javascript - 无法确定我找到的示例代码的正确版本 D3

正如@Steve 提到的，d3.js 版本 2 中的示例，可以在 d3.js 下的资源侧边栏下找到

实际上有一个更简单的方法来获得工作示例：将光标放在框架上，右键单击并选择“查看框架源”。

_{（如果您使用其他浏览器，您仍然可以查看框架源 - 只是名称和显示方式会有所不同）}

您会得到类似于以下内容的内容 - 这是为框架提供动力的代码：

将整个代码复制并粘贴到 HTML 文件中，瞧！

编辑：如果您在查看源 HTML 页面中看到“页面不存在”，请尝试刷新 JSFiddle（或单击右键菜单上的“重新加载框架”）并再次单击“查看框架源”。

（JSFiddle 只允许非常短的时间窗口来执行“查看帧源”操作，因此请刷新并检查 -不要等待！）

你应该得到如下代码：

<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title></title>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <meta name="robots" content="noindex, nofollow">
  <meta name="googlebot" content="noindex, nofollow">
  <meta name="viewport" content="width=device-width, initial-scale=1">


  <script
    type="text/javascript"
    src="/js/lib/dummy.js"
    
  ></script>

    <link rel="stylesheet" type="text/css" href="/css/result-light.css">

      <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>

  <style id="compiled-css" type="text/css">
      path.link {
  fill: none;
  stroke: #666;
  stroke-width: 1.5px;
}

marker#licensing {
  fill: green;
}

path.link.licensing {
  stroke: green;
}

path.link.resolved {
  stroke-dasharray: 0,2 1;
}

circle {
  fill: #ccc;
  stroke: #333;
  stroke-width: 1.5px;
}

text {
  font: 10px sans-serif;
  pointer-events: none;
}

text.shadow {
  stroke: #fff;
  stroke-width: 3px;
  stroke-opacity: .8;
}
    /* EOS */
  </style>

  <script id="insert"></script>


    <script src="/js/stringify.js?fb85c6454dace8cae878a1cdbaa07f21be32cac6" charset="utf-8"></script>
    <script>
      const customConsole = (w) => {
        const pushToConsole = (payload, type) => {
          w.parent.postMessage({
            console: {
              payload: stringify(payload),
              type:    type
            }
          }, "*")
        }

        w.onerror = (message, url, line, column) => {
          // the line needs to correspond with the editor panel
          // unfortunately this number needs to be altered every time this view is changed
          line = line - 70
          if (line < 0){
            pushToConsole(message, "error")
          } else {
            pushToConsole(`[${line}:${column}] ${message}`, "error")
          }
        }

        let console = (function(systemConsole){
          return {
            log: function(){
              let args = Array.from(arguments)
              pushToConsole(args, "log")
              systemConsole.log.apply(this, args)
            },
            info: function(){
              let args = Array.from(arguments)
              pushToConsole(args, "info")
              systemConsole.info.apply(this, args)
            },
            warn: function(){
              let args = Array.from(arguments)
              pushToConsole(args, "warn")
              systemConsole.warn.apply(this, args)
            },
            error: function(){
              let args = Array.from(arguments)
              pushToConsole(args, "error")
              systemConsole.error.apply(this, args)
            },
            system: function(arg){
              pushToConsole(arg, "system")
            },
            clear: function(){
              systemConsole.clear.apply(this, {})
            },
            time: function(){
              let args = Array.from(arguments)
              systemConsole.time.apply(this, args)
            },
            assert: function(assertion, label){
              if (!assertion){
                pushToConsole(label, "log")
              }

              let args = Array.from(arguments)
              systemConsole.assert.apply(this, args)
            }
          }
        }(window.console))

        window.console = { ...window.console, ...console }

        console.system("Running fiddle")
      }

      if (window.parent){
        customConsole(window)
      }
    </script>
</head>
<body>
    <div id="chart"></div>

