PNG

This example uses the PNG export API to export the graph data as a PNG file.

index.tsindex.htmlstyles.css

import Ogma from '@linkurious/ogma';

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

function getRandomHexColor() {
  return '#' + Math.floor(Math.random() * 16777215).toString(16);
}

ogma.styles.addNodeRule({
  text: { minVisibleSize: 0, content: n => n.getId() },
  color: getRandomHexColor
});

const graph = await ogma.generate.random({ nodes: 20, edges: 30 });
await ogma.setGraph(graph);
await ogma.layouts.force({ locate: true, duration: 0 });
await ogma.export
  .png({
    download: false
  })
  .then(dataURL => {
    // Preview image
    if (dataURL) {
      const img = document.createElement('img');
      img.src = dataURL;
      document.body.appendChild(img);
    }
  });

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>
    <hr />
    &darr;
    <br />
    <script type="module" src="index.ts"></script>
  </body>
</html>

css

#graph-container,
img {
  height: 300px;
}

body {
  text-align: center;
}

PNG ​

PNG