Opened 17 years ago

Last modified 15 years ago

#1415 closed defect

ogr2ogr/shapefile fails to generate valid polygons with hole touching boundary — at Initial Version

Reported by: llo@… Owned by: warmerdam
Priority: normal Milestone: 1.4.2
Component: OGR_SF Version: 1.3.2
Severity: normal Keywords: shapefile
Cc: llo@…, warmerdam, Markus Neteler, frederic.claudel@…

Description 

Using ogr2ogr to generate a shapefile will produce invalid polygons with hole if the hole touches the outer-boundary in one point. It produces a simple polygon without any hole, and ONLY a self-intersecting boundary.

This ONLY applies to shapefiles, no problems found with postgis or tab-file writer.

Example polygon in WKT that cannot be converted to a valid shapefile: POLYGON ((0 0, 0 3, 3 3, 3 0, 0 0), (0 0, 1 2, 2 1, 0 0))

/Regards Lars

Change History (1)

by fredc, 17 years ago

Attachment: shpopen.c​ added

OGR shapefile patched for touching polygons

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