[processing] correctly handle tiny polygons smaller than raster cell

size in Hypsometric curves algorithm (fix #12278)
qgis · Feb 26, 2015 · a41094d · a41094d
1 parent 3a187be
commit a41094d
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/python/plugins/processing/algs/qgis/HypsometricCurves.py b/python/plugins/processing/algs/qgis/HypsometricCurves.py
@@ -132,6 +132,12 @@ def processAlgorithm(self, progress):
             srcOffset = (startColumn, startRow, width, height)
             srcArray = rasterBand.ReadAsArray(*srcOffset)
 
+            if srcOffset[2] == 0 or srcOffset[3] == 0:
+                progress.setInfo(
+                    self.tr('Feature %d does is smaller than raster '
+                            'cell size' % f.id()))
+                continue
+
             newGeoTransform = (
                 geoTransform[0] + srcOffset[0] * geoTransform[1],
                 geoTransform[1],