如何在react-highcharts中使用图表工具提示格式化程序? [英] How can I use chart tooltip formatter in react-highcharts?

问题描述

如何使用图表工具提示格式化程序?我正在为highcharts使用react包装器.
我有这样的配置:

how can I use chart tooltip formatter? I am using react wrapper for highcharts.
I have config like this:

const CHART_CONFIG = {
    ...
    tooltip:  
    {
        formatter: (tooltip) => {
            var s = '<b>' + this.x + '</b>';
            _.each(this.points, () => {
                s += '<br/>' + this.series.name + ': ' + this.y + 'm';
            });
            return s;
        },
        shared: true
    },
    ...
}    

但是我无法使用此关键字访问图表范围，也无法从工具提示参数中获取要点.谢谢

But I can't access chart scope using this keyword and also I can't get point from tooltip param. Thanks

推荐答案

我已经遇到此问题.我已经解决了这一问题，方法是创建一个函数来格式化工具提示，然后将默认值应用于所需的数据.

I've already encountered this problem. I've solved it by creating a function to format the tooltip, and applying default values to the data I wanted.

这是一个生动的例子，代码如下:

import React, { Component } from 'react';
import { render } from 'react-dom';
import ReactHighcharts from 'react-highcharts';
import './style.css';

class App extends Component {
  static formatTooltip(tooltip, x = this.x, points = this.points) {
    let s = `<b>${x}</b>`;
    points.forEach((point) =>
      s += `<br/>${point.series.name}: ${point.y}m`
    );

    return s;
  }

  static getConfig = () => ({
    xAxis: {
      categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },
    tooltip: {
      formatter: App.formatTooltip,
      shared: true,
    },
    series: [{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }, {
        data: [194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4]
    }],
  })

  render() {
    return (
      <div>
        <ReactHighcharts config={App.getConfig())} />
      </div>
    );
  }
}

render(<App />, document.getElementById('root'));

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