D3力有向图，根据数据和值给出不同的形状？ [英] D3 force directed graph, different shape according to data and value given?

问题描述

我制作了一个强制有向图，我想改变包含entity：company的数据的节点形状，以便它们具有矩形形状，

I've made a force directed graph and I wanted to change shape of nodes for data which contains "entity":"company" so they would have rectangle shape, and other one without this part of data would be circles as they are now.

你可以在这里看到我的只有圆形节点的工作示例： http://jsfiddle.net/dzorz/uWtSk/

You can see my working example with only circle nodes here: http://jsfiddle.net/dzorz/uWtSk/

ve尝试添加如果else 语句在部分代码中添加矩形，其中我追加形状到节点像这样：

I've tried to add rectangles with if else statement in part of code where I append shape to node like this:

function(d)
    {
        if (d.entity == "company")
        {
            node.append("rect")
                .attr("class", function(d){ return "node type"+d.type})
                .attr("width", 100)
                .attr("height", 50)
                .call(force.drag);
        }
        else
        {
        node.append("circle")
            .attr("class", function(d){ return "node type"+d.type})
            .attr("r", function(d) { return radius(d.value) || 10 })
            //.style("fill", function(d) { return fill(d.type); })
            .call(force.drag);
        }
    }

但是我没有得到任何形状任何节点。

But then I did not get any shape at all on any node.

什么是正确的设置方式？

What Is a proper way to set up this?

整个代码看起来像这样：
脚本：

The whole code looks like this: script:

var data = {"nodes":[
                        {"name":"Action 4", "type":5, "slug": "", "value":265000},
                        {"name":"Action 5", "type":6, "slug": "", "value":23000},
                        {"name":"Action 3", "type":4, "slug": "", "value":115000},
                        {"name":"Yahoo", "type":1, "slug": "www.yahoo.com", "entity":"company"},
                        {"name":"Google", "type":1, "slug": "www.google.com", "entity":"company"},
                        {"name":"Action 1", "type":2, "slug": "",},
                        {"name":"Action 2", "type":3, "slug": "",},
                        {"name":"Bing", "type":1, "slug": "www.bing.com", "entity":"company"},
                        {"name":"Yandex", "type":1, "slug": "www.yandex.com)", "entity":"company"}
                    ], 
            "links":[
                        {"source":0,"target":3,"value":10},
                        {"source":4,"target":3,"value":1},
                        {"source":1,"target":7,"value":10},
                        {"source":2,"target":4,"value":10},
                        {"source":4,"target":7,"value":1},
                        {"source":4,"target":5,"value":10},
                        {"source":4,"target":6,"value":10},
                        {"source":8,"target":4,"value":1}
                        ]
               }    



    var w = 560,
        h = 500,
        radius = d3.scale.log().domain([0, 312000]).range(["10", "50"]);

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

        vis.append("defs").append("marker")
        .attr("id", "arrowhead")
        .attr("refX", 17 + 3) /*must be smarter way to calculate shift*/
        .attr("refY", 2)
        .attr("markerWidth", 6)
        .attr("markerHeight", 4)
        .attr("orient", "auto")
        .append("path")
            .attr("d", "M 0,0 V 4 L6,2 Z"); //this is actual shape for arrowhead

    //d3.json(data, function(json) {
        var force = self.force = d3.layout.force()
            .nodes(data.nodes)
            .links(data.links)
            .distance(100)
            .charge(-1000)
            .size([w, h])
            .start();



        var link = vis.selectAll("line.link")
            .data(data.links)
            .enter().append("svg:line")
            .attr("class", function (d) { return "link" + d.value +""; })
            .attr("x1", function(d) { return d.source.x; })
            .attr("y1", function(d) { return d.source.y; })
            .attr("x2", function(d) { return d.target.x; })
            .attr("y2", function(d) { return d.target.y; })
            .attr("marker-end", function(d) {
                                                if (d.value == 1) {return "url(#arrowhead)"}
                                                else    { return " " }
                                            ;});


