+ AGG: refactor process_markers_symbolizer to use vertex_converters
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artemp
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7b10400be9
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1 changed files with 115 additions and 92 deletions
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@ -23,9 +23,11 @@
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// mapnik
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#include <mapnik/debug.hpp>
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#include <mapnik/graphics.hpp>
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#include <mapnik/geom_util.hpp>
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/agg_rasterizer.hpp>
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#include <mapnik/expression_evaluator.hpp>
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#include <mapnik/vertex_converters.hpp>
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#include <mapnik/marker.hpp>
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#include <mapnik/marker_cache.hpp>
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#include <mapnik/marker_helpers.hpp>
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@ -49,6 +51,97 @@
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namespace mapnik {
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template <typename BufferType, typename SvgRenderer, typename Rasterizer, typename Detector>
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struct markers_rasterizer_dispatch
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{
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typedef agg::rgba8 color_type;
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typedef agg::order_rgba order_type;
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typedef agg::pixel32_type pixel_type;
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typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
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typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
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typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
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typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
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markers_rasterizer_dispatch(BufferType & image_buffer,
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SvgRenderer & svg_renderer,
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Rasterizer & ras,
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box2d<double> const& bbox,
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agg::trans_affine const& marker_trans,
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markers_symbolizer const& sym,
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Detector & detector,
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double scale_factor)
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: buf_(image_buffer.raw_data(), image_buffer.width(), image_buffer.height(), image_buffer.width() * 4),
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pixf_(buf_),
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renb_(pixf_),
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svg_renderer_(svg_renderer),
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ras_(ras),
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bbox_(bbox),
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marker_trans_(marker_trans),
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sym_(sym),
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detector_(detector),
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scale_factor_(scale_factor)
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{
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pixf_.comp_op(static_cast<agg::comp_op_e>(sym_.comp_op()));
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}
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template <typename T>
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void add_path(T & path)
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{
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marker_placement_e placement_method = sym_.get_marker_placement();
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// std::cout << "add_path called -> " << placement_method << std::endl;
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// std::cout << typeid(path).name() << std::endl;
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if (placement_method == MARKER_POINT_PLACEMENT)
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{
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double x,y;
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path.rewind(0);
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label_interior_position(path, x, y);
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// std::cout << "pos -> " << x << "," << y << std::endl;
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agg::trans_affine matrix = marker_trans_;
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matrix.translate(x,y);
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box2d<double> transformed_bbox = bbox_ * matrix;
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if (sym_.get_allow_overlap() ||
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detector_.has_placement(transformed_bbox))
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{
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svg_renderer_.render(ras_, sl_, renb_, matrix, sym_.get_opacity(), bbox_);
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if (!sym_.get_ignore_placement())
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detector_.insert(transformed_bbox);
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}
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}
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else
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{
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markers_placement<T, label_collision_detector4> placement(path, bbox_, marker_trans_, detector_,
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sym_.get_spacing() * scale_factor_,
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sym_.get_max_error(),
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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 = marker_trans_;
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matrix.rotate(angle);
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matrix.translate(x, y);
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svg_renderer_.render(ras_, sl_, renb_, matrix, sym_.get_opacity(), bbox_);
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}
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}
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}
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private:
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agg::scanline_u8 sl_;
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agg::rendering_buffer buf_;
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pixfmt_comp_type pixf_;
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renderer_base renb_;
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SvgRenderer & svg_renderer_;
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Rasterizer & ras_;
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box2d<double> const& bbox_;
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agg::trans_affine const& marker_trans_;
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markers_symbolizer const& sym_;
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Detector & detector_;
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double scale_factor_;
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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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mapnik::feature_impl & feature,
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@ -77,12 +170,6 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
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ras_ptr->reset();
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ras_ptr->gamma(agg::gamma_power());
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agg::scanline_u8 sl;
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agg::rendering_buffer buf(current_buffer_->raw_data(), width_, height_, width_ * 4);
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pixfmt_comp_type pixf(buf);
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pixf.comp_op(static_cast<agg::comp_op_e>(sym.comp_op()));
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renderer_base renb(pixf);
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renderer_type ren(renb);
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agg::trans_affine geom_tr;
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evaluate_transform(geom_tr, feature, sym.get_transform());
