[Qgis-developer] Problems in clipping lines with polygons

[Paolo Cavallini]

Il 20/01/2017 13:56, Giovanni Manghi ha scritto:
>> I am clipping lines with polygons, and I found issues:
>> * QGIS alg does not cut the line at the change of the polygon
>> * GDAL alg does not produce an output
> 
> they both work ok here on 2.14.11

Confirmed also for 2.14. It must have to do with layer validity, as I get:

GDAL command output:
ERROR 1: TopologyException: Input geom 1 is invalid: Self-intersection
at or near point 1591718.5859374921 4869828.5859374423 at
1591718.5859374921 4869828.5859374423
...

So, still the same old issue for gdal; what is strange is the behaviour
of QGIS.

All the best.
-- 
Paolo Cavallini - www.faunalia.eu
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