CODEWITHSUNDEEP
graphchildrenvis.js-networkvis.js
Ansjovis86
Ansjovis86

Reputation: 1545

Vis.js - Get children of node

I've created a hierarchical directed graph in Vis.js. Now, I want to extract the parents from a given node. How do I do this? I couldn't find a method in the documentation that allowed me to do this.

Upvotes: 3

Views: 2269

Answers (2)

AlexM
AlexM

Reputation: 1183

As TERMIN had said, vis.Network() objects have a method getConnectedNodes for this purpose (documentation). You don't need to use the getPosition method to differentiate children from parent nodes though, as TERMIN had said, because getConnectedNodes has an optional input for the edge direction that would cover this.

If your vis.Network() object is named network, then try:

var myNode = 'desired node ID',
    arrayOfParents = network.getConnectedNodes(myNode, 'from')

Upvotes: 5

TERMIN
TERMIN

Reputation: 862

Use the getConnectedNodes method to get the connected nodes (parents and children).

Get the positions of the nodes using getPosition method.

Run over the connected nodes and see which node has y position smaller then the current node y position. This node should be the parent.

Same for all other found parents.

Upvotes: 0

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