[Qgis-community-team] [Get Feature Color] - How to?

[Danilo da Silveira Figueira]

I got this,
Map will contain a index to each color used in rendering.
If someone is having the same problem the example code is below:

from PyQt4.QtCore import QVariant

layer = iface.addVectorLayer("estados.shp", "estados", "ogr")
if not layer:
  print "Layer failed to load!"

layer.loadSldStyle("estados_Nome.sld")
color = 0
map = {}
for curRule in layer.rendererV2().rootRule().children() :
  layer.dataProvider().setSubsetString(curRule.filterExpression())
  color +=1
  for curFeature in layer.dataProvider().getFeatures():
    map[curFeature.id()] = color

layer.dataProvider().setSubsetString("")
map

2015-09-10 14:14 GMT-03:00 Danilo da Silveira Figueira <
danilomalzao at hotmail.com>:

> Hello All,
>
> I'm stuck here, any help would be appreciated.
> I have to create a attribute column with the respective color used in
> renderer of this attribute, i am using the QgsVectorLayer
> <http://qgis.org/api/classQgsVectorLayer.html>.loadSldStyle that creates
> a QgsRuleBasedRendererV2
> <http://qgis.org/api/classQgsRuleBasedRendererV2.html> but
> the symbolsForFeature is returning empty.
> With the symbol i could get the color and finish my job, but the
> symbolsList is always empty.
>
> My Try:
>
> layer = QgsVectorLayer("estados.shp", "estados", "ogr")
> if not layer:
>   print "Layer failed to load!"
>
> layer.loadSldStyle("estados_Nome.sld")
> layer.triggerRepaint()
> for curFeature in layer.dataProvider().getFeatures():
>   layer.rendererV2().symbolsForFeature(curFeature)
>
>
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