Radius

This example shows how to use the radius attribute to change the size of a node.

index.tsindex.htmlstyles.css

import Ogma from '@linkurious/ogma';

const ogma = new Ogma({
  container: 'graph-container'
});

// Specify a random size for each node.
ogma.styles.addNodeRule({
  radius: n => 5 + (+n.getId() % 10)
});

// Generate a random graph.
ogma.generate
  .random({ nodes: 20, edges: 0 })
  // Assign the graph to Ogma.
  .then(graph => ogma.setGraph(graph))
  .then(() => ogma.layouts.force({ locate: true, duration: 0 }))
  .then(() => {
    // Change the size of a single node and its color to purple.
    ogma.getNode('0')!.setAttributes({ radius: 5, color: 'purple' });

    // Change the size of two nodes and their color to orange.
    ogma.getNodes(['1', '2']).setAttributes({ radius: 8, color: 'orange' });
  });

html

<!doctype html>
<html>
  <head>
    <meta charset="utf-8" />

    <link type="text/css" rel="stylesheet" href="styles.css" />
  </head>

  <body>
    <div id="graph-container"></div>
    <script type="module" src="index.ts"></script>
  </body>
</html>

css

#graph-container {
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  position: absolute;
  margin: 0;
  overflow: hidden;
}

Radius ​

Radius