Package Exports

recharts-to-png

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Readme

recharts-to-png

Converts a Recharts chart to PNG.

Inspired by these Stack Overflow questions and answers from peter.bartos and AlbertMunichMar.

Demo

See a demo using recharts-to-png alongside FileSaver.

Install

npm install recharts-to-png

Usage

await getPngData(chart, fill);

chart: RechartsChart - AreaChart | BarChart | PieChart | etc.

fill: background color (optional) - string | CanvasGradient | CanvasPattern

Example

import { getPngData } from "recharts-to-png";

...

export const App = () => {
  // The chart that we want to download the PNG for.
  const [chart, setChart] = React.useState();

  const handleDownload = React.useCallback(async () => {
    // Send the chart to getPngData
    const pngData = await getPngData(chart);
    // Can also pass an optional fill parameter for the background color
    // const pngData = await getPngData(chart, '#000000');
    // Use FileSaver to download the PNG
    FileSaver.saveAs(pngData, "test.png");
  }, [chart]);

  const data = [...];

  return (
    <LineChart
      ref={ref => setChart(ref)} // Save the ref of the chart
      data={data}
      height={300}
      width={600}
      margin={{ top: 5, right: 30, left: 20, bottom: 25 }}
    >
      <XAxis dataKey="name" />
      <YAxis />
      <CartesianGrid strokeDasharray="3 3" />
      <Tooltip />
      <Legend />
      <Line
        type="monotone"
        dataKey="pv"
        stroke="#8884d8"
        activeDot={{ r: 8 }}
      />
      <Line type="monotone" dataKey="uv" stroke="#82ca9d" />
    </LineChart>
  );
};

export default App;