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Drag nodes ​

integrations

This example shows how to use the nodesDragStart, nodesDragProgress and nodesDragEnd events.
Uncomment in the handlers to see the effect in your console.

ts
import Ogma from '@linkurious/ogma';

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

ogma.events.on('nodesDragStart', eventData => {
  console.log('start', eventData);
  // console.log('Starting drag nodes ' +
  // eventData.nodes.getId().join() +
  // ' at (' + eventData.x + ', ' + eventData.y + ')');
});

ogma.events.on('nodesDragProgress', eventData => {
  console.log('progress', eventData);
  // console.log('Dragging node ' + eventData.node.getId() +
  // ' to (' + eventData.x + ', ' + eventData.y + ')');
});

ogma.events.on('nodesDragEnd', eventData => {
  console.log('end', eventData);
  // console.log('Ending drag node ' + eventData.node.getId() +
  // ' at (' + eventData.x + ', ' + eventData.y + ')');
});

// Generate a random graph and assign it to Ogma.
ogma.generate
  .random({ nodes: 16, edges: 0 })
  .then(graph => ogma.setGraph(graph))
  .then(() => ogma.layouts.grid({ duration: 0, locate: true }));
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;
}