The translate() method remaps the (0, 0) position as the canvas. If you scale(2, 2) drawing will be positioned twice as far from the left and top of the canvas as you specify. If you scale a canvas, all future drawings will also be scaled. The scale() method scales the current drawing into a smaller or larger size.
To get this process you can use scale() and translate() method. In an image viewer this zoom in process is very important. In zoom in process an image get bigger in size as per requirement. That image has some width and height in case of rectangular shape and has proper dimensions according to the shape of the image. In this zooming process, an image should be zoom in from the center of the image. You are given a zoom in to particular image by using scale and translate method.
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