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Change Chart Type at Runtime

FusionCharts Suite XT includes advanced features that let you add more context to your chart and make data visualization simpler. These features include chart updates, update chart type at runtime, and events.

This article focuses on how you can change the chart type of the chart at runtime using React props object. The chart types used in the sample is:

  • Column 2D
  • Bar 2D
  • Pie 2D

A chart configured to change the chart type, is shown below:

FusionCharts will load here..
{
    "chart": {
        "caption": "Countries With Most Oil Reserves [2017-18]",
        "subCaption": "In MMbbl = One Million barrels",
        "xAxisName": "Country",
        "yAxisName": "Reserves (MMbbl)",
        "numberSuffix": "K",
        "theme": "fusion"
    },
    "data": [
        {
            "label": "Venezuela",
            "value": "290"
        },
        {
            "label": "Saudi",
            "value": "260"
        },
        {
            "label": "Canada",
            "value": "180"
        },
        {
            "label": "Iran",
            "value": "140"
        },
        {
            "label": "Russia",
            "value": "115"
        },
        {
            "label": "UAE",
            "value": "100"
        },
        {
            "label": "US",
            "value": "30"
        },
        {
            "label": "China",
            "value": "30"
        }
    ]
}

The full code of the above sample is given below:

import React, { Component } from 'react';
import ReactDOM from 'react-dom';
import FusionCharts from 'fusioncharts';
import Charts from 'fusioncharts/fusioncharts.charts';
import ReactFC from 'react-fusioncharts';
import FusionTheme from 'fusioncharts/themes/fusioncharts.theme.fusion';

ReactFC.fcRoot(FusionCharts, Charts, FusionTheme);

const chartConfigs = {
    type: 'column2d',
    width: 700,
    height: 400,
    dataFormat: 'json',
    dataSource: {
        // Chart configuration
        "chart": {
            "caption": "Countries With Most Oil Reserves [2017-18]",
            "subCaption": "In MMbbl = One Million barrels",
            "xAxisName": "Country",
            "yAxisName": "Reserves (MMbbl)",
            "numberSuffix": "K",
            "theme": "fusion"
        },
        // Chart data
        "data": [{
            "label": "Venezuela",
            "value": "290"
        }, {
            "label": "Saudi",
            "value": "260"
        }, {
            "label": "Canada",
            "value": "180"
        }, {
            "label": "Iran",
            "value": "140"
        }, {
            "label": "Russia",
            "value": "115"
        }, {
            "label": "UAE",
            "value": "100"
        }, {
            "label": "US",
            "value": "30"
        }, {
            "label": "China",
            "value": "30"
        }]
    },
};

class Chart extends Component {
  constructor(props) {
    super(props);

    this.state = {
      chart: {},
      currentVal: 'column2d'
    };

    this.renderComplete = this.renderComplete.bind(this);
    this.radioHandler = this.radioHandler.bind(this);
  }

  renderComplete(chart) {
    this.setState({ chart });
  }

  // Handler for radio buttons to change chart type.
  radioHandler(e) {
    this.state.chart.chartType(e.currentTarget.value);
    this.setState({
      currentVal: e.currentTarget.value
    });
  }

  render() {
    return (
      <div>
        <ReactFC {...chartConfigs} onRender={this.renderComplete} />
        <br />
        <center>
          <span>Choose a chart type:</span>
          <div className="change-type">
            <div>
              <input
                type="radio"
                value="column2d"
                onChange={this.radioHandler}
                checked={this.state.currentVal === 'column2d'} />
              <label>Column 2D Chart</label>
            </div>
            <div>
              <input
                type="radio"
                value="bar2d"
                onChange={this.radioHandler}
                checked={this.state.currentVal === 'bar2d'} />
              <label>Bar 2D Chart</label>
            </div>
            <div>
              <input
                type="radio"
                value="pie2d"
                onChange={this.radioHandler}
                checked={this.state.currentVal === 'pie2d'} />
              <label>Pie 2D Chart</label>
            </div>
          </div>
        </center>
      </div>
    );
  }
}

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

The above chart has been rendered using the following steps:

  1. Include the necessary libraries and components using import. For example, react-fusioncharts, fusioncharts, etc.

  2. Store the chart configuration in a JSON object. In the JSON object:

    • Set the chart type as column2d. Find the complete list of chart types with their respective alias here.
    • Set the width and height of the chart in pixels.
    • Set the dataFormat as JSON.
    • Embed the json data as the value of dataSource.

  3. Create a component to include react-fusioncharts component.

  4. In the above sample:

    • Use the renderComplete to render the charts at runtime.
    • Use the radioHander for radio buttons to change the chart type.

  5. Add the render() function to create the radio buttons inside the <div>.

  6. Create a DOM element and the react-fusioncharts component is passed directly to the ReactDOM.render() method.