_x;
+            double dy = next_y - last_y;
+            length += std::sqrt(dx * dx + dy * dy);
+            last_x = next_x;
+            last_y = next_y;
+            while (agg::is_move_to(cmd = locator_.vertex(&next_x, &next_y)))
+            {
+                //Skip over "move" commands
+                last_x = next_x;
+                last_y = next_y;
+            }
+        }
+        unsigned points = round(length / s);
+        if (points == 0) return 0.0; //Path to short
+        return length / points;
+    }
+
     /** Set spacing_left_, adjusts error_ and performs sanity checks. */
-    void set_spacing_left(double sl, bool allow_negative=false);
+    void set_spacing_left(double sl, bool allow_negative=false)
+    {
+        double delta_error = sl - spacing_left_;
+        if (!allow_negative && delta_error < 0)
+        {
+            MAPNIK_LOG_WARN(markers_placement) << "Unexpected negative error in markers_placement. Please file a bug report.";
+            return;
+        }
+    #ifdef MAPNIK_DEBUG
+        if (delta_error == 0.0)
+        {
+            MAPNIK_LOG_WARN(markers_placement) << "Not moving at all in set_spacing_left()! Please file a bug report.";
+        }
+    #endif
+        error_ += delta_error;
+        spacing_left_ = sl;
+    }
+
 };
 
 }

include/mapnik/markers_symbolizer.hpp

@@ -39,6 +39,7 @@ namespace mapnik {
 // TODO - consider merging with text_symbolizer label_placement_e
 enum marker_placement_enum {
     MARKER_POINT_PLACEMENT,
+    MARKER_INTERIOR_PLACEMENT,
     MARKER_LINE_PLACEMENT,
     marker_placement_enum_MAX
 };
@@ -65,8 +66,12 @@ public:
     double get_spacing() const;
     void set_max_error(double max_error);
     double get_max_error() const;
+    void set_opacity(float opacity);
+    boost::optional<float> get_opacity() const;
     void set_fill(color const& fill);
     boost::optional<color> get_fill() const;
+    void set_fill_opacity(float opacity);
+    boost::optional<float> get_fill_opacity() const;
     void set_stroke(stroke const& stroke);
     boost::optional<stroke> get_stroke() const;
     void set_marker_placement(marker_placement_e marker_p);
@@ -79,6 +84,8 @@ private:
     double spacing_;
     double max_error_;
     boost::optional<color> fill_;
+    boost::optional<float> fill_opacity_;
+    boost::optional<float> opacity_;
     boost::optional<stroke> stroke_;
     marker_placement_e marker_p_;
 };

include/mapnik/svg/svg_converter.hpp

@@ -66,10 +66,10 @@ public:
         {
             throw std::runtime_error("end_path : The path was not begun");
         }
-        path_attributes attr = cur_attr();
+        path_attributes& attr = attributes_[attributes_.size() - 1];
-        unsigned idx = attributes_[attributes_.size() - 1].index;
+        unsigned idx = attr.index;
+        attr = cur_attr();
         attr.index = idx;
-        attributes_[attributes_.size() - 1] = attr;
     }
 
     void move_to(double x, double y, bool rel=false)  // M, m

include/mapnik/svg/svg_renderer.hpp

@@ -102,14 +102,14 @@ private:
 template <typename VertexSource, typename AttributeSource, typename ScanlineRenderer, typename PixelFormat>
 class svg_renderer : boost::noncopyable
 {
+public:
     typedef agg::conv_curve<VertexSource>            curved_type;
     typedef agg::conv_stroke<curved_type>            curved_stroked_type;
     typedef agg::conv_transform<curved_stroked_type> curved_stroked_trans_type;
     typedef agg::conv_transform<curved_type>         curved_trans_type;
     typedef agg::conv_contour<curved_trans_type>     curved_trans_contour_type;
     typedef agg::renderer_base<PixelFormat>          renderer_base;
-    
+
-public:
     svg_renderer(VertexSource & source, AttributeSource const& attributes)
         : source_(source),
           curved_(source_),

src/agg/agg_renderer.cpp

@@ -21,12 +21,14 @@
  *****************************************************************************/
 
 // mapnik
-#include <mapnik/layer.hpp>
-#include <mapnik/feature_type_style.hpp>
-#include <mapnik/graphics.hpp>
 #include <mapnik/agg_renderer.hpp>
 #include <mapnik/agg_rasterizer.hpp>
 #include <mapnik/agg_helpers.hpp>
+#include <mapnik/graphics.hpp>
+
+#include <mapnik/debug.hpp>
+#include <mapnik/layer.hpp>
+#include <mapnik/feature_type_style.hpp>
 #include <mapnik/marker.hpp>
 #include <mapnik/marker_cache.hpp>
 #include <mapnik/unicode.hpp>
@@ -36,6 +38,7 @@
 #include <mapnik/svg/svg_converter.hpp>
 #include <mapnik/svg/svg_renderer.hpp>
 #include <mapnik/svg/svg_path_adapter.hpp>
+
 #include <mapnik/image_compositing.hpp>
 #include <mapnik/image_filter.hpp>
 #include <mapnik/image_util.hpp>
@@ -156,6 +159,10 @@ void agg_renderer<T>::setup(Map const &m)
         }
     }
 
+    agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
+    agg::pixfmt_rgba32 pixf(buf);
+    pixf.premultiply();
+
     MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Scale=" << m.scale();
 }
 
@@ -166,7 +173,6 @@ template <typename T>
 void agg_renderer<T>::start_map_processing(Map const& map)
 {
     MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Start map processing bbox=" << map.get_current_extent();
-
     ras_ptr->clip_box(0,0,width_,height_);
 }
 
@@ -191,7 +197,24 @@ void agg_renderer<T>::start_layer_processing(layer const& lay, box2d<double> con
     {
         detector_->clear();
     }
+
     query_extent_ = query_extent;
+    int buffer_size = lay.buffer_size();
+    if (buffer_size != 0 )
+    {
+        double padding = buffer_size * (double)(query_extent.width()/pixmap_.width());
+        double x0 = query_extent_.minx();
+        double y0 = query_extent_.miny();
+        double x1 = query_extent_.maxx();
+        double y1 = query_extent_.maxy();
+        query_extent_.init(x0 - padding, y0 - padding, x1 + padding , y1 + padding);
+    }
+
+    boost::optional<box2d<double> > const& maximum_extent = lay.maximum_extent();
+    if (maximum_extent)
+    {
+        query_extent_.clip(*maximum_extent);
+    }
 }
 
 template <typename T>
@@ -362,15 +385,18 @@ void agg_renderer<T>::render_marker(pixel_position const& pos, marker const& mar
                                              src.height(),
                                              src.width()*4);
             agg::pixfmt_rgba32_pre pixf(marker_buf);
-
             typedef agg::image_accessor_clone<agg::pixfmt_rgba32_pre> img_accessor_type;
             typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
             typedef agg::span_image_filter_rgba_2x2<img_accessor_type,
                                                     interpolator_type> span_gen_type;
+            typedef agg::renderer_scanline_aa_alpha<renderer_base,
+                        agg::span_allocator<agg::rgba8>,
+                        span_gen_type> renderer_type;
             img_accessor_type ia(pixf);
             interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
             span_gen_type sg(ia, interpolator, filter);
-            agg::render_scanlines_aa(*ras_ptr, sl, renb, sa, sg);
+            renderer_type rp(renb,sa, sg, unsigned(opacity*255));
+            agg::render_scanlines(*ras_ptr, sl, rp);
         }
     }
 }
@@ -427,6 +453,27 @@ void agg_renderer<T>::debug_draw_box(R& buf, box2d<double> const& box,
     agg::render_scanlines(*ras_ptr, sl_line, ren);
 }
 
+template <typename T>
+void agg_renderer<T>::draw_geo_extent(box2d<double> const& extent, mapnik::color const& color)
+{
+    box2d<double> box = t_.forward(extent);
+    double x0 = box.minx();
+    double x1 = box.maxx();
+    double y0 = box.miny();
+    double y1 = box.maxy();
+    unsigned rgba = color.rgba();
+    for (double x=x0; x<x1; x++)
+    {
+        pixmap_.setPixel(x, y0, rgba);
+        pixmap_.setPixel(x, y1, rgba);
+    }
+    for (double y=y0; y<y1; y++)
+    {
+        pixmap_.setPixel(x0, y, rgba);
+        pixmap_.setPixel(x1, y, rgba);
+    }
+}
+
 template class agg_renderer<image_32>;
 template void agg_renderer<image_32>::debug_draw_box<agg::rendering_buffer>(
                 agg::rendering_buffer& buf,

src/agg/process_building_symbolizer.cpp

@@ -82,32 +82,31 @@ void agg_renderer<T>::process(building_symbolizer const& sym,
             boost::scoped_ptr<geometry_type> frame(new geometry_type(LineString));
             boost::scoped_ptr<geometry_type> roof(new geometry_type(Polygon));
             std::deque<segment_t> face_segments;
-            double x0(0);
+            double x0 = 0;
-            double y0(0);
+            double y0 = 0;
-
+            double x,y;
             geom.rewind(0);
-            unsigned cm = geom.vertex(&x0,&y0);
+            for (unsigned cm = geom.vertex(&x, &y); cm != SEG_END;
-            for (unsigned j=1;j<geom.size();++j)
+                 cm = geom.vertex(&x, &y))
             {
-                double x(0);
-                double y(0);
-                cm = geom.vertex(&x,&y);
                 if (cm == SEG_MOVETO)
                 {
                     frame->move_to(x,y);
                 }
-                else if (cm == SEG_LINETO)
+                else if (cm == SEG_LINETO || cm == SEG_CLOSE)
                 {
                     frame->line_to(x,y);
                     face_segments.push_back(segment_t(x0,y0,x,y));
                 }
-
                 x0 = x;
                 y0 = y;
             }
+
             std::sort(face_segments.begin(),face_segments.end(), y_order);
             std::deque<segment_t>::const_iterator itr=face_segments.begin();
-            for (;itr!=face_segments.end();++itr)
+            std::deque<segment_t>::const_iterator end=face_segments.end();
+
+            for (; itr!=end; ++itr)
             {
                 boost::scoped_ptr<geometry_type> faces(new geometry_type(Polygon));
                 faces->move_to(itr->get<0>(),itr->get<1>());
@@ -120,22 +119,22 @@ void agg_renderer<T>::process(building_symbolizer const& sym,
                 ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(a * sym.get_opacity())));
                 agg::render_scanlines(*ras_ptr, sl, ren);
                 ras_ptr->reset();
-
+                //
                 frame->move_to(itr->get<0>(),itr->get<1>());
                 frame->line_to(itr->get<0>(),itr->get<1>()+height);
+
             }
 
             geom.rewind(0);
-            for (unsigned j=0;j<geom.size();++j)
+            for (unsigned cm = geom.vertex(&x, &y); cm != SEG_END;
+                 cm = geom.vertex(&x, &y))
             {
-                double x,y;
-                unsigned cm = geom.vertex(&x,&y);
                 if (cm == SEG_MOVETO)
                 {
                     frame->move_to(x,y+height);
                     roof->move_to(x,y+height);
                 }
-                else if (cm == SEG_LINETO)
+                else if (cm == SEG_LINETO || cm == SEG_CLOSE)
                 {
                     frame->line_to(x,y+height);
                     roof->line_to(x,y+height);
@@ -153,6 +152,7 @@ void agg_renderer<T>::process(building_symbolizer const& sym,
             ras_ptr->add_path(roof_path);
             ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
             agg::render_scanlines(*ras_ptr, sl, ren);
+
         }
     }
 }

src/agg/process_line_pattern_symbolizer.cpp

@@ -56,7 +56,7 @@ void  agg_renderer<T>::process(line_pattern_symbolizer const& sym,
 {
     typedef agg::rgba8 color;
     typedef agg::order_rgba order;
-    typedef agg::pixel32_type pixel_type;    
+    typedef agg::pixel32_type pixel_type;
     typedef agg::comp_op_adaptor_rgba_pre<color, order> blender_type;
     typedef agg::pattern_filter_bilinear_rgba8 pattern_filter_type;
     typedef agg::line_image_pattern<pattern_filter_type> pattern_type;
@@ -64,7 +64,7 @@ void  agg_renderer<T>::process(line_pattern_symbolizer const& sym,
     typedef agg::renderer_base<pixfmt_type> renderer_base;
     typedef agg::renderer_outline_image<renderer_base, pattern_type> renderer_type;
     typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type;
-    
+
     std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
 
     boost::optional<marker_ptr> mark = marker_cache::instance()->find(filename,true);
@@ -81,8 +81,6 @@ void  agg_renderer<T>::process(line_pattern_symbolizer const& sym,
 
     if (!pat) return;
 
-    box2d<double> ext = query_extent_ * 1.0;
-    
     agg::rendering_buffer buf(current_buffer_->raw_data(),width_,height_, width_ * 4);
     pixfmt_type pixf(buf);
     pixf.comp_op(static_cast<agg::comp_op_e>(sym.comp_op()));
@@ -91,26 +89,40 @@ void  agg_renderer<T>::process(line_pattern_symbolizer const& sym,
 
     pattern_source source(*(*pat));
     pattern_type pattern (filter,source);
-    renderer_type ren(ren_base, pattern);    
+    renderer_type ren(ren_base, pattern);
     rasterizer_type ras(ren);
-    
+
     agg::trans_affine tr;
     evaluate_transform(tr, feature, sym.get_transform());
 
