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| license: mit |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/topojson.v2.min.js"></script> | |
| <script src="https://d3js.org/d3-queue.v3.min.js"></script> | |
| <style> | |
| svg { | |
| width: 100%; | |
| height: 100%; | |
| position: center; | |
| } | |
| .hidden { | |
| display: none; | |
| } | |
| div.tooltip { | |
| color: #222; | |
| background: #fff; | |
| border-radius: 3px; | |
| box-shadow: 0px 0px 2px 0px #a6a6a6; | |
| padding: .2em; | |
| text-shadow: #f5f5f5 0 1px 0; | |
| opacity: 0.9; | |
| position: absolute; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg width="1200" height="900"></svg> | |
| <div class="tooltip"></div> | |
| <script> | |
| var margin = {top: 10, right: 10, bottom: 10, left: 10}; | |
| var width = 1200 - margin.left - margin.right; | |
| var height = 900 - margin.top - margin.bottom; | |
| var color = d3.scaleOrdinal(d3.schemeCategory20c); | |
| var projection = d3.geoMercator() | |
| .center([110, 25]) | |
| .scale([800]) | |
| .translate([550,550]) | |
| .precision([.1]); | |
| var path = d3.geoPath() | |
| .projection(projection); | |
| var svg = d3.select("svg") | |
| .append("g") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var tooltip = d3.select("div.tooltip"); | |
| d3.json("huadong.json", function(error, china) { | |
| if (error) throw error; | |
| svg.selectAll("path") | |
| .data(china.features) | |
| .enter() | |
| .append("path") | |
| .attr("stroke","grey") | |
| .attr("stroke-width",1) | |
| .attr("fill", function(d,i){ | |
| return color(i); | |
| }) | |
| .attr("d", path ) | |
| .on("mouseover",function(d,i){ | |
| d3.select(this).attr("fill","grey").attr("stroke-width",2); | |
| return tooltip.style("hidden", false).html(d.properties.name); | |
| }) | |
| .on("mousemove",function(d){ | |
| tooltip.classed("hidden", false) | |
| .style("top", (d3.event.pageY) + "px") | |
| .style("left", (d3.event.pageX+10) + "px") | |
| .html(d.properties.name); | |
| }) | |
| .on("mouseout",function(d,i){ | |
| d3.select(this).attr("fill",color(i)).attr("stroke-width",1); | |
| tooltip.classed("hidden", true); | |
| }); | |
| }); | |
| </script> | |
| </body> |
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