It seems like the bound update of compound nodes during iterations are not calculated correctly, when NODE_DIMENSIONS_INCLUDE_LABELS constant are set to true. The layout extensions like cose-bilkent and fcose also give label width and height incorrectly to the layout-base. A few buggy examples on a test over cose-bilkent layout:

Some of the layout options should be able to be specified on a per-element basis, rather than a graph-wide basis. For example, the edge length should be able to be specified as a function(edge) : double in order to create an edge-weighted result (i.e. the edge length varies by score).

I think that this feature may have existed before in COSE, but it may have been lost during the refactoring into layout-base and cose-base.

The following options should allow for functions:

• nodeRepulsion : function(node) : double
• idealEdgeLength : function(edge) : double
• edgeElasticity : function(edge) : double

What are your thoughts, @ugurdogrusoz?

I assume that making the change within this project would enable the function options within any of the COSE family of layouts, which is why I'm filing the issue here.

I'm tagging @chrtannus, as he's interested in this topic.