@Override
public void load(ReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource vertexResource, IElement element) throws DatabaseException {
-
+ if (!graph.hasStatement(vertexResource))
+ return; // already deleted
+
double[] coords = graph.getRelatedValue(vertexResource, DIA.HasLocation);
DistrictNetworkVertex vertex = new DistrictNetworkVertex(coords);