我正在尝试创建具有多种颜色的边缘，但不知道如何进行。 理想情况下，链接的每一半都将独立更新其颜色。
想知道这是否可行。 多谢 :)
最佳答案
看起来确实是这样!检查https://js.cytoscape.org/#style/edge-line和 https://js.cytoscape.org/#style/gradient 。
策略是将线渐变分解为颜色停止位置，每个位置都有一个关联的颜色，如下所示:
var cy = (window.cy = cytoscape({
container: document.getElementById("cy"),
boxSelectionEnabled: false,
autounselectify: true,
style: [{
selector: "node",
css: {
"label": "data(id)",
"text-valign": "center",
"text-halign": "center",
"background-color": "data(faveColor)"
}
},
{
selector: "edge",
css: {
"line-fill": "radial-gradient",
"line-gradient-stop-colors": "red green blue",
"line-gradient-stop-positions": "25 50 75"
}
}
],
elements: {
nodes: [{
data: {
id: "a",
faveColor: "#2763c4"
}
},
{
data: {
id: "b",
faveColor: "#37a32d"
}
},
{
data: {
id: "c",
faveColor: "#37a32d"
}
}
],
edges: [{
data: {
source: "a",
target: "b"
}
},
{
data: {
source: "a",
target: "c"
}
}
]
},
layout: {
name: "dagre"
}
}));
cy.ready(function() {
cy.dblclick();
});
var nid = 0;
cy.bind('dblclick', function(evt) {
console.log('dblclick');
cy.add({
group: 'nodes',
data: {
id: nid,
faveColor: 'red'
},
position: {
x: evt.x,
y: evt.y
}
});
nid++;
});
cy.bind('click', 'node', function(evt) {
console.log('node clicked: ', evt.target.id());
});body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
float: right;
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/<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4d2e3439223e2e2c3d280d7e637e637d" rel="noreferrer noopener nofollow">[email protected]</a>/dist/cytoscape.min.js">
</script>
<!-- cyposcape dagre -->
<script src="https://unpkg.com/<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="21454046534461110f160f15" rel="noreferrer noopener nofollow">[email protected]</a>/dist/dagre.js"></script>
<script src="https://cdn.rawgit.com/cytoscape/cytoscape.js-dagre/1.5.0/cytoscape-dagre.js"></script>
<script src="https://unpkg.com/cytoscape-dblclick/dist/index.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>关于javascript - cytoscape 中的边缘可以有多种颜色吗，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59350336/