How to use plugins with chartist.js?

问题

I am using chartist.js for making pie chart component. I want to make use of legend plugin https://codeyellowbv.github.io/chartist-plugin-legend/

I am not getting the legend in my pie chart. See screenshot below

Code:

import React, { Component } from 'react';
import ChartistGraph from "react-chartist";
import Legend from "chartist-plugin-legend";

import './piechart.css';

let options = {
  width:400,
  height:500,
  labelInterpolationFnc: function(value) {
    return value[0]
  }
};


let plugin = {
    plugin:'legend'
}


class Chart extends Component {

  render(){
    return(
      <div>
          <div className="center">
          <ChartistGraph data={data} options={options} plugins={plugin} type="Pie"/>
          </div>
      </div>

    )}

}

export default Chart;

Screenshot:

回答1:

Try folowing as the chartist-plugin-legend return Chartist.plugins.legend function. You can pass options also to add customization here is link where you can read it: Link chartist-plugin-legend

let plugins = [
    Legend()
]

Made this change also as react-chartist doesnot take any props called plugins.

<ChartistGraph data={data} options={{...options, plugins}} type="Pie"/>

Now add a .css file in your directory and import it in your component file. with following content. The content is same as mentioned on the plugin page.

.ct-legend {
    position: relative;
    z-index: 10;

    li {
        position: relative;
        padding-left: 23px;
        margin-bottom: 3px;
    }

    li:before {
        width: 12px;
        height: 12px;
        position: absolute;
        left: 0;
        content: '';
        border: 3px solid transparent;
        border-radius: 2px;
    }

    li.inactive:before {
        background: transparent;
    }

    &.ct-legend-inside {
        position: absolute;
        top: 0;
        right: 0;
    }

    @for $i from 0 to length($ct-series-colors) {
        .ct-series-#{$i}:before {
            background-color: nth($ct-series-colors, $i + 1);
            border-color: nth($ct-series-colors, $i + 1);
        }
    }
}

Now you can give styling as you want. legend plugin also provides certains options that you can send. Read about it and accordingly pass in the options

回答2:

You can use the plugin by adding it on the options property, but first you need to import the ff. dependencies:

import React, { Component } from 'react';
import ChartistGraph from "react-chartist";
import Legend from "chartist-plugin-legend";

add the plugin:

let options = {
    width:400,
    height:500,
    plugins: [
        Legend()
    ]
};

Render it: <ChartistGraph data={data} options={options} type={type} />

and because the CSS is not included, you can examine the index file of the plugin here and play with it.

来源：https://stackoverflow.com/questions/50733529/how-to-use-plugins-with-chartist-js

标签

reactjs

chartist.js