aSession.startOperation()
aFeature = aDoc.addFeature("Point")
aFeatureData = aFeature.data()
+assert(aFeatureData is not None)
aFeatureData.real("x").setValue(0.)
aFeatureData.real("y").setValue(0.)
aFeatureData.real("z").setValue(0.)
-aFeatureName = aFeatureData.name()
+aFeatureName = aFeature.name()
aFeature.execute()
aSession.finishOperation()