D3.js d3气泡图-更新实时数据

我用的是d3气泡图

在这个插件中，当我点击圆圈时，需要渲染特定圆圈内容的数据

我在下面添加了mycodebellow：

数据1：

var data1 = '{ "name": "flare", "children": [ { "name": "rcccccccccc", "children": [ { "name": "rrrrrrrrrrrrrrrR", "size": 1000 } ] }, { "name": "crcccccccccc", "children": [ { "name": "crrrrrrrrrrrrrrrR", "size": 4116 } ] }, { "name": "c", "children": [ { "name": "rrrrrrrrrrrrrrrRc", "children": [ { "name": "CC", "size": 6703 } ] } ] }, { "name": "rccccccccccz", "children": [ { "name": "zrrrrrrrrrrrrrrrR", "size": 6703 } ] } ] }';

单击圆渲染数据2后：

 var data2 = '{ "name": "flare", "children": [ { "name": "1111111", 
"children": [ { "name": "11111111", "size": 1000 } ] }, { "name": "1111111", "children": [ { "name": "zzzzzzzzzzz", "size": 4116 } ] }, { "name": "c", "children": [ { "name": "zzzzzzzzzzz", "children": [ { "name": "CC", "size": 6703 } ] } ] }, { "name": "zzzzzzzzzzz", "children": [ { "name": "zzzzzzzzzzz", "size": 6703 } ] } ] }';

代码：

单击圆圈时，需要更新现有圆圈中的新数据（data2）

---

我在JSFIDLE中添加了代码

在代码中，插入新数据强制更新时没有删除旧数据

这里是一个快速工作的代码

var data1json = '{ "name": "flare", "children": [ { "name": "rcccccccccc", "children": [ { "name": "rrrrrrrrrrrrrrrR", "size": 1000 } ] }, { "name": "crcccccccccc", "children": [ { "name": "crrrrrrrrrrrrrrrR", "size": 4116 } ] }, { "name": "c", "children": [ { "name": "rrrrrrrrrrrrrrrRc", "children": [ { "name": "CC", "size": 6703 } ] } ] }, { "name": "rccccccccccz", "children": [ { "name": "zrrrrrrrrrrrrrrrR", "size": 6703 } ] } ] }';
var data1 = JSON.parse(data1json);
var data2json = '{ "name": "flare2", "children": [ { "name": "test", "children": [ { "name": "11111111", "size": 1000 } ] }, { "name": "test1", "children": [ { "name": "test2", "size": 4116 } ] }, { "name": "test3", "children": [ { "name": "zzzzzzzzzzz", "children": [ { "name": "test4", "size": 6703 } ] } ] }, { "name": "test5", "children": [ { "name": "test6", "size": 6703 } ] } ] }';
var data2 = JSON.parse(data2json);
console.log(data2)
var diameter = 960,
    format = d3.format(",d"),
    color = d3.scale.category20c();

var bubble = d3.layout.pack()
    .sort(null)
    .size([diameter, diameter])
    .padding(1.5);

var svg = d3.select("body").append("svg")
    .attr("width", diameter)
    .attr("height", diameter)
    .attr("class", "bubble");

    update(data1);
// Returns a flattened hierarchy containing all leaf nodes under the root.
function classes(root) {
  var classes = [];
  function recurse(name, node) {
    if (node.children) node.children.forEach(function(child) { recurse(node.name, child); });
    else classes.push({packageName: name, className: node.name, value: node.size});
  }

  recurse(null, root);
  return {children: classes};
}

d3.select(self.frameElement).style("height", diameter + "px");
function update (data){
  svg.selectAll(".node").remove();
  var node = svg.selectAll(".node")
      .data(bubble.nodes(classes(data))
      .filter(function(d) { return !d.children; }))
      .enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
  node.append("title")
      .text(function(d) { return d.className + ": " + format(d.value); });
  node.append("circle")
      .attr("r", function(d) { return d.r; })
      .style("fill", function(d) { return color(d.packageName); })
      .on("click", function(d) {
      alert('update');
      console.log(data2);
      update(data2);
        });
  node.append("text")
      .attr("dy", ".1em")
      .style("text-anchor", "middle")
      //.text(function(d) { return d.className.substring(0, d.r / 3); });
      .text(function(d) { return d.className.substring(0, d.r / 3); });
}

---

这里是对应的Fiddle:

您所指的库利用了转换和延迟。请阅读这里的教程快速示例代码：node.append（“text”）.attr（“dy”，“.1em”）.style（“text anchor”，“middle”）.transition（）.delay（100）.text（函数（d）{返回d.className.substring（0，d.r/3）；}）；

var data1json = '{ "name": "flare", "children": [ { "name": "rcccccccccc", "children": [ { "name": "rrrrrrrrrrrrrrrR", "size": 1000 } ] }, { "name": "crcccccccccc", "children": [ { "name": "crrrrrrrrrrrrrrrR", "size": 4116 } ] }, { "name": "c", "children": [ { "name": "rrrrrrrrrrrrrrrRc", "children": [ { "name": "CC", "size": 6703 } ] } ] }, { "name": "rccccccccccz", "children": [ { "name": "zrrrrrrrrrrrrrrrR", "size": 6703 } ] } ] }';
var data1 = JSON.parse(data1json);
var data2json = '{ "name": "flare2", "children": [ { "name": "test", "children": [ { "name": "11111111", "size": 1000 } ] }, { "name": "test1", "children": [ { "name": "test2", "size": 4116 } ] }, { "name": "test3", "children": [ { "name": "zzzzzzzzzzz", "children": [ { "name": "test4", "size": 6703 } ] } ] }, { "name": "test5", "children": [ { "name": "test6", "size": 6703 } ] } ] }';
var data2 = JSON.parse(data2json);
console.log(data2)
var diameter = 960,
    format = d3.format(",d"),
    color = d3.scale.category20c();

var bubble = d3.layout.pack()
    .sort(null)
    .size([diameter, diameter])
    .padding(1.5);

var svg = d3.select("body").append("svg")
    .attr("width", diameter)
    .attr("height", diameter)
    .attr("class", "bubble");

    update(data1);
// Returns a flattened hierarchy containing all leaf nodes under the root.
function classes(root) {
  var classes = [];
  function recurse(name, node) {
    if (node.children) node.children.forEach(function(child) { recurse(node.name, child); });
    else classes.push({packageName: name, className: node.name, value: node.size});
  }

  recurse(null, root);
  return {children: classes};
}

d3.select(self.frameElement).style("height", diameter + "px");
function update (data){
  svg.selectAll(".node").remove();
  var node = svg.selectAll(".node")
      .data(bubble.nodes(classes(data))
      .filter(function(d) { return !d.children; }))
      .enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
  node.append("title")
      .text(function(d) { return d.className + ": " + format(d.value); });
  node.append("circle")
      .attr("r", function(d) { return d.r; })
      .style("fill", function(d) { return color(d.packageName); })
      .on("click", function(d) {
      alert('update');
      console.log(data2);
      update(data2);
        });
  node.append("text")
      .attr("dy", ".1em")
      .style("text-anchor", "middle")
      //.text(function(d) { return d.className.substring(0, d.r / 3); });
      .text(function(d) { return d.className.substring(0, d.r / 3); });
}