Fix orthogonalize

qgis · Aug 11, 2022 · 9c76c07 · 9c76c07
1 parent af9f432
commit 9c76c07
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/core/geometry/qgsinternalgeometryengine.cpp b/src/core/geometry/qgsinternalgeometryengine.cpp
@@ -525,6 +525,10 @@ QgsVector calcMotion( const QgsPoint &a, const QgsPoint &b, const QgsPoint &c,
     dotProduct += 1.0;
 
   QgsVector new_v = p + q;
+  if ( qgsDoubleNear( new_v.length(), 0.0 ) )
+  {
+    return QgsVector( 0, 0 );
+  }
   // 0.1 magic number from JOSM implementation - think this is to limit each iterative step
   return new_v.normalized() * ( 0.1 * dotProduct * scale );
 }