Cytoscape extension to help prevent overlap of nodes

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1.0.15 years ago5 years agoMinified + gzip package size for cytoscape-no-overlap in KB




Cytoscape extension to help prevent overlap of nodes on dragging (demo)


Cytoscape.js ^3.2.0

Usage instructions

Download the library:
via npm: npm install cytoscape-no-overlap, via bower: bower install cytoscape-no-overlap, or via direct download in the repository (probably from a tag).
Import the library as appropriate for your project:
ES import:
import cytoscape from 'cytoscape';
import noOverlap from 'cytoscape-no-overlap';

cytoscape.use( noOverlap );

CommonJS require:
let cytoscape = require('cytoscape');
let noOverlap = require('cytoscape-no-overlap');

cytoscape.use( noOverlap ); // register extension

require(['cytoscape', 'cytoscape-no-overlap'], function( cytoscape, noOverlap ){
  noOverlap( cytoscape ); // register extension

Plain HTML/JS has the extension registered for you automatically, because no require() is needed.


The extension takes an object with one property called padding which is the amount of pixels between the nodes (default = 0).
example: cy.nodes().noOverlap({ padding: 5 });

Build targets

  • npm run test : Run Mocha tests in ./test
  • npm run build : Build ./src/** into cytoscape-no-overlap.js
  • npm run watch : Automatically build on changes with live reloading (N.b. you must already have an HTTP server running)
  • npm run dev : Automatically build on changes with live reloading with webpack dev server
  • npm run lint : Run eslint on the source

N.b. all builds use babel, so modern ES features can be used in the src.

Publishing instructions

This project is set up to automatically be published to npm and bower. To publish:
  1. Build the extension : npm run build:release
  2. Commit the build : git commit -am "Build for release"
  3. Bump the version number and tag: npm version major|minor|patch
  4. Push to origin: git push && git push --tags
  5. Publish to npm: npm publish .
  6. If publishing to bower for the first time, you'll need to run bower register cytoscape-no-overlap
  7. Make a new release for Zenodo.