Position objects while in layout

GoDiagram (6 and previous)
1

Hi,

Can i force a position of a certain object while its beeing layout?
thanks,
Adi
2

With regard to specifying an absolute position of a node, without fixing the positions of other nodes, it depends on which GoLayout you are using.

For force-directed, yes: set GoLayoutForceDirectedNode.IsFixed = true.

For tree, yes for the root nodes: set GoLayoutTree.Arrangement = GoLayoutTreeArrangement.FixedRoots.

For layered-digraph, no.

3

I’m using the layered digraph and my problem is that even if all the objects inside a gosubgraph are symmetric (the same) i don’t get them arranged in the middle of the subgraph. i thought that forcing the position of the first object will help the links look better.

4

Layered digraph tends to do upper left rather than centering… which is why you are centering the main diagram after a layout. You could do the same thing in the subgraphs… after the layout, find each subgraph, compute the width of the objects within the subgraph and then slide them over 1/2 the width of the space in the subgraph. (you can use GoView.MoveSelection on the collection of objects in the subgraph).