是,您可以在Cytoscape.js中创建双向边。首先,边缘的曲线样式应与“干草堆”(在下面将其设置为“直线”)不同,因为“干草堆”不支持边缘端点箭头。其次,您需要指定源和目标端点箭头形状。箭头形状的可能值在here中列出(我在下面使用了“ triangle-backcurve”)。如果需要一个方向性边缘,则只能为源或目标设置箭头形状。
var cy = window.cy = cytoscape({
container: document.getElementById('cy'),
style: [{
selector: 'node',
css: {
'content': 'data(id)',
'text-valign': 'center',
'text-halign': 'center'
}
},
{
selector: 'edge',
css: {
'curve-style': 'straight',
}
}
],
elements: {
nodes: [{
data: {
id: 'n0'
}
},
{
data: {
id: 'n1'
}
},
{
data: {
id: 'n2'
}
},
{
data: {
id: 'n3'
}
}
],
edges: [{
data: {
id: 'n0n1',
source: 'n0',
target: 'n1'
}
},
{
data: {
id: 'n1n2',
source: 'n1',
target: 'n2'
}
},
{
data: {
id: 'n2n3',
source: 'n2',
target: 'n3'
}
}
]
}
});
cy.layout({name: 'preset'}).run();
cy.getElementById('n0n1').style({'source-arrow-shape': 'triangle-backcurve', 'target-arrow-shape': 'triangle-backcurve'});
cy.getElementById('n1n2').style({'target-arrow-shape': 'triangle-backcurve'});
cy.getElementById('n2n3').style({'source-arrow-shape': 'triangle-backcurve'});
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 95%;
width: 95%;
left: 0;
top: 0;
position: absolute;
}
<html>
<head>
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<script src="https://unpkg.com/[email protected]/dist/cytoscape.min.js">
</script>
</head>
<body>
<div id="cy"></div>
</body>
</html>