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其实就是简单的力导向图
只是加载了json文件
设置了分层的颜色
设置化学键分隔线
- var radius = d3.scale.sqrt()
- .range([0, 6]);//值域
- .linkDistance(function(d) {//(2)连线是两个圆半径之和+20那么长
- return radius(d.source.size) //数据源里的size就是半径
- + radius(d.target.size) + 20;
- });
- //怎么添加多条分隔线呢?
- link.filter(function(d) {//基于数据过滤的选择。
- return d.bond > 1;
- }).append("line")
- .attr("class", "separator");//添加一条分隔线
- node.append("circle")
- .attr("r", function(d) {
- return radius(d.size); //(4)根据圆圈的种类的大小设置大小
- })
- .style("fill", function(d) {
- return color(d.atom); //根据圆圈的种类设置颜色
- });
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <title>testD3-29-Molecule.html</title>
- <script type="text/javascript" src="http://localhost:8080/spring/js/d3.v3.js"></script>
- <style type="text/css">
- .link line {
- stroke: #696969;
- }
- /* 分隔线的格式 透明的 */
- .link line.separator {
- stroke: #fff;
- stroke-width: 2px;
- }
-
- .node circle {
- stroke: #000;
- stroke-width: 1.5px;
- }
-
- .node text {
- font: 10px sans-serif;
- pointer-events: none;
- }
- </style>
- </head>
- <body>
- <script type="text/javascript">
- var width = 960,
- height = 500;
-
- var color = d3.scale.category20();
- //(1)平方根比例尺
- var radius = d3.scale.sqrt()
- .range([0, 6]);//值域
-
- var svg = d3.select("body").append("svg")
- .attr("width", width)
- .attr("height", height);
-
- var force = d3.layout.force()
- .size([width, height])
- .charge(-400)
- .linkDistance(function(d) {//(2)连线是两个圆半径之和+20那么长
- return radius(d.source.size) //数据源里的size就是半径
- + radius(d.target.size) + 20;
- });
-
- d3.json("http://localhost:8080/spring/D3data/graph.json", function(graph) {
- force
- .nodes(graph.nodes)
- .links(graph.links)
- .on("tick", tick)
- .start();
-
- var link = svg.selectAll(".link")
- .data(graph.links)
- .enter().append("g")
- .attr("class", "link");
-
- link.append("line")
- .style("stroke-width", function(d) { return (d.bond * 2 - 1) * 2 + "px"; });
- //(3)只要连线大于2就加一条分隔线
- //怎么添加多条分隔线呢?
- link.filter(function(d) {//基于数据过滤的选择。
- return d.bond > 1;
- }).append("line")
- .attr("class", "separator");//添加一条分隔线
- //常规的添加节点
- var node = svg.selectAll(".node")
- .data(graph.nodes)
- .enter().append("g")
- .attr("class", "node")
- .call(force.drag);
- //常规的添加圆点
- node.append("circle")
- .attr("r", function(d) {
- return radius(d.size); //(4)根据圆圈的种类的大小设置大小
- })
- .style("fill", function(d) {
- return color(d.atom); //根据圆圈的种类设置颜色
- });
-
- node.append("text")
- .attr("dy", ".35em")
- .attr("text-anchor", "middle")//在圆圈中加上数据
- .text(function(d) { return d.atom; });
- //常规的打点
- function tick() {
- link.selectAll("line")
- .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 + ")";
- });
- }
- });
- </script>
-
- </body>
- </html>
{
"nodes": [
{"atom": "C", "size": 12},
{"atom": "C", "size": 12},
{"atom": "C", "size": 12},
{"atom": "N", "size": 14},
{"atom": "H", "size": 1},
{"atom": "O", "size": 16},
{"atom": "O", "size": 16},
{"atom": "H", "size": 1},
{"atom": "H", "size": 1},
{"atom": "H", "size": 1},
{"atom": "H", "size": 1},
{"atom": "H", "size": 1},
{"atom": "H", "size": 1}
],
"links": [
{"source": 0, "target": 1, "bond": 1},
{"source": 1, "target": 2, "bond": 1},
{"source": 1, "target": 3, "bond": 1},
{"source": 2, "target": 5, "bond": 4},
{"source": 2, "target": 6, "bond": 1},
{"source": 1, "target": 4, "bond": 1},
{"source": 3, "target": 10, "bond": 1},
{"source": 3, "target": 11, "bond": 1},
{"source": 0, "target": 7, "bond": 1},
{"source": 0, "target": 8, "bond": 1},
{"source": 0, "target": 9, "bond": 1},
{"source": 5, "target": 12, "bond": 1}
]
}
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