void operator () (markers_symbolizer const& sym) { expression_ptr const& height_expr = sym.get_height(); if (height_expr) { boost::apply_visitor(f_attr,*height_expr); } expression_ptr const& width_expr = sym.get_width(); if (width_expr) { boost::apply_visitor(f_attr,*width_expr); } collect_transform(sym.get_image_transform()); collect_transform(sym.get_transform()); }
void operator () (markers_symbolizer const& sym) { expression_ptr const& height_expr = sym.get_height(); if (height_expr) { boost::apply_visitor(f_attr,*height_expr); } expression_ptr const& width_expr = sym.get_width(); if (width_expr) { boost::apply_visitor(f_attr,*width_expr); } path_expression_ptr const& filename_expr = sym.get_filename(); if (filename_expr) { path_processor_type::collect_attributes(*filename_expr,names_); } collect_transform(sym.get_image_transform()); collect_transform(sym.get_transform()); }
void grid_renderer<T>::process(markers_symbolizer const& sym, mapnik::feature_impl & feature, proj_transform const& prj_trans) { typedef grid_rendering_buffer buf_type; typedef typename grid_renderer_base_type::pixfmt_type pixfmt_type; typedef typename grid_renderer_base_type::pixfmt_type::color_type color_type; typedef agg::renderer_scanline_bin_solid<grid_renderer_base_type> renderer_type; typedef label_collision_detector4 detector_type; 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); if (!filename.empty()) { boost::optional<marker_ptr> mark = mapnik::marker_cache::instance().find(filename, true); if (mark && *mark) { ras_ptr->reset(); agg::trans_affine geom_tr; evaluate_transform(geom_tr, feature, sym.get_transform()); agg::trans_affine tr = agg::trans_affine_scaling(scale_factor_*(1.0/pixmap_.get_resolution())); if ((*mark)->is_vector()) { using namespace mapnik::svg; typedef agg::pod_bvector<path_attributes> svg_attribute_type; typedef svg_renderer_agg<svg_path_adapter, svg_attribute_type, renderer_type, pixfmt_type > svg_renderer_type; typedef vector_markers_rasterizer_dispatch_grid<buf_type, svg_renderer_type, grid_rasterizer, detector_type, mapnik::grid > 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 // to allow for full control over rx/ry dimensions if (filename == "shape://ellipse" && (width_expr || height_expr)) { svg_storage_type marker_ellipse; vertex_stl_adapter<svg_path_storage> stl_storage(marker_ellipse.source()); svg_path_adapter svg_path(stl_storage); // TODO - clamping to >= 4 pixels 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; buf_type render_buf(pixmap_.raw_data(), width_, height_, width_); dispatch_type rasterizer_dispatch(render_buf, svg_renderer, *ras_ptr, bbox, marker_trans, sym, *detector_, scale_factor_, feature, pixmap_); 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>(); // line clipping disabled due to https://github.com/mapnik/mapnik/issues/1426 //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 apply_markers_multi(feature, converter, sym); } else { box2d<double> const& bbox = (*mark)->bounding_box(); setup_transform_scaling(tr, bbox.width(), bbox.height(), feature, sym); evaluate_transform(tr, feature, sym.get_image_transform()); // TODO - clamping to >= 4 pixels 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()); buf_type render_buf(pixmap_.raw_data(), width_, height_, width_); dispatch_type rasterizer_dispatch(render_buf, svg_renderer, *ras_ptr, bbox, marker_trans, sym, *detector_, scale_factor_, feature, pixmap_); 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>(); // line clipping disabled due to https://github.com/mapnik/mapnik/issues/1426 //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 apply_markers_multi(feature, converter, sym); } } else // raster markers { setup_transform_scaling(tr, (*mark)->width(), (*mark)->height(), feature, sym); evaluate_transform(tr, feature, sym.get_image_transform()); box2d<double> const& bbox = (*mark)->bounding_box(); // - clamp sizes to > 4 pixels of interactivity 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_grid<buf_type, grid_rasterizer, pixfmt_type, grid_renderer_base_type, renderer_type, detector_type, mapnik::grid > dispatch_type; buf_type render_buf(pixmap_.raw_data(), width_, height_, width_); dispatch_type rasterizer_dispatch(render_buf, *ras_ptr, **marker, marker_trans, sym, *detector_, scale_factor_, feature, pixmap_); 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>(); // line clipping disabled due to https://github.com/mapnik/mapnik/issues/1426 //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 apply_markers_multi(feature, converter, sym); } } } }