使用d3.js创建Sankey图表时出现的问题(3)

使用d3.js创建Sankey图表时出现的问题(3),d3.js,sankey-diagram,D3.js,Sankey Diagram,这与我之前的问题“使用d3.js(1和2)创建Sankey图表的问题”有关 在这里,我试图复制马尔科姆·麦克莱恩(Malcolm Maclean)在其著作《D3技巧与技巧》(D3 Tips and Tricks)中提供的示例,他对“sankey格式的json”的实现是有效的,而我的不是:>) 我的测试数据集(TestDrive_ext'json)是 从Malcolm的示例复制的代码是 <!DOCTYPE html> <meta charset="utf-8"> <t

这与我之前的问题“使用d3.js(1和2)创建Sankey图表的问题”有关

在这里,我试图复制马尔科姆·麦克莱恩(Malcolm Maclean)在其著作《D3技巧与技巧》(D3 Tips and Tricks)中提供的示例,他对“sankey格式的json”的实现是有效的,而我的不是:>)

我的测试数据集(TestDrive_ext'json)是

从Malcolm的示例复制的代码是

<!DOCTYPE html>
<meta charset="utf-8">
<title>SANKEY Experiment</title>
<style>

.node rect {
  cursor: move;
  fill-opacity: .9;
  shape-rendering: crispEdges;
}

.node text {
  pointer-events: none;
  text-shadow: 0 1px 0 #fff;
}

.link {
  fill: none;
  stroke: #000;
  stroke-opacity: .2;
}

.link:hover {
  stroke-opacity: .5;
}

</style>
<body>

<p id="chart">

<script type="text/javascript" src="d3/d3.v3.js"></script>
<script src="js/sankey.js"></script>
<script>

var units = "Widgets";

var margin = {top: 10, right: 10, bottom: 10, left: 10},
    width = 700 - margin.left - margin.right,
    height = 300 - margin.top - margin.bottom;

var formatNumber = d3.format(",.0f"),    // zero decimal places
    format = function(d) { return formatNumber(d) + " " + units; },
    color = d3.scale.category20();

// append the svg canvas to the page
var svg = d3.select("#chart").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", 
          "translate(" + margin.left + "," + margin.top + ")");

// Set the sankey diagram properties
var sankey = d3.sankey()
    .nodeWidth(15)
    .nodePadding(10)
    .size([width, height]);

var path = sankey.link();

// load the data
d3.json("data/TestDrive_ext.json", function(error, graph) {

  sankey
      .nodes(graph.nodes)
      .links(graph.links)
      .layout(32);


// add in the links
  var link = svg.append("g").selectAll(".link")
      .data(graph.links)
    .enter().append("path")
      .attr("class", "link")
      .attr("d", path)
      .style("stroke-width", function(d) { return Math.max(1, d.dy); })
      .sort(function(a, b) { return b.dy - a.dy; });

// add the link titles
  link.append("title")
        .text(function(d) {
            return d.source.name + " → " + 
                d.target.name + "\n" + format(d.value); });

// add in the nodes
  var node = svg.append("g").selectAll(".node")
      .data(graph.nodes)
    .enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { 
          return "translate(" + d.x + "," + d.y + ")"; })
    .call(d3.behavior.drag()
      .origin(function(d) { return d; })
      .on("dragstart", function() { 
          this.parentNode.appendChild(this); })
      .on("drag", dragmove));

// add the rectangles for the nodes
  node.append("rect")
      .attr("height", function(d) { return d.dy; })
      .attr("width", sankey.nodeWidth())
      .style("fill", function(d) { 
          return d.color = color(d.name.replace(/ .*/, "")); })
      .style("stroke", function(d) { 
          return d3.rgb(d.color).darker(2); })
    .append("title")
      .text(function(d) { 
          return d.name + "\n" + format(d.value); });

// add in the title for the nodes
  node.append("text")
      .attr("x", -6)
      .attr("y", function(d) { return d.dy / 2; })
      .attr("dy", ".35em")
      .attr("text-anchor", "end")
      .attr("transform", null)
      .text(function(d) { return d.name; })
    .filter(function(d) { return d.x < width / 2; })
      .attr("x", 6 + sankey.nodeWidth())
      .attr("text-anchor", "start");

// the function for moving the nodes
  function dragmove(d) {
    d3.select(this).attr("transform", 
        "translate(" + d.x + "," + (
                d.y = Math.max(0, Math.min(height - d.dy, d3.event.y))
            ) + ")");
    sankey.relayout();
    link.attr("d", path);
  }
});

</script>

</body>
</html>

桑基实验
.node rect{
光标:移动;
填充不透明度:.9;
形状渲染:边缘清晰;
}
.节点文本{
指针事件:无;
文本阴影:0 1px 0#fff;
}
.链接{
填充:无;
行程:#000;
笔画不透明度:.2;
}
.link:悬停{
笔画不透明度:.5;
}