+    box2d<double> clipping_extent = query_extent_;
+    if (sym.clip())
+    {
+        double padding = (double)(query_extent_.width()/pixmap_.width());
+        float half_stroke = (*mark)->width()/2.0;
+        if (half_stroke > 1)
+            padding *= half_stroke;
+        double x0 = query_extent_.minx();
+        double y0 = query_extent_.miny();
+        double x1 = query_extent_.maxx();
+        double y1 = query_extent_.maxy();
+        clipping_extent.init(x0 - padding, y0 - padding, x1 + padding , y1 + padding);
+    }
+
     typedef boost::mpl::vector<clip_line_tag,transform_tag,smooth_tag> conv_types;
     vertex_converter<box2d<double>, rasterizer_type, line_pattern_symbolizer,
                      CoordTransform, proj_transform, agg::trans_affine, conv_types>
-        converter(ext,ras,sym,t_,prj_trans,tr,scale_factor_);
+        converter(clipping_extent,ras,sym,t_,prj_trans,tr,scale_factor_);
-    
+
     if (sym.clip()) converter.set<clip_line_tag>(); //optional clip (default: true)
-    converter.set<transform_tag>(); //always transform 
+    converter.set<transform_tag>(); //always transform
     if (sym.smooth() > 0.0) converter.set<smooth_tag>(); // optional smooth converter
-    
+
     BOOST_FOREACH(geometry_type & geom, feature.paths())
     {
         if (geom.size() > 1)
         {
-            converter.apply(geom);        
+            converter.apply(geom);
         }
     }
 }

src/agg/process_line_symbolizer.cpp

@@ -47,7 +47,6 @@
 
 namespace mapnik {
 
-
 template <typename T>
 void agg_renderer<T>::process(line_symbolizer const& sym,
                               mapnik::feature_impl & feature,
@@ -60,7 +59,7 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
     unsigned g=col.green();
     unsigned b=col.blue();
     unsigned a=col.alpha();
-    
+
     ras_ptr->reset();
     set_gamma_method(stroke_, ras_ptr);
 
@@ -76,11 +75,28 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
     pixfmt_comp_type pixf(buf);
     pixf.comp_op(static_cast<agg::comp_op_e>(sym.comp_op()));
     renderer_base renb(pixf);
-    
+
     agg::trans_affine tr;
     evaluate_transform(tr, feature, sym.get_transform());
 
-    box2d<double> ext = query_extent_ * 1.1;
+    box2d<double> clipping_extent = query_extent_;
+    if (sym.clip())
+    {
+        double padding = (double)(query_extent_.width()/pixmap_.width());
+        float half_stroke = stroke_.get_width()/2.0;
+        if (half_stroke > 1)
+            padding *= half_stroke;
+        if (fabs(sym.offset()) > 0)
+            padding *= fabs(sym.offset()) * 1.2;
+        double x0 = query_extent_.minx();
+        double y0 = query_extent_.miny();
+        double x1 = query_extent_.maxx();
+        double y1 = query_extent_.maxy();
+        clipping_extent.init(x0 - padding, y0 - padding, x1 + padding , y1 + padding);
+        // debugging
+        //box2d<double> inverse(x0 + padding, y0 + padding, x1 - padding , y1 - padding);
+        //draw_geo_extent(inverse,mapnik::color("red"));
+    }
 
     if (sym.get_rasterizer() == RASTERIZER_FAST)
     {
@@ -94,11 +110,12 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
         rasterizer_type ras(ren);
         set_join_caps_aa(stroke_,ras);
 
-        typedef boost::mpl::vector<clip_line_tag,transform_tag, offset_transform_tag, affine_transform_tag, smooth_tag, dash_tag, stroke_tag> conv_types;
+        typedef boost::mpl::vector<clip_line_tag, transform_tag,
+                                   offset_transform_tag, affine_transform_tag,
+                                   smooth_tag, dash_tag, stroke_tag> conv_types;
         vertex_converter<box2d<double>, rasterizer_type, line_symbolizer,
                          CoordTransform, proj_transform, agg::trans_affine, conv_types>
-            converter(ext,ras,sym,t_,prj_trans,tr,scaled);
+            converter(clipping_extent,ras,sym,t_,prj_trans,tr,scaled);
-
         if (sym.clip()) converter.set<clip_line_tag>(); // optional clip (default: true)
         converter.set<transform_tag>(); // always transform
         if (fabs(sym.offset()) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
@@ -117,10 +134,12 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
     }
     else
     {
-        typedef boost::mpl::vector<clip_line_tag,transform_tag, offset_transform_tag, affine_transform_tag, smooth_tag, dash_tag, stroke_tag> conv_types;
+        typedef boost::mpl::vector<clip_line_tag, transform_tag, offset_transform_tag,
+                                   affine_transform_tag, smooth_tag, dash_tag, stroke_tag> conv_types;
+
         vertex_converter<box2d<double>, rasterizer, line_symbolizer,
                          CoordTransform, proj_transform, agg::trans_affine, conv_types>
-            converter(ext,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
+            converter(clipping_extent,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
 
         if (sym.clip()) converter.set<clip_line_tag>(); // optional clip (default: true)
         converter.set<transform_tag>(); // always transform

src/agg/process_markers_symbolizer.cpp

@@ -21,23 +21,27 @@
  *****************************************************************************/
 
 // mapnik
-#include <mapnik/debug.hpp>
 #include <mapnik/graphics.hpp>
-#include <mapnik/geom_util.hpp>
 #include <mapnik/agg_renderer.hpp>
 #include <mapnik/agg_rasterizer.hpp>
+
+#include <mapnik/debug.hpp>
+#include <mapnik/geom_util.hpp>
 #include <mapnik/expression_evaluator.hpp>
 #include <mapnik/vertex_converters.hpp>
+#include <mapnik/marker_helpers.hpp>
 #include <mapnik/marker.hpp>
 #include <mapnik/marker_cache.hpp>
-#include <mapnik/marker_helpers.hpp>
 #include <mapnik/svg/svg_renderer.hpp>
+#include <mapnik/svg/svg_storage.hpp>
 #include <mapnik/svg/svg_path_adapter.hpp>
-#include <mapnik/markers_placement.hpp>
+#include <mapnik/svg/svg_path_attributes.hpp>
 #include <mapnik/markers_symbolizer.hpp>
 
 // agg
 #include "agg_basics.h"
+#include "agg_renderer_base.h"
+#include "agg_renderer_scanline.h"
 #include "agg_rendering_buffer.h"
 #include "agg_pixfmt_rgba.h"
 #include "agg_rasterizer_scanline_aa.h"
@@ -45,234 +49,13 @@
 #include "agg_path_storage.h"
 #include "agg_conv_clip_polyline.h"
 #include "agg_conv_transform.h"
-#include "agg_image_filters.h"
+
-#include "agg_trans_bilinear.h"
+
-#include "agg_span_allocator.h"
-#include "agg_image_accessors.h"
-#include "agg_span_image_filter_rgba.h"
 // boost
 #include <boost/optional.hpp>
 
 namespace mapnik {
 
-template <typename BufferType, typename SvgRenderer, typename Rasterizer, typename Detector>
-struct vector_markers_rasterizer_dispatch
-{
-    typedef agg::rgba8 color_type;
-    typedef agg::order_rgba order_type;
-    typedef agg::pixel32_type pixel_type;
-    typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
-    typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
-    typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
-    typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
-
-    vector_markers_rasterizer_dispatch(BufferType & image_buffer,
-                                SvgRenderer & svg_renderer,
-                                Rasterizer & ras,
-                                box2d<double> const& bbox,
-                                agg::trans_affine const& marker_trans,
-                                markers_symbolizer const& sym,
-                                Detector & detector,
-                                double scale_factor)
-        : buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
-        pixf_(buf_),
-        renb_(pixf_),
-        svg_renderer_(svg_renderer),
-        ras_(ras),
-        bbox_(bbox),
-        marker_trans_(marker_trans),
-        sym_(sym),
-        detector_(detector),
-        scale_factor_(scale_factor)
-    {
-        pixf_.comp_op(static_cast<agg::comp_op_e>(sym_.comp_op()));
-    }
-
-    template <typename T>
-    void add_path(T & path)
-    {
-        marker_placement_e placement_method = sym_.get_marker_placement();
-
-        if (placement_method == MARKER_POINT_PLACEMENT)
-        {
-            double x,y;
-            path.rewind(0);
-            label::interior_position(path, x, y);
-            agg::trans_affine matrix = marker_trans_;
-            matrix.translate(x,y);
-            box2d<double> transformed_bbox = bbox_ * matrix;
-
-            if (sym_.get_allow_overlap() ||
-                detector_.has_placement(transformed_bbox))
-            {
-                svg_renderer_.render(ras_, sl_, renb_, matrix, sym_.get_opacity(), bbox_);
-
-                if (!sym_.get_ignore_placement())
-                    detector_.insert(transformed_bbox);
-            }
-        }
-        else
-        {
-            markers_placement<T, label_collision_detector4> placement(path, bbox_, marker_trans_, detector_,
-                                                                      sym_.get_spacing() * scale_factor_,
-                                                                      sym_.get_max_error(),
-                                                                      sym_.get_allow_overlap());
-            double x, y, angle;
-            while (placement.get_point(x, y, angle))
-            {
-                agg::trans_affine matrix = marker_trans_;
-                matrix.rotate(angle);
-                matrix.translate(x, y);
-                svg_renderer_.render(ras_, sl_, renb_, matrix, sym_.get_opacity(), bbox_);
-            }
-        }
-    }
-private:
-    agg::scanline_u8 sl_;
-    agg::rendering_buffer buf_;
-    pixfmt_comp_type pixf_;
-    renderer_base renb_;
-    SvgRenderer & svg_renderer_;
-    Rasterizer & ras_;
-    box2d<double> const& bbox_;
-    agg::trans_affine const& marker_trans_;
-    markers_symbolizer const& sym_;
-    Detector & detector_;
-    double scale_factor_;
-};
-
-template <typename Rasterizer, typename RendererBuffer>
-void render_raster_marker(Rasterizer & ras, RendererBuffer & renb,
-                          agg::scanline_u8 & sl, image_data_32 const& src,
-                          agg::trans_affine const& marker_tr, double opacity)
-{
-
-    double width  = src.width();
-    double height = src.height();
-    double p[8];
-    p[0] = 0;     p[1] = 0;
-    p[2] = width; p[3] = 0;
-    p[4] = width; p[5] = height;
-    p[6] = 0;     p[7] = height;
-
-    marker_tr.transform(&p[0], &p[1]);
-    marker_tr.transform(&p[2], &p[3]);
-    marker_tr.transform(&p[4], &p[5]);
-    marker_tr.transform(&p[6], &p[7]);
-
-    ras.move_to_d(p[0],p[1]);
-    ras.line_to_d(p[2],p[3]);
-    ras.line_to_d(p[4],p[5]);
-    ras.line_to_d(p[6],p[7]);
-
-    typedef agg::rgba8 color_type;
-    agg::span_allocator<color_type> sa;
-    agg::image_filter_bilinear filter_kernel;
-    agg::image_filter_lut filter(filter_kernel, false);
-
-    agg::rendering_buffer marker_buf((unsigned char *)src.getBytes(),
-                                     src.width(),
-                                     src.height(),
-                                     src.width()*4);
-    agg::pixfmt_rgba32_pre pixf(marker_buf);
-
-    typedef agg::image_accessor_clone<agg::pixfmt_rgba32_pre> img_accessor_type;
-    typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
-    typedef agg::span_image_filter_rgba_2x2<img_accessor_type,
-                                            interpolator_type> span_gen_type;
-    img_accessor_type ia(pixf);
-    interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
-    span_gen_type sg(ia, interpolator, filter);
-    agg::render_scanlines_aa(ras, sl, renb, sa, sg);
-}
-
-template <typename BufferType, typename Rasterizer, typename Detector>
-struct raster_markers_rasterizer_dispatch
-{
-    typedef agg::rgba8 color_type;
-    typedef agg::order_rgba order_type;
-    typedef agg::pixel32_type pixel_type;
-    typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
-    typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
-    typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
-    typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
-
-    raster_markers_rasterizer_dispatch(BufferType & image_buffer,
-                                       Rasterizer & ras,
-                                       image_data_32 const& src,
-                                       agg::trans_affine const& marker_trans,
-                                       markers_symbolizer const& sym,
-                                       Detector & detector,
-                                       double scale_factor)
-        : buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
-        pixf_(buf_),
-        renb_(pixf_),
-        ras_(ras),
-        src_(src),
-        marker_trans_(marker_trans),
-        sym_(sym),
-        detector_(detector),
-        scale_factor_(scale_factor)
-    {
-        pixf_.comp_op(static_cast<agg::comp_op_e>(sym_.comp_op()));
-    }
-
-    template <typename T>
-    void add_path(T & path)
-    {
-        marker_placement_e placement_method = sym_.get_marker_placement();
-        box2d<double> bbox_(0,0, src_.width(),src_.height());
-
-        if (placement_method == MARKER_POINT_PLACEMENT)
-        {
-            double x,y;
-            path.rewind(0);
-            label::interior_position(path, x, y);
-            agg::trans_affine matrix = marker_trans_;
-            matrix.translate(x,y);
-            box2d<double> transformed_bbox = bbox_ * matrix;
-
-            if (sym_.get_allow_overlap() ||
-                detector_.has_placement(transformed_bbox))
-            {
-
-                render_raster_marker(ras_, renb_, sl_, src_,
-                                     matrix, sym_.get_opacity());
-                if (!sym_.get_ignore_placement())
-                    detector_.insert(transformed_bbox);
-            }
-        }
-        else
-        {
-            markers_placement<T, label_collision_detector4> placement(path, bbox_, marker_trans_, detector_,
-                                                                      sym_.get_spacing() * scale_factor_,
-                                                                      sym_.get_max_error(),
-                                                                      sym_.get_allow_overlap());
-            double x, y, angle;
-            while (placement.get_point(x, y, angle))
-            {
-                agg::trans_affine matrix = marker_trans_;
-                matrix.rotate(angle);
-                matrix.translate(x,y);
-                render_raster_marker(ras_, renb_, sl_, src_,
-                                     matrix, sym_.get_opacity());
-            }
-        }
-    }
-private:
-    agg::scanline_u8 sl_;
-    agg::rendering_buffer buf_;
-    pixfmt_comp_type pixf_;
-    renderer_base renb_;
-    Rasterizer & ras_;
-    image_data_32 const& src_;
-    agg::trans_affine const& marker_trans_;
-    markers_symbolizer const& sym_;
-    Detector & detector_;
-    double scale_factor_;
-};
-
-
 template <typename T>
 void agg_renderer<T>::process(markers_symbolizer const& sym,
                               feature_impl & feature,
@@ -284,9 +67,8 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
     typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
     typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
     typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
-    typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
     typedef label_collision_detector4 detector_type;
-    typedef boost::mpl::vector<clip_line_tag,transform_tag,smooth_tag> conv_types;
+    typedef boost::mpl::vector<clip_line_tag,clip_poly_tag,transform_tag,smooth_tag> conv_types;
 
     std::string filename = path_processor_type::evaluate(*sym.get_filename(), feature);
 
