CODEWITHSUNDEEP
javascriptcytoscape.jscytoscape
Waldorf
Waldorf

Reputation: 33

undo remove nodes operation in Cytoscape JS

When you remove nodes in cytoscape JS (using cy.remove()), the edges attached to these nodes are also deleted from the graph. The description for cy.remove() says it removes elements from the graph and returns them. However, the data that is returned does not include the deleted edges.

As a consequence the following sequence of operations

removedData = cy.remove(someNodes); cy.add(removedData);

do modify the graph, as they could cause some edges to disappear.

How should you perform a reversible removal operation in Cytoscape JS?

Upvotes: 3

Views: 3019

Answers (2)

Craig
Craig

Reputation: 8294

With CytoscapeJS 2.5.4 I can run the following and the connected nodes are removed and restored

removedData = cy.remove("#node2");

--pause--

removedDate.restore();

Upvotes: 0

Suzanne Paley
Suzanne Paley

Reputation: 192

You could just include the edges explicitly:

removedData = cy.remove(someNodes.union(someNodes.connectedEdges()));

Then both removedData.restore() and cy.add(removedData) will restore both nodes and edges.

Upvotes: 5

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