Hi,

We use the WPF diagram. We draw nodes (custom nodes) and links. Two nodes can have multiple links between them.

I added in copy files to implement our custom nodes (BaseElNode). To test, we can add these files to the Mindfusion Demo project. I added a xml file: "Mindfusion sample.xml" which contains our nodes and links. It is the file that we can open in the demo project in order to test the layouts.

With the demo, we try the different layouts of the sample and at the end the diagram is on one line… We have the feeling that no layout works with custom nodes.

Another issue is that the first node has no icon. Can you explain what is wrong on this point?

Maybe we don’t use correctly custom node. For instance, we create 4 anchor points to see the different links separately but maybe there is a layout to do this automatically. As we can have more than 4 links between two nodes.

Best regards,

The icon works if you move the style override to a static constructor -

static BaseElNode()
{
	DefaultStyleKeyProperty.OverrideMetadata(
		typeof(BaseElNode), new FrameworkPropertyMetadata(typeof(BaseElNode)));
} 

instead of instance one -

public BaseElNode()
{
    if (isFirstCall) {
    DefaultStyleKeyProperty.OverrideMetadata(
        typeof(BaseElNode), new FrameworkPropertyMetadata(typeof(BaseElNode)));
    isFirstCall = false;
    }
} 

My guess is the instance one does not apply the full template on time, but it's ready for next loaded nodes...

Regards,
Slavcho

Hi,

Layout classes ignore anchor points by default. You could set Anchoring to Reassign or Keep to use them, but note that the layout classes won't try to change node positions to better match anchor points. You could instead use properties like LinkPadding to pull apart links, or run OrthogonalRouter as a post-processing step. E.g. try following code with and without the routing calls.

Regards,
Slavcho

var layout = new LayeredLayout();
layout.Orientation = Layout.Orientation.Vertical;
layout.LinkType = LayeredLayoutLinkType.Cascading;
layout.LinkPadding = 10;
layout.Arrange(diagram);

//diagram.LinkRouter = new GridRouter();
//diagram.RouteAllLinks();
new OrthogonalRouter().Arrange(diagram);