@@ -297,67 +79,124 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
         {
             ras_ptr->reset();
             ras_ptr->gamma(agg::gamma_power());
-
             agg::trans_affine geom_tr;
             evaluate_transform(geom_tr, feature, sym.get_transform());
-
-            box2d<double> const& bbox = (*mark)->bounding_box();
             agg::trans_affine tr;
-            setup_label_transform(tr, bbox, feature, sym);
+            tr *= agg::trans_affine_scaling(scale_factor_);
-            tr = agg::trans_affine_scaling(scale_factor_) * tr;
-            coord2d center = bbox.center();
-            agg::trans_affine_translation recenter(-center.x, -center.y);
-            agg::trans_affine marker_trans = recenter * tr;
 
             if ((*mark)->is_vector())
             {
                 using namespace mapnik::svg;
-                boost::optional<path_ptr> marker = (*mark)->get_vector_data();
+                typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
-
+                typedef agg::pod_bvector<path_attributes> svg_attribute_type;
-
-                vertex_stl_adapter<svg_path_storage> stl_storage((*marker)->source());
-                svg_path_adapter svg_path(stl_storage);
-
-                agg::pod_bvector<path_attributes> attributes;
-                bool result = push_explicit_style( (*marker)->attributes(), attributes, sym);
-
                 typedef svg_renderer<svg_path_adapter,
-                                     agg::pod_bvector<path_attributes>,
+                                     svg_attribute_type,
                                      renderer_type,
-                                     agg::pixfmt_rgba32 > svg_renderer_type;
+                                     pixfmt_comp_type > svg_renderer_type;
-                typedef vector_markers_rasterizer_dispatch<buffer_type, svg_renderer_type, rasterizer, detector_type> dispatch_type;
+                typedef vector_markers_rasterizer_dispatch<buffer_type,
+                                     svg_renderer_type,
+                                     rasterizer,
+                                     detector_type > dispatch_type;
+                boost::optional<svg_path_ptr> const& stock_vector_marker = (*mark)->get_vector_data();
+                expression_ptr const& width_expr = sym.get_width();
+                expression_ptr const& height_expr = sym.get_height();
 
-
+                // special case for simple ellipse markers
-                svg_renderer_type svg_renderer(svg_path, result ? attributes : (*marker)->attributes());
+                // to allow for full control over rx/ry dimensions
-
+                if (filename == "shape://ellipse"
-                dispatch_type rasterizer_dispatch(*current_buffer_,svg_renderer,*ras_ptr,
+                   && (width_expr || height_expr))
-                                                  bbox, marker_trans, sym, *detector_, scale_factor_);
-
-
-                vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
-                                 CoordTransform, proj_transform, agg::trans_affine, conv_types>
-                    converter(query_extent_* 1.1,rasterizer_dispatch, sym,t_,prj_trans,tr,scale_factor_);
-
-                if (sym.clip()) converter.template set<clip_line_tag>(); //optional clip (default: true)
-                converter.template set<transform_tag>(); //always transform
-                if (sym.smooth() > 0.0) converter.template set<smooth_tag>(); // optional smooth converter
-
-                BOOST_FOREACH(geometry_type & geom, feature.paths())
                 {
-                    converter.apply(geom);
+                    svg_storage_type marker_ellipse;
+                    vertex_stl_adapter<svg_path_storage> stl_storage(marker_ellipse.source());
+                    svg_path_adapter svg_path(stl_storage);
+                    build_ellipse(sym, feature, marker_ellipse, svg_path);
+                    svg_attribute_type attributes;
+                    bool result = push_explicit_style( (*stock_vector_marker)->attributes(), attributes, sym);
+                    svg_renderer_type svg_renderer(svg_path, result ? attributes : (*stock_vector_marker)->attributes());
+                    evaluate_transform(tr, feature, sym.get_image_transform());
+                    box2d<double> bbox = marker_ellipse.bounding_box();
+                    coord2d center = bbox.center();
+                    agg::trans_affine_translation recenter(-center.x, -center.y);
+                    agg::trans_affine marker_trans = recenter * tr;
+                    dispatch_type rasterizer_dispatch(*current_buffer_,svg_renderer,*ras_ptr,
+                                                      bbox, marker_trans, sym, *detector_, scale_factor_);
+                    vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
+                                     CoordTransform, proj_transform, agg::trans_affine, conv_types>
+                        converter(query_extent_, rasterizer_dispatch, sym,t_,prj_trans,tr,scale_factor_);
+                    if (sym.clip() && feature.paths().size() > 0) // optional clip (default: true)
+                    {
+                        eGeomType type = feature.paths()[0].type();
+                        if (type == Polygon)
+                            converter.template set<clip_poly_tag>();
+                        else if (type == LineString)
+                            converter.template set<clip_line_tag>();
+                        // don't clip if type==Point
+                    }
+                    converter.template set<transform_tag>(); //always transform
+                    if (sym.smooth() > 0.0) converter.template set<smooth_tag>(); // optional smooth converter
+                    BOOST_FOREACH(geometry_type & geom, feature.paths())
+                    {
+                        converter.apply(geom);
+                    }
+                }
+                else
+                {
+                    box2d<double> const& bbox = (*mark)->bounding_box();
+                    setup_label_transform(tr, bbox, feature, sym);
+                    coord2d center = bbox.center();
+                    agg::trans_affine_translation recenter(-center.x, -center.y);
+                    agg::trans_affine marker_trans = recenter * tr;
+                    vertex_stl_adapter<svg_path_storage> stl_storage((*stock_vector_marker)->source());
+                    svg_path_adapter svg_path(stl_storage);
+                    svg_attribute_type attributes;
+                    bool result = push_explicit_style( (*stock_vector_marker)->attributes(), attributes, sym);
+                    svg_renderer_type svg_renderer(svg_path, result ? attributes : (*stock_vector_marker)->attributes());
+                    dispatch_type rasterizer_dispatch(*current_buffer_,svg_renderer,*ras_ptr,
+                                                      bbox, marker_trans, sym, *detector_, scale_factor_);
+                    vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
+                                     CoordTransform, proj_transform, agg::trans_affine, conv_types>
+                        converter(query_extent_, rasterizer_dispatch, sym,t_,prj_trans,tr,scale_factor_);
+                    if (sym.clip() && feature.paths().size() > 0) // optional clip (default: true)
+                    {
+                        eGeomType type = feature.paths()[0].type();
+                        if (type == Polygon)
+                            converter.template set<clip_poly_tag>();
+                        else if (type == LineString)
+                            converter.template set<clip_line_tag>();
+                        // don't clip if type==Point
+                    }
+                    converter.template set<transform_tag>(); //always transform
+                    if (sym.smooth() > 0.0) converter.template set<smooth_tag>(); // optional smooth converter
+                    BOOST_FOREACH(geometry_type & geom, feature.paths())
+                    {
+                        converter.apply(geom);
+                    }
                 }
             }
             else // raster markers
             {
+                box2d<double> const& bbox = (*mark)->bounding_box();
+                setup_label_transform(tr, bbox, feature, sym);
+                coord2d center = bbox.center();
+                agg::trans_affine_translation recenter(-center.x, -center.y);
+                agg::trans_affine marker_trans = recenter * tr;
                 boost::optional<mapnik::image_ptr> marker = (*mark)->get_bitmap_data();
                 typedef raster_markers_rasterizer_dispatch<buffer_type,rasterizer, detector_type> dispatch_type;
                 dispatch_type rasterizer_dispatch(*current_buffer_,*ras_ptr, **marker,
                                                   marker_trans, sym, *detector_, scale_factor_);
                 vertex_converter<box2d<double>, dispatch_type, markers_symbolizer,
                                  CoordTransform, proj_transform, agg::trans_affine, conv_types>
-                    converter(query_extent_* 1.1, rasterizer_dispatch, sym,t_,prj_trans,tr,scale_factor_);
+                    converter(query_extent_, rasterizer_dispatch, sym,t_,prj_trans,tr,scale_factor_);
 
-                if (sym.clip()) converter.template set<clip_line_tag>(); //optional clip (default: true)
+                if (sym.clip() && feature.paths().size() > 0) // optional clip (default: true)
+                {
+                    eGeomType type = feature.paths()[0].type();
+                    if (type == Polygon)
+                        converter.template set<clip_poly_tag>();
+                    else if (type == LineString)
+                        converter.template set<clip_line_tag>();
+                    // don't clip if type==Point
+                }
                 converter.template set<transform_tag>(); //always transform
                 if (sym.smooth() > 0.0) converter.template set<smooth_tag>(); // optional smooth converter
 

src/agg/process_point_symbolizer.cpp

@@ -23,19 +23,16 @@
 // mapnik
 #include <mapnik/agg_renderer.hpp>
 #include <mapnik/agg_rasterizer.hpp>
-#include <mapnik/geom_util.hpp>
 #include <mapnik/image_util.hpp>
-#include <mapnik/metawriter.hpp>
+
+#include <mapnik/geom_util.hpp>
+#include <mapnik/point_symbolizer.hpp>
+#include <mapnik/expression_evaluator.hpp>
 #include <mapnik/marker.hpp>
 #include <mapnik/marker_cache.hpp>
-#include <mapnik/expression_evaluator.hpp>
 
 // agg
-#include "agg_basics.h"
+#include "agg_trans_affine.h"
-#include "agg_rendering_buffer.h"
-#include "agg_pixfmt_rgba.h"
-#include "agg_rasterizer_scanline_aa.h"
-#include "agg_scanline_u.h"
 
 // stl
 #include <string>
@@ -89,7 +86,6 @@ void agg_renderer<T>::process(point_symbolizer const& sym,
             prj_trans.backward(x,y,z);
             t_.forward(&x,&y);
             label_ext.re_center(x,y);
-
             if (sym.get_allow_overlap() ||
                 detector_->has_placement(label_ext))
             {
@@ -106,8 +102,8 @@ void agg_renderer<T>::process(point_symbolizer const& sym,
 
                 if (!sym.get_ignore_placement())
                     detector_->insert(label_ext);
-                metawriter_with_properties writer = sym.get_metawriter();
+                //metawriter_with_properties writer = sym.get_metawriter();
-                if (writer.first) writer.first->add_box(label_ext, feature, t_, writer.second);
+                //if (writer.first) writer.first->add_box(label_ext, feature, t_, writer.second);
             }
         }
     }

src/agg/process_polygon_pattern_symbolizer.cpp

@@ -139,11 +139,10 @@ void agg_renderer<T>::process(polygon_pattern_symbolizer const& sym,
     agg::trans_affine tr;
     evaluate_transform(tr, feature, sym.get_transform());
 
-    box2d<double> inflated_extent = query_extent_ * 1.0;
     typedef boost::mpl::vector<clip_poly_tag,transform_tag,smooth_tag> conv_types;
     vertex_converter<box2d<double>, rasterizer, polygon_pattern_symbolizer,
                      CoordTransform, proj_transform, agg::trans_affine, conv_types>
-        converter(inflated_extent,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
+        converter(query_extent_,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
 
     if (sym.clip()) converter.set<clip_poly_tag>(); //optional clip (default: true)
     converter.set<transform_tag>(); //always transform

src/agg/process_polygon_symbolizer.cpp

@@ -48,15 +48,13 @@ void agg_renderer<T>::process(polygon_symbolizer const& sym,
     ras_ptr->reset();
     set_gamma_method(sym,ras_ptr);
 
