Created
April 4, 2012 04:08
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Bar chart to polar area chart
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<!DOCTYPE html> | |
<html > | |
<head> | |
<script type="text/javascript" src="http://github.com/mbostock/d3/raw/v1.8.2/d3.js"></script> | |
</head> | |
<body> | |
<div id="vis_div_id1" style="position:absolute;"></div> | |
<div id="vis_div_id2" style="position:absolute;left:500px"></div> | |
<script type="text/javascript"> | |
var data = d3.range(10).map(Math.random); | |
var w = 400, | |
h = 250, | |
barW = w / data.length-10, | |
barH = function(d, i){return h / d3.max(data)*d}, | |
barX = function(d, i){return w / data.length * i;}, | |
barY = function(d, i){return h - barH(d);}; | |
var visSVG = d3.select("#vis_div_id1") | |
.append("svg:svg") | |
.attr("width", w*1.5) | |
.attr("height", h*2); | |
var barsSVG = visSVG.selectAll("g.bar") | |
.data(data) | |
.enter().append("svg:g") | |
.attr("class", "bar") | |
.attr("transform", function(d, i) { return "translate("+barX(d, i) + ", "+barY(d, i)+") rotate(0)";}); | |
barsSVG.append("svg:path") | |
.attr("stroke", "steelblue") | |
.attr("fill-opacity", 0.2) | |
.attr("fill", "steelblue") | |
.attr("d", function(d, i){return "M0 0L"+barW+" 0L"+barW+" "+barH(d, i)+"L0 "+barH(d, i)+" Z"}) | |
.attr("width", barW) | |
.attr("height", barH); | |
barsSVG.transition() | |
.delay(function(d, i){return 400-i*40}) | |
.duration(1500) | |
.attr("transform", function(d, i) { return "translate("+(w/2) + ", "+(barY(d, i))+") rotate("+36*i+", "+barW/2+", "+barH(d, i)+")"}); | |
var outWidth = function(d, i){ | |
return Math.tan(((360/data.length)/2)/360*(2*Math.PI))*(barH(d, i)); | |
}; | |
var barH2 = function(d, i){return Math.sqrt((barW*barH(d, i))/Math.tan((36*Math.PI/180/2)))}; | |
var barW2 = function(d, i){return Math.tan((36*Math.PI/180/2))*barH2(d,i)}; | |
barsSVG.selectAll("path") | |
.transition() | |
.delay(1500) | |
.duration(500) | |
.attr("d", function(d, i){return "M"+(barW/2-barW2(d, i))+" "+(barH(d, i)-barH2(d, i))+ | |
"L"+(barW/2+barW2(d, i))+" "+(barH(d, i)-barH2(d, i))+ | |
"L"+barW/2+" "+barH(d, i)+ | |
"L"+barW/2+" "+barH(d, i)+ | |
"Z"}); | |
var visSVG = d3.select("#vis_div_id2") | |
.append("svg:svg") | |
.attr("width", w*1.5) | |
.attr("height", h*2); | |
var barsSVG = visSVG.selectAll("g.bar") | |
.data(data) | |
.enter().append("svg:g") | |
.attr("class", "bar") | |
.attr("transform", function(d, i) { return "translate("+barX(d, i) + ", "+barY(d, i)+") rotate(0)";}); | |
barsSVG.append("svg:path") | |
.attr("stroke", "steelblue") | |
.attr("fill-opacity", 0.2) | |
.attr("fill", "steelblue") | |
.attr("d", function(d, i){return "M0 0L"+barW+" 0L"+barW+" "+barH(d, i)+"L0 "+barH(d, i)+" Z"}) | |
.attr("width", barW) | |
.attr("height", barH); | |
barsSVG.transition() | |
.delay(function(d, i){return 400-i*40}) | |
.duration(1500) | |
.attr("transform", function(d, i) { return "translate("+(w/2) + ", "+(barY(d, i))+") rotate("+36*i+", "+barW/2+", "+barH(d, i)+")"}); | |
var outWidth = function(d, i){ | |
return Math.tan(((360/data.length)/2)/360*(2*Math.PI))*(barH(d, i)); | |
}; | |
var barH2 = function(d, i){return Math.sqrt((barW*barH(d, i))/Math.tan((36*Math.PI/180/2)))}; | |
var barW2 = function(d, i){return Math.tan((36*Math.PI/180/2))*barH2(d,i)}; | |
barsSVG.selectAll("path") | |
.transition() | |
.delay(1500) | |
.duration(500) | |
.attr("d", function(d, i){return "M"+(barW/2-outWidth(d, i))+ | |
" 0L"+(barW/2+outWidth(d, i))+" 0L"+barW/2+" "+barH(d, i)+ | |
"L"+barW/2+" "+barH(d, i)+" Z"}); | |
</script> | |
</body> | |
</html> |
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