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D3 Hive Plot (Areas) - std expose
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .arc { | |
| fill-opacity: .2; | |
| } | |
| .axis .fill { | |
| stroke: #aaa; | |
| stroke-width: 8px; | |
| stroke-linecap: square; | |
| } | |
| .axis .stroke { | |
| stroke: #fff; | |
| stroke-width: 12px; | |
| stroke-linecap: square; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://mbostock.github.com/d3/d3.v2.js?2.8.1"></script> | |
| <script src="link.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500, | |
| innerRadius = 40, | |
| outerRadius = 240; | |
| var angle = d3.scale.ordinal().domain(d3.range(4)).rangePoints([0, 2 * Math.PI]), | |
| radius = d3.scale.linear().range([innerRadius, outerRadius]), | |
| color = d3.scale.category20c().domain(d3.range(20)); | |
| var links = [ | |
| {source: {x: 0, y0: 0.9, y1: 1.0}, target: {x: 1, y0: 0.5, y1: 1.0}, group: 0}, | |
| {source: {x: 0, y0: 0.7, y1: 0.9}, target: {x: 1, y0: 0.4, y1: 0.5}, group: 1}, | |
| {source: {x: 0, y0: 0.4, y1: 0.7}, target: {x: 1, y0: 0.2, y1: 0.4}, group: 2}, | |
| {source: {x: 0, y0: 0.0, y1: 0.4}, target: {x: 1, y0: 0.0, y1: 0.2}, group: 3}, | |
| {source: {x: 1, y0: 0.8, y1: 1.0}, target: {x: 2, y0: 0.5, y1: 1.0}, group: 4}, | |
| {source: {x: 1, y0: 0.5, y1: 0.8}, target: {x: 2, y0: 0.2, y1: 0.5}, group: 5}, | |
| {source: {x: 1, y0: 0.3, y1: 0.5}, target: {x: 2, y0: 0.1, y1: 0.2}, group: 6}, | |
| {source: {x: 1, y0: 0.0, y1: 0.3}, target: {x: 2, y0: 0.0, y1: 0.1}, group: 7}, | |
| {source: {x: 2, y0: 0.8, y1: 1.0}, target: {x: 0, y0: 0.5, y1: 1.0}, group: 8}, | |
| {source: {x: 2, y0: 0.5, y1: 0.8}, target: {x: 0, y0: 0.2, y1: 0.5}, group: 9}, | |
| {source: {x: 2, y0: 0.1, y1: 0.5}, target: {x: 0, y0: 0.1, y1: 0.2}, group: 10}, | |
| {source: {x: 2, y0: 0.0, y1: 0.1}, target: {x: 0, y0: 0.0, y1: 0.1}, group: 11} | |
| ]; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| svg.selectAll(".link") | |
| .data(links) | |
| .enter().append("path") | |
| .attr("class", "link") | |
| .attr("d", link() | |
| .angle(function(d) { return angle(d.x); }) | |
| .startRadius(function(d) { return radius(d.y0); }) | |
| .endRadius(function(d) { return radius(d.y1); })) | |
| .style("fill", function(d) { return color(d.group); }); | |
| svg.selectAll(".axis") | |
| .data(d3.range(3)) | |
| .enter().append("g") | |
| .attr("class", "axis") | |
| .attr("transform", function(d) { return "rotate(" + degrees(angle(d)) + ")"; }) | |
| .selectAll("line") | |
| .data(["stroke", "fill"]) | |
| .enter().append("line") | |
| .attr("class", function(d) { return d; }) | |
| .attr("x1", radius.range()[0]) | |
| .attr("x2", radius.range()[1]); | |
| function degrees(radians) { | |
| return radians / Math.PI * 180 - 90; | |
| } | |
| </script> |
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| function link() { | |
| // Exposed variables | |
| var _ = { source : function(d) { return d.source; }, | |
| target : function(d) { return d.target; }, | |
| angle : function(d) { return d.angle; }, | |
| startRadius : function(d) { return d.radius; }, | |
| endRadius : function(d) { return d.radius; }, | |
| arcOffset : -Math.PI / 2 | |
| }; | |
| d3.expose.call(link,_) | |
| function link(d, i) { | |
| var s = node(_.source, this, d, i), | |
| t = node(_.target, this, d, i), | |
| x; | |
| if (t.a < s.a) x = t, t = s, s = x; | |
| if (t.a - s.a > Math.PI) s.a += 2 * Math.PI; | |
| var a1 = s.a + (t.a - s.a) / 3, | |
| a2 = t.a - (t.a - s.a) / 3; | |
| return s.r0 - s.r1 || t.r0 - t.r1 | |
| ? "M" + Math.cos(s.a) * s.r0 + "," + Math.sin(s.a) * s.r0 | |
| + "L" + Math.cos(s.a) * s.r1 + "," + Math.sin(s.a) * s.r1 | |
| + "C" + Math.cos(a1) * s.r1 + "," + Math.sin(a1) * s.r1 | |
| + " " + Math.cos(a2) * t.r1 + "," + Math.sin(a2) * t.r1 | |
| + " " + Math.cos(t.a) * t.r1 + "," + Math.sin(t.a) * t.r1 | |
| + "L" + Math.cos(t.a) * t.r0 + "," + Math.sin(t.a) * t.r0 | |
| + "C" + Math.cos(a2) * t.r0 + "," + Math.sin(a2) * t.r0 | |
| + " " + Math.cos(a1) * s.r0 + "," + Math.sin(a1) * s.r0 | |
| + " " + Math.cos(s.a) * s.r0 + "," + Math.sin(s.a) * s.r0 | |
| : "M" + Math.cos(s.a) * s.r0 + "," + Math.sin(s.a) * s.r0 | |
| + "C" + Math.cos(a1) * s.r1 + "," + Math.sin(a1) * s.r1 | |
| + " " + Math.cos(a2) * t.r1 + "," + Math.sin(a2) * t.r1 | |
| + " " + Math.cos(t.a) * t.r1 + "," + Math.sin(t.a) * t.r1; | |
| } | |
| function node(method, thiz, d, i) { | |
| var node = method.call(thiz, d, i), | |
| a = +(typeof _.angle === "function" ? _.angle.call(thiz, node, i) : _.angle) + _.arcOffset, | |
| r0 = +(typeof _.startRadius === "function" ? _.startRadius.call(thiz, node, i) : _.startRadius), | |
| r1 = (_.startRadius === _.endRadius ? r0 : +(typeof _.endRadius === "function" ? _.endRadius.call(thiz, node, i) : _.endRadius)); | |
| return {r0: r0, r1: r1, a: a}; | |
| } | |
| return link; | |
| }; | |
| // Standard getter/setter | |
| d3.expose = function(_) { | |
| var self = this | |
| Object.keys(_).forEach(function(key) { | |
| self[key] = function(x) { | |
| if (!arguments.length) return _[key]; | |
| _[key] = x; | |
| return self; | |
| } | |
| }); | |
| } | |
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