+ split agg_renderer impl into different
translation units + add SVG support in point_symbolizer
This commit is contained in:
Artem Pavlenko
parent
12b74bc1cc
commit
9beb12b56b
2 changed files with 4 additions and 285 deletions
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@ -114,9 +114,12 @@ source = Split(
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)
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if True :
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if True : # agg backend
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source += Split(
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"""
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agg/process_point_symbolizer.cpp
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agg/process_shield_symbolizer.cpp
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agg/process_markers_symbolizer.cpp
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agg_svg_path_renderer.cpp
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svg_parser.cpp
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svg_path_parser.cpp
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@ -25,11 +25,8 @@
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/image_util.hpp>
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#include <mapnik/image_cache.hpp>
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#include <mapnik/svg/marker_cache.hpp>
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#include <mapnik/unicode.hpp>
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#include <mapnik/placement_finder.hpp>
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#include <mapnik/markers_placement.hpp>
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#include <mapnik/arrow.hpp>
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#include <mapnik/config_error.hpp>
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#include <mapnik/font_set.hpp>
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#include <mapnik/path_expression_grammar.hpp>
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@ -425,216 +422,9 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
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agg::render_scanlines(*ras_ptr, sl, ren);
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}
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template <typename T>
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void agg_renderer<T>::process(point_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans)
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{
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double x;
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double y;
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double z=0;
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std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
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boost::optional<mapnik::image_ptr> data;
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if ( filename.empty() )
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{
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// default OGC 4x4 black square
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data = boost::optional<mapnik::image_ptr>(new image_data_32(4,4));
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(*data)->set(0xff000000);
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}
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else
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{
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data = mapnik::image_cache::instance()->find(filename,true);
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}
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if ( data )
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{
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for (unsigned i=0;i<feature.num_geometries();++i)
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{
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geometry2d const& geom = feature.get_geometry(i);
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geom.label_position(&x,&y);
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prj_trans.backward(x,y,z);
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t_.forward(&x,&y);
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int w = (*data)->width();
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int h = (*data)->height();
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int px=int(floor(x - 0.5 * w));
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int py=int(floor(y - 0.5 * h));
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box2d<double> label_ext (floor(x - 0.5 * w),
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floor(y - 0.5 * h),
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ceil (x + 0.5 * w),
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ceil (y + 0.5 * h));
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if (sym.get_allow_overlap() ||
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detector_.has_placement(label_ext))
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{
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pixmap_.set_rectangle_alpha2(*(*data),px,py,sym.get_opacity());
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detector_.insert(label_ext);
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}
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}
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}
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}
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template <typename T>
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void agg_renderer<T>::process(shield_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans)
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{
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typedef coord_transform2<CoordTransform,geometry2d> path_type;
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UnicodeString text;
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if( sym.get_no_text() )
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text = UnicodeString( " " ); // TODO: fix->use 'space' as the text to render
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else
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{
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expression_ptr name_expr = sym.get_name();
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if (!name_expr) return;
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value_type result = boost::apply_visitor(evaluate<Feature,value_type>(feature),*name_expr);
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text = result.to_unicode();
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}
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if ( sym.get_text_convert() == TOUPPER)
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{
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text = text.toUpper();
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}
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else if ( sym.get_text_convert() == TOLOWER)
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{
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text = text.toLower();
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}
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std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
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boost::optional<mapnik::image_ptr> data = mapnik::image_cache::instance()->find(filename,true);
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if (text.length() > 0 && data)
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{
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face_set_ptr faces;
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if (sym.get_fontset().size() > 0)
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{
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faces = font_manager_.get_face_set(sym.get_fontset());
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}
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else
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{
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faces = font_manager_.get_face_set(sym.get_face_name());
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}
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if (faces->size() > 0)
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{
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text_renderer<T> ren(pixmap_, faces);
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ren.set_pixel_size(sym.get_text_size());
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ren.set_fill(sym.get_fill());
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ren.set_halo_fill(sym.get_halo_fill());
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ren.set_halo_radius(sym.get_halo_radius());
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placement_finder<label_collision_detector4> finder(detector_);
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string_info info(text);
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faces->get_string_info(info);
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int w = (*data)->width();
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int h = (*data)->height();
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unsigned num_geom = feature.num_geometries();
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for (unsigned i=0;i<num_geom;++i)
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{
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geometry2d const& geom = feature.get_geometry(i);
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if (geom.num_points() > 0 )
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{
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path_type path(t_,geom,prj_trans);
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label_placement_enum how_placed = sym.get_label_placement();
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if (how_placed == POINT_PLACEMENT || how_placed == VERTEX_PLACEMENT)
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{
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// for every vertex, try and place a shield/text
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geom.rewind(0);
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for( unsigned jj = 0; jj < geom.num_points(); jj++ )
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{
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double label_x;
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double label_y;
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double z=0.0;
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placement text_placement(info, sym, w, h, false);
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text_placement.avoid_edges = sym.get_avoid_edges();
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text_placement.allow_overlap = sym.get_allow_overlap();
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if( how_placed == VERTEX_PLACEMENT )
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geom.vertex(&label_x,&label_y); // by vertex
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else
