Il giorno Thu, 5 Dec 2013 11:10:03 +0100
Geo DrinX <geodr...@gmail.com> ha scritto:
> Hello all,
Hi Roberto (sorry for my bad english :-)
> as in object, within pyQGis I need to read the geometry of a
> SpatiaLite vector layer.
>
> This is my source code:
>
> layer = iface.mapCanvas().currentLayer()
> iter = layer.getFeatures()
> for feat in iter:
> geom = feat.geometry()
> elem = geom.asPolyline()
> print("ELEM %s\n") %(elem)
> for p1 in elem:
> x1,y1 = p1.x(),p1.y()
> print("XY= %lf %lf\n") %(x1, y1)
>
>
> But... it returns only:
>
> ELEM []
> ELEM []
> ELEM []
> ELEM []
> .....
> Somebody can help me to understand how to get geometry from
> SpatiaLite ?
>
I tried in python console on a Spatialite linestring layer:
cLayer=iface.activeLayer()
iter=cLayer.getFeatures()
feat=iter.next()
geom=feat.geometry()
ln=geom.asPolyline()
pnt=ln[0]
print pnt.x(),pnt.y()
with the correct answer:
1511590.31375 5099925.78455
(but I'm on a old 1.9.0-Master)
> Thank you in advance
>
> Roberto
bye,
giuliano
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