Check interplay of LayerConstraint and InteractiveLayering

[uruuru]

There seems to be an issue where the interactive layering strategy breaks layer constraints. The first step to solve this issue would be to precisely identify the problem.

[le-cds]

I actually haven't seen the issue since, so I'm closing this.

[protogenes]

An UnsupportedConfigurationException occurs when the interactive cycle breaker reverses edges on a node with layer constraint. For now I'm just omitting the layer constraints when doing an incremental/interactive layout.

algorithm: layered
cycleBreaking.strategy: INTERACTIVE
layering.strategy: INTERACTIVE

node n1 {
    layout [position: 100, 0]
    layering.layerConstraint: FIRST_SEPARATE
}
node n2 {
    layout [position: 0, 0]
}

edge n1 -> n2