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geom.label_position(&label_x, &label_y); // by middle of line or by point
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prj_trans.backward(label_x,label_y, z);
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t_.forward(&label_x,&label_y);
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finder.find_point_placement( text_placement,label_x,label_y,0.0,sym.get_vertical_alignment(),sym.get_line_spacing(),
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sym.get_character_spacing(),sym.get_horizontal_alignment(),sym.get_justify_alignment() );
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// check to see if image overlaps anything too, there is only ever 1 placement found for points and verticies
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if( text_placement.placements.size() > 0)
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{
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double x = text_placement.placements[0].starting_x;
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double y = text_placement.placements[0].starting_y;
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int px;
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int py;
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box2d<double> label_ext;
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if( !sym.get_unlock_image() )
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{ // center image at text center position
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// remove displacement from image label
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position pos = sym.get_displacement();
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double lx = x - boost::get<0>(pos);
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double ly = y - boost::get<1>(pos);
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px=int(floor(lx - (0.5 * w))) ;
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py=int(floor(ly - (0.5 * h))) ;
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label_ext.init( floor(lx - 0.5 * w), floor(ly - 0.5 * h), ceil (lx + 0.5 * w), ceil (ly + 0.5 * h) );
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}
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else
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{ // center image at reference location
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px=int(floor(label_x - 0.5 * w));
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py=int(floor(label_y - 0.5 * h));
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label_ext.init( floor(label_x - 0.5 * w), floor(label_y - 0.5 * h), ceil (label_x + 0.5 * w), ceil (label_y + 0.5 * h));
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}
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if ( sym.get_allow_overlap() || detector_.has_placement(label_ext) )
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{
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//pixmap_.set_rectangle_alpha(px,py,*data);
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pixmap_.set_rectangle_alpha2(*(*data),px,py,float(sym.get_opacity()));
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box2d<double> dim = ren.prepare_glyphs(&text_placement.placements[0]);
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ren.render(x,y);
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detector_.insert(label_ext);
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finder.update_detector(text_placement);
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}
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}
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}
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}
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else if (geom.num_points() > 1 && sym.get_label_placement() == LINE_PLACEMENT)
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{
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placement text_placement(info, sym, w, h, true);
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text_placement.avoid_edges = sym.get_avoid_edges();
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finder.find_point_placements<path_type>(text_placement,path);
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for (unsigned int ii = 0; ii < text_placement.placements.size(); ++ ii)
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{
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int w = (*data)->width();
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int h = (*data)->height();
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double x = text_placement.placements[ii].starting_x;
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double y = text_placement.placements[ii].starting_y;
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int px=int(x - (w/2));
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int py=int(y - (h/2));
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pixmap_.set_rectangle_alpha(px,py,*(*data));
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box2d<double> dim = ren.prepare_glyphs(&text_placement.placements[ii]);
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ren.render(x,y);
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}
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finder.update_detector(text_placement);
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}
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}
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}
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}
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}
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}
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template <typename T>
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void agg_renderer<T>::process(line_pattern_symbolizer const& sym,
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@ -812,80 +602,6 @@ void agg_renderer<T>::process(raster_symbolizer const& sym,
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}
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}
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template <typename T>
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void agg_renderer<T>::process(markers_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans)
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{
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typedef coord_transform2<CoordTransform,geometry2d> path_type;
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typedef agg::pixfmt_rgba32 pixfmt;
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typedef agg::renderer_base<pixfmt> renderer_base;
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typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
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bool svg_marker;
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arrow arrow_;
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box2d<double> extent;
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boost::optional<path_ptr> marker;
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ras_ptr->reset();
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ras_ptr->gamma(agg::gamma_linear());
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agg::scanline_u8 sl;
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agg::rendering_buffer buf(pixmap_.raw_data(), width_, height_, width_ * 4);
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pixfmt pixf(buf);
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renderer_base renb(pixf);
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renderer_solid ren(renb);
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color const& fill_ = sym.get_fill();
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unsigned r = fill_.red();
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unsigned g = fill_.green();
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unsigned b = fill_.blue();
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unsigned a = fill_.alpha();
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for (unsigned i=0; i<feature.num_geometries(); ++i)
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{
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geometry2d const& geom = feature.get_geometry(i);
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if (geom.num_points() <= 1) continue;
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svg_marker = false;
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extent = arrow_.extent();
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std::string filename = path_processor_type::evaluate(*sym.get_filename(), feature);
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if (!filename.empty())
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{
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marker = mapnik::marker_cache::instance()->find(filename, true);
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if (marker && *marker)
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{
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svg_marker = true;
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double x1, y1, x2, y2;
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(*marker)->bounding_rect(&x1, &y1, &x2, &y2);
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extent.init(x1, y1, x2, y2);
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}
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}
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path_type path(t_,geom,prj_trans);
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markers_placement<path_type, label_collision_detector4> placement(path, extent, detector_, sym.get_spacing(), sym.get_max_error(), sym.get_allow_overlap());
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double x, y, angle;
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while (placement.get_point(&x, &y, &angle))
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{
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agg::trans_affine matrix = agg::trans_affine_rotation(angle) * agg::trans_affine_translation(x, y);
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if (svg_marker)
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{
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(*marker)->render(*ras_ptr, sl, ren, matrix, renb.clip_box(), 1.0);
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}
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else
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{
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agg::conv_transform<arrow, agg::trans_affine> trans(arrow_, matrix);
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ras_ptr->add_path(trans);
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ren.color(agg::rgba8(r, g, b, a));
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agg::render_scanlines(*ras_ptr, sl, ren);
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}
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}
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}
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}
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template <typename T>
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void agg_renderer<T>::process(text_symbolizer const& sym,
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