void agg_renderer<T>::process(line_symbolizer const& sym, Feature const& feature, proj_transform const& prj_trans) { typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base; typedef coord_transform2<CoordTransform,geometry_type> path_type; stroke const& stroke_ = sym.get_stroke(); color const& col = stroke_.get_color(); unsigned r=col.red(); unsigned g=col.green(); unsigned b=col.blue(); unsigned a=col.alpha(); agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4); agg::pixfmt_rgba32_plain pixf(buf); if (sym.get_rasterizer() == RASTERIZER_FAST) { typedef agg::renderer_outline_aa<ren_base> renderer_type; typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type; agg::line_profile_aa profile; //agg::line_profile_aa profile(stroke_.get_width() * scale_factor_, agg::gamma_none()); profile.width(stroke_.get_width() * scale_factor_); ren_base base_ren(pixf); renderer_type ren(base_ren, profile); ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity()))); //ren.clip_box(0,0,width_,height_); rasterizer_type ras(ren); ras.line_join(agg::outline_miter_accurate_join); ras.round_cap(true); for (unsigned i=0;i<feature.num_geometries();++i) { geometry_type const& geom = feature.get_geometry(i); if (geom.num_points() > 1) { path_type path(t_,geom,prj_trans); ras.add_path(path); } } } else { typedef agg::renderer_scanline_aa_solid<ren_base> renderer; agg::scanline_p8 sl; ren_base renb(pixf); renderer ren(renb); ras_ptr->reset(); switch (stroke_.get_gamma_method()) { case GAMMA_POWER: ras_ptr->gamma(agg::gamma_power(stroke_.get_gamma())); break; case GAMMA_LINEAR: ras_ptr->gamma(agg::gamma_linear(0.0, stroke_.get_gamma())); break; case GAMMA_NONE: ras_ptr->gamma(agg::gamma_none()); break; case GAMMA_THRESHOLD: ras_ptr->gamma(agg::gamma_threshold(stroke_.get_gamma())); break; case GAMMA_MULTIPLY: ras_ptr->gamma(agg::gamma_multiply(stroke_.get_gamma())); break; default: ras_ptr->gamma(agg::gamma_power(stroke_.get_gamma())); } metawriter_with_properties writer = sym.get_metawriter(); for (unsigned i=0;i<feature.num_geometries();++i) { geometry_type const& geom = feature.get_geometry(i); if (geom.num_points() > 1) { path_type path(t_,geom,prj_trans); if (stroke_.has_dash()) { agg::conv_dash<path_type> dash(path); dash_array const& d = stroke_.get_dash_array(); dash_array::const_iterator itr = d.begin(); dash_array::const_iterator end = d.end(); for (;itr != end;++itr) { dash.add_dash(itr->first * scale_factor_, itr->second * scale_factor_); } agg::conv_stroke<agg::conv_dash<path_type > > stroke(dash); line_join_e join=stroke_.get_line_join(); if ( join == MITER_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == MITER_REVERT_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == ROUND_JOIN) stroke.generator().line_join(agg::round_join); else stroke.generator().line_join(agg::bevel_join); line_cap_e cap=stroke_.get_line_cap(); if (cap == BUTT_CAP) stroke.generator().line_cap(agg::butt_cap); else if (cap == SQUARE_CAP) stroke.generator().line_cap(agg::square_cap); else stroke.generator().line_cap(agg::round_cap); stroke.generator().miter_limit(4.0); stroke.generator().width(stroke_.get_width() * scale_factor_); ras_ptr->add_path(stroke); } else { agg::conv_stroke<path_type> stroke(path); line_join_e join=stroke_.get_line_join(); if ( join == MITER_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == MITER_REVERT_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == ROUND_JOIN) stroke.generator().line_join(agg::round_join); else stroke.generator().line_join(agg::bevel_join); line_cap_e cap=stroke_.get_line_cap(); if (cap == BUTT_CAP) stroke.generator().line_cap(agg::butt_cap); else if (cap == SQUARE_CAP) stroke.generator().line_cap(agg::square_cap); else stroke.generator().line_cap(agg::round_cap); stroke.generator().miter_limit(4.0); stroke.generator().width(stroke_.get_width() * scale_factor_); ras_ptr->add_path(stroke); if (writer.first) writer.first->add_line(path, feature, t_, writer.second); } } } ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity()))); agg::render_scanlines(*ras_ptr, sl, ren); } }
void agg_renderer<T>::process(line_symbolizer const& sym, Feature const& feature, proj_transform const& prj_trans) { typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base; typedef coord_transform2<CoordTransform,geometry_type> path_type; typedef agg::renderer_outline_aa<ren_base> renderer_oaa; typedef agg::rasterizer_outline_aa<renderer_oaa> rasterizer_outline_aa; typedef agg::renderer_scanline_aa_solid<ren_base> renderer; agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4); agg::pixfmt_rgba32_plain pixf(buf); ren_base renb(pixf); stroke const& stroke_ = sym.get_stroke(); color const& col = stroke_.get_color(); unsigned r=col.red(); unsigned g=col.green(); unsigned b=col.blue(); unsigned a=col.alpha(); renderer ren(renb); ras_ptr->reset(); ras_ptr->gamma(agg::gamma_linear()); agg::scanline_p8 sl; metawriter_with_properties writer = sym.get_metawriter(); for (unsigned i=0;i<feature.num_geometries();++i) { geometry_type const& geom = feature.get_geometry(i); if (geom.num_points() > 1) { path_type path(t_,geom,prj_trans); if (stroke_.has_dash()) { agg::conv_dash<path_type> dash(path); dash_array const& d = stroke_.get_dash_array(); dash_array::const_iterator itr = d.begin(); dash_array::const_iterator end = d.end(); for (;itr != end;++itr) { dash.add_dash(itr->first * scale_factor_, itr->second * scale_factor_); } agg::conv_stroke<agg::conv_dash<path_type > > stroke(dash); line_join_e join=stroke_.get_line_join(); if ( join == MITER_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == MITER_REVERT_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == ROUND_JOIN) stroke.generator().line_join(agg::round_join); else stroke.generator().line_join(agg::bevel_join); line_cap_e cap=stroke_.get_line_cap(); if (cap == BUTT_CAP) stroke.generator().line_cap(agg::butt_cap); else if (cap == SQUARE_CAP) stroke.generator().line_cap(agg::square_cap); else stroke.generator().line_cap(agg::round_cap); stroke.generator().miter_limit(4.0); stroke.generator().width(stroke_.get_width() * scale_factor_); ras_ptr->add_path(stroke); } else { agg::conv_stroke<path_type> stroke(path); line_join_e join=stroke_.get_line_join(); if ( join == MITER_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == MITER_REVERT_JOIN) stroke.generator().line_join(agg::miter_join); else if( join == ROUND_JOIN) stroke.generator().line_join(agg::round_join); else stroke.generator().line_join(agg::bevel_join); line_cap_e cap=stroke_.get_line_cap(); if (cap == BUTT_CAP) stroke.generator().line_cap(agg::butt_cap); else if (cap == SQUARE_CAP) stroke.generator().line_cap(agg::square_cap); else stroke.generator().line_cap(agg::round_cap); stroke.generator().miter_limit(4.0); stroke.generator().width(stroke_.get_width() * scale_factor_); ras_ptr->add_path(stroke); if (writer.first) writer.first->add_line(path, feature, t_, writer.second); } } } ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity()))); agg::render_scanlines(*ras_ptr, sl, ren); }