I am currently using a LayeredDigraphLayout to do the following, but I have a problem with the spacing between the nodes. I would like the spacing to be different depending of the link, I don't want the LayerSpacing to be the same for all the links.
The first should have a spacing of 20, the second one 100 and the third one 75 for example.
Override LayeredDigraphLayout.NodeMinLayerSpace to control how much space a given node/vertex takes.
Here’s the default definition:
protected virtual double NodeMinLayerSpace(LayeredDigraphVertex v, bool topleft) {
if (v.Node == null) return 0;
Rect r = v.Bounds;
Point p = v.Focus;
if (this.Direction == 90 || this.Direction == 270) {
if (topleft)
return p.Y+10;
else
return r.Height-p.Y+10;
} else {
if (topleft)
return p.X+10;
else
return r.Width-p.X+10;
}
}
If you set also set LayerSpacing to zero, you can completely control how much space is taken by each node, on each side of the node.
I got another question concerning NodeMinLayerSpace. I don't understand very well how the topleft boolean works and why each node has to loop two times in this method to get the spacing. Would it be ok if I put 0 to the second return and only specify the spacing on the first return as the following code shows ? or would it have some kind of impact in the diagram?
