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<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width,initial-scale=1.0" /> <title>Echarts Example</title> </head> <body> <div id="main" style="width: 600px;height: 400px"></div> <script src="//cdn.bootcss.com/echarts/4.5.0/echarts.js"></script> <script type="text/javascript"> var myChart = echarts.init(document.getElementById('main')); var data = []; var max = 300; for (var i = 0; i <= max; i++) { var angle = Math.ceil(i * ((360 * 6) / max)); // 根据阿基米德螺旋公式: // r = a + b * θ var r = angle; data.push([r, angle]); } var option = { toolbox: { feature: { saveAsImage: {}, }, }, polar: {}, angleAxis: { type: 'value', startAngle: 0, min: 0, max: 360, }, radiusAxis: {}, series: [{ showSymbol: false, coordinateSystem: 'polar', type: 'line', data: data }], }; myChart.setOption(option); </script> </body> </html>
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