Overlapping compound nodes

Issue type

Feature request

Environment info

• Cytoscape.js version :
• Browser/Node.js & version :

Description of new feature

I would like to have nodes with multiple parents, i.e., intersecting compound nodes.

Motivation for new feature

I am creating a graph editor for bayesian nets (template notations) in cytoscape.js. In the template notation sometimes I need to have a node with two parents. Like the graph in the picture.

The picture is taken from: https://github.com/jluttine/tikz-bayesnet

[ghamarian]

I think the change I suggested cannot be done with an extension as it required a change to the data structure, i.e. parent. This was about 10 lines of code change in total. But if that’s your decision not to support it, then so be it. Thanks for the nice library btw.

And here is the commit of changes: https://github.com/ghamarian/newcyto/commit/202644f2ecf07e58997db8e1ad800211ad5bf10c

[maxkfranz]

Take a look at https://github.com/upsetjs/cytoscape.js-bubblesets. @sgratzl may be interested in collaboration.

The main paper I’m aware of on this topic is Bubble Clusters: An Interface for Manipulating Spatial Aggregation of Graphical Objects by Watanabe et al.

https://www-ui.is.s.u-tokyo.ac.jp/~takeo/research/bubble/index.html

The video on the U Tokyo website is very compelling

(N.b. using a compound-like node (rectangles) for sets may not be the best idea – consider layout and visual overlap.)