Umm, I want to test an experiment.
I see that qgis draws the geometries (LineStrings or Polygons) in independent
calls ("painter->drawPolyline" or "painter->drawPolygon()" calls). I have
experience using GDI++ as renderer and it is very faster joining n-geometries
in one geometry-path and then flush this complex object to the renderer.
I want check how qt-painter (or qt-image) behaves using this trick (It not is
applicable in all layer styles but it is for the simple layer style). Someone
knows something about it?
Thank you very much._______________________________________________
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