How to render png to a html canvas in react.js?

by edmond_brakus , in category: Javascript , 3 months ago

How to render png to a html canvas in react.js?

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1 answer

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by gilbert , 3 months ago

@edmond_brakus 

To render a PNG image to an HTML canvas in React.js, you can follow these steps:

  1. Import the PNG image file into your React component:
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import image from './image.png';


  1. Create a ref for the canvas element in your component:
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const canvasRef = React.useRef();


  1. In the component's useEffect hook, load the image onto the canvas once the component has mounted:
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React.useEffect(() => {
  const canvas = canvasRef.current;
  const ctx = canvas.getContext('2d');
  
  const img = new Image();
  img.src = image;
  
  img.onload = () => {
    ctx.drawImage(img, 0, 0);
  };
}, []);


  1. Add the canvas element to your component's render method:
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return (
  <canvas ref={canvasRef} width={500} height={500}></canvas>
);


Now, when your React component is rendered, the PNG image will be loaded onto the canvas element using the drawImage method of the canvas context.