    <script type="text/javascript">//<![CDATA[


var links = [{source: "Microsoft", target: "Amazon", type: "licensing"},
             {source: "Microsoft", target: "Amazon", type: "suit"},
             {source: "Samsung", target: "Apple", type: "suit"},
             {source: "Microsoft", target: "Amazon", type: "resolved"}];
//sort links by source, then target
links.sort(function(a,b) {
    if (a.source > b.source) {return 1;}
    else if (a.source < b.source) {return -1;}
    else {
        if (a.target > b.target) {return 1;}
        if (a.target < b.target) {return -1;}
        else {return 0;}
    }
});
//any links with duplicate source and target get an incremented 'linknum'
for (var i=0; i<links.length; i++) {
    if (i != 0 &&
        links[i].source == links[i-1].source &&
        links[i].target == links[i-1].target) {
            links[i].linknum = links[i-1].linknum + 1;
        }
    else {links[i].linknum = 1;};
};

var nodes = {};

// Compute the distinct nodes from the links.
links.forEach(function(link) {
  link.source = nodes[link.source] || (nodes[link.source] = {name: link.source});
  link.target = nodes[link.target] || (nodes[link.target] = {name: link.target});
});

var w = 600,
    h = 600;

var force = d3.layout.force()
    .nodes(d3.values(nodes))
    .links(links)
    .size([w, h])
    .linkDistance(60)
    .charge(-300)
    .on("tick", tick)
    .start();

var svg = d3.select("body").append("svg:svg")
    .attr("width", w)
    .attr("height", h);

// Per-type markers, as they don't inherit styles.
svg.append("svg:defs").selectAll("marker")
    .data(["suit", "licensing", "resolved"])
  .enter().append("svg:marker")
    .attr("id", String)
    .attr("viewBox", "0 -5 10 10")
    .attr("refX", 15)
    .attr("refY", -1.5)
    .attr("markerWidth", 6)
    .attr("markerHeight", 6)
    .attr("orient", "auto")
  .append("svg:path")
    .attr("d", "M0,-5L10,0L0,5");

var path = svg.append("svg:g").selectAll("path")
    .data(force.links())
  .enter().append("svg:path")
    .attr("class", function(d) { return "link " + d.type; })
    .attr("marker-end", function(d) { return "url(#" + d.type + ")"; });

var circle = svg.append("svg:g").selectAll("circle")
    .data(force.nodes())
  .enter().append("svg:circle")
    .attr("r", 6)
    .call(force.drag);

var text = svg.append("svg:g").selectAll("g")
    .data(force.nodes())
  .enter().append("svg:g");

// A copy of the text with a thick white stroke for legibility.
text.append("svg:text")
    .attr("x", 8)
    .attr("y", ".31em")
    .attr("class", "shadow")
    .text(function(d) { return d.name; });

text.append("svg:text")
    .attr("x", 8)
    .attr("y", ".31em")
    .text(function(d) { return d.name; });

// Use elliptical arc path segments to doubly-encode directionality.
function tick() {
  path.attr("d", function(d) {
    var dx = d.target.x - d.source.x,
        dy = d.target.y - d.source.y,
        dr = 75/d.linknum;  //linknum is defined above
    return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
  });

  circle.attr("transform", function(d) {
    return "translate(" + d.x + "," + d.y + ")";
  });

  text.attr("transform", function(d) {
    return "translate(" + d.x + "," + d.y + ")";
  });
}


  //]]></script>

  <script>
    // tell the embed parent frame the height of the content
    if (window.parent && window.parent.parent){
      window.parent.parent.postMessage(["resultsFrame", {
        height: document.body.getBoundingClientRect().height,
        slug: "7HZcR"
      }], "*")
    }

    // always overwrite window.name, in case users try to set it manually
    window.name = "result"
  </script>

    <script>
      let allLines = []

      window.addEventListener("message", (message) => {
        if (message.data.console){
          let insert = document.querySelector("#insert")
          allLines.push(message.data.console.payload)
          insert.innerHTML = allLines.join(";\r")

          let result = eval.call(null, message.data.console.payload)
          if (result !== undefined){
            console.log(result)
          }
        }
      })
    </script>

</body>

javascript - 无法确定我找到的示例代码的正确版本 D3

问题描述

解决方案

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