仿照D3JS官网上的美国地图制作了一个中国版的地图.
D3JS官网上的版本：
http://bl.ocks.org/NPashaP/a74faf20b492ad377312
中国版的地图效果：
如要制作其他国家或其他具体省份-市区级的地图，只需替换掉javascript中的SVG地图数据即可。地图上每个省份的统计数据是随机生成的，可根据需求导入实际业务数据。
分享一个SVG地图数据的网站：https://commons.wikimedia.org/wiki/Category:SVG_maps_of_China
Javascript 代码:
1 (function(){
2 var uStatePaths=[
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37 var uStates={};
38
39 uStates.draw = function(id, data, toolTip){
40 function mouseOver(d){
41 d3.select("#tooltip").transition().duration(200).style("opacity", .9);
42
43 d3.select("#tooltip").html(toolTip(d.n, data[d.id]))
44 .style("left", (d3.event.pageX) + "px")
45 .style("top", (d3.event.pageY - 28) + "px");
46 }
47
48 function mouseOut(){
49 d3.select("#tooltip").transition().duration(500).style("opacity", 0);
50 }
51
52 d3.select(id).selectAll(".state")
53 .data(uStatePaths).enter().append("path").attr("class","state").attr("d",function(d){ return d.d;})
54 .style("fill",function(d){ return data[d.id].color; })
55 .on("mouseover", mouseOver).on("mouseout", mouseOut);
56 }
57 this.uStates=uStates;
58 })();
HTML 代码:
1 <!DOCTYPE html>
2 <meta charset="utf-8">
3 <style>
4 .state{
5 fill: none;
6 stroke: #a9a9a9;
7 stroke-width: 1;
8 }
9 .state:hover{
10 fill-opacity:0.5;
11 }
12 #tooltip {
13 position: absolute;
14 text-align: center;
15 padding: 20px;
16 margin: 10px;
17 font: 12px sans-serif;
18 background: lightsteelblue;
19 border: 1px;
20 border-radius: 2px;
21 pointer-events: none;
22 }
23 #tooltip h4{
24 margin:0;
25 font-size:14px;
26 }
27 #tooltip{
28 background:rgba(0,0,0,0.9);
29 border:1px solid grey;
30 border-radius:5px;
31 font-size:12px;
32 width:auto;
33 padding:4px;
34 color:white;
35 opacity:0;
36 }
37 #tooltip table{
38 table-layout:fixed;
39 }
40 #tooltip tr td{
41 padding:0;
42 margin:0;
43 }
44 #tooltip tr td:nth-child(1){
45 width:50px;
46 }
47 #tooltip tr td:nth-child(2){
48 text-align:center;
49 }
50 </style>
51 <body>
52 <div id="tooltip"></div><!-- div to hold tooltip. -->
53 <svg width="560" height="470" id="statesvg"></svg> <!-- svg to hold the map. -->
54 <script src="china-zh2.js"></script> <!-- creates uStates. -->
55 <script src="d3.min.js"></script>
56 <script>
57
58 function tooltipHtml(n, d){ /* function to create html content string in tooltip div. */
59 return "<h4>"+n+"</h4><table>"+
60 "<tr><td>Low</td><td>"+(d.low)+"</td></tr>"+
61 "<tr><td>Average</td><td>"+(d.avg)+"</td></tr>"+
62 "<tr><td>High</td><td>"+(d.high)+"</td></tr>"+
63 "</table>";
64 }
65
66 var sampleData ={}; /* Sample random data. */
67 [‘JXI‘, ‘LIA‘, ‘TIB‘, ‘NMG‘, ‘SHH‘, ‘CHQ‘, ‘XIN‘, ‘SHD‘, ‘HEN‘, ‘GUD‘, ‘GUI‘, ‘BEJ‘, ‘MAC‘, ‘TAJ‘, ‘HLJ‘, ‘HEB‘, ‘ZHJ‘, ‘ANH‘, ‘GXI‘, ‘HAI‘, ‘JIL‘, ‘SHX‘, ‘HUN‘, ‘YUN‘, ‘FUJ‘, ‘HUB‘, ‘SHA‘, ‘HKG‘, ‘QIH‘, ‘GAN‘, ‘JSU‘, ‘SCH‘, ‘NXA‘, ‘TAI‘]
68 .forEach(function(d){
69 var low=Math.round(100*Math.random()),
70 mid=Math.round(100*Math.random()),
71 high=Math.round(100*Math.random());
72 sampleData[d]={low:d3.min([low,mid,high]), high:d3.max([low,mid,high]),
73 avg:Math.round((low+mid+high)/3), color:d3.interpolate("#ffffcc", "#800026")(low/100)};
74 });
75
76 /* draw states on id #statesvg */
77 uStates.draw("#statesvg", sampleData, tooltipHtml);
78 </script>
79
80 </body>
时间： 2024-10-11 05:27:37