Style

This example shows how to use the style attribute to change the style of the text on nodes and edges.

index.tsindex.htmlstyles.css

import Ogma from '@linkurious/ogma';

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

ogma.styles.addNodeRule({
  text: {
    style: 'bold',
    minVisibleSize: 5,
    content: n => 'Node ' + n.getId()
  }
});

ogma.styles.addEdgeRule({
  text: {
    // style: 'none', // not necessary here
    minVisibleSize: 1,
    style: 'italic',
    content: e => 'Edge ' + e.getId()
  }
});

ogma.styles.setHoveredEdgeAttributes({ text: { style: 'italic' } });
ogma.styles.setSelectedEdgeAttributes({ text: { style: 'bold' } });

const graph = await ogma.generate.grid({
  columns: 2,
  rows: 2
});
await ogma.setGraph(graph);
await ogma.view.locateGraph();

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;
}

Style ​

Style