Animated Donut Chart

Size
4,147 Kb
Views
24,288

How do I make an animated donut chart?

Designed by D3.js. What is a animated donut chart? How do you make a animated donut chart? This script and codes were developed by AaronChuo (小狂) on 11 September 2022, Sunday.

Animated Donut Chart Previews

Animated Donut Chart - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Animated Donut Chart</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div id="container"></div>
<!--滑鼠移至各弧形上觀看各地區資料--> <script src='https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Animated Donut Chart - Script Codes CSS Codes

body { font-size: 16px;
}
.group { cursor: pointer;
}
.arc { stroke: #FFF; stroke-width: 3px;
}
.arc.hover { fill: #C66; stroke-width: 0;
}
.name { text-anchor: middle;
}
.name.hover { fill: #C66;
}
.line { stroke: #C70;
}
.line.hover { stroke: #C66; stroke-width: 3px;
}
.heading { fill: #C70; font-size: 2.2em; text-anchor: middle;
}
.count { fill: #FA0; font-size: 1.6em; text-anchor: middle;
}
.heading.hover,
.count.hover { fill: #C66;
}
.arc,
.line,
.name { -webkit-transition: all 250ms ease; transition: all 250ms ease;
}

Animated Donut Chart - Script Codes JS Codes

(function(d3) { 'use strict'; // 資料來源:政府資料開放平臺 var dataset = [ {name: '北部', value: 10648802}, {name: '中部', value: 5232469}, {name: '南部', value: 6305750}, {name: '東部', value: 1015652}, {name: '外島', value: 242861} ]; var WIDTH = window.innerWidth, HEIGHT = window.innerHeight; var vis, // 整個圖表 select('g') pie, // 用來轉換資料給弧形用 d3.layout.pie() arc, // 做弧形用 d3.svg.arc() heading, // 標題 colors = ['#FC0', '#EB0', '#DA0', '#C90', '#B80'], // 弧形用到的顏色 pickColor, // 顏色選擇函式 reqId, // 註冊瀏覽器動畫用 count = 0, // 給動畫跑計數用 radius = Math.min(WIDTH, HEIGHT) / 2, // 甜甜圈圖的半徑 outerRadius = radius / 2, // 甜甜圈圖的外半徑 innerRadius = radius / 2.8, // 甜甜圈圖的內半徑 // 計算所有人口的總和 (singleton) total = (function() { for(var sum = 0, i = 0; i < dataset.length; i++) { sum += dataset[i].value; } return sum; })(); // 初始化圖表 var init = function() { vis = d3.select('#container') .append('svg:svg') .attr('width', WIDTH) .attr('height', HEIGHT) .append('g') .attr('transform', 'translate('+ WIDTH / 2 + ',' + HEIGHT / 2 +')'); pie = d3.layout.pie() .sort(null) .startAngle(0) .endAngle(2 * Math.PI) .value(function(d) { return d.value; }); arc = d3.svg.arc().innerRadius(innerRadius).outerRadius(outerRadius); pickColor = d3.scale.ordinal().range(colors); vis.selectAll('g') .data(pie(dataset)) .enter() .append('svg:g') .attr('class', 'group') .on('mouseover', mouseOverHandler) .on('mouseout', mouseOutHandler) .append('path') .attr('class', 'arc') .attr('fill', function(d, i) { return pickColor(i); }) .transition() .delay(function(d, i) { return i * 500; }) .duration(500) .attrTween('d', angleTween); vis.selectAll('g') .append('svg:text') .attr('class', 'name') .attr('dy', 6) .attr('fill', '#FFF') .attr('transform', function(d) { return 'translate(' + arc.outerRadius(outerRadius * 2.5).centroid(d)[0] + ',' + arc.outerRadius(outerRadius * 2.5).centroid(d)[1] + ')'; }) .transition() .delay(function(d, i) { return i * 500 + 500; }) .duration(500) .ease('cubic-in-out') .attrTween('fill', fillTween) .text(function(d) { return d.data.name; }) .style('font-size', radius * 0.06 + 'px'); vis.selectAll('g') .append('svg:line') .attr('x1', function(d) { return arc.outerRadius(outerRadius * 1.3).centroid(d)[0]; }) .attr('y1', function(d) { return arc.outerRadius(outerRadius * 1.3).centroid(d)[1]; }) .transition() .delay(function(d, i) { return i * 500 + 500; }) .duration(500) .attrTween('x2', xTween) .attrTween('y2', yTween) .attr('class', 'line'); vis.append('svg:text') .attr('class', 'heading') .style('font-size', 5 + radius * 0.1 + 'px') .text('台灣總人口'); vis.append('svg:text') .attr('class', 'count') .attr('dy', 20 + radius * 0.05) .style('font-size', radius * 0.08 + 'px'); runCounter(); }; // 為數字加上逗點 var numericFormat = function(num) { var reg = /(\d+)(\d{3})/, num = '' + parseInt(num); while(reg.test(num)) { num = num.replace(reg, '$1' + ',' + '$2'); } return num; }; // 計數效果 var runCounter = function() { count += 56789; if(count < total) { d3.select('.count').text(numericFormat(count) + '人'); reqId = requestAnimationFrame(runCounter); } else { d3.select('.count').text(numericFormat(total) + '人'); cancelAnimationFrame(reqId); } }; // 滑鼠移至弧形上的效果 var mouseOverHandler = function(d) { cancelAnimationFrame(reqId); d3.select(this).selectAll('path, text, line').classed({'hover': true});	d3.select(this).select('.name').style('font-size', radius * 0.07 + 'px'); d3.select('.heading').classed({'hover': true}).text(d.data.name); d3.select('.count').classed({'hover': true}).text(numericFormat(d.value) + '人'); }; // 滑鼠離開弧形後的效果 var mouseOutHandler = function() { reqId = requestAnimationFrame(runCounter); d3.select(this).selectAll('path, text, line').classed({'hover': false});	d3.select(this).select('.name').style('font-size', radius * 0.06 + 'px'); d3.select('.heading').classed({'hover': false}).text('台灣總人口'); d3.select('.count').classed({'hover': false}); }; // 弧形角度的動畫 var angleTween = function(d) { var i = d3.interpolate(d.startAngle, d.endAngle); return function(t) { d.endAngle = i(t); arc.innerRadius(innerRadius).outerRadius(outerRadius); return arc(d); } }; // 文字顏色的動畫 var fillTween = function(d) { var i = d3.interpolate('#FFF', '#C70'); return function(t) { return i(t); } }; // 線條的動畫 (x座標) var xTween = function(d) { var i = d3.interpolate(arc.outerRadius(outerRadius * 1.3).centroid(d)[0], arc.outerRadius(outerRadius * 2.2).centroid(d)[0]); return function(t) { return i(t); } }; // 線條的動畫 (y座標) var yTween = function(d) { var i = d3.interpolate(arc.outerRadius(outerRadius * 1.3).centroid(d)[1], arc.outerRadius(outerRadius * 2.2).centroid(d)[1]); return function(t) { return i(t); } }; return init();
})(window.d3);
// Author: Aaron Cho (aka 小狂)
Animated Donut Chart - Script Codes
Animated Donut Chart - Script Codes
Home Page Home
Developer AaronChuo (小狂)
Username aaronchuo
Uploaded September 11, 2022
Rating 3.5
Size 4,147 Kb
Views 24,288
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AaronChuo (小狂) (aaronchuo) Script Codes
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