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Radar
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| circle{fill:none;stroke:#154577;stroke-width:3px} | |
| .bg{fill:#fff1e0} | |
| .crosshair{fill:none;stroke:#154577;stroke-width:1px} | |
| .axis{opacity:0.3} | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var w = 580; | |
| var h = 580; | |
| var radius = 200; | |
| var tickValues = [25,50,75]; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", w) | |
| .attr("height", h) | |
| svg.append("rect") | |
| .attr("width",w) | |
| .attr("height",h) | |
| .attr("class","bg") | |
| svg.append("circle") | |
| .attr("cx",w/2) | |
| .attr("cy",h/2) | |
| .attr("r",radius) | |
| //horizontal line | |
| svg.append("line") | |
| .attr("class","crosshair") | |
| .attr("x1",(w/2)-radius) | |
| .attr("y1",h/2) | |
| .attr("x2",(w/2)+radius) | |
| .attr("y2",h/2) | |
| //vertical line | |
| svg.append("line") | |
| .attr("class","crosshair") | |
| .attr("x1",w/2) | |
| .attr("y1",(h/2)-radius) | |
| .attr("x2",w/2) | |
| .attr("y2",(h/2)+radius) | |
| //STEP 1 - DEFINE THE SCALES | |
| //N Korea | |
| var scaleN = d3.scaleLinear() | |
| .domain([0,100]) | |
| .range([h/2,(h/2)-radius]); | |
| //domain = data values (min max) | |
| //range = pixel outputs (for min and max) | |
| //US | |
| var scaleS = d3.scaleLinear() | |
| .domain([0,100]) | |
| .range([h/2,(h/2)+radius]); | |
| //China | |
| var scaleW = d3.scaleLinear() | |
| .domain([0,100]) | |
| .range([w/2,(w/2)-radius]); | |
| //Japan | |
| var scaleE = d3.scaleLinear() | |
| .domain([0,100]) | |
| .range([w/2,(w/2)+radius]); | |
| //STEP 2 - DEFINE THE AXES | |
| var axisN = d3.axisLeft() | |
| .scale(scaleN) | |
| .tickValues(tickValues) | |
| var axisS = d3.axisRight() | |
| .scale(scaleS) | |
| .tickValues(tickValues) | |
| var axisE = d3.axisBottom() | |
| .scale(scaleE) | |
| .tickValues(tickValues) | |
| var axisW = d3.axisTop() | |
| .scale(scaleW) | |
| .tickValues(tickValues) | |
| //STEP 3 - APPEND THE AXES TO THE SVG | |
| svg.append("g") | |
| .attr("class","axis") | |
| .attr("transform","translate(0,"+h/2+")") | |
| .call(axisE) | |
| svg.append("g") | |
| .attr("class","axis") | |
| .attr("transform","translate(0,"+h/2+")") | |
| .call(axisW) | |
| svg.append("g") | |
| .attr("class","axis") | |
| .attr("transform","translate("+w/2+",0)") | |
| .call(axisS) | |
| svg.append("g") | |
| .attr("class","axis") | |
| .attr("transform","translate("+w/2+",0)") | |
| .call(axisN) | |
| //draw the data last so it appears on top | |
| svg.append("circle") | |
| .attr("cx",scaleE(50)) | |
| .attr("r",5) | |
| .attr("cy",h/2) | |
| </script> | |
| </body> |
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