Ticket #173 (closed defect: duplicate)

Opened 7 years ago

Last modified 4 years ago

Polygon clipping/fill issues

Reported by: gsherman Owned by: wonder
Priority: critical: causes crash or data corruption Milestone:
Component: MapCanvas Version: Trunk
Keywords: Cc:
Platform Version: Platform: All
Must Fix for Release: Awaiting user input:

Description

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.

Attachments

goodpolys.gif Download (29.2 KB) - added by gsherman 7 years ago.
Layer drawn with QGIS 0.7.4 (normal)
badpolys.gif Download (28.6 KB) - added by gsherman 7 years ago.
Layer drawn with QGIS 0.8 (note clipping/fill issues)

Change History

Changed 7 years ago by gsherman

Layer drawn with QGIS 0.7.4 (normal)

Changed 7 years ago by gsherman

Layer drawn with QGIS 0.8 (note clipping/fill issues)

Changed 7 years ago by g_j_m

  • status changed from new to closed
  • resolution set to duplicate

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.

Changed 4 years ago by anonymous

  • milestone Version 0.8 deleted

Milestone Version 0.8 deleted

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