[Geometry checker] Ignore zero-length edges when searching for shared…

… edges
qgis · Jul 14, 2016 · 046386e · 046386e
1 parent 13da9f5
commit 046386e
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/src/plugins/geometry_checker/utils/qgsgeometrycheckerutils.cpp b/src/plugins/geometry_checker/utils/qgsgeometrycheckerutils.cpp
@@ -75,7 +75,16 @@ namespace QgsGeometryCheckerUtils
           QgsPointV2 p2 = geom1->vertexAt( QgsVertexId( iPart1, iRing1, jVert1 ) );
           double lambdap1 = 0.;
           double lambdap2 = qSqrt( QgsGeometryUtils::sqrDistance2D( p1, p2 ) );
-          QgsVector d = QgsVector( p2.x() - p1.x(), p2.y() - p1.y() ).normalized();
+          QgsVector d;
+          try
+          {
+            d = QgsVector( p2.x() - p1.x(), p2.y() - p1.y() ).normalized();
+          }
+          catch ( const QgsException& )
+          {
+            // Edge has zero length, skip
+            continue;
+          }
 
           for ( int iPart2 = 0, nParts2 = geom2->partCount(); iPart2 < nParts2; ++iPart2 )
           {