        function openLink() {
        return function(d) {
            var url = "";
            if(d.slug != "") {
                url = d.slug
            } //else if(d.type == 2) {
                //url = "clients/" + d.slug
            //} else if(d.type == 3) {
                //url = "agencies/" + d.slug
            //}
            window.open("//"+url)
        }
    }




        var node = vis.selectAll("g.node")
            .data(data.nodes)
          .enter().append("svg:g")
            .attr("class", "node")
            .call(force.drag);

        node.append("circle")
          .attr("class", function(d){ return "node type"+d.type})
            .attr("r", function(d) { return radius(d.value) || 10 })
          //.style("fill", function(d) { return fill(d.type); })
          .call(force.drag);

        node.append("svg:image")
            .attr("class", "circle")
            .attr("xlink:href", function(d){ return d.img_href})
            .attr("x", "-16px")
            .attr("y", "-16px")
            .attr("width", "32px")
            .attr("height", "32px")
            .on("click", openLink());

        node.append("svg:text")
            .attr("class", "nodetext")
            .attr("dx", 0)
            .attr("dy", ".35em")
            .attr("text-anchor", "middle")
            .text(function(d) { return d.name });

        force.on("tick", function() {
          link.attr("x1", function(d) { return d.source.x; })
              .attr("y1", function(d) { return d.source.y; })
              .attr("x2", function(d) { return d.target.x; })
              .attr("y2", function(d) { return d.target.y; });

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

css：

.link10 { stroke: #ccc; stroke-width: 3px; stroke-dasharray: 3, 3; }
.link1 { stroke: #000; stroke-width: 3px;}
.nodetext { pointer-events: none; font: 10px sans-serif; }

.node.type1 {
  fill:brown;
}
.node.type2 {
  fill:#337147;
}
.node.type3 {
  fill:blue;
}
.node.type4 {
  fill:red;
}

.node.type5 {
    fill:#1BC9E0;
}

.node.type6 {
    fill:#E01B98;
}

image.circle {
    cursor:pointer;
}

您可以编辑我的jsfiddle链接在开头的帖子...

You can edit my jsfiddle linked on beginning of post...

推荐答案

解决方案： http://jsfiddle.net/Bull/4btFx/1/

我得到这个工作通过添加一个类到每个节点，然后使用 selectAll为每个类添加形状。在下面的代码中，我添加了一个类node和我的JSON（d.type）返回的类是rect或ellipse。

I got this to work by adding a class to each node, then using "selectAll" for each class to add the shapes. In the code below, I'm adding a class "node" and a class returned by my JSON (d.type) which is either "rect" or "ellipse".

  var node = container.append("g")
  .attr("class", "nodes")
  .selectAll(".node")
  .data(graph.nodes)
  .enter().append("g")
  .attr("class", function(d) {
     return d.type + " node";
  })
  .call(drag);

然后您可以为每个类的所有元素添加形状：

Then you can add the shape for all elements of each class:

  d3.selectAll(".rect").append("rect")
  .attr("width", window.nodeWidth)
  .attr("height", window.nodeHeight)
  .attr("class", function(d) { 
     return "color_" + d.class 
  });

  d3.selectAll(".ellipse").append("rect")
  .attr("rx", window.nodeWidth*0.5)
  .attr("ry", window.nodeHeight*0.5)
  .attr("width", window.nodeWidth)
  .attr("height", window.nodeHeight)
  .attr("class", function(d) { 
     return "color_" + d.class 
  });

在上面的例子中，我使用半径的矩形来绘制椭圆，因为它们以相同的方式居中作为矩形。但它也适用于其他形状。在jsfiddle我链接，中心关闭，但形状是正确的。

In the above example, I used rectangles with radius to draw the ellipses since it centers them the same way as the rectangles. But it works with other shapes too. In the jsfiddle I linked, the centering is off, but the shapes are right.

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