Hi,

Thanks, it is working. But I have another question.
With this sample code all edges will be NArrowShape edges. But I need different edge types during importing edges using NGraphDataSourceImporter.
So the selected edge type should be determined based on the current database record in the MyEdgeShapeFactory.CreateShape method. How can I do this?
When a breakpoint is hit in the NGraphDataSourceImporter.EdgeImported event, the edge is already created as NArrowShape.

Thanks,
Sandor Nagy

Hi Sandor,

The following is a simple implementation of a shape factory:

 

public class MyEdgeShapeFactory : NShapesFactory

{

      public MyEdgeShapeFactory()

            : base("MyEdgeShapeFactory")

      {

      }

 

      public override int ShapesCount

      {

            get

            {

                  return Enum.GetValues(GetEnumType()).Length;

            }

      }

     

      public override NShape CreateShape(int index)

      {

            switch ((MyEdgeShapes)index)

            {

                  case MyEdgeShapes.ArrowShape:

                        NArrowShape arrowShape = new NArrowShape(new NPointF(0, 0), new NPointF(DefaultSize.Width, DefaultSize.Height));

                        return arrowShape;

 

                  default:

                        throw new Exception("New shape type ?");

            }

      }

      protected override NShapeInfo CreateShapeInfo(int index)

      {

            MyEdgeShapes edgeShape = (MyEdgeShapes)index;

            NShapeInfo info = new NShapeInfo(NSystem.InsertSpacesBeforeUppers(edgeShape.ToString()));

            return info;

      }

      protected override Type GetEnumType()

      {

            return typeof(MyEdgeShapes);

      }

}

 

public enum MyEdgeShapes

{

      ArrowShape

}

 

To make the graph data importer use this shape factory to create edges, use the following piece of code:

 

MyEdgeShapeFactory edgesFactory = new MyEdgeShapeFactory();

edgesFactory.DefaultSize = new NSizeF(60, 30);

graphImporter.EdgeShapesFactory = edgesFactory;

graphImporter.EdgeShapesName = MyEdgeShapes.ArrowShape.ToString();

Best Regards,
Nevron Support Team

Hi,
Can you provide me a sample code?

Thanks,
Sandor Nagy

Hi,
You can create a shape factory (by implementing the INShapeFactory interface) that creates the edge types you want and assign it to the EdgesShapeFactory property of the graph importer.

Best Regards,
Nevron Support Team

Hi,

I'm using the NGraphDataSourceImporter class to import the vertices and edges into the diagram. By default the types of the edges is NRoutableConnector.
How can I change the type of some edges to e.g. NArrowShape in the NGraphDataSourceImporter.EdgeImported event?

Thanks,
Sandor Nagy