Remove the whole ring / linestring if number of vertices to small

qgis · Dec 28, 2015 · bf3fbec · bf3fbec
1 parent 416c004
commit bf3fbec
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/src/core/geometry/qgscurvepolygonv2.cpp b/src/core/geometry/qgscurvepolygonv2.cpp
@@ -702,7 +702,7 @@ bool QgsCurvePolygonV2::deleteVertex( const QgsVertexId& vId )
 
   QgsCurveV2* ring = vId.ring == 0 ? mExteriorRing : mInteriorRings.at( vId.ring - 1 );
   int n = ring->numPoints();
-  if ( n <= 2 )
+  if ( n <= 4 )
   {
     //no points will be left in ring, so remove whole ring
     if ( vId.ring == 0 )

diff --git a/src/core/geometry/qgslinestringv2.cpp b/src/core/geometry/qgslinestringv2.cpp
@@ -644,6 +644,12 @@ bool QgsLineStringV2::deleteVertex( const QgsVertexId& position )
   {
     mM.remove( position.vertex );
   }
+
+  if( numPoints() == 1 )
+  {
+    clear();
+  }
+
   mBoundingBox = QgsRectangle(); //set bounding box invalid
   return true;
 }