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From: Radek <tru...@o2...> - 2008-07-23 00:03:41
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Hello, I have some questions regarding the possibility of having subpixel accuracy in drawing apps (like GIMP or so). I'll try to describe the problem the best I can: Lets say I run GIMP with an image viewed at 25% zoom, that is, one pixel on display correnponds to 4x4 square on the image. Using the tablet I draw a curve with a pencil tool (1x1 square brush without antialiasing). I zoom image to 100% and see that the curve is not smooth, but consists of short, straight sections either vertical, horizontal or diagonal, like if it was snapped to 4x4 pixel grid. I know that this is because GIMP gets the stylus coordinates with accuracy limited to the resolution of my display. If there was a way to make it receive (and properly interpret) stylus coordinates with an increased precision (so that it would be limited by tablet's resolution rather than display's), it would work as it should. I've been googling to find a solution for this, but I've only found out that it's a Xorg limitation and nothing can be done unless Xorg supports it. Despite that, I think that there can be some workarounds. One that came to my mind is to create some kind of virtual display with a size in pixels close to the working area of tablet (so that the drawing window of GIMP could be sent there), and put it on the screen zoomed out. What do you think about it? Is it even possible? I want to say here I'm not a linux guru nor a pro coder, so probably I coudn't fix it myself. But this issue is rather important for me, because it feels a little pointless of having a tablet of a high resolution while not being able to take any advantage of it. Or maybe I'm just missing something? Best regards, Radek |