How to copy the content of one HTML5 Canvas to another Canvas locally?

HTML Web Development Front End Technology

The drawImage() method is used to draw image, canvas and videos on canvas. It can also draw part of image and increase or decrease the image size.

Example

Let us see an example −

//context grabbed from your destination canvas
ctx = destinationCanvas.getContext('2d');

//drawImage() called passing the source canvas directly
dCtx.drawImage(sourceCanvas, 0, 0);

In this code, firstly the image is copied from the source canvas. The sourceCanvas can be a HTMLImageElement, HTMLVideoElement, or a HTMLCanvasElement. A canvas drawing context cannot be used as a source. If a canvas drawing context is your source canvas then there is a reference to the original canvas element on the context under context.canvas

The latter code uses drawImage() method to copy context from source canvas to the desired canvas.

Chandu yadav

Published on 20-Mar-2018 10:00:34

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