NWE Help: Graphics: XV: Crop

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Once you have a selection rectangle that you can live with, you can proceed with the actual cropping operation. Click the Crop button in the XV controls window, or press the c key in any open XV window. The image window will shrink to show only portions of the image that were inside the cropping rectangle.

You can return to the original, uncropped image by using the UnCrop command. Simply click the UnCrop button or press the u key in any open XV window. Note that using the UnCrop command will turn off image smoothing (the Smooth command), due to the potentially long time it can take to generate a large, smoothed image.

Note that if you try to make the selection rectangle too small in either width or height (under 5 screen pixels), it'll just turn itself off. If you want to crop a very small portion of an image, you'll probably have to do it in two passes. First, crop to a smallish rectangle, expand that image, then crop again.

You can also fine-crop the image by pressing the <Ctrl> key and one of the arrow keys. This will crop off one pixel from the edge of the image, based on the arrow key pressed. The Up key moves the bottom edge up one pixel, the Down key moves the top edge down one pixel, and so on.