[processing] Better error reporting in point on surface

m-kuhn · m-kuhn · commit 246685b0cb08 · 2017-07-17T08:38:01.000+02:00
diff --git a/python/plugins/processing/algs/qgis/PointOnSurface.py b/python/plugins/processing/algs/qgis/PointOnSurface.py
@@ -83,7 +83,7 @@ def processAlgorithm(self, parameters, context, feedback):
             if input_geometry:
                 output_geometry = input_geometry.pointOnSurface()
                 if not output_geometry:
-                    raise QgsProcessingException(self.tr('Error calculating point on surface. Check the message log for GEOS errors.'))
+                    raise QgsProcessingException(self.tr('Error calculating point on surface: `{error_message}`'.format(error_message=output_geometry.error())))
 
                 output_feature.setGeometry(output_geometry)
 
