[3d] Fix crash when line feature cannot be buffered

E.g. when it has only one vertex
qgis · Oct 8, 2020 · f6eed85 · f6eed85
1 parent 03fdc0c
commit f6eed85
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/3d/symbols/qgsline3dsymbol_p.cpp b/src/3d/symbols/qgsline3dsymbol_p.cpp
@@ -120,6 +120,8 @@ void QgsBufferedLine3DSymbolHandler::processFeature( QgsFeature &f, const Qgs3DR
 
   QgsGeos engine( g );
   QgsAbstractGeometry *buffered = engine.buffer( mSymbol->width() / 2., nSegments, endCapStyle, joinStyle, mitreLimit ); // factory
+  if ( !buffered )
+    return;
 
   if ( QgsWkbTypes::flatType( buffered->wkbType() ) == QgsWkbTypes::Polygon )
   {