G2 - 分块热力图(四边形)

             <!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        <title>分块热力图(四边形)</title>
<script src="https://a.alipayobjects.com/jquery/jquery/1.11.1/jquery.js"></script>
<script src="https://gw.alipayobjects.com/as/g/datavis/g2/2.3.13/index.js"></script>
      </head>
      <body>
          <div id="c1"></div>
 <script>
$.getJSON('../../../static/data/diamond.json',function (data) {
    var Stat = G2.Stat;
    var chart = new G2.Chart({
      id: 'c1',
      forceFit: true,
      height: 450
    });
    chart.source(data);
    chart.tooltip({
      title: null
    });
    chart.polygon()
      .position(Stat.bin.rect('carat*price', 0.02))
      .color(Stat.summary.count(), 'red'); // 指定颜色的计算方式，G2 默认提供了多种的计算方式：'red', 'blue', 'green', 'rainbow', 'hue', 'lightness', 'brightness'
    chart.render();
});

</script>

      </body>
    </html>
          
        

分块热力图(四边形)

分块的热力图用于表现x,y都是连续数据，对x,y进行划分封装成一个个的方块，使用颜色的深浅标示数据的大小。了解更多

<!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        <title>分块热力图(四边形)</title>
        <script src="https://unpkg.com/react@15/dist/react.min.js"></script>
        <script src="https://unpkg.com/react-dom@15/dist/react-dom.min.js"></script>
        <script src="https://a.alipayobjects.com/g/datavis/g2/2.3.13/g2.js"></script>
        <script src="https://unpkg.com/g2-react@1.2.0/dist/index.js"></script>
        <script src="https://cdn.bootcss.com/babel-core/5.8.38/browser.min.js"></script>
        <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
      </head>
      <body>
          <div id="c1"></div>
 <script type="text/babel">
    const Chart = createG2(chart => {
      const Stat = G2.Stat;
      chart.tooltip({
        title: null
      });
      chart.polygon()
        .position(Stat.bin.rect('carat*price', 0.02))
        .color(Stat.summary.count(), 'red'); // 指定颜色的计算方式，G2 默认提供了多种的计算方式：'red', 'blue', 'green', 'rainbow', 'hue', 'lightness', 'brightness'
      chart.render();
    });

const MyComponent = React.createClass({
      getInitialState() {
        return {
          data: [],
          forceFit: true,
          height: 450
        };
      },
      componentDidMount: function() {
        const self = this;
        axios.get('../../../static/data/diamond.json').then(function (response) {
          self.setState({
            data: response.data
          });
        }).catch(function (error) {
          console.log(error);
        });
      },
      render() {
        if (this.state.data.length === 0) {
          return (<div></div>);
        } else {
          return (
            <div>
              <Chart
                data={this.state.data}
                width={this.state.width}
                height={this.state.height}
                plotCfg={this.state.plotCfg}
                forceFit={this.state.forceFit} />
            </div>
          );
        }
      },
    });
    ReactDOM.render(<MyComponent />, document.getElementById('c1'));
</script>

</body>
    </html>