[Qgis-developer] crash when accessing geometry from Python console

[Martin Dobias]

Hi Bernhard

that's a long standing unresolved issue with python bindings:
http://hub.qgis.org/issues/777

Regards
Martin



On Thu, Jun 25, 2015 at 2:43 PM, Bernhard Ströbl
<bernhard.stroebl at jena.de> wrote:
> Hi everybody,
>
> I try to do the following from the Python console:
> g=iface.activeLayer().selectedFeatures()[0].geometry()
> returns a QgsGeometry objekt but as soon as I want to do anything with it
> QGIS crashes (layer is a memory line layer but a PostGIS linestring layer
> behaves the same). Any request like
> g.type()
> g.length()
> g.anything crashes QGIS
> g.asPolyline() crash if the line has three vertices, with only two vertices
> it returns an empty array.
>
> My goal is not the Python console but a plugin; the plugin crashes, too :-(
>
> tested with 2.8 on Win7 (64bit) and 2.8 & 2.9 on Ubuntu (64 bit) so it
> should not be connected to the geometry overhaul I reckon.
>
> any help appreciated
>
> Bernhard
>
>
>
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