Appearance
Halo
This example shows how to use the halo attribute to display a halo around a node. Halos are always drawn underneath other elements, unlike strokes.
ts
import Ogma from '@linkurious/ogma';
const ogma = new Ogma({
container: 'graph-container'
});
const centralNodes = new Set([5, 6, 10, 9]);
ogma.styles.addNodeRule({
halo: node => {
if (centralNodes.has(+node.getId()))
return {
color: '#e4ebea', // 'white',
width: 30,
strokeColor: '#ccc'
// strokeColor: '#EA5565'
};
}
});
ogma.generate
.grid({
rows: 4,
columns: 4
})
.then(graph => ogma.setGraph(graph))
.then(() => ogma.layouts.force({ locate: true, duration: 0, gravity: 0.1 }));
ogma.setOptions({ backgroundColor: null /*'#1E1D32' */ });
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;
}