Hi all
PyQgis question. I'm trying to display magnitudes on a map using pyqgis. I
created a simple QgsVectorLayer that displays a dot at each earthquake
location. This works fine.
I'd like to vary the size of each dot according to each earthquake's
magnitude. I tried the following:
pr = eq_layer.dataProvider()
pr.addAttributes([QgsField('magnitude', QVariant.Double), ...])
...
renderer = self.eq_layer.rendererV2()
renderer.setSizeScaleField('magnitude')
However, as soon as I set the sizeScaleField, the layer stops showing
anything.
What am I missing?
--
View this message in context:
http://osgeo-org.1560.x6.nabble.com/Nothing-displayed-if-sizeScaleField-is-set-on-the-renderer-tp5178000.html
Sent from the Quantum GIS - User mailing list archive at Nabble.com.
_______________________________________________
Qgis-user mailing list
Qgis-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-user
