fix #7171

qgis · Feb 17, 2013 · ddaded8 · ddaded8
1 parent 7fb4649
commit ddaded8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/python/plugins/fTools/tools/doGeoprocessing.py b/python/plugins/fTools/tools/doGeoprocessing.py
@@ -464,7 +464,7 @@ def convex_hull(self, useField ):
     GEOS_EXCEPT = True
     FEATURE_EXCEPT = True
     vproviderA = self.vlayerA.dataProvider()
-    writer = QgsVectorFileWriter( self.myName, self.myEncoding, vprovider.fields(),
+    writer = QgsVectorFileWriter( self.myName, self.myEncoding, vproviderA.fields(),
                                   QGis.WKBPolygon, vproviderA.crs() )
     if writer.hasError():
       return GEOS_EXCEPT, FEATURE_EXCEPT, True, writer.errorMessage()