var units=“Widgets”; var margin={顶部:10,右侧:10,底部:10,左侧:10}, 宽度=700-边距。左侧-边距。右侧, 高度=300-margin.top-margin.bottom; var formatNumber=d3.format(“,.0f”),//小数点后零位 format=函数(d){返回formatNumber(d)+“”+单位;}, 颜色=d3.scale.category20(); //将svg画布追加到页面 var svg=d3.选择(“图表”).追加(“svg”) .attr(“宽度”,宽度+边距。左侧+边距。右侧) .attr(“高度”,高度+边距。顶部+边距。底部) .附加(“g”) .attr(“转换”, “翻译(“+margin.left+”,“+margin.top+”); //设置sankey图表属性 var sankey=d3.sankey() .诺德维特(15) .nodePadding(10) .尺寸([宽度、高度]); var path=sankey.link(); //加载数据 d3.json(“data/TestDrive_ext.json”),函数(错误,图形){ 桑基 .nodes(图.nodes) .links(graph.links) .布局(32); //添加链接 var link=svg.append(“g”).selectAll(“link”) .数据(图表.链接) .enter().append(“路径”) .attr(“类”、“链接”) .attr(“d”,路径) .style(“笔划宽度”,函数(d){return Math.max(1,d.dy);}) .sort(函数(a,b){返回b.dy-a.dy;}); //添加链接标题 链接。附加(“标题”) .文本(功能(d){ 返回d.source.name+”→ " + d、 target.name+“\n”+格式(d.value);}); //添加节点 var node=svg.append(“g”).selectAll(“node”) .数据(图.节点) .enter().append(“g”) .attr(“类”、“节点”) .attr(“转换”,函数(d){ 返回“translate”(“+d.x+”,“+d.y+”);}) .call(d3.behavior.drag()) .origin(函数(d){return d;}) .on(“dragstart”,函数(){ this.parentNode.appendChild(this);}) .在(“拖动”,拖动)上); //为节点添加矩形 node.append(“rect”) .attr(“高度”,函数(d){返回d.dy;}) .attr(“宽度”,sankey.nodeWidth()) .style(“填充”,函数(d){ 返回d.color=color(d.name.replace(/.*/,“”);}) .style(“笔划”,函数(d){ 返回d3.rgb(d.color).dark(2);}) .附加(“标题”) .text(功能(d){ 返回d.name+“\n”+格式(d.value);}); //添加节点的标题 node.append(“文本”) .attr(“x”,-6) .attr(“y”,函数(d){返回d.dy/2;}) .attr(“dy”,“.35em”) .attr(“文本锚定”、“结束”) .attr(“转换”,null) .text(函数(d){返回d.name;}) .filter(函数(d){返回d.x

同样,这不会在Javascript控制台中引发任何错误,但该图不会呈现,但正如我前面所说的,Malcolm的会呈现

我不太明白如何解释JSFIDLE,它可以在

再一次,任何有助于我理解我错在哪里的见解都将不胜感激

非常感谢

朱利安

<!DOCTYPE html>
<meta charset="utf-8">
<title>SANKEY Experiment</title>
<style>

.node rect {
  cursor: move;
  fill-opacity: .9;
  shape-rendering: crispEdges;
}

.node text {
  pointer-events: none;
  text-shadow: 0 1px 0 #fff;
}

.link {
  fill: none;
  stroke: #000;
  stroke-opacity: .2;
}

.link:hover {
  stroke-opacity: .5;
}

</style>
<body>

<p id="chart">

<script type="text/javascript" src="d3/d3.v3.js"></script>
<script src="js/sankey.js"></script>
<script>

var units = "Widgets";

var margin = {top: 10, right: 10, bottom: 10, left: 10},
    width = 700 - margin.left - margin.right,
    height = 300 - margin.top - margin.bottom;

var formatNumber = d3.format(",.0f"),    // zero decimal places
    format = function(d) { return formatNumber(d) + " " + units; },
    color = d3.scale.category20();

// append the svg canvas to the page
var svg = d3.select("#chart").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", 
          "translate(" + margin.left + "," + margin.top + ")");

// Set the sankey diagram properties
var sankey = d3.sankey()
    .nodeWidth(15)
    .nodePadding(10)
    .size([width, height]);

var path = sankey.link();

// load the data
d3.json("data/TestDrive_ext.json", function(error, graph) {

  sankey
      .nodes(graph.nodes)
      .links(graph.links)
      .layout(32);


// add in the links
  var link = svg.append("g").selectAll(".link")
      .data(graph.links)
    .enter().append("path")
      .attr("class", "link")
      .attr("d", path)
      .style("stroke-width", function(d) { return Math.max(1, d.dy); })
      .sort(function(a, b) { return b.dy - a.dy; });

// add the link titles
  link.append("title")
        .text(function(d) {
            return d.source.name + " → " + 
                d.target.name + "\n" + format(d.value); });

// add in the nodes
  var node = svg.append("g").selectAll(".node")
      .data(graph.nodes)
    .enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { 
          return "translate(" + d.x + "," + d.y + ")"; })
    .call(d3.behavior.drag()
      .origin(function(d) { return d; })
      .on("dragstart", function() { 
          this.parentNode.appendChild(this); })
      .on("drag", dragmove));

// add the rectangles for the nodes
  node.append("rect")
      .attr("height", function(d) { return d.dy; })
      .attr("width", sankey.nodeWidth())
      .style("fill", function(d) { 
          return d.color = color(d.name.replace(/ .*/, "")); })
      .style("stroke", function(d) { 
          return d3.rgb(d.color).darker(2); })
    .append("title")
      .text(function(d) { 
          return d.name + "\n" + format(d.value); });

// add in the title for the nodes
  node.append("text")
      .attr("x", -6)
      .attr("y", function(d) { return d.dy / 2; })
      .attr("dy", ".35em")
      .attr("text-anchor", "end")
      .attr("transform", null)
      .text(function(d) { return d.name; })
    .filter(function(d) { return d.x < width / 2; })
      .attr("x", 6 + sankey.nodeWidth())
      .attr("text-anchor", "start");

// the function for moving the nodes
  function dragmove(d) {
    d3.select(this).attr("transform", 
        "translate(" + d.x + "," + (
                d.y = Math.max(0, Math.min(height - d.dy, d3.event.y))
            ) + ")");
    sankey.relayout();
    link.attr("d", path);
  }
});

</script>

</body>
</html>