Hello Stoyo & the team - and happy new 2014!

when the users generate like 100 or more nodes (we do not use much links) the rendering becomes much slower as it looks like that on any change of the nodes (they often overlap in Z in our case as they are stacked like sheets to save space) like moving etc, the whole diagram gets re-rendered and that is like 3 secs or more time.

we were unable to find some way to reduce the unneeded redrawing - even when you overlap/move like 3 nodes, all of the diagram gets redrawn every time.

Do you have any tricks up your sleeve for this?

cheers

Happy new year! VirtualizingDiagram won't help you much if you display the nodes stacked and all of them are visible on screen. You will see improvement only if you disperse the nodes to enable scrolling.

I am not seeing any delay with 250 ShapeNodes in a Diagram though, perhaps the nodes you are using produce a large WPF visual tree that takes a lot of time to render?

I hope that helps,
Stoyan

well my 150sh nodes overlap in Z and although they are a simple linear view tree the whole diagram causes render redraw when you as much as change the Z overlap of 2 nodes.

It seems the overlap in Z and changes in Z order no matter how slight, cause huge redraws all the time and so is the rendering time immense...