@H_404_1@我已经寻找答案,但是没有一个类似的问题帮助我在我的情况.我有一个D3树,在运行时创建新的节点.当我将鼠标悬停在该特定节点上时,我想添加
HTML(所以我可以格式化)到一个节点.现在我可以添加HTML而不是格式化.请帮忙!
JSFiddle:http://jsfiddle.net/Srx7z/
JS代码:
var width = 960,height = 500; var tree = d3.layout.tree() .size([width - 20,height - 60]); var root = {},nodes = tree(root); root.parent = root; root.px = root.x; root.py = root.y; var diagonal = d3.svg.diagonal(); var svg = d3.select("body").append("svg") .attr("width",width) .attr("height",height) .append("g") .attr("transform","translate(-30,40)"); var node = svg.selectAll(".node"),link = svg.selectAll(".link"); var duration = 750; $("#submit_button").click(function() { update(); }); function update() { if (nodes.length >= 500) return clearInterval(timer); // Add a new node to a random parent. var n = {id: nodes.length},p = nodes[Math.random() * nodes.length | 0]; if (p.children) p.children.push(n); else p.children = [n]; nodes.push(n); // Recompute the layout and data join. node = node.data(tree.nodes(root),function (d) { return d.id; }); link = link.data(tree.links(nodes),function (d) { return d.source.id + "-" + d.target.id; }); // Add entering nodes in the parent’s old position. var gelement = node.enter().append("g"); gelement.append("circle") .attr("class","node") .attr("r",20) .attr("cx",function (d) { return d.parent.px; }) .attr("cy",function (d) { return d.parent.py; }); // Add entering links in the parent’s old position. link.enter().insert("path",".g.node") .attr("class","link") .attr("d",function (d) { var o = {x: d.source.px,y: d.source.py}; return diagonal({source: o,target: o}); }) .attr('pointer-events','none'); node.on("mouSEOver",function (d) { var g = d3.select(this); g.append("text").html('First Line <br> Second Line') .classed('info',true) .attr("x",function (d) { return (d.x+20); }) .attr("y",function (d) { return (d.y); }) .attr('pointer-events','none'); }); node.on("mouSEOut",function (d) { d3.select(this).select('text.info').remove(); }); // Transition nodes and links to their new positions. var t = svg.transition() .duration(duration); t.selectAll(".link") .attr("d",diagonal); t.selectAll(".node") .attr("cx",function (d) { return d.px = d.x; }) .attr("cy",function (d) { return d.py = d.y; }); }
解决方法
使用Lars Kotthoff的出色方向,我得到它的工作,所以我决定发布给别人和我自己的参考:
附加以下代码:
node.on("mouSEOver",function (d) { var g = d3.select(this); // The node var div = d3.select("body").append("div") .attr('pointer-events','none') .attr("class","tooltip") .style("opacity",1) .html("FIRST LINE <br> SECOND LINE") .style("left",(d.x + 50 + "px")) .style("top",(d.y +"px")); });