Last active
August 29, 2015 14:02
-
-
Save nitaku/af6f61a8de5888b8e035 to your computer and use it in GitHub Desktop.
Radar chart
This file contains 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.
Learn more about bidirectional Unicode characters
| ### polar layout ### | |
| polar = () -> | |
| # defaults | |
| #scale = d3.scale.linear | |
| self = (data) -> | |
| data.forEach (d, i) -> | |
| d.angle = i * 2*Math.PI/data.length | |
| return data | |
| return self | |
| ### --- ### | |
| csv = ''' | |
| category,value | |
| one,323 | |
| two,534 | |
| three,230 | |
| four,156 | |
| five,336 | |
| ''' | |
| data = d3.csv.parse csv | |
| data.forEach (d) -> d.value = +d.value | |
| max = d3.max(data, (d) -> d.value) | |
| width = 960 | |
| height = 500 | |
| RADIUS = Math.min(width, height) / 2 - 40 | |
| polar_layout = polar() | |
| polar_data = polar_layout(data) | |
| svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr | |
| transform: "translate(#{width/2}, #{height/2})" | |
| polygon_generator = d3.svg.line() | |
| .x((d) -> RADIUS/max*d.value*Math.cos(d.angle)) | |
| .y((d) -> RADIUS/max*d.value*Math.sin(d.angle)) | |
| svg.append("path") | |
| .datum(polar_data) | |
| .attr | |
| class: 'polygon' | |
| d: (ds) -> polygon_generator(ds) + 'z' | |
| outer_polygon_generator = d3.svg.line() | |
| .x((d) -> RADIUS*Math.cos(d.angle)) | |
| .y((d) -> RADIUS*Math.sin(d.angle)) | |
| svg.append("path") | |
| .datum(polar_data) | |
| .attr | |
| class: 'outer_polygon' | |
| d: (ds) -> outer_polygon_generator(ds) + 'z' | |
| svg.selectAll(".radius") | |
| .data(polar_data) | |
| .enter().append("path") | |
| .attr('class','radius') | |
| .attr("d", (d) -> "M0 0 L#{RADIUS*Math.cos(d.angle)} #{RADIUS*Math.sin(d.angle)}") | |
| svg.selectAll(".dot") | |
| .data(polar_data) | |
| .enter().append("circle") | |
| .attr('class','dot') | |
| .attr | |
| cx: (d) -> "#{RADIUS/max*d.value*Math.cos(d.angle)}" | |
| cy: (d) -> "#{RADIUS/max*d.value*Math.sin(d.angle)}" | |
| r: 3 |
This file contains 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.
Learn more about bidirectional Unicode characters
| svg { | |
| background-color: white; | |
| } | |
| .radius { | |
| stroke: gray; | |
| stroke-dasharray: 3 3; | |
| } | |
| .polygon { | |
| fill: orange; | |
| fill-opacity: 0.2; | |
| stroke: orange; | |
| } | |
| .outer_polygon { | |
| fill: none; | |
| stroke: gray; | |
| stroke-dasharray: 3 3; | |
| } |
This file contains 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.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="description" content="Radar chart" /> | |
| <title>Radar chart</title> | |
| <link rel="stylesheet" href="index.css"> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| </head> | |
| <body> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
This file contains 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.
Learn more about bidirectional Unicode characters
| /* polar layout | |
| */ | |
| (function() { | |
| var RADIUS, csv, data, height, max, outer_polygon_generator, polar, polar_data, polar_layout, polygon_generator, svg, width; | |
| polar = function() { | |
| var self; | |
| self = function(data) { | |
| data.forEach(function(d, i) { | |
| return d.angle = i * 2 * Math.PI / data.length; | |
| }); | |
| return data; | |
| }; | |
| return self; | |
| }; | |
| /* --- | |
| */ | |
| csv = 'category,value\none,323\ntwo,534\nthree,230\nfour,156\nfive,336'; | |
| data = d3.csv.parse(csv); | |
| data.forEach(function(d) { | |
| return d.value = +d.value; | |
| }); | |
| max = d3.max(data, function(d) { | |
| return d.value; | |
| }); | |
| width = 960; | |
| height = 500; | |
| RADIUS = Math.min(width, height) / 2 - 40; | |
| polar_layout = polar(); | |
| polar_data = polar_layout(data); | |
| svg = d3.select("body").append("svg").attr("width", width).attr("height", height).append("g").attr({ | |
| transform: "translate(" + (width / 2) + ", " + (height / 2) + ")" | |
| }); | |
| polygon_generator = d3.svg.line().x(function(d) { | |
| return RADIUS / max * d.value * Math.cos(d.angle); | |
| }).y(function(d) { | |
| return RADIUS / max * d.value * Math.sin(d.angle); | |
| }); | |
| svg.append("path").datum(polar_data).attr({ | |
| "class": 'polygon', | |
| d: function(ds) { | |
| return polygon_generator(ds) + 'z'; | |
| } | |
| }); | |
| outer_polygon_generator = d3.svg.line().x(function(d) { | |
| return RADIUS * Math.cos(d.angle); | |
| }).y(function(d) { | |
| return RADIUS * Math.sin(d.angle); | |
| }); | |
| svg.append("path").datum(polar_data).attr({ | |
| "class": 'outer_polygon', | |
| d: function(ds) { | |
| return outer_polygon_generator(ds) + 'z'; | |
| } | |
| }); | |
| svg.selectAll(".radius").data(polar_data).enter().append("path").attr('class', 'radius').attr("d", function(d) { | |
| return "M0 0 L" + (RADIUS * Math.cos(d.angle)) + " " + (RADIUS * Math.sin(d.angle)); | |
| }); | |
| svg.selectAll(".dot").data(polar_data).enter().append("circle").attr('class', 'dot').attr({ | |
| cx: function(d) { | |
| return "" + (RADIUS / max * d.value * Math.cos(d.angle)); | |
| }, | |
| cy: function(d) { | |
| return "" + (RADIUS / max * d.value * Math.sin(d.angle)); | |
| }, | |
| r: 3 | |
| }); | |
| }).call(this); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment