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javascript-堆积的D3JS气泡图

作者:互联网

嘿,我将D3JS用作图表库,我真的很想利用Bubble Chart中的炫酷功能.在主要的D3JS图表站点上,以下气泡图用于比较两组数据:

Bubble Chart.

我想知道是否有人对如何创建这样的气泡图有任何想法,我正在努力使用大小变量使它过去.

我只是真的想能够比较两组数据,例如:

主机名(45,955,158)VS活动站点(21,335,629)

我正在使用的代码如下,我使用JSON检索数据,涉及js时我是一个主要的新手,因此,这个jQuery库非常感谢您的帮助.

index.html

<div class="four columns browserstats2003">
            <h3>Browser Stats 2003</h3>

        </div>        
    <div class="four columns mobilephonestats">
       <h3>Smartphone Sales 2003</h3>
       <p>The first smartphone had not been released in 2003.</p>
               <div id=""></div>


    </div>

mobile.json

{
 "name": "flare",
 "children": [
  {
   "name": "analytics",
   "children": [
    {
     "name": "cluster",
     "children": [
      {"name": "Smartphone Sales", "size": 11111},
  {"name": "Smartphone Salesa", "size": 2111}
     ]
    }
   ]
  }
 ]
}

js / js.js
// JavaScript文档

$(document).ready(function () {

        //  2003 bubble chart
            var diameter = 360,
                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(".mobilephonestats").append("svg")
                .attr("width", diameter)
                .attr("height", diameter)
                .attr("class", "bubble");

            d3.json("mobile.json", function(error, root) {
              var node = svg.selectAll(".node")
                  .data(bubble.nodes(classes(root))
                  .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); });

              node.append("text")
                  .attr("dy", ".3em")
                  .style("text-anchor", "middle")
                  .text(function(d) { return d.className.substring(0, d.r / 3); });
            });

            // 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");

// end bubble year 

        });

解决方法:

example you provided中,他肯定使用了力的布局,这比您使用的气泡图要复杂一些.您必须考虑诸如碰撞和动画之类的事情.

为什么不看看the JavaScript he used来生成它呢?

Jim Vallandingham在Bubble Clouds上写了一篇详尽的教程,这应该使您入门.

为了在cirlce的中间创建拆分,作为进行某种形式的数据比较的一种方式,“剪切路径”是前进的方法:

>附加两个圆圈,每个数据集一个.
>附加两个剪切路径,每个数据集一个
>将矩形附加到每个剪切路径.
>设置矩形x属性和宽度,以定义拆分在中间的位置.这必须是数据的函数.
>裁剪矩形和圆形

这是代码:

var nodeEnter = node.enter().append("a")
      .attr("class", "g-node")
      .call(force.drag);

  var democratEnter = nodeEnter.append("g")
      .attr("class", "g-democrat");

  democratEnter.append("clipPath") // clip-path to crop the rectangle
      .attr("id", function(d) { return "g-clip-democrat-" + d.id; })
    .append("rect");

  democratEnter.append("circle");

  var republicanEnter = nodeEnter.append("g")
      .attr("class", "g-republican");

  republicanEnter.append("clipPath") // Clip-path to crop the rectangle
     .attr("id", function(d) { return "g-clip-republican-" + d.id; })
     .append("rect");

  republicanEnter.append("circle");

  node.selectAll("rect")
      .attr("y", function(d) { return -d.r - clipPadding; })
      .attr("height", function(d) { return 2 * d.r + 2 * clipPadding; });

  // Defining the x-attr and width of the rectangle, which effectively splits the circle
  node.select(".g-democrat rect")
      .attr("x", function(d) { return -d.r - clipPadding; }) 
      .attr("width", function(d) { return 2 * d.r * d.k + clipPadding; });

  node.select(".g-republican rect")
      .attr("x", function(d) { return -d.r + 2 * d.r * d.k; })
      .attr("width", function(d) { return 2 * d.r; });

  // Setting the clip-path to crop the circles
  node.select(".g-democrat circle")
      .attr("clip-path", function(d) { return d.k < 1 ? "url(#g-clip-democrat-" + d.id + ")" : null; });

  node.select(".g-republican circle")
      .attr("clip-path", function(d) { return d.k > 0 ? "url(#g-clip-republican-" + d.id + ")" : null; });

这应该生成如下内容:

<g class="g-democrat">
    <clipPath id="g-clip-democrat-43">
        <rect y="-63.36487389363757" height="126.72974778727514" x="-63.36487389363757" width="59.449375597303515">
        </rect>
    </clipPath>
    <circle clip-path="url(#g-clip-democrat-43)" r="59.36487389363757">
</circle></g>
<g class="g-republican">
    <clipPath id="g-clip-republican-43">
        <rect y="-63.36487389363757" height="126.72974778727514" x="-3.915498296334057" width="118.72974778727514">
        </rect>
    </clipPath>
    <circle clip-path="url(#g-clip-republican-43)" r="59.36487389363757">
</circle></g>

标签:d3-js,circle-pack,json,javascript
来源: https://codeday.me/bug/20191122/2059340.html