[Qgis-developer] Add ST_MakeValid functionality to QgsGeometry?

[Jürgen E. Fischer]

Hi Larry,

On Mon, 17. Sep 2012 at 14:15:42 -0600, Larry Shaffer wrote:
> Recently there have been several labeling-related issues where the
> conclusion is that a label is not shown because the geometry is
> invalid (generally polygons). I noticed Sandro Santilli's work for
> PostGIS 2.0 with the new ST_MakeValid function [0]. I'm no geometry
> whiz, but it appears to be based solely off of GEOS (and some other
> PostGIS internals).

The functionality is in PostGIS.  It just uses GEOS calls, but the
actual fixing is done in PostGIS (in lwgeom_geos_clean.c).

But we could adapt the code there for inclusion in QgsGeometry.


Jürgen

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