Function agg2RenderLine

mapagg.cpp:186–226

}

int agg2RenderLine(imageObj *img, shapeObj *p, strokeStyleObj *style) {

   AGG2Renderer *r = AGG_RENDERER(img);
   line_adaptor lines = line_adaptor(p);

#ifdef AGG_ALIASED_ENABLED
   r->m_rasterizer_primitives.reset();
   r->m_renderer_primitives.line_color(aggColor(style->color));
   r->m_rasterizer_primitives.add_path(lines);
   return MS_SUCCESS;
#endif

   r->m_rasterizer_aa.reset();
   r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);
   r->m_renderer_scanline.color(aggColor(style->color));

   if (style->patternlength <= 0) {
      mapserver::conv_stroke<line_adaptor> stroke(lines);
      stroke.width(style->width);
      if(style->width>1)
         applyCJC(stroke, style->linecap, style->linejoin);
      r->m_rasterizer_aa.add_path(stroke);
   } else {
      mapserver::conv_dash<line_adaptor> dash(lines);
      mapserver::conv_stroke<mapserver::conv_dash<line_adaptor> > stroke_dash(dash);
      for (int i = 0; i < style->patternlength; i += 2) {

         if (i < style->patternlength - 1) {

            dash.add_dash(MS_MAX(1,MS_NINT(style->pattern[i])),
                    MS_MAX(1,MS_NINT(style->pattern[i + 1])));
         }
      }
      stroke_dash.width(style->width);
      if(style->width>1)
         applyCJC(stroke_dash, style->linecap, style->linejoin);
      r->m_rasterizer_aa.add_path(stroke_dash);
   }
   mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);
   return MS_SUCCESS;
}

int agg2RenderLineTiled(imageObj *img, shapeObj *p, imageObj * tile) {