Ticket #17 (closed defect: fixed)

Opened 13 years ago

Last modified 12 years ago

invalid geometries when NAS POLYGON contains curves

Reported by: astrid.emde Owned by: warmedam
Priority: major Milestone: 0.6 release
Component: ogr Version: 0.6
Keywords: Cc:

Description (last modified by astrid.emde) (diff)

  • example of an invalid geometry invalid_geometry
  • the polygon which is created by ogr2ogr has equal points and creates an invalid geometry

Change History

comment:1 Changed 13 years ago by astrid.emde

  • Description modified (diff)

comment:2 Changed 13 years ago by warmerdam


I believe I have fixed the problem with duplicate points - details at:


The fixes are in trunk, 1.9 and 1.8 branches.

comment:3 Changed 12 years ago by astrid.emde

Hi Frank,

I still get invalid geometries (self-intersections) with objects that contains arcs. I added two new geometries to invalid_geometry. I have some more > 200 invalid ones....

Please could you have a look?


comment:4 Changed 12 years ago by astrid.emde

  • Status changed from new to closed
  • Resolution set to fixed

Das Problem der Erzeugung von ungültigen Geometrien beim Import von Kreisbögen wurde im trunk sowie den Versionen 1.8 und 1.9 behoben.

Vielen Dank an Frank Warmedam

Fixed in gdal trunk, r23863 backported to 1.9 (r23891) and 1.8 (r23892) branches

Have a look at the GDAL ticket: http://trac.osgeo.org/gdal/ticket/4451#comment:5

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