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avoid double drawing of lines with RASTERIZER_FAST

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This commit is contained in:
Dane Springmeyer 2012-08-30 23:34:43 -07:00
parent 2e44e8c470
commit 3d9aa3db10
1 changed files with 2 additions and 6 deletions
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8
src/agg/process_line_symbolizer.cpp
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@ -108,9 +108,7 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
{
typedef agg::renderer_outline_aa<renderer_base> renderer_type;
typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type;
// need to reduce width by half to match standard rasterizer look
double scaled = scale_factor_ * .5;
agg::line_profile_aa profile(stroke_.get_width() * scaled, agg::gamma_power(stroke_.get_gamma()));
agg::line_profile_aa profile(stroke_.get_width() * scale_factor_, agg::gamma_power(stroke_.get_gamma()));
renderer_type ren(renb, profile);
ren.color(agg::rgba8_pre(r, g, b, int(a*stroke_.get_opacity())));
rasterizer_type ras(ren);
@ -118,14 +116,12 @@ void agg_renderer<T>::process(line_symbolizer const& sym,
vertex_converter<box2d<double>, rasterizer_type, line_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>
converter(clipping_extent,ras,sym,t_,prj_trans,tr,scaled);
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
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
if (stroke_.has_dash()) converter.set<dash_tag>();
converter.set<stroke_tag>(); //always stroke
BOOST_FOREACH( geometry_type & geom, feature.paths())
{