-    box2d<double> inflated_extent = query_extent_ * 1.0;
-
     agg::trans_affine tr;
     evaluate_transform(tr, feature, sym.get_transform());
 
     typedef boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,smooth_tag> conv_types;
     vertex_converter<box2d<double>, rasterizer, polygon_symbolizer,
                      CoordTransform, proj_transform, agg::trans_affine, conv_types>
-        converter(inflated_extent,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
+        converter(query_extent_,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
 
     if (sym.clip()) converter.set<clip_poly_tag>(); //optional clip (default: true)
     converter.set<transform_tag>(); //always transform
@@ -72,7 +70,7 @@ void agg_renderer<T>::process(polygon_symbolizer const& sym,
     }
 
     agg::rendering_buffer buf(current_buffer_->raw_data(),width_,height_, width_ * 4);
-    
+
     color const& fill = sym.get_fill();
     unsigned r=fill.red();
     unsigned g=fill.green();

src/build.py

@@ -171,7 +171,6 @@ source = Split(
     json/feature_grammar.cpp
     json/feature_collection_parser.cpp
     json/geojson_generator.cpp
-    markers_placement.cpp
     formatting/base.cpp
     formatting/expression.cpp
     formatting/list.cpp

src/cairo_renderer.cpp

@@ -497,7 +497,6 @@ public:
             }
             else if (cm == SEG_CLOSE)
             {
-                line_to(x, y);
                 close_path();
             }
         }
@@ -882,43 +881,32 @@ void cairo_renderer_base::process(building_symbolizer const& sym,
             boost::scoped_ptr<geometry_type> frame(new geometry_type(LineString));
             boost::scoped_ptr<geometry_type> roof(new geometry_type(Polygon));
             std::deque<segment_t> face_segments;
-            double x0(0);
+            double x0 = 0;
-            double y0(0);
+            double y0 = 0;
-
+            double x, y;
             geom.rewind(0);
-            unsigned cm = geom.vertex(&x0, &y0);
+            for (unsigned cm = geom.vertex(&x, &y); cm != SEG_END;
-
+                 cm = geom.vertex(&x, &y))
-            for (unsigned j = 1; j < geom.size(); ++j)
             {
-                double x=0;
-                double y=0;
-
-                cm = geom.vertex(&x,&y);
-
                 if (cm == SEG_MOVETO)
                 {
                     frame->move_to(x,y);
                 }
-                else if (cm == SEG_LINETO)
+                else if (cm == SEG_LINETO || cm == SEG_CLOSE)
                 {
                     frame->line_to(x,y);
+                    face_segments.push_back(segment_t(x0,y0,x,y));
                 }
-
-                if (j != 0)
-                {
-                    face_segments.push_back(segment_t(x0, y0, x, y));
-                }
-
                 x0 = x;
                 y0 = y;
             }
 
             std::sort(face_segments.begin(), face_segments.end(), y_order);
             std::deque<segment_t>::const_iterator itr = face_segments.begin();
-            for (; itr != face_segments.end(); ++itr)
+            std::deque<segment_t>::const_iterator end=face_segments.end();
+            for (; itr != end; ++itr)
             {
                 boost::scoped_ptr<geometry_type> faces(new geometry_type(Polygon));
-
                 faces->move_to(itr->get<0>(), itr->get<1>());
                 faces->line_to(itr->get<2>(), itr->get<3>());
                 faces->line_to(itr->get<2>(), itr->get<3>() + height);
@@ -935,20 +923,18 @@ void cairo_renderer_base::process(building_symbolizer const& sym,
             }
 
             geom.rewind(0);
-            for (unsigned j = 0; j < geom.size(); ++j)
+            for (unsigned cm = geom.vertex(&x, &y); cm != SEG_END;
+                 cm = geom.vertex(&x, &y))
             {
-                double x, y;
-                unsigned cm = geom.vertex(&x, &y);
-
                 if (cm == SEG_MOVETO)
                 {
-                    frame->move_to(x, y + height);
+                    frame->move_to(x,y+height);
-                    roof->move_to(x, y + height);
+                    roof->move_to(x,y+height);
                 }
-                else if (cm == SEG_LINETO)
+                else if (cm == SEG_LINETO || cm == SEG_CLOSE)
                 {
-                    frame->line_to(x, y + height);
+                    frame->line_to(x,y+height);
-                    roof->line_to(x, y + height);
+                    roof->line_to(x,y+height);
                 }
             }
 
@@ -987,14 +973,21 @@ void cairo_renderer_base::process(line_symbolizer const& sym,
     evaluate_transform(tr, feature, sym.get_transform());
 
     box2d<double> ext = query_extent_ * 1.1;
-    typedef boost::mpl::vector<clip_line_tag,transform_tag, offset_transform_tag, affine_transform_tag, smooth_tag> conv_types;
+    typedef boost::mpl::vector<clip_line_tag, clip_poly_tag, transform_tag, offset_transform_tag, affine_transform_tag, smooth_tag> conv_types;
     vertex_converter<box2d<double>, cairo_context, line_symbolizer,
                      CoordTransform, proj_transform, agg::trans_affine, conv_types>
         converter(ext,context,sym,t_,prj_trans,tr,scale_factor_);
 
-    if (sym.clip()) converter.set<clip_line_tag>(); // optional clip (default: true)
+    if (sym.clip() && feature.paths().size() > 0) // optional clip (default: true)
+    {
+        eGeomType type = feature.paths()[0].type();
+        if (type == Polygon)
+            converter.set<clip_poly_tag>();
+        else if (type == LineString)
+            converter.set<clip_line_tag>();
+        // don't clip if type==Point
+    }
     converter.set<transform_tag>(); // always transform
-
     if (fabs(sym.offset()) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
     converter.set<affine_transform_tag>(); // optional affine transform
     if (sym.smooth() > 0.0) converter.set<smooth_tag>(); // optional smooth converter
@@ -1035,7 +1028,7 @@ void cairo_renderer_base::render_marker(pixel_position const& pos, marker const&
 
         typedef coord_transform<CoordTransform,geometry_type> path_type;
         agg::trans_affine transform;
-        mapnik::path_ptr vmarker = *marker.get_vector_data();
+        mapnik::svg_path_ptr vmarker = *marker.get_vector_data();
         using namespace mapnik::svg;
         agg::pod_bvector<path_attributes> const & attributes_ = vmarker->attributes();
         for(unsigned i = 0; i < attributes_.size(); ++i)
@@ -1411,7 +1404,7 @@ void cairo_renderer_base::process(markers_symbolizer const& sym,
 
                 return;
             }
-            boost::optional<path_ptr> marker = (*mark)->get_vector_data();
+            boost::optional<svg_path_ptr> marker = (*mark)->get_vector_data();
             box2d<double> const& bbox = (*marker)->bounding_box();
             double x1 = bbox.minx();
             double y1 = bbox.miny();
@@ -1443,7 +1436,7 @@ void cairo_renderer_base::process(markers_symbolizer const& sym,
                     if (sym.get_allow_overlap() ||
                         detector_.has_placement(extent))
                     {
-                        render_marker(pixel_position(x - 0.5 * w, y - 0.5 * h) ,**mark, tr, sym.get_opacity());
+                        render_marker(pixel_position(x - 0.5 * w, y - 0.5 * h) ,**mark, tr, 1);
 
                         if (!sym.get_ignore_placement())
                             detector_.insert(extent);
@@ -1462,7 +1455,7 @@ void cairo_renderer_base::process(markers_symbolizer const& sym,
                     while (placement.get_point(x, y, angle))
                     {
                         agg::trans_affine matrix = recenter * tr * agg::trans_affine_rotation(angle) * agg::trans_affine_translation(x, y);
-                        render_marker(pixel_position(x - 0.5 * w, y - 0.5 * h), **mark, matrix, sym.get_opacity(),false);
+                        render_marker(pixel_position(x - 0.5 * w, y - 0.5 * h), **mark, matrix, 1,false);
                     }
                 }
                 context.fill();

src/feature_style_processor.cpp

@@ -102,35 +102,35 @@ struct feature_style_processor<Processor>::symbol_dispatch : public boost::stati
         : output_(output),
           f_(f),
           prj_trans_(prj_trans)  {}
-    
+
     template <typename T>
     void operator () (T const& sym) const
     {
         process_impl<has_process<Processor,T>::value>::process(output_,sym,f_,prj_trans_);
     }
-    
+
     Processor & output_;
     mapnik::feature_impl & f_;
     proj_transform const& prj_trans_;
 };
 
-typedef char (&no_tag)[1]; 
+typedef char (&no_tag)[1];
-typedef char (&yes_tag)[2]; 
+typedef char (&yes_tag)[2];
 
 template <typename T0, typename T1, void (T0::*)(T1 const&, mapnik::feature_impl &, proj_transform const&) >
-struct process_memfun_helper {}; 
+struct process_memfun_helper {};
-    
+
-template <typename T0, typename T1> no_tag  has_process_helper(...); 
+template <typename T0, typename T1> no_tag  has_process_helper(...);
 template <typename T0, typename T1> yes_tag has_process_helper(process_memfun_helper<T0, T1, &T0::process>* p);
-    
+
-template<typename T0,typename T1> 
+template<typename T0,typename T1>
 struct has_process
-{      
+{
     typedef typename T0::processor_impl_type processor_impl_type;
-    BOOST_STATIC_CONSTANT(bool 
+    BOOST_STATIC_CONSTANT(bool
-                          , value = sizeof(has_process_helper<processor_impl_type,T1>(0)) == sizeof(yes_tag) 
+                          , value = sizeof(has_process_helper<processor_impl_type,T1>(0)) == sizeof(yes_tag)
-        ); 
+        );
-}; 
+};
 
 
 template <typename Processor>
@@ -321,9 +321,11 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
     // if we've got this far, now prepare the unbuffered extent
     // which is used as a bbox for clipping geometries
     box2d<double> query_ext = m_.get_current_extent(); // unbuffered
-    if (maximum_extent) {
+    if (maximum_extent)
+    {
         query_ext.clip(*maximum_extent);
     }
+
     box2d<double> layer_ext2 = lay.envelope();
     if (fw_success)
     {
@@ -351,8 +353,8 @@ void feature_style_processor<Processor>::apply_to_layer(layer const& lay, Proces
     query q(layer_ext,res,scale_denom,m_.get_current_extent());
     std::vector<feature_type_style*> active_styles;
     attribute_collector collector(names);
-    double filt_factor = 1;
+    double filt_factor = 1.0;
-    directive_collector d_collector(&filt_factor);
+    directive_collector d_collector(filt_factor);
 
     // iterate through all named styles collecting active styles and attribute names
     BOOST_FOREACH(std::string const& style_name, style_names)
@@ -520,7 +522,7 @@ void feature_style_processor<Processor>::render_style(
 {
 
     p.start_style_processing(*style);
-    
+
 #if defined(RENDERING_STATS)
     std::ostringstream s1;
     s1 << "rendering style for layer: '" << lay.name()
@@ -662,4 +664,3 @@ template class feature_style_processor<grid_renderer<grid> >;
 template class feature_style_processor<agg_renderer<image_32> >;
 
 }
-

src/grid/grid_renderer.cpp

@@ -21,14 +21,15 @@
  *****************************************************************************/
 
 // mapnik
-#include <mapnik/layer.hpp>
-#include <mapnik/feature_type_style.hpp>
-#include <mapnik/debug.hpp>
 #include <mapnik/grid/grid_rasterizer.hpp>
 #include <mapnik/grid/grid_renderer.hpp>
 #include <mapnik/grid/grid_pixfmt.hpp>
 #include <mapnik/grid/grid_pixel.hpp>
 #include <mapnik/grid/grid.hpp>
+
+#include <mapnik/debug.hpp>
+#include <mapnik/layer.hpp>
+#include <mapnik/feature_type_style.hpp>
 #include <mapnik/marker.hpp>
 #include <mapnik/marker_cache.hpp>
 #include <mapnik/unicode.hpp>
@@ -56,13 +57,22 @@ grid_renderer<T>::grid_renderer(Map const& m, T & pixmap, double scale_factor, u
       width_(pixmap_.width()),
       height_(pixmap_.height()),
       scale_factor_(scale_factor),
+      // NOTE: can change this to m dims instead of pixmap_ if render-time
+      // resolution support is dropped from grid_renderer python interface
       t_(pixmap_.width(),pixmap_.height(),m.get_current_extent(),offset_x,offset_y),
       font_engine_(),
       font_manager_(font_engine_),
-      detector_(box2d<double>(-m.buffer_size(), -m.buffer_size(), pixmap_.width() + m.buffer_size(), pixmap_.height() + m.buffer_size())),
+      detector_(boost::make_shared<label_collision_detector4>(box2d<double>(-m.buffer_size(), -m.buffer_size(), m.width() + m.buffer_size() ,m.height() + m.buffer_size()))),
       ras_ptr(new grid_rasterizer)
+{
+    setup(m);
+}
+
+template <typename T>
+void grid_renderer<T>::setup(Map const& m)
 {
     MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: Scale=" << m.scale();
+    // nothing to do for grids yet on setup
 }
 
 template <typename T>
@@ -91,9 +101,25 @@ void grid_renderer<T>::start_layer_processing(layer const& lay, box2d<double> co
 
     if (lay.clear_label_cache())
     {
-        detector_.clear();
+        detector_->clear();
     }
     query_extent_ = query_extent;
+    int buffer_size = lay.buffer_size();
+    if (buffer_size != 0 )
+    {
+        double padding = buffer_size * (double)(query_extent.width()/pixmap_.width());
+        double x0 = query_extent_.minx();
+        double y0 = query_extent_.miny();
+        double x1 = query_extent_.maxx();
+        double y1 = query_extent_.maxy();
+        query_extent_.init(x0 - padding, y0 - padding, x1 + padding , y1 + padding);
+    }
+
+    boost::optional<box2d<double> > const& maximum_extent = lay.maximum_extent();
+    if (maximum_extent)
+    {
+        query_extent_.clip(*maximum_extent);
+    }
 }
 
 template <typename T>
@@ -144,21 +170,27 @@ void grid_renderer<T>::render_marker(mapnik::feature_impl & feature, unsigned in
     else
     {
         image_data_32 const& data = **marker.get_bitmap_data();
-        if (step == 1 && scale_factor_ == 1.0)
+        double width = data.width();
+        double height = data.height();
+        double cx = 0.5 * width;
+        double cy = 0.5 * height;
+        if (step == 1 && (std::fabs(1.0 - scale_factor_) < 0.001 && tr.is_identity()))
         {
+            // TODO - support opacity
             pixmap_.set_rectangle(feature.id(), data,
-                                  boost::math::iround(pos.x),
+                                  boost::math::iround(pos.x - cx),
-                                  boost::math::iround(pos.y));
+                                  boost::math::iround(pos.y - cy));
         }
         else
         {
+            // TODO - remove support for step != or add support for agg scaling with opacity
             double ratio = (1.0/step);
             image_data_32 target(ratio * data.width(), ratio * data.height());
             mapnik::scale_image_agg<image_data_32>(target,data, SCALING_NEAR,
                                                    scale_factor_, 0.0, 0.0, 1.0, ratio);
             pixmap_.set_rectangle(feature.id(), target,
-                                  boost::math::iround(pos.x),
+                                  boost::math::iround(pos.x - cx),
-                                  boost::math::iround(pos.y));
+                                  boost::math::iround(pos.y - cy));
         }
     }
     pixmap_.add_feature(feature);

src/grid/process_markers_symbolizer.cpp

@@ -20,22 +20,55 @@
  *
  *****************************************************************************/
 
