在 vis javascript 库中，如何从节点 ID 获取节点？
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In the vis javascript library, how do I get the node from its node Id?
提问by srayner
So I create the nodes like this...
所以我创建了这样的节点......
var nodes = new vis.DataSet([
{id: 1, label: 'Peter'},
{id: 2, label: 'John'},
{id: 3, label: 'Sally'},
]);
then later on in an event handler after clicking on a node I get the id of the node i clicked. How do I get node object from its id?
然后在单击节点后的事件处理程序中，我得到我单击的节点的 id。如何从其 id 中获取节点对象？
回答by srayner
I actually found the documentation here; http://visjs.org/docs/data/dataset.html
我实际上在这里找到了文档；http://visjs.org/docs/data/dataset.html
node = nodes.get(nodeId);
回答by mike
I had trouble getting refrence to the node object. nound it in Network.body
我无法引用节点对象。把它放进去Network.body
network.on('click', function (properties) {
var nodeID = properties.nodes[0];
if (nodeID) {
var clickedNode = this.body.nodes[nodeID];
console.log('clicked node:', clickedNode.options.label);
console.log('pointer', properties.pointer);
}
});
回答by Francesco
I'm using my own function to get all node objects, but you need to make the 'network' variable as global. For example:
我正在使用自己的函数来获取所有节点对象，但您需要将“网络”变量设为全局变量。例如：
function getNode(nodeId){
var nodeObj= network.body.data.nodes._data[nodeId];
return nodeObj; //nodeObj.label to get label
}
