我想通过cytoscape.js在sample.png中单击nodeC时，更改将节点（nodeA-> nodeB和nodeB-> nodeC）连接到红色的边缘颜色。请帮我。
cy.on("tap", "node", (evt) => {evt.cyTarget.connectedEdges().animate({
style: {lineColor: "red"}}）}）`
当我使用此代码时，它更改了连接到单击节点的所有边的颜色。
Cytoscape.js提供了一些过滤节点的简洁功能：
var cy = (window.cy = cytoscape({
container: document.getElementById("cy"),
boxSelectionEnabled: false,
autounselectify: true,
style: [{
selector: "node",
css: {
content: "data(id)",
"text-valign": "center",
"text-halign": "center",
height: "60px",
width: "100px",
shape: "rectangle",
"background-color": "data(faveColor)"
}
},
{
selector: "edge",
css: {
"curve-style": "bezier",
"control-point-step-size": 40,
"target-arrow-shape": "triangle"
}
}
],
elements: {
nodes: [{
data: {
id: "Top",
faveColor: "#2763c4"
}
},
{
data: {
id: "yes",
faveColor: "#37a32d"
}
},
{
data: {
id: "no",
faveColor: "#2763c4"
}
},
{
data: {
id: "Third",
faveColor: "#2763c4"
}
},
{
data: {
id: "Fourth",
faveColor: "#56a9f7"
}
}
],
edges: [{
data: {
source: "Top",
target: "yes"
}
},
{
data: {
source: "Top",
target: "no"
}
},
{
data: {
source: "no",
target: "Third"
}
},
{
data: {
source: "Third",
target: "Fourth"
}
}
]
},
layout: {
name: "dagre"
}
}));
cy.unbind('click');
cy.bind('click', 'node', function(node) {
console.log(node.target.predecessors().edges());
node.target.predecessors().edges().animate({
style: {
lineColor: "red"
}
});
});body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
left: 0;
top: 0;
float: left;
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>
<!-- cyposcape dagre -->
<script src="https://unpkg.com/[email protected]/dist/dagre.js"></script>
<script src="https://cdn.rawgit.com/cytoscape/cytoscape.js-dagre/1.5.0/cytoscape-dagre.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>