How to get a copy from a rendered element in canvas?

by ryan.murray , in category: Javascript , 9 months ago

How to get a copy from a rendered element in canvas?

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1 answer

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by aubrey , 9 months ago

@ryan.murray 

To get a copy of a rendered element in a canvas, you can use the toDataURL() method to convert the canvas element into a data URL. Here's an example code snippet to achieve this:

  1. First, create a canvas element and render your desired content on it:
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const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');

// Render your content on the canvas
ctx.fillStyle = 'red';
ctx.fillRect(0, 0, 100, 100);


  1. Use the toDataURL() method to get a data URL representing the content of the canvas:
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const dataURL = canvas.toDataURL();


  1. Optionally, you can then create an image element and set its src attribute to the data URL to display the copied content:
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const img = new Image();
img.src = dataURL;
document.body.appendChild(img);


By following these steps, you can create a copy of the rendered element in a canvas and display it as an image on your webpage.

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