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@ -105,100 +192,36 @@ void agg_renderer<T>::process(markers_symbolizer const& sym,
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agg::pod_bvector<path_attributes> attributes;
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bool result = push_explicit_style( (*marker)->attributes(), attributes, sym);
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svg_renderer<svg_path_adapter,
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agg::pod_bvector<path_attributes>,
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renderer_type,
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agg::pixfmt_rgba32 > svg_renderer(svg_path, result ? attributes : (*marker)->attributes());
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typedef label_collision_detector4 detector_type;
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typedef svg_renderer<svg_path_adapter,
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agg::pod_bvector<path_attributes>,
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renderer_type,
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agg::pixfmt_rgba32 > svg_renderer_type;
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typedef markers_rasterizer_dispatch<buffer_type, svg_renderer_type, rasterizer, detector_type> markers_rasterizer_dispatch_type;
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typedef boost::mpl::vector<clip_line_tag,transform_tag,smooth_tag> conv_types;
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marker_placement_e placement_method = sym.get_marker_placement();
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svg_renderer_type svg_renderer(svg_path, result ? attributes : (*marker)->attributes());
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BOOST_FOREACH( geometry_type & geom, feature.paths())
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markers_rasterizer_dispatch_type rasterizer_dispatch(*current_buffer_,svg_renderer,*ras_ptr,
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bbox, marker_trans, sym, *detector_, scale_factor_);
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vertex_converter<box2d<double>, markers_rasterizer_dispatch_type, markers_symbolizer,
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CoordTransform, proj_transform, agg::trans_affine, conv_types>
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converter(query_extent_* 1.1,rasterizer_dispatch, sym,t_,prj_trans,tr,scale_factor_);
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if (sym.clip()) converter.template set<clip_line_tag>(); //optional clip (default: true)
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converter.template set<transform_tag>(); //always transform
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if (sym.smooth() > 0.0) converter.template set<smooth_tag>(); // optional smooth converter
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BOOST_FOREACH(geometry_type & geom, feature.paths())
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{
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// TODO - merge this code with point_symbolizer rendering
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if (placement_method == MARKER_POINT_PLACEMENT || geom.num_points() <= 1)
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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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geom.label_interior_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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geom_tr.transform(&x,&y);
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agg::trans_affine matrix = marker_trans;
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matrix.translate(x,y);
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box2d<double> transformed_bbox = bbox * matrix;
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if (sym.get_allow_overlap() ||
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detector_->has_placement(transformed_bbox))
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{
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svg_renderer.render(*ras_ptr, sl, renb, matrix, sym.get_opacity(), bbox);
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if (/* DEBUG */ 0)
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{
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debug_draw_box(buf, transformed_bbox, 0, 0, 0.0);
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}
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if (!sym.get_ignore_placement())
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detector_->insert(transformed_bbox);
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}
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}
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else if (sym.clip())
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{
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typedef agg::conv_clip_polyline<geometry_type> clipped_geometry_type;
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typedef coord_transform<CoordTransform,clipped_geometry_type> path_type;
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typedef agg::conv_transform<path_type, agg::trans_affine> transformed_path_type;
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clipped_geometry_type clipped(geom);
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clipped.clip_box(query_extent_.minx(),query_extent_.miny(),query_extent_.maxx(),query_extent_.maxy());
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path_type path(t_,clipped,prj_trans);
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transformed_path_type path_transformed(path,geom_tr);
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markers_placement<transformed_path_type, label_collision_detector4> placement(path_transformed, bbox, marker_trans, *detector_,
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sym.get_spacing() * scale_factor_,
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sym.get_max_error(),
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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 = marker_trans;
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matrix.rotate(angle);
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matrix.translate(x, y);
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svg_renderer.render(*ras_ptr, sl, renb, matrix, sym.get_opacity(), bbox);
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if (/* DEBUG */ 0)
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{
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debug_draw_box(buf, bbox*matrix, 0, 0, 0.0);
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}
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}
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}
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else
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{
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typedef coord_transform<CoordTransform,geometry_type> path_type;
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typedef agg::conv_transform<path_type, agg::trans_affine> transformed_path_type;
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path_type path(t_,geom,prj_trans);
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transformed_path_type path_transformed(path,geom_tr);
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markers_placement<transformed_path_type, label_collision_detector4> placement(path_transformed, bbox, marker_trans, *detector_,
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sym.get_spacing() * scale_factor_,
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sym.get_max_error(),
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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 = marker_trans;
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matrix.rotate(angle);
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matrix.translate(x, y);
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svg_renderer.render(*ras_ptr, sl, renb, matrix, sym.get_opacity(), bbox);
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if (/* DEBUG */ 0)
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{
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debug_draw_box(buf, bbox*matrix, 0, 0, 0.0);
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}
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}
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}
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converter.apply(geom);
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}
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}
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}
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}
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template void agg_renderer<image_32>::process(markers_symbolizer const&,
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mapnik::feature_impl &,
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proj_transform const&);
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