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Home » Modeling » Eclipse Layout Kernel » Crossing minimaization whilst preventing excess node re location ?
Crossing minimaization whilst preventing excess node re location ? [message #1832297] Tue, 15 September 2020 16:05 Go to next message
Jonathan Menzies is currently offline Jonathan MenziesFriend
Messages: 60
Registered: May 2020
Location: California
Hi there,

We are using ELK with Sirius to layout our diagrams.

With the settings below we minimize crossing:

setProperty(LayeredOptions.CROSSING_MINIMIZATION_STRATEGY, CrossingMinimizationStrategy.INTERACTIVE);
topNode.setProperty(LayeredOptions.CROSSING_MINIMIZATION_SEMI_INTERACTIVE, true);

However in certain case this results in crossing because it won't reposition the node. If we use the setting Layer_SWEEP, it results in nodes being re positioned where not necessary.

Is it possible to achieve a middle ground here where it will re position to avoid crossing but keep their position if no crossing would occur ?

Many Thanks
Re: Crossing minimaization whilst preventing excess node re location ? [message #1850373 is a reply to message #1832297] Mon, 28 February 2022 07:49 Go to previous message
Sören Domrös is currently offline Sören DomrösFriend
Messages: 14
Registered: June 2021
Junior Member
This might be a little late, however, you can try to use the considerModelOrder options.
This tries to use the order of the model (here a textual one) to do crossing minimization. If the order is indeed crossing minimal it will be taken. If it is not a better solution might be taken. For details please look here.

With the next ELK release (0.8.0 probably) it should also be possible to do cycle breaking by model order.
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