make valid geometry befor perform geos methods. Fixes #32488

The avoidIntersection method uses GEOS as backend to perform the operations. However, our avoidIntersection method does not check if the geometries are valid. Geos does not perform this verification either, so the resulting geometry may still overlap a polygon that is to be avoided.
qgis · Feb 12, 2021 · a208ec9 · a208ec9
1 parent b47c6a9
commit a208ec9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/geometry/qgsgeometryeditutils.cpp b/src/core/geometry/qgsgeometryeditutils.cpp
@@ -265,7 +265,7 @@ std::unique_ptr<QgsAbstractGeometry> QgsGeometryEditUtils::avoidIntersections( c
       if ( !f.hasGeometry() )
         continue;
 
-      nearGeometries << f.geometry();
+      nearGeometries << f.geometry().makeValid();
     }
   }