Bug report #173

Polygon clipping/fill issues

Added by Gary Sherman almost 18 years ago. Updated almost 15 years ago.

Assignee:Martin Dobias
Category:Map Canvas
Affected QGIS version: Regression?:No
Operating System:All Easy fix?:No
Pull Request or Patch supplied: Resolution:duplicate
Crashes QGIS or corrupts data: Copied to github as #:10232


There is a problem with polygon fills reminiscent of the issues we had on OS X at 0.7.4. This occurs when rendering a polygon with a large number of vertices.

I suspect that this is related to the changes in 0.8 from a custom canvas to the Qt canvas, although I have not researched it to be certain.

This is a major issue.

goodpolys.gif - Layer drawn with QGIS 0.7.4 (normal) (29.2 KB) Gary Sherman, 2006-07-05 11:27 PM

badpolys.gif - Layer drawn with QGIS 0.8 (note clipping/fill issues) (28.6 KB) Gary Sherman, 2006-07-05 11:32 PM


#1 Updated by Gavin Macaulay - almost 18 years ago

  • Resolution set to duplicate
  • Status changed from Open to Closed

This ticket is a duplicate of #83.

It is a bug in Qt4, the progress of which can be followed at http://www.trolltech.com/developer/task-tracker/index_html?method=entry&id=118762

A workaround exists - see ticket #83.

#2 Updated by Anonymous almost 15 years ago

Milestone Version 0.8 deleted

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