Ignore invalid polygon geometries to avoid crashes in tessellation

wonder-sk · wonder-sk · commit 35b37a228f66 · 2017-09-15T10:39:08.000+02:00
diff --git a/src/3d/polygonentity.cpp b/src/3d/polygonentity.cpp
@@ -102,6 +102,13 @@ Qt3DRender::QGeometryRenderer *PolygonEntityNode::renderer( const Map3D &map, co
     if ( QgsWkbTypes::isCurvedType( geom.geometry()->wkbType() ) )
       geom = QgsGeometry( geom.geometry()->segmentize() );
 
+    if ( !geom.isGeosValid() )
+    {
+      // invalid geometries break tessellation
+      qDebug() << "skipping invalid geometry" << f.id();
+      continue;
+    }
+
     QgsAbstractGeometry *g = geom.geometry();
 
     if ( QgsWkbTypes::flatType( g->wkbType() ) == QgsWkbTypes::Polygon )
