Appearance
Shape
This example shows how to use the shape attribute to change the shape of edges in a graph. It consists of four keys: head
, tail
, body
and style
.
ts
import Ogma, {
RawGraph,
EdgeStyle,
EdgeExtremity,
EdgeType
} from '@linkurious/ogma';
const TYPE: EdgeType[] = ['line', 'triangle'];
const STYLE: EdgeStyle[] = ['plain', 'dashed'];
const HEAD: EdgeExtremity[] = [null, 'arrow'];
const TAIL: EdgeExtremity[] = [null, 'arrow'];
const ogma = new Ogma({
container: 'graph-container'
});
ogma.styles.addEdgeRule({
shape: {
body: () => TYPE[(Math.random() * TYPE.length) | 0],
style: () => STYLE[(Math.random() * STYLE.length) | 0],
head: () => HEAD[(Math.random() * HEAD.length) | 0],
tail: () => TAIL[(Math.random() * TAIL.length) | 0]
}
});
const graph = await ogma.generate.grid({ rows: 4, columns: 4 });
graph.nodes.forEach(node => {
node.attributes!.radius = 1;
});
graph.edges.push({ source: '5', target: '6' }, { source: '9', target: '10' });
await ogma.setGraph(graph);
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;
}