Prevent crash in case of invalid geometries

qgis · Jun 14, 2013 · 6370153 · 6370153
1 parent 08fc298
commit 6370153
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/core/qgsgeometry.cpp b/src/core/qgsgeometry.cpp
@@ -353,6 +353,10 @@ static GEOSGeometry *createGeosLinearRing( const QgsPolyline& polyline )
 
 static GEOSGeometry *createGeosPolygon( const QVector<GEOSGeometry*> &rings )
 {
+  if ( rings.size() < 1 )
+  {
+    return GEOSGeom_createEmptyPolygon();
+  }
   GEOSGeometry *shell = rings[0];
   GEOSGeometry **holes = NULL;