Appearance
Hierarchical
This example shows how to use the hierarchical layout algorithm. The hierarchical layout is a layout algorithm that places the nodes in a hierarchy. It is useful for visualizing trees and DAGs.
ts
import Ogma from '@linkurious/ogma';
const ogma = new Ogma({
container: 'graph-container'
});
const graph = await ogma.generate.balancedTree({
children: 2,
height: 5
});
graph.nodes.forEach(node => {
node.attributes!.x = 0;
node.attributes!.y = 0;
});
await ogma.setGraph(graph);
// Run layout
await ogma.layouts.hierarchical({
direction: 'TB', // Direction of the layout. Can be TB, BT, LR, or RL,
// where T = top, B = bottom, L = left, and R = right.
duration: 300, // Duration of the animation
nodeDistance: 60, // Number of pixels that separate nodes horizontally in the layout.
levelDistance: 50, // Number of pixels between each layer in the layout.
locate: {
easing: 'linear',
duration: 300
}
});
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;
}