+/*
+
+porting notes -->
+
+ - grid includes
+ - detector
+ - no gamma
+ - mapnik::pixfmt_gray32
+ - agg::scanline_bin sl
+ - grid_rendering_buffer
+ - agg::renderer_scanline_bin_solid
+ - clamping:
+    // - clamp sizes to > 4 pixels of interactivity
+    if (tr.scale() < 0.5)
+    {
+        agg::trans_affine tr2;
+        tr2 *= agg::trans_affine_scaling(0.5);
+        tr = tr2;
+    }
+    tr *= agg::trans_affine_scaling(scale_factor_*(1.0/pixmap_.get_resolution()));
+ - svg_renderer.render_id
+ - only encode feature if placements are found:
+    if (placed)
+    {
+        pixmap_.add_feature(feature);
+    }
+
+*/
+
 // mapnik
-#include <mapnik/debug.hpp>
 #include <mapnik/grid/grid_rasterizer.hpp>
 #include <mapnik/grid/grid_renderer.hpp>
 #include <mapnik/grid/grid_pixfmt.hpp>
 #include <mapnik/grid/grid_pixel.hpp>
 #include <mapnik/grid/grid.hpp>
+
+#include <mapnik/debug.hpp>
+#include <mapnik/geom_util.hpp>
+#include <mapnik/expression_evaluator.hpp>
+#include <mapnik/vertex_converters.hpp>
 #include <mapnik/marker.hpp>
 #include <mapnik/marker_cache.hpp>
 #include <mapnik/marker_helpers.hpp>
-#include <mapnik/markers_symbolizer.hpp>
-#include <mapnik/expression_evaluator.hpp>
-#include <mapnik/marker_cache.hpp>
 #include <mapnik/svg/svg_renderer.hpp>
+#include <mapnik/svg/svg_storage.hpp>
 #include <mapnik/svg/svg_path_adapter.hpp>
+#include <mapnik/svg/svg_path_attributes.hpp>
 #include <mapnik/markers_placement.hpp>
+#include <mapnik/markers_symbolizer.hpp>
 
 // agg
 #include "agg_basics.h"
@@ -46,6 +79,11 @@
 #include "agg_path_storage.h"
 #include "agg_conv_clip_polyline.h"
 #include "agg_conv_transform.h"
+#include "agg_image_filters.h"
+#include "agg_trans_bilinear.h"
+#include "agg_span_allocator.h"
+#include "agg_image_accessors.h"
+#include "agg_span_image_filter_rgba.h"
 
 // boost
 #include <boost/optional.hpp>
@@ -87,7 +125,7 @@ void grid_renderer<T>::process(markers_symbolizer const& sym,
             agg::trans_affine geom_tr;
             evaluate_transform(geom_tr, feature, sym.get_transform());
 
-            boost::optional<path_ptr> marker = (*mark)->get_vector_data();
+            boost::optional<svg_path_ptr> marker = (*mark)->get_vector_data();
             box2d<double> const& bbox = (*marker)->bounding_box();
 
             agg::trans_affine tr;
@@ -137,12 +175,12 @@ void grid_renderer<T>::process(markers_symbolizer const& sym,
                     box2d<double> transformed_bbox = bbox * matrix;
 
                     if (sym.get_allow_overlap() ||
-                        detector_.has_placement(transformed_bbox))
+                        detector_->has_placement(transformed_bbox))
                     {
                         placed = true;
-                        svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), matrix, sym.get_opacity(), bbox);
+                        svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), matrix, 1, bbox);
                         if (!sym.get_ignore_placement())
-                            detector_.insert(transformed_bbox);
+                            detector_->insert(transformed_bbox);
                     }
                 }
                 else if (sym.clip())
@@ -155,7 +193,7 @@ void grid_renderer<T>::process(markers_symbolizer const& sym,
                     clipped.clip_box(query_extent_.minx(),query_extent_.miny(),query_extent_.maxx(),query_extent_.maxy());
                     path_type path(t_,clipped,prj_trans);
                     transformed_path_type path_transformed(path,geom_tr);
-                    markers_placement<transformed_path_type, label_collision_detector4> placement(path_transformed, bbox, marker_trans, detector_,
+                    markers_placement<transformed_path_type, label_collision_detector4> placement(path_transformed, bbox, marker_trans, *detector_,
                                                                                                   sym.get_spacing() * scale_factor_,
                                                                                                   sym.get_max_error(),
                                                                                                   sym.get_allow_overlap());
@@ -166,7 +204,7 @@ void grid_renderer<T>::process(markers_symbolizer const& sym,
                         agg::trans_affine matrix = marker_trans;
                         matrix.rotate(angle);
                         matrix.translate(x, y);
-                        svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), matrix, sym.get_opacity(), bbox);
+                        svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), matrix, 1, bbox);
                     }
                 }
                 else
@@ -175,7 +213,7 @@ void grid_renderer<T>::process(markers_symbolizer const& sym,
                     typedef agg::conv_transform<path_type, agg::trans_affine> transformed_path_type;
                     path_type path(t_,geom,prj_trans);
                     transformed_path_type path_transformed(path,geom_tr);
-                    markers_placement<transformed_path_type, label_collision_detector4> placement(path_transformed, bbox, marker_trans, detector_,
+                    markers_placement<transformed_path_type, label_collision_detector4> placement(path_transformed, bbox, marker_trans, *detector_,
                                                                                                   sym.get_spacing() * scale_factor_,
                                                                                                   sym.get_max_error(),
                                                                                                   sym.get_allow_overlap());
@@ -186,7 +224,7 @@ void grid_renderer<T>::process(markers_symbolizer const& sym,
                         agg::trans_affine matrix = marker_trans;
                         matrix.rotate(angle);
                         matrix.translate(x, y);
-                        svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), matrix, sym.get_opacity(), bbox);
+                        svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), matrix, 1, bbox);
                     }
                 }
             }

src/grid/process_point_symbolizer.cpp

@@ -26,15 +26,22 @@
 #include <mapnik/grid/grid_pixfmt.hpp>
 #include <mapnik/grid/grid_pixel.hpp>
 #include <mapnik/grid/grid.hpp>
+
 #include <mapnik/geom_util.hpp>
 #include <mapnik/point_symbolizer.hpp>
 #include <mapnik/expression_evaluator.hpp>
 #include <mapnik/marker.hpp>
 #include <mapnik/marker_cache.hpp>
 
+// agg
+#include "agg_trans_affine.h"
+
 // stl
 #include <string>
 
+// boost
+#include <boost/make_shared.hpp>
+
 namespace mapnik {
 
 template <typename T>
@@ -57,14 +64,14 @@ void grid_renderer<T>::process(point_symbolizer const& sym,
     if (marker)
     {
         box2d<double> const& bbox = (*marker)->bounding_box();
-        coord2d const center = bbox.center();
+        coord2d center = bbox.center();
 
         agg::trans_affine tr;
         evaluate_transform(tr, feature, sym.get_image_transform());
         tr = agg::trans_affine_scaling(scale_factor_) * tr;
 
-        agg::trans_affine_translation const recenter(-center.x, -center.y);
+        agg::trans_affine_translation recenter(-center.x, -center.y);
-        agg::trans_affine const recenter_tr = recenter * tr;
+        agg::trans_affine recenter_tr = recenter * tr;
         box2d<double> label_ext = bbox * recenter_tr;
 
         for (unsigned i=0; i<feature.num_geometries(); ++i)
@@ -82,7 +89,7 @@ void grid_renderer<T>::process(point_symbolizer const& sym,
             t_.forward(&x,&y);
             label_ext.re_center(x,y);
             if (sym.get_allow_overlap() ||
-                detector_.has_placement(label_ext))
+                detector_->has_placement(label_ext))
             {
 
                 render_marker(feature,
@@ -94,7 +101,7 @@ void grid_renderer<T>::process(point_symbolizer const& sym,
                               sym.comp_op());
 
                 if (!sym.get_ignore_placement())
-                    detector_.insert(label_ext);
+                    detector_->insert(label_ext);
             }
         }
     }

src/grid/process_shield_symbolizer.cpp

@@ -47,7 +47,7 @@ void  grid_renderer<T>::process(shield_symbolizer const& sym,
             sym, feature, prj_trans,
             width_, height_,
             scale_factor_,
-            t_, font_manager_, detector_,
+            t_, font_manager_, *detector_,
             query_extent_);
     bool placement_found = false;
 

src/grid/process_text_symbolizer.cpp

@@ -37,7 +37,7 @@ void grid_renderer<T>::process(text_symbolizer const& sym,
             sym, feature, prj_trans,
             width_, height_,
             scale_factor_ * (1.0/pixmap_.get_resolution()),
-            t_, font_manager_, detector_,
+            t_, font_manager_, *detector_,
             query_extent_);
     bool placement_found = false;
 

src/layer.cpp

@@ -42,7 +42,8 @@ layer::layer(std::string const& name, std::string const& srs)
       clear_label_cache_(false),
       cache_features_(false),
       group_by_(""),
-      ds_() {}
+      ds_(),
+      buffer_size_(0) {}
 
 layer::layer(const layer& rhs)
     : name_(rhs.name_),
@@ -55,7 +56,9 @@ layer::layer(const layer& rhs)
       cache_features_(rhs.cache_features_),
       group_by_(rhs.group_by_),
       styles_(rhs.styles_),
-      ds_(rhs.ds_) {}
+      ds_(rhs.ds_),
+      buffer_size_(rhs.buffer_size_),
+      maximum_extent_(rhs.maximum_extent_) {}
 
 layer& layer::operator=(const layer& rhs)
 {
@@ -82,6 +85,8 @@ void layer::swap(const layer& rhs)
     group_by_ = rhs.group_by_;
     styles_=rhs.styles_;
     ds_=rhs.ds_;
+    buffer_size_ = rhs.buffer_size_;
+    maximum_extent_ = rhs.maximum_extent_;
 }
 
 layer::~layer() {}
@@ -176,6 +181,31 @@ void layer::set_datasource(datasource_ptr const& ds)
     ds_ = ds;
 }
 
+void layer::set_maximum_extent(box2d<double> const& box)
+{
+    maximum_extent_.reset(box);
+}
+
+boost::optional<box2d<double> > const& layer::maximum_extent() const
+{
+    return maximum_extent_;
+}
+
+void layer::reset_maximum_extent()
+{
+    maximum_extent_.reset();
+}
+
+void layer::set_buffer_size(int size)
+{
+    buffer_size_ = size;
+}
+
+int layer::buffer_size() const
+{
+    return buffer_size_;
+}
+
 box2d<double> layer::envelope() const
 {
     if (ds_) return ds_->envelope();

src/load_map.cpp

@@ -575,66 +575,95 @@ bool map_parser::parse_font(font_set &fset, xml_node const& f)
     return false;
 }
 
-void map_parser::parse_layer(Map & map, xml_node const& lay)
+void map_parser::parse_layer(Map & map, xml_node const& node)
 {
     std::string name;
     try
     {
-        name = lay.get_attr("name", std::string("Unnamed"));
+        name = node.get_attr("name", std::string("Unnamed"));
 
         // XXX if no projection is given inherit from map? [DS]
-        std::string srs = lay.get_attr("srs", map.srs());
+        std::string srs = node.get_attr("srs", map.srs());
 
         layer lyr(name, srs);
 
-        optional<boolean> status = lay.get_opt_attr<boolean>("status");
+        optional<boolean> status = node.get_opt_attr<boolean>("status");
         if (status)
         {
             lyr.set_active(* status);
         }
 
-        optional<double> min_zoom = lay.get_opt_attr<double>("minzoom");
+        optional<double> min_zoom = node.get_opt_attr<double>("minzoom");
         if (min_zoom)
         {
             lyr.set_min_zoom(* min_zoom);
         }
 
 
-        optional<double> max_zoom = lay.get_opt_attr<double>("maxzoom");
+        optional<double> max_zoom = node.get_opt_attr<double>("maxzoom");
         if (max_zoom)
         {
             lyr.set_max_zoom(* max_zoom);
         }
 
-        optional<boolean> queryable = lay.get_opt_attr<boolean>("queryable");
+        optional<boolean> queryable = node.get_opt_attr<boolean>("queryable");
         if (queryable)
         {
             lyr.set_queryable(* queryable);
         }
 
         optional<boolean> clear_cache =
-            lay.get_opt_attr<boolean>("clear-label-cache");
+            node.get_opt_attr<boolean>("clear-label-cache");
         if (clear_cache)
         {
             lyr.set_clear_label_cache(* clear_cache);
         }
 
         optional<boolean> cache_features =
-            lay.get_opt_attr<boolean>("cache-features");
+            node.get_opt_attr<boolean>("cache-features");
         if (cache_features)
         {
             lyr.set_cache_features(* cache_features);
         }
 
         optional<std::string> group_by =
-            lay.get_opt_attr<std::string>("group-by");
+            node.get_opt_attr<std::string>("group-by");
         if (group_by)
         {
             lyr.set_group_by(* group_by);
         }
 
