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How can I force an image to maintain aspect ratio in WPF?

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image

wpf

xaml

I have an image in a WPF window. When I resize the window the image resizes with it. Is it possible to preserve the aspect ratio when the image is resizing, so it doesn't look squashed if the window is too narrow? If so, how?

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DaveDev Avatar asked Apr 09 '13 15:04

DaveDev


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How do you maintain the aspect ratio of an image?

By setting the width property to 100%, you are telling the image to take up all the horizontal space that is available. With the height property set to auto, your image's height changes proportionally with the width to ensure the aspect ratio is maintained. The end result is an image that scales up or down perfectly.

How do you keep aspect ratio when resizing?

Press-and-hold the Shift key, grab a corner point, and drag inward to resize the selection area. Because you're holding the Shift key as you scale, the aspect ratio (the same ratio as your original photo) remains exactly the same.

How do I resize an image in WPF?

The ScaleTransform is used to scale an image. The ScaleX and ScaleY properties are used to resize the image by the given factor. For example, value 0.5 reduces the image size by 50% and value 1.50 stretches image by 150%. The CenterX and CenterY properties are used to set the point that is the center of the scaling.

Why is it important to maintain aspect ratios when resizing an image?

When scaling your image, it's crucial to maintain the ratio of width to height, known as aspect ratio, so it doesn't end up stretched or warped. If you need a specific width and height, you may need a mixture of resizing and cropping to get the desired result.


1 Answers

Set the Image.Stretch Property to Uniform

<Image Stretch="Uniform" ....etc />
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Federico Berasategui Avatar answered Oct 26 '22 04:10

Federico Berasategui