ボタンをクリックすると円グラフになります。
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August 29, 2015 14:23
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Pie Chart Button
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<!DOCTYPE html> | |
<meta charset="utf-8" /> | |
<style> | |
html, body { | |
margin: 0px; | |
padding: 0px; | |
} | |
svg { | |
border: 1px solid; | |
background-color: #1a2126; | |
width:960px; | |
height: 500px; | |
} | |
.btn:hover { | |
fill:#3dcc28; | |
} | |
</style> | |
<body> | |
<svg> | |
<defs> | |
<filter id = "light"> | |
<feGaussianBlur in="SourceAlpha" stdDeviation="8" result="blur"/> | |
<feSpecularLighting in="blur" result = "specOut" specularConstant = "1.2" specularExponent="12" lighting-color="#bbbbbb"> | |
<feDistantLight azimuth="45" elevation ="45"/> | |
</feSpecularLighting> | |
<feComposite in="SourceGraphic" in2="specOut" operator="arithmetic" k1="0" k2="1" k3="1" k4="0" /> | |
</filter> | |
</defs> | |
</svg> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
<script> | |
(function(){ | |
"use strict"; | |
var w = 960; //ステージの横幅 | |
var pieChartSize = 100; //チャートのサイズ | |
var pieChartWidth = 10; //チャートの太さ | |
var margin = 10 //チャート間のマージン | |
var radius = (pieChartSize-(margin*2))/2; //チャートの半径 | |
var btnSize = radius; //ボタンのサイズ | |
//データセットをランダムに作成 | |
var data = d3.range(45).map(function() { | |
return d3.range(Math.floor(2+Math.random() * 5)).map(function(){ | |
return Math.floor(1+Math.random() * 10); | |
}).sort(d3.descending) | |
}); | |
//pieChartのセルカラー | |
var color = ['#28cc57', '#89f093', '#19d02c', '#3d9f47', '#1af430', '#f31b1b', '#8828cc']; | |
//アークパスジェネレーター | |
var arc = d3.svg.arc() | |
.outerRadius(radius) | |
.innerRadius(radius - pieChartWidth); | |
//pieChartレイアウト | |
var pie = d3.layout.pie(); | |
var svg = d3.select('svg') | |
.attr('width', 960) | |
.attr('height', 500) | |
.append('g') | |
.attr('filter',"url(#light)") | |
//pieChartを表示するグループ要素 | |
var pieChart = svg.selectAll('g.pie') | |
.data(data) | |
.enter() | |
.append('g') | |
.datum(function(d){ return d }) | |
.attr('class', function(d, i ){ return 'pie chart'+i}) | |
.attr('transform', function(d, i){ | |
//横幅いっぱいまで描画したら次の行へ移動 | |
var y = (pieChartSize) * Math.floor(i/9) + radius + margin; | |
var x = (i%9) * (pieChartSize+margin) + radius; | |
return 'translate('+ [x, y] + ')'; | |
}); | |
//装飾用のベースcircle | |
pieChart.append('circle').attr({ | |
'r': radius, | |
'fill': '#aeb2b4' | |
}); | |
pieChart.append('circle').attr({ | |
'r': radius - pieChartWidth, | |
'fill': '#1a2126' | |
}); | |
//ボタン | |
var btn = pieChart.append('circle').attr({ | |
'class': 'btn', | |
'r': btnSize, | |
'fill': '#aeb2b4' | |
}) | |
.on('click', drawArcs) | |
//ボタンがクリックされたらpiechartを描画する | |
function drawArcs(d, i){ | |
//ボタンアニメーション | |
d3.select(this).transition().duration(500).attr({ | |
'r': btnSize/2, | |
'fill': '#3dcc28' | |
}).call(endall, function(){ | |
d3.selectAll('g.arc').remove(); | |
//pieChartをアニメーションしつつ描く | |
d3.select('.chart'+i).selectAll('g.arc') | |
.data(function(d){ return pie(d); }) | |
.enter() | |
.append('path') | |
.attr('fill', function(d, i) { return color[i]; }) | |
.transition() | |
.duration(1500) | |
.ease('elastic') | |
.attrTween('d', tweenPie) | |
}) | |
} | |
//pieChart用tween関数 | |
function tweenPie(b) { | |
b.innerRadius = 0; | |
var i = d3.interpolate({startAngle: 0, endAngle: 0}, b); | |
return function(t) { return arc(i(t)); }; | |
} | |
//トランジション終了時にcallbackを呼ぶヘルパー関数 | |
function endall(transition, callback) { | |
var n = 0; | |
transition | |
.each(function() { ++n; }) | |
.each('end', function() { if (!--n) callback.apply(this, arguments); }); | |
}; | |
})(); | |
</script> |
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