-        xml_node::const_iterator child = lay.begin();
+        optional<unsigned> buffer_size = node.get_opt_attr<unsigned>("buffer-size");
-        xml_node::const_iterator end = lay.end();
+        if (buffer_size)
+        {
+            lyr.set_buffer_size(*buffer_size);
+        }
+
+        optional<std::string> maximum_extent = node.get_opt_attr<std::string>("maximum-extent");
+        if (maximum_extent)
+        {
+            box2d<double> box;
+            if (box.from_string(*maximum_extent))
+            {
+                lyr.set_maximum_extent(box);
+            }
+            else
+            {
+                std::ostringstream s_err;
+                s_err << "failed to parse 'maximum-extent' in layer " << name;
+                if (strict_)
+                {
+                    throw config_error(s_err.str());
+                }
+                else
+                {
+                    MAPNIK_LOG_WARN(load_map) << "map_parser: " << s_err.str();
+                }
+            }
+        }
+
+        xml_node::const_iterator child = node.begin();
+        xml_node::const_iterator end = node.end();
 
         for(; child != end; ++child)
         {
@@ -719,7 +748,7 @@ void map_parser::parse_layer(Map & map, xml_node const& lay)
     {
         if (!name.empty())
         {
-            ex.append_context(std::string(" encountered during parsing of layer '") + name + "'", lay);
+            ex.append_context(std::string(" encountered during parsing of layer '") + name + "'", node);
         }
         throw;
     }
@@ -894,7 +923,7 @@ void map_parser::parse_point_symbolizer(rule & rule, xml_node const & sym)
             symbol.set_ignore_placement(* ignore_placement);
         }
         point_placement_e placement =
-            sym.get_attr<point_placement_e>("placement", CENTROID_POINT_PLACEMENT);
+            sym.get_attr<point_placement_e>("placement", symbol.get_point_placement());
         symbol.set_point_placement(placement);
 
         if (file && !file->empty())
@@ -1018,9 +1047,13 @@ void map_parser::parse_markers_symbolizer(rule & rule, xml_node const& node)
             sym.set_filename(expr);
         }
 
+        // overall opacity - impacts both fill and stroke, like svg
         optional<float> opacity = node.get_opt_attr<float>("opacity");
         if (opacity) sym.set_opacity(*opacity);
 
+        optional<float> fill_opacity = node.get_opt_attr<float>("fill-opacity");
+        if (fill_opacity) sym.set_fill_opacity(*fill_opacity);
+
         optional<std::string> image_transform_wkt = node.get_opt_attr<std::string>("transform");
         if (image_transform_wkt)
         {
@@ -1065,7 +1098,7 @@ void map_parser::parse_markers_symbolizer(rule & rule, xml_node const& node)
             sym.set_stroke(strk);
         }
 
-        marker_placement_e placement = node.get_attr<marker_placement_e>("placement", MARKER_POINT_PLACEMENT);
+        marker_placement_e placement = node.get_attr<marker_placement_e>("placement",sym.get_marker_placement());
         sym.set_marker_placement(placement);
         parse_symbolizer_base(sym, node);
         rule.append(sym);

src/map.cpp

@@ -352,7 +352,7 @@ void Map::set_background_image(std::string const& image_filename)
 
 void Map::set_maximum_extent(box2d<double> const& box)
 {
-    maximum_extent_ = box;
+    maximum_extent_.reset(box);
 }
 
 boost::optional<box2d<double> > const& Map::maximum_extent() const
@@ -360,9 +360,9 @@ boost::optional<box2d<double> > const& Map::maximum_extent() const
     return maximum_extent_;
 }
 
-boost::optional<box2d<double> > & Map::maximum_extent()
+void Map::reset_maximum_extent()
 {
-    return maximum_extent_;
+    maximum_extent_.reset();
 }
 
 std::string const&  Map::base_path() const

src/marker_cache.cpp

@@ -144,7 +144,7 @@ boost::optional<marker_ptr> marker_cache::find(std::string const& uri,
             }
             std::string known_svg_string = mark_itr->second;
             using namespace mapnik::svg;
-            path_ptr marker_path(boost::make_shared<svg_storage_type>());
+            svg_path_ptr marker_path(boost::make_shared<svg_storage_type>());
             vertex_stl_adapter<svg_path_storage> stl_storage(marker_path->source());
             svg_path_adapter svg_path(stl_storage);
             svg_converter_type svg(svg_path, marker_path->attributes());
@@ -173,7 +173,7 @@ boost::optional<marker_ptr> marker_cache::find(std::string const& uri,
             if (is_svg(uri))
             {
                 using namespace mapnik::svg;
-                path_ptr marker_path(boost::make_shared<svg_storage_type>());
+                svg_path_ptr marker_path(boost::make_shared<svg_storage_type>());
                 vertex_stl_adapter<svg_path_storage> stl_storage(marker_path->source());
                 svg_path_adapter svg_path(stl_storage);
                 svg_converter_type svg(svg_path, marker_path->attributes());

src/markers_placement.cpp

@@ -1,253 +0,0 @@
-// mapnik
-#include <mapnik/markers_placement.hpp>
-#include <mapnik/geometry.hpp>
-#include <mapnik/ctrans.hpp>
-#include <mapnik/label_collision_detector.hpp>
-#include <mapnik/global.hpp> //round
-// agg
-#include "agg_basics.h"
-#include "agg_conv_clip_polyline.h"
-#include "agg_trans_affine.h"
-#include "agg_conv_transform.h"
-#include "agg_conv_smooth_poly1.h"
-// stl
-#include <cmath>
-
-namespace mapnik
-{
-template <typename Locator,  typename Detector>
-markers_placement<Locator, Detector>::markers_placement(
-    Locator &locator, box2d<double> const& size, agg::trans_affine const& tr, Detector &detector, double spacing, double max_error, bool allow_overlap)
-    : locator_(locator), size_(size), tr_(tr), detector_(detector), max_error_(max_error), allow_overlap_(allow_overlap)
-{
-    marker_width_ = (size_ * tr_).width();
-    if (spacing >= 0)
-    {
-        spacing_ = spacing;
-    } else if (spacing < 0)
-    {
-        spacing_ = find_optimal_spacing(-spacing);
-    }
-    rewind();
-}
-
-template <typename Locator, typename Detector>
-double markers_placement<Locator, Detector>::find_optimal_spacing(double s)
-{
-    rewind();
-    //Calculate total path length
-    unsigned cmd = agg::path_cmd_move_to;
-    double length = 0;
-    while (!agg::is_stop(cmd))
-    {
-        double dx = next_x - last_x;
-        double dy = next_y - last_y;
-        length += std::sqrt(dx * dx + dy * dy);
-        last_x = next_x;
-        last_y = next_y;
-        while (agg::is_move_to(cmd = locator_.vertex(&next_x, &next_y)))
-        {
-            //Skip over "move" commands
-            last_x = next_x;
-            last_y = next_y;
-        }
-    }
-    unsigned points = round(length / s);
-    if (points == 0) return 0.0; //Path to short
-    return length / points;
-}
-
-
-template <typename Locator, typename Detector>
-void markers_placement<Locator, Detector>::rewind()
-{
-    locator_.rewind(0);
-    //Get first point
-    done_ = agg::is_stop(locator_.vertex(&next_x, &next_y)) || spacing_ < marker_width_;
-    last_x = next_x;
-    last_y = next_y; // Force request of new segment
-    error_ = 0;
-    marker_nr_ = 0;
-}
-
-template <typename Locator, typename Detector>
-bool markers_placement<Locator, Detector>::get_point(
-    double & x, double & y, double & angle,  bool add_to_detector)
-{
-    if (done_) return false;
-
-    unsigned cmd;
-
-    /* This functions starts at the position of the previous marker,
-       walks along the path, counting how far it has to go in spacing_left.
-       If one marker can't be placed at the position it should go to it is
-       moved a bit. The error is compensated for in the next call to this
-       function.
-
-       error > 0: Marker too near to the end of the path.
-       error = 0: Perfect position.
-       error < 0: Marker too near to the beginning of the path.
-    */
-
-    if (marker_nr_++ == 0)
-    {
-        //First marker
-        spacing_left_ = spacing_ / 2;
-    } else
-    {
-        spacing_left_ = spacing_;
-    }
-
-    spacing_left_ -= error_;
-    error_ = 0;
-
-    //Loop exits when a position is found or when no more segments are available
-    while (true)
-    {
-        //Do not place markers too close to the beginning of a segment
-        if (spacing_left_ < marker_width_/2)
-        {
-            set_spacing_left(marker_width_/2); //Only moves forward
-        }
-        //Error for this marker is too large. Skip to the next position.
-        if (abs(error_) > max_error_ * spacing_)
-        {
-            if (error_ > spacing_)
-            {
-                error_ = 0; //Avoid moving backwards
-
-                MAPNIK_LOG_WARN(markers_placement) << "Extremely large error in markers_placement. Please file a bug report.";
-            }
-            spacing_left_ += spacing_ - error_;
-            error_ = 0;
-        }
-        double dx = next_x - last_x;
-        double dy = next_y - last_y;
-        double segment_length = std::sqrt(dx * dx + dy * dy);
-        if (segment_length <= spacing_left_)
-        {
-            //Segment is to short to place marker. Find next segment
-            spacing_left_ -= segment_length;
-            last_x = next_x;
-            last_y = next_y;
-            while (agg::is_move_to(cmd = locator_.vertex(&next_x, &next_y)))
-            {
-                //Skip over "move" commands
-                last_x = next_x;
-                last_y = next_y;
-            }
-            if (agg::is_stop(cmd))
-            {
-                done_ = true;
-                return false;
-            }
-            continue; //Try again
-        }
-
-        /* At this point we know the following things:
-           - segment_length > spacing_left
-           - error is small enough
-           - at least half a marker fits into this segment
-        */
-
-        //Check if marker really fits in this segment
-        if (segment_length < marker_width_)
-        {
-            //Segment to short => Skip this segment
-            set_spacing_left(segment_length + marker_width_/2); //Only moves forward
-            continue;
-        } else if (segment_length - spacing_left_ < marker_width_/2)
-        {
-            //Segment is long enough, but we are to close to the end
-
-            //Note: This function moves backwards. This could lead to an infinite
-            // loop when another function adds a positive offset. Therefore we
-            // only move backwards when there is no offset
-            if (error_ == 0)
-            {
-                set_spacing_left(segment_length - marker_width_/2, true);
-            } else
-            {
-                //Skip this segment
-                set_spacing_left(segment_length + marker_width_/2); //Only moves forward
-            }
-            continue; //Force checking of max_error constraint
-        }
-        angle = atan2(dy, dx);
-        x = last_x + dx * (spacing_left_ / segment_length);
-        y = last_y + dy * (spacing_left_ / segment_length);
-
-        box2d<double> box = perform_transform(angle, x, y);
-
-        if (!allow_overlap_ && !detector_.has_placement(box))
-        {
-            //10.0 is the approxmiate number of positions tried and choosen arbitrarily
-            set_spacing_left(spacing_left_ + spacing_ * max_error_ / 10.0); //Only moves forward
-            continue;
-        }
-        if (add_to_detector) detector_.insert(box);
-        last_x = x;
-        last_y = y;
-        return true;
-    }
-}
-
-
-template <typename Locator, typename Detector>
-box2d<double> markers_placement<Locator, Detector>::perform_transform(double angle, double dx, double dy)
-{
-    double x1 = size_.minx();
-    double x2 = size_.maxx();
-    double y1 = size_.miny();
-    double y2 = size_.maxy();
-
-    agg::trans_affine tr = tr_ * agg::trans_affine_rotation(angle).translate(dx, dy);
-
-    double xA = x1, yA = y1, xB = x2, yB = y1, xC = x2, yC = y2, xD = x1, yD = y2;
-    tr.transform(&xA, &yA);
-    tr.transform(&xB, &yB);
-    tr.transform(&xC, &yC);
-    tr.transform(&xD, &yD);
-
-    box2d<double> result(xA, yA, xC, yC);
-    result.expand_to_include(xB, yB);
-    result.expand_to_include(xD, yD);
-    return result;
-}
-
-template <typename Locator, typename Detector>
-void markers_placement<Locator, Detector>::set_spacing_left(double sl, bool allow_negative)
-{
-    double delta_error = sl - spacing_left_;
-    if (!allow_negative && delta_error < 0)
-    {
-        MAPNIK_LOG_WARN(markers_placement) << "Unexpected negative error in markers_placement. Please file a bug report.";
-
-        return;
-    }
-#ifdef MAPNIK_DEBUG
-    if (delta_error == 0.0)
-    {
-        MAPNIK_LOG_WARN(markers_placement) << "Not moving at all in set_spacing_left()! Please file a bug report.";
-    }
-#endif
-    error_ += delta_error;
-    spacing_left_ = sl;
-}
-
-typedef agg::conv_clip_polyline<geometry_type> clipped_geometry_type;
-typedef coord_transform<CoordTransform,geometry_type> path_type;
-typedef coord_transform<CoordTransform,clipped_geometry_type> clipped_path_type;
-typedef agg::conv_transform<path_type, agg::trans_affine> transformed_path_type;
-
-template class markers_placement<geometry_type, label_collision_detector4>;
-template class markers_placement<path_type, label_collision_detector4>;
-template class markers_placement<clipped_geometry_type, label_collision_detector4>;
-template class markers_placement<transformed_path_type, label_collision_detector4>;
-template class markers_placement<clipped_path_type, label_collision_detector4>;
-template class markers_placement<agg::conv_transform<clipped_path_type,agg::trans_affine>, label_collision_detector4>;
-template class markers_placement<agg::conv_smooth_poly1_curve<clipped_path_type>, label_collision_detector4>;
-template class markers_placement<agg::conv_smooth_poly1_curve<geometry_type>, label_collision_detector4>;
-template class markers_placement<agg::conv_smooth_poly1_curve<path_type>, label_collision_detector4>;
-template class markers_placement<agg::conv_smooth_poly1_curve<clipped_geometry_type>, label_collision_detector4>;
-} //ns mapnik

