Fixed #1605.

wonder · wonder · commit 7ecaa9bcbea3 · 2009-03-31T19:13:12.000Z
git-svn-id: http://svn.osgeo.org/qgis/trunk@10448 c8812cc2-4d05-0410-92ff-de0c093fc19c
diff --git a/src/core/qgsgeometry.cpp b/src/core/qgsgeometry.cpp
@@ -312,6 +312,9 @@ static GEOSGeometry *createGeosLineString( const QgsPolyline& polyline )
 static GEOSGeometry *createGeosLinearRing( const QgsPolyline& polyline )
 {
   GEOSCoordSequence *coord = 0;
+  
+  if (polyline.count() == 0)
+    return 0;
 
   try
   {

Original file line number	Diff line number	Diff line change
`@@ -312,6 +312,9 @@ static GEOSGeometry *createGeosLineString( const QgsPolyline& polyline )`
`312`	`312`	`static GEOSGeometry *createGeosLinearRing( const QgsPolyline& polyline )`
`313`	`313`	`{`
`314`	`314`	`GEOSCoordSequence *coord = 0;`
	`315`	`+`
	`316`	`+ if (polyline.count() == 0)`
	`317`	`+ return 0;`
`315`	`318`
`316`	`319`	`try`
`317`	`320`	`{`