I'm trying to start using the AutoAlignNodes and it works fine. I have added temporarily disabling it when pressing Alt key so that's OK.

Now here's my issue: On our diagrams each object is a group of nodes and the auto align is kicking in for all nodes (even the ones that are locked in the group) which makes the feature quite difficult to use. So how can I:

- exclude completely some nodes from being looked at by the algorithm (that would be the case for some locked nodes that we use as indicators icons next to the main node,
- selectively exclude some nodes based on teh selected node. This is needed because in our diagrams the label (text) of the main object is a node that the user can move. So the behaviour would be as follows: when moving a main node only try to snap to other main nodes, when moving the subordinate label node allow snaping to any node (but the locked ones) as the user can be then then trying to align the text.

This version adds a QueryAlignTarget event to let you filter out some nodes as alignment guide targets:

https://mindfusion.eu/_beta/fcnet_aligntarget.zip

Set e.Cancel = true when you want to ignore a node. If that depends on the current node being modified, you can access it via diagram.Interaction.CurrentItem.

I hope that helps,
Stoyan