src/markers_symbolizer.cpp

@@ -30,6 +30,7 @@ namespace mapnik {
 
 static const char * marker_placement_strings[] = {
     "point",
+    "interior",
     "line",
     ""
 };
@@ -45,10 +46,7 @@ markers_symbolizer::markers_symbolizer()
       allow_overlap_(false),
       spacing_(100.0),
       max_error_(0.2),
-      marker_p_(MARKER_POINT_PLACEMENT) {
+      marker_p_(MARKER_POINT_PLACEMENT) { }
-          // override the default for clipping in symbolizer base
-          this->set_clip(false);
-      }
 
 markers_symbolizer::markers_symbolizer(path_expression_ptr const& filename)
     : symbolizer_with_image(filename),
@@ -59,10 +57,7 @@ markers_symbolizer::markers_symbolizer(path_expression_ptr const& filename)
       allow_overlap_(false),
       spacing_(100.0),
       max_error_(0.2),
-      marker_p_(MARKER_POINT_PLACEMENT) {
+      marker_p_(MARKER_POINT_PLACEMENT) { }
-          // override the default for clipping in symbolizer base
-          this->set_clip(false);
-      }
 
 markers_symbolizer::markers_symbolizer(markers_symbolizer const& rhs)
     : symbolizer_with_image(rhs),
@@ -74,6 +69,8 @@ markers_symbolizer::markers_symbolizer(markers_symbolizer const& rhs)
       spacing_(rhs.spacing_),
       max_error_(rhs.max_error_),
       fill_(rhs.fill_),
+      fill_opacity_(rhs.fill_opacity_),
+      opacity_(rhs.opacity_),
       stroke_(rhs.stroke_),
       marker_p_(rhs.marker_p_) {}
 
@@ -117,6 +114,16 @@ double markers_symbolizer::get_max_error() const
     return max_error_;
 }
 
+void markers_symbolizer::set_opacity(float opacity)
+{
+    opacity_ = opacity;
+}
+
+boost::optional<float> markers_symbolizer::get_opacity() const
+{
+    return opacity_;
+}
+
 void markers_symbolizer::set_fill(color const& fill)
 {
     fill_ = fill;
@@ -127,6 +134,16 @@ boost::optional<color> markers_symbolizer::get_fill() const
     return fill_;
 }
 
+void markers_symbolizer::set_fill_opacity(float opacity)
+{
+    fill_opacity_ = opacity;
+}
+
+boost::optional<float> markers_symbolizer::get_fill_opacity() const
+{
+    return fill_opacity_;
+}
+
 void markers_symbolizer::set_width(expression_ptr const& width)
 {
     width_ = width;

src/save_map.cpp

@@ -78,6 +78,11 @@ public:
         {
             set_attr( sym_node, "placement", sym.get_point_placement() );
         }
+        if (sym.get_image_transform())
+        {
+            std::string tr_str = sym.get_image_transform_string();
+            set_attr( sym_node, "transform", tr_str );
+        }
         serialize_symbolizer_base(sym_node, sym);
     }
 
@@ -218,6 +223,11 @@ public:
         {
             set_attr(sym_node, "shield-dy", displacement.y);
         }
+        if (sym.get_image_transform())
+        {
+            std::string tr_str = sym.get_image_transform_string();
+            set_attr( sym_node, "transform", tr_str );
+        }
         serialize_symbolizer_base(sym_node, sym);
     }
 
@@ -249,7 +259,6 @@ public:
         {
             set_attr( sym_node, "height", mapnik::to_expression_string(*sym.height()) );
         }
-
         serialize_symbolizer_base(sym_node, sym);
     }
 
@@ -283,6 +292,10 @@ public:
         {
             set_attr( sym_node, "fill", sym.get_fill() );
         }
+        if (sym.get_fill_opacity() != dfl.get_fill_opacity() || explicit_defaults_)
+        {
+            set_attr( sym_node, "fill-opacity", sym.get_fill_opacity() );
+        }
         if (sym.get_opacity() != dfl.get_opacity() || explicit_defaults_)
         {
             set_attr( sym_node, "opacity", sym.get_opacity() );
@@ -454,7 +467,7 @@ private:
         }
         if ( strk.dash_offset() != dfl.dash_offset() || explicit_defaults_ )
         {
-            set_attr( node, "stroke-dash-offset", strk.dash_offset());
+            set_attr( node, "stroke-dashoffset", strk.dash_offset());
         }
         if ( ! strk.get_dash_array().empty() )
         {
@@ -728,6 +741,22 @@ void serialize_layer( ptree & map_node, const layer & layer, bool explicit_defau
         set_attr( layer_node, "group-by", layer.group_by() );
     }
 
+    int buffer_size = layer.buffer_size();
+    if ( buffer_size || explicit_defaults)
+    {
+        set_attr( layer_node, "buffer-size", buffer_size );
+    }
+
+    optional<box2d<double> > const& maximum_extent = layer.maximum_extent();
+    if ( maximum_extent)
+    {
+        std::ostringstream s;
+        s << std::setprecision(16)
+          << maximum_extent->minx() << "," << maximum_extent->miny() << ","
+          << maximum_extent->maxx() << "," << maximum_extent->maxy();
+        set_attr( layer_node, "maximum-extent", s.str() );
+    }
+
     std::vector<std::string> const& style_names = layer.styles();
     for (unsigned i = 0; i < style_names.size(); ++i)
     {
@@ -775,7 +804,7 @@ void serialize_map(ptree & pt, Map const & map, bool explicit_defaults)
         set_attr( map_node, "background-image", *image_filename );
     }
 
-    unsigned buffer_size = map.buffer_size();
+    int buffer_size = map.buffer_size();
     if ( buffer_size || explicit_defaults)
     {
         set_attr( map_node, "buffer-size", buffer_size );

src/symbolizer_helpers.cpp

@@ -221,7 +221,11 @@ void text_symbolizer_helper<FaceManagerT, DetectorT>::initialize_points()
         }
         else
         {
-            if (how_placed == POINT_PLACEMENT)
+            if (geom.type() == LineString)
+            {
+                label::middle_point(geom, label_x,label_y);
+            }
+            else if (how_placed == POINT_PLACEMENT)
             {
                 label::centroid(geom, label_x, label_y);
             }

tests/data/good_maps/marker_ellipse_transform.xml

@@ -0,0 +1,66 @@
+<Map srs="+init=epsg:4326" background-color="rgba(255,255,255,.5)">
+
+    <Style name="ellipse">
+        <Rule>
+            <MarkersSymbolizer
+              width="240"
+              height="240"
+              fill="steelblue"
+              fill-opacity=".7"
+              stroke="yellow"
+              stroke-width="16"
+              stroke-opacity=".3"
+            />
+            <MarkersSymbolizer
+              width="100"
+              opacity=".5"
+              fill="darkorange"
+              comp-op="multiply"
+              transform="skewX(50)"
+              allow-overlap="true"
+            />
+            <MarkersSymbolizer
+              width="100"
+              opacity=".5"
+              fill="darkred"
+              comp-op="color-burn"
+              transform="skewX(-50)"
+              allow-overlap="true"
+            />
+        </Rule>
+    </Style>
+
+    <Layer name="layer" srs="+init=epsg:4326">
+        <StyleName>ellipse</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+x,y
+2.5,2.5
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- points to frame data view -->
+
+    <Style name="frame">
+        <Rule>
+            <PointSymbolizer />
+        </Rule>
+    </Style>
+
+    <Layer name="frame" srs="+init=epsg:4326">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+x,y
+0,0
+5,0
+0,5
+5,5
+            </Parameter>
+        </Datasource>
+    </Layer>
+    
+</Map>

tests/data/good_maps/marker_ellipse_transform2.xml

@@ -0,0 +1,66 @@
+<Map srs="+init=epsg:4326" background-color="rgba(255,255,255,.5)">
+
+    <Style name="ellipse">
+        <Rule>
+            <MarkersSymbolizer
+              width="240"
+              height="240"
+              fill="steelblue"
+              fill-opacity=".7"
+              stroke="yellow"
+              stroke-width="16"
+              stroke-opacity=".3"
+            />
+            <MarkersSymbolizer
+              width="100"
+              opacity=".5"
+              fill="darkorange"
+              comp-op="grain-extract"
+              transform="skewX(50)"
+              allow-overlap="true"
+            />
+            <MarkersSymbolizer
+              width="100"
+              opacity=".5"
+              fill="darkred"
+              comp-op="color-burn"
+              transform="skewX(-50)"
+              allow-overlap="true"
+            />
+        </Rule>
+    </Style>
+
+    <Layer name="layer" srs="+init=epsg:4326">
+        <StyleName>ellipse</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+x,y
+2.5,2.5
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- points to frame data view -->
+
+    <Style name="frame">
+        <Rule>
+            <PointSymbolizer />
+        </Rule>
+    </Style>
+
+    <Layer name="frame" srs="+init=epsg:4326">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+x,y
+0,0
+5,0
+0,5
+5,5
+            </Parameter>
+        </Datasource>
+    </Layer>
+    
+</Map>

tests/data/good_maps/markers_symbolizer_lines.xml

@@ -3,7 +3,14 @@
     <Style name="1">
         <Rule>
             <LineSymbolizer stroke-width=".2" stroke="grey"/>
-            <MarkersSymbolizer stroke="green" stroke-width="1.3" fill="yellow"/>
+            <MarkersSymbolizer
+                file="shape://arrow"
+                transform="scale(.8,.5)"
+                stroke="green"
+                stroke-width="1.3"
+                fill="yellow"
+                placement="line"
+            />
         </Rule>
     </Style>
 

tests/data/good_maps/markers_symbolizer_lines_file.xml

@@ -2,8 +2,15 @@
 <Map background-color="white" srs="+init=epsg:4326" minimum-version="0.7.2">
     <Style name="1">
         <Rule>
-            <LineSymbolizer stroke-width=".2" stroke="grey"/>
+            <LineSymbolizer offset="-2" stroke-width="2" stroke="red"/>
-            <MarkersSymbolizer file="../svg/crosshair16x16.svg"/>
+            <LineSymbolizer stroke-width="2" stroke="orange"/>
+            <LineSymbolizer offset="2" stroke-width="2" stroke="yellow"/>
+            <LineSymbolizer offset="4" stroke-width="2" stroke="green"/>
+            <MarkersSymbolizer
+                file="../svg/octocat.svg"
+                transform="scale(.13)"
+                placement="line"
+            />
         </Rule>
     </Style>
 

tests/data/good_maps/text_halo_and_collision.xml

@@ -0,0 +1,52 @@
+<Map srs="+init=epsg:4326" background-color="steelblue">
+<!-- test case for https://github.com/mapnik/mapnik/issues/1354 -->
+
+    <Style name="labels">
+        <Rule>
+            <TextSymbolizer 
+              face-name="DejaVu Sans Book"
+              size="22"
+              halo-radius="10"
+              placement="point"
+              allow-overlap="false">
+                'this text halos should not overlap vertically'
+              </TextSymbolizer>
+        </Rule>
+    </Style>
+
+
+    <Layer name="points" srs="+init=epsg:4326">
+        <StyleName>labels</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+x,y
+2,2
+2,2.3
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- points to frame data view -->
+
+    <Style name="frame">
+        <Rule>
+            <PointSymbolizer />
+        </Rule>
+    </Style>
+
+    <Layer name="frame" srs="+init=epsg:4326">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+x,y
+0,0
+5,0
+0,5
+5,5
+            </Parameter>
+        </Datasource>
+    </Layer>
+    
+</Map>

tests/data/svg/octocat.svg

@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="-0.2 -1 379 334">
+ <path id="puddle" fill="#9CDAF1" d="m296.94 295.43c0 20.533-47.56 37.176-106.22 37.176-58.67 0-106.23-16.643-106.23-37.176s47.558-37.18 106.23-37.18c58.66 0 106.22 16.65 106.22 37.18z"/>
+ <g id="shadow-legs" fill="#7DBBE6">
+  <path d="m161.85 331.22v-26.5c0-3.422-.619-6.284-1.653-8.701 6.853 5.322 7.316 18.695 7.316 18.695v17.004c6.166.481 12.534.773 19.053.861l-.172-16.92c-.944-23.13-20.769-25.961-20.769-25.961-7.245-1.645-7.137 1.991-6.409 4.34-7.108-12.122-26.158-10.556-26.158-10.556-6.611 2.357-.475 6.607-.475 6.607 10.387 3.775 11.33 15.105 11.33 15.105v23.622c5.72.98 11.71 1.79 17.94 2.4z"/>
+  <path d="m245.4 283.48s-19.053-1.566-26.16 10.559c.728-2.35.839-5.989-6.408-4.343 0 0-19.824 2.832-20.768 25.961l-.174 16.946c6.509-.025 12.876-.254 19.054-.671v-17.219s.465-13.373 7.316-18.695c-1.034 2.417-1.653 5.278-1.653 8.701v26.775c6.214-.544 12.211-1.279 17.937-2.188v-24.113s.944-11.33 11.33-15.105c0-.01 6.13-4.26-.48-6.62z"/>
+ </g>
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+   <path id="pupils" d="m154.46 126.38 c0 9.328-5.26 16.887-11.734 16.887s-11.733-7.559-11.733-16.887c0-9.331 5.255-16.894 11.733-16.894 6.47 0 11.73 7.56 11.73 16.89z m94.42 0 c0 9.328-5.26 16.887-11.734 16.887s-11.733-7.559-11.733-16.887c0-9.331 5.255-16.894 11.733-16.894 6.47 0 11.73 7.56 11.73 16.89z"/>
+   <circle id="nose" cx="188.5" cy="148.56" r="4.401"/>
+   <path id="mouth" d="m178.23 159.69c-.26-.738.128-1.545.861-1.805.737-.26 1.546.128 1.805.861 1.134 3.198 4.167 5.346 7.551 5.346s6.417-2.147 7.551-5.346c.26-.738 1.067-1.121 1.805-.861s1.121 1.067.862 1.805c-1.529 4.324-5.639 7.229-10.218 7.229s-8.68-2.89-10.21-7.22z"/>
+ </g>
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+</svg>

