svg+css实现环形彩色统计图表效果代码-html代码-BFW代码库

代码语言：html

所属分类：图表

代码描述：svg+css实现环形彩色统计图表效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<html>
<head>
    <style>
@import url(//fonts.googleapis.com/css?family=Oswald:400);

        body {
            background: #222428;
            font-family: "Oswald", sans-serif;
        }
        h1 {
            color: #eee;
            text-align: center;
            margin: 20px 0;
            text-transform: uppercase;
        }
        .chart {
            margin: 0 auto;
            width: 450px;
            height: 450px;
            position: relative;
        }
        .doughnutTip {
            position: absolute;
            float: left;
            min-width: 30px;
            max-width: 300px;
            padding: 5px 15px;
            border-radius: 1px;
            background: rgba(0,0,0,.8);
            color: #ddd;
            font-size: 17px;
            text-shadow: 0 1px 0 #000;
            text-transform: uppercase;
            text-align: center;
            line-height: 1.3;
            letter-spacing: .06em;
            box-shadow: 0 1px 3px rgba(0,0,0,0.5);
            transform: all .3s;
            pointer-events: none;
        }
        .doughnutTip:after {
            position: absolute;
            left: 50%;
            bottom: -6px;
            content: "";
            height: 0;
            margin: 0 0 0 -6px;
            border-right: 5px solid transparent;
            border-left: 5px solid transparent;
            border-top: 6px solid rgba(0,0,0,.7);
            line-height: 0;
        }
        .doughnutSummary {
            position: absolute;
            top: 50%;
            left: 50%;
            color: #d5d5d5;
            text-align: center;
            text-shadow: 0 -1px 0 #111;
            cursor: default;
        }
        .doughnutSummaryTitle {
            position: absolute;
            top: 50%;
            width: 100%;
            margin-top: -27%;
            font-size: 22px;
            letter-spacing: .06em;
        }
        .doughnutSummaryNumber {
            position: absolute;
            top: 50%;
            width: 100%;
            margin-top: -15%;
            font-size: 55px;
        }
        .chart path:hover {
            opacity: .65;
        }
    </style>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-3.2.1.min.js"></script>
</head>
<body>

    <div id="doughnutChart" class="chart">

    </div>

    <script>; (function($, undefined) {
        $.fn.drawDoughnutChart = function(data, options) {
            var $this = this,
            W = $this.width(),
            H = $this.height(),
            centerX = W/2,
            centerY = H/2,
            cos = Math.cos,
            sin = Math.sin,
            PI = Math.PI,
            settings = $.extend({
                segmentShowStroke: true,
                segmentStrokeColor: "#0C1013",
                segmentStrokeWidth: 1,
                baseColor: "rgba(0,0,0,0.5)",
                baseOffset: 4,
                edgeOffset: 10, //offset from edge of $this
                percentageInnerCutout: 75,
                animation: true,
                animationSteps: 90,
                animationEasing: "easeInOutExpo",
                animateRotate: true,
                tipOffsetX: -8,
                tipOffsetY: -45,
                tipClass: "doughnutTip",
                summaryClass: "doughnutSummary",
                summaryTitle: "TOTAL:",
                summaryTitleClass: "doughnutSummaryTitle",
                summaryNumberClass: "doughnutSummaryNumber",
                beforeDraw: function() {},
                afterDrawed: function() {},
                onPathEnter: function(e, data) {},
                onPathLeave: function(e, data) {}
            }, options),
            animationOptions = {
                linear: function (t) {
                    return t;
                },
                easeInOutExpo: function (t) {
                    var v = t < .5 ? 8*t*t*t*t: 1-8*(--t)*t*t*t;
                    return (v > 1) ? 1: v;
                }
            };
            var requestAnimFrame = function() {
                return window.requestAnimationFrame ||
                window.webkitRequestAnimationFrame ||
                window.mozRequestAnimationFrame ||
                window.oRequestAnimationFrame ||
                window.msRequestAnimationFrame ||
                function(callback) {
                    window.setTimeout(callback, 1000 / 60);
                };
            }();

            settings.beforeDraw.call($this);

            var $svg = $('<svg width="' + W + '" height="' + H + '" viewBox="0 0 ' + W + ' ' + H + '" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"></svg>').appendTo($this),
            $paths = [],
            easingFunction = animationOptions[settings.animationEasing],
            doughnutRadius = Min([H/2, W/2]) - settings.edgeOffset,
            cutoutRadius = doughnutRadius * (settings.percentageInnerCutout/100),
            segmentTotal = 0;

            //Draw base doughnut
            var baseDoughnutRadius = doughnutRadius + settings.baseOffset,
            baseCutoutRadius = cutoutRadius - settings.baseOffset;
            var drawBaseDoughnut = function() {
                var svgBase = document.createElementNS('http://www.w3.org/2000/svg', 'path'),
                $svgBase = $(svgBase).appendTo($svg);
                //Calculate values for the path.
                //We needn't calculate startRadius, segmentAngle and endRadius, because base doughnut doesn't animate.
                var startRadius = -1.570, // -Math.PI/2
                segmentAngle = 6.2831, // 1 * ((99.9999/100) * (PI*2)),
                endRadius = 4.7131, // startRadius + segmentAngle
                startX = centerX + cos(startRadius) * baseDoughnutRadius,
                startY = centerY + sin(startRadius) * baseDoughnutRadius,
                endX2 = centerX + cos(startRadius) * baseCutoutRadius,
                endY2 = centerY + sin(startRadius) * baseCutoutRadius,
                endX = centerX + cos(endRadius) * baseDoughnutRadius,
                endY = centerY + sin(endRadius) * baseDoughnutRadius,
                startX2 = centerX + cos(endRadius) * baseCutoutRadius,
                startY2 = centerY + sin(endRadius) * baseCutoutRadius;
                var cmd = [
                    'M', startX, startY,
                    'A', baseDoughnutRadius, baseDoughnutRadius, 0, 1, 1, endX, endY,
                    'L', startX2, startY2,
                    'A', baseCutoutRadius, baseCutoutRadius, 0, 1, 0, endX2, endY2, //reverse
                    'Z'
                ];
                $svgBase[0].setAttribute("d", cmd.join(' '));
                $svgBase[0].setAttribute("fill", settings.baseColor);
            }();

            //Set up pie segments wrapper
            var pathGroup = document.createElementNS('http://www.w3.org/2000/svg', 'g');
            var $pathGroup = $(pathGroup).appendTo($svg);
            $pathGroup[0].setAttribute("opacity", 0);

            //Set up tooltip
            var $tip = $('<div class="' + settings.tipClass + '" />').appendTo('body').hide(),
            tipW = $tip.width(),
            tipH = $tip.height();

            //Set up center text area
            var summarySize = (cutoutRadius - (doughnutRadius .........完整代码请登录后点击上方下载按钮下载查看