Prevent division by 0

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@12764 c8812cc2-4d05-0410-92ff-de0c093fc19c
qgis · Jan 14, 2010 · db2cdc7 · db2cdc7
1 parent ebee6cf
commit db2cdc7
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/src/core/symbology-ng/qgssymbollayerv2utils.cpp b/src/core/symbology-ng/qgssymbollayerv2utils.cpp
@@ -657,7 +657,15 @@ double QgsSymbolLayerV2Utils::pixelSizeScaleFactor( QgsRenderContext& c, QgsSymb
   }
   else //QgsSymbol::MapUnit
   {
-    return c.rasterScaleFactor() / c.mapToPixel().mapUnitsPerPixel();
+    double mup = c.mapToPixel().mapUnitsPerPixel();
+    if ( mup > 0 )
+    {
+      return c.rasterScaleFactor() / c.mapToPixel().mapUnitsPerPixel();
+    }
+    else
+    {
+      return 1.0;
+    }
   }
 }