tests/python_tests/markers_complex_rendering_test.py

@@ -0,0 +1,39 @@
+#coding=utf8
+import os
+import mapnik
+from utilities import execution_path
+from nose.tools import *
+
+def setup():
+    # All of the paths used are relative, if we run the tests
+    # from another directory we need to chdir()
+    os.chdir(execution_path('.'))
+
+def test_marker_ellipse_render1():
+    m = mapnik.Map(256,256)
+    mapnik.load_map(m,'../data/good_maps/marker_ellipse_transform.xml')
+    m.zoom_all()
+    im = mapnik.Image(m.width,m.height)
+    mapnik.render(m,im)
+    actual = '/tmp/mapnik-marker-ellipse-render1.png'
+    expected = 'images/support/mapnik-marker-ellipse-render1.png'
+    im.save(actual)
+    expected_im = mapnik.Image.open(expected)
+    eq_(im.tostring(),expected_im.tostring(), 'failed comparing actual (%s) and expected (%s)' % (actual,'tests/python_tests/'+ expected))
+
+#def test_marker_ellipse_render2():
+#    # currently crashes https://github.com/mapnik/mapnik/issues/1365
+#    m = mapnik.Map(256,256)
+#    mapnik.load_map(m,'../data/good_maps/marker_ellipse_transform2.xml')
+#    m.zoom_all()
+#    im = mapnik.Image(m.width,m.height)
+#    mapnik.render(m,im)
+#    actual = '/tmp/mapnik-marker-ellipse-render2.png'
+#    expected = 'images/support/mapnik-marker-ellipse-render2.png'
+#    im.save(actual)
+#    expected_im = mapnik.Image.open(expected)
+#    eq_(im.tostring(),expected_im.tostring(), 'failed comparing actual (%s) and expected (%s)' % (actual,'tests/python_tests/'+ expected))
+
+if __name__ == "__main__":
+    setup()
+    [eval(run)() for run in dir() if 'test_' in run]

tests/python_tests/object_test.py

@@ -21,6 +21,15 @@ def test_line_symbolizer_init():
     s = mapnik.LineSymbolizer()
     eq_(s.rasterizer, mapnik.line_rasterizer.FULL)
 
+def test_line_symbolizer_stroke_reference():
+    l = mapnik.LineSymbolizer(mapnik.Color('green'),0.1)
+    l.stroke.add_dash(.1,.1)
+    l.stroke.add_dash(.1,.1)
+    eq_(l.stroke.get_dashes(), [(.1,.1),(.1,.1)])
+    eq_(l.stroke.color,mapnik.Color('green'))
+    eq_(l.stroke.opacity,1.0)
+    assert_almost_equal(l.stroke.width,0.1)
+
 # ShieldSymbolizer initialization
 def test_shieldsymbolizer_init():
     s = mapnik.ShieldSymbolizer(mapnik.Expression('[Field Name]'), 'DejaVu Sans Bold', 6, mapnik.Color('#000000'), mapnik.PathExpression('../data/images/dummy.png'))
@@ -126,7 +135,8 @@ def test_pointsymbolizer_init():
 def test_markersymbolizer_init():
     p = mapnik.MarkersSymbolizer() 
     eq_(p.allow_overlap, False)
-    eq_(p.opacity,1)
+    eq_(p.opacity,None)
+    eq_(p.fill_opacity,None)
     eq_(p.filename,'shape://ellipse')
     eq_(p.placement,mapnik.marker_placement.POINT_PLACEMENT)
     eq_(p.fill,None)
@@ -154,9 +164,11 @@ def test_markersymbolizer_init():
     p.fill = mapnik.Color('white')
     p.allow_overlap = True
     p.opacity = 0.5
+    p.fill_opacity = .01
 
     eq_(p.allow_overlap, True)
     eq_(p.opacity, 0.5)
+    eq_(p.fill_opacity, 0.5)
 
 
 # PointSymbolizer missing image file

tests/python_tests/render_grid_test.py

@@ -20,13 +20,13 @@ def setup():
 grid_correct_old = {"keys": ["", "North West", "North East", "South West", "South East"], "data": {"South East": {"Name": "South East"}, "North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         !!!                                 ###                ", "        !!!!!                               #####               ", "        !!!!!                               #####               ", "         !!!                                 ###                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "        $$$$                                %%%%                ", "        $$$$$                               %%%%%               ", "        $$$$$                               %%%%%               ", "         $$$                                 %%%                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "]}
 
 # now using svg rendering
-grid_correct_old2 = {"data": {"North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South East": {"Name": "South East"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         !!!                                 ###                ", "         !!!                                 ###                ", "         !!!                                 ###                ", "         !!!                                 ###                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         $$$                                 %%%                ", "         $$$                                 %%%                ", "         $$$                                 %%%                ", "          $                                   %                 ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "North West", "North East", "South West", "South East"]}
+grid_correct_old2 = {"data": {"North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South East": {"Name": "South East"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         !!!                                 ###                ", "         !!!                                 ###                ", "         !!!                                 ###                ", "         !!!                                 ###                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         $$$                                 %%%                ", "         $$$                                 %%%                ", "         $$$                                 %%%                ", "         $$$                                 %%%                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "North West", "North East", "South West", "South East"]}
 
 # previous rendering using agg ellipse directly
-grid_correct_new = {"keys": ["", "North West", "North East", "South West", "South East"], "data": {"South East": {"Name": "South East"}, "North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          !!                                  ##                ", "         !!!                                 ###                ", "          !!                                  ##                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         $$$                                  %%                ", "         $$$                                 %%%                ", "          $$                                  %%                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "]}
+grid_correct_new = {"data": {"North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South East": {"Name": "South East"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          !!                                  ##                ", "         !!!                                 ###                ", "          !!                                  ##                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          $$                                  %%                ", "         $$$                                  %%                ", "          $$                                  %%                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "North West", "North East", "South West", "South East"]}
 
 # newer rendering using svg
-grid_correct_new2 = {"data": {"North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South East": {"Name": "South East"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          !!                                  ##                ", "         !!!                                  ##                ", "          !!                                  ##                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          $$                                  %%                ", "          $$                                  %%                ", "          $                                   %                 ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "North West", "North East", "South West", "South East"]}
+grid_correct_new2 = {"data": {"North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South East": {"Name": "South East"}, "South West": {"Name": "South West"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          !!                                  ##                ", "         !!!                                 ###                ", "          !!                                  ##                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          $$                                  %%                ", "         $$$                                  %%                ", "          $$                                  %%                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "North West", "North East", "South West", "South East"]}
 
 def resolve(grid,row,col):
     """ Resolve the attributes for a given pixel in a grid.
@@ -108,7 +108,7 @@ def show_grids(name,g1,g2):
     val += '\n\t%s\n\t%s' % (g1_file,g2_file)
     return val
 
-def test_render_grid():
+def test_render_grid_old():
     """ test old method """
     width,height = 256,256
     m = create_grid_map(width,height)
@@ -117,7 +117,7 @@ def test_render_grid():
     lr_lonlat = mapnik.Coord(143.40,-38.80)
     m.zoom_to_box(mapnik.Box2d(ul_lonlat,lr_lonlat))
     grid = mapnik.render_grid(m,0,key='Name',resolution=4,fields=['Name'])
-    eq_(grid,grid_correct_old2,show_grids('old',grid,grid_correct_old2))
+    eq_(grid,grid_correct_old2,show_grids('old-markers',grid,grid_correct_old2))
     eq_(resolve(grid,0,0),None)
 
     # check every pixel of the nw symbol
@@ -128,7 +128,7 @@ def test_render_grid():
     eq_(resolve(grid,23,10),expected)
     eq_(resolve(grid,23,11),expected)
 
-def test_render_grid2():
+def test_render_grid_new():
     """ test old against new"""
     width,height = 256,256
     m = create_grid_map(width,height)
@@ -140,7 +140,7 @@ def test_render_grid2():
     grid = mapnik.Grid(m.width,m.height,key='Name')
     mapnik.render_layer(m,grid,layer=0,fields=['Name'])
     utf1 = grid.encode('utf',resolution=4)
-    eq_(utf1,grid_correct_new2,show_grids('new',utf1,grid_correct_new2))
+    eq_(utf1,grid_correct_new2,show_grids('new-markers',utf1,grid_correct_new2))
 
     # check a full view is the same as a full image
     grid_view = grid.view(0,0,width,height)
@@ -164,7 +164,7 @@ def test_render_grid2():
 
 grid_feat_id = {'keys': ['', '3', '4', '2', '1'], 'data': {'1': {'Name': 'South East'}, '3': {'Name': u'North West'}, '2': {'Name': 'South West'}, '4': {'Name': 'North East'}}, 'grid': ['                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '          !!                                  ##                ', '         !!!                                 ###                ', '          !!                                  ##                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '         $$$                                  %%                ', '         $$$                                 %%%                ', '          $$                                  %%                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ', '                                                                ']}
 
-grid_feat_id2 = {"data": {"1": {"Name": "South East"}, "2": {"Name": "South West"}, "3": {"Name": "North West"}, "4": {"Name": "North East"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          !!                                  ##                ", "         !!!                                  ##                ", "          !!                                  ##                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          $$                                  %%                ", "          $$                                  %%                ", "          $                                   %                 ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "3", "4", "2", "1"]}
+grid_feat_id2 = {"data": {"1": {"Name": "South East"}, "2": {"Name": "South West"}, "3": {"Name": "North West"}, "4": {"Name": "North East"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          !!                                  ##                ", "         !!!                                 ###                ", "          !!                                  ##                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "          $$                                  %%                ", "         $$$                                  %%                ", "          $$                                  %%                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "3", "4", "2", "1"]}
 
 def test_render_grid3():
     """ test using feature id"""
@@ -177,7 +177,7 @@ def test_render_grid3():
     grid = mapnik.Grid(m.width,m.height,key='__id__')
     mapnik.render_layer(m,grid,layer=0,fields=['__id__','Name'])
     utf1 = grid.encode('utf',resolution=4)
-    eq_(utf1,grid_feat_id2,show_grids('id',utf1,grid_feat_id2))
+    eq_(utf1,grid_feat_id2,show_grids('id-markers',utf1,grid_feat_id2))
     # check a full view is the same as a full image
     grid_view = grid.view(0,0,width,height)
     # for kicks check at full res too
@@ -282,7 +282,7 @@ def test_line_rendering():
     eq_(utf1,line_expected,show_grids('line',utf1,line_expected))
     #open('test.json','w').write(json.dumps(grid.encode()))
 
-point_expected = {"keys": ["", "3", "4", "2", "1"], "data": {"1": {"Name": "South East"}, "3": {"Name": "North West"}, "2": {"Name": "South West"}, "4": {"Name": "North East"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "           !!!!                                ####             ", "           !!!!                                ####             ", "           !!!!                                ####             ", "           !!!!                                ####             ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "           $$$$                                %%%%             ", "           $$$$                                %%%%             ", "           $$$$                                %%%%             ", "           $$$$                                %%%%             ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "]}
+point_expected = {"data": {"1": {"Name": "South East"}, "2": {"Name": "South West"}, "3": {"Name": "North West"}, "4": {"Name": "North East"}}, "grid": ["                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         !!!!                                ####               ", "         !!!!                                ####               ", "         !!!!                                ####               ", "         !!!!                                ####               ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "         $$$$                                %%%%               ", "         $$$$                                %%%%               ", "         $$$$                                %%%%               ", "         $$$$                                %%%%               ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                ", "                                                                "], "keys": ["", "3", "4", "2", "1"]}
 
 def test_point_symbolizer_grid():
     width,height = 256,256

utils/svg2png/svg2png.cpp

@@ -155,8 +155,9 @@ int main (int argc,char** argv)
             {
                 std::clog << "found width of '" << w << "' and height of '" << h << "'\n";
             }
-            mapnik::image_32 im(w,h);
+            // 10 pixel buffer to avoid edge clipping of 100% svg's
-            agg::rendering_buffer buf(im.raw_data(), w, h, w * 4);
+            mapnik::image_32 im(w+10,h+10);
+            agg::rendering_buffer buf(im.raw_data(), im.width(), im.height(), im.width() * 4);
             pixfmt pixf(buf);
             renderer_base renb(pixf);
 
@@ -165,7 +166,7 @@ int main (int argc,char** argv)
             // center the svg marker on '0,0'
             agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
             // render the marker at the center of the marker box
-            mtx.translate(0.5 * w, 0.5 * h);
+            mtx.translate(0.5 * im.width(), 0.5 * im.height());
 
             mapnik::svg::vertex_stl_adapter<mapnik::svg::svg_path_storage> stl_storage((*marker.get_vector_data())->source());
             mapnik::svg::svg_path_adapter svg_path(stl_storage);