饼图-三角 - AntV

基础饼图

饼图-三角

每个圆弧改成两个三角形

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,height=device-height">
    <title>饼图-三角</title>
    <style>::-webkit-scrollbar{display:none;}html,body{overflow:hidden;height:100%;margin:0;}</style>
</head>
<body>
<div id="mountNode"></div>
<script>/*Fixing iframe window.innerHeight 0 issue in Safari*/document.body.clientHeight;</script>
<script src="https://gw.alipayobjects.com/os/antv/pkg/_antv.g2-3.5.1/dist/g2.min.js"></script>
<script>
  var data = [{
    type: '分类一',
    value: 20
  }, {
    type: '分类二',
    value: 18
  }, {
    type: '分类三',
    value: 32
  }, {
    type: '分类四',
    value: 15
  }, {
    type: 'Other',
    value: 15
  }];

// 根据比例，获取两点之间的点
  function getPoint(p0, p1, ratio) {
    return {
      x: (1 - ratio) * p0.x + ratio * p1.x,
      y: (1 - ratio) * p0.y + ratio * p1.y
    };
  }
  var pointRatio = 0.7; // 设置开始变成三角形的位置 0.7

// 自定义 other 的图形，增加两条线
  G2.Shape.registerShape('interval', 'triangleShape', {
    draw: function draw(cfg, container) {
      var centerPoint = {
        x: cfg.points[3].x,
        y: (cfg.points[2].y + cfg.points[3].y) / 2
      };
      centerPoint = this.parsePoint(centerPoint);

var points = this.parsePoints(cfg.points);
      var tmpPoint1 = getPoint(points[0], points[3], pointRatio);
      var tmpPoint2 = getPoint(points[1], points[2], pointRatio);
      var path = [];
      path.push(['M', points[0].x, points[0].y]);
      path.push(['L', points[1].x, points[1].y]);
      path.push(['L', tmpPoint2.x, tmpPoint2.y]);
      path.push(['L', centerPoint.x, centerPoint.y]);
      path.push(['L', tmpPoint1.x, tmpPoint1.y]);
      path.push('Z');
      return container.addShape('path', {
        attrs: {
          fill: cfg.color,
          path: path,
          lineWidth: 1,
          stroke: 'white'
        }
      });
    }
  });

var chart = new G2.Chart({
    container: 'mountNode',
    forceFit: true,
    height: window.innerHeight
  });

chart.source(data);
  chart.coord('theta', {
    radius: 0.8
  });
  chart.intervalStack().position('value').color('type').shape('triangleShape').label('type');

chart.render();
</script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,height=device-height">
    <title>饼图-三角</title>
    <style>::-webkit-scrollbar{display:none;}html,body{overflow:hidden;height:100%;margin:0;}</style>
</head>
<body style="background: #1f1f1f;">
<div id="mountNode"></div>
<script>/*Fixing iframe window.innerHeight 0 issue in Safari*/document.body.clientHeight;</script>
<script src="https://gw.alipayobjects.com/os/antv/pkg/_antv.g2-3.5.1/dist/g2.min.js"></script>
<script>G2.Global.setTheme('dark');</script>
<script>
  var data = [{
    type: '分类一',
    value: 20
  }, {
    type: '分类二',
    value: 18
  }, {
    type: '分类三',
    value: 32
  }, {
    type: '分类四',
    value: 15
  }, {
    type: 'Other',
    value: 15
  }];

var chart = new G2.Chart({
    container: 'mountNode',
    forceFit: true,
    height: window.innerHeight
  });

chart.source(data);
  chart.coord('theta', {
    radius: 0.8
  });
  chart.intervalStack().position('value').color('type').shape('triangleShape').label('type');

chart.render();
</script>
</body>
</html>

图表简介

每个圆弧改成两个三角形

了解更多

图表用法

可以通过自定义图形的方式，增加饼图之间的空白。

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