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Javert

Max Zoom issues

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Hello, I use Paint.NET 3.5.8 on Windows 7 Pro x64, with everything fully updated. After installing AutoCAD 2012 Electrical (Student), there were several glitches that cropped up in Paint.NET most notably that I could no longer zoom fully into an image and edit or even see the entire thing. For example I was trying to edit an image that is 1400*750. When I used [CRTL]+Scroll to zoom in as far as I could, it let me zoom in to 3200%. However it defaulted to an area that was at the edge of a 1024*550 rectangle set in the upper left corner of the image. I tired several times to scroll further down the image in full zoom, but Paint.NET refused to let me (it would however let me scroll further over using the scroll bars, but not edit anything outside of the above mentioned area). I have removed all plugins, uninstalled AutoCAD, reinstalled Paint.NET (both versions 3.5.7 and 3.5.8) and nothing has fixed this issue. To show what I am talking about I have uploaded the following files:

Zoomerror-800.jpg

(318k)

Zoomedout-800.jpg

(273k)

The first is the error when zoomed in all the way, the second shows where I am in the image when zoomed out.

As I noted above (in the topic description) Paint.NET will not even let me select 2400% as a zoom, and the scroll-to-zoom skips

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I'm not sure how it let you zoom into 3200% in a 1400x750 image. There is currently a limitation in Paint.NET by which it cannot expand the "virtual" canvas size beyond 32,767 x 32,767 pixels. This explain why it won't let you go past certain zoom levels depending on the image size. (In fact, try creating a 64,000 x 2px image. You won't even be able to set zoom to 100%!)

So, 1400 x 3200%, or 1400 x 32 = 44,800, which shouldn't have been permitted.

This is a limitation I'm planning on fixing in v4.0.

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I'm not sure how it let you zoom into 3200% in a 1400x750 image. There is currently a limitation in Paint.NET by which it cannot expand the "virtual" canvas size beyond 32,767 x 32,767 pixels. This explain why it won't let you go past certain zoom levels depending on the image size. (In fact, try creating a 64,000 x 2px image. You won't even be able to set zoom to 100%!)

So, 1400 x 3200%, or 1400 x 32 = 44,800, which shouldn't have been permitted.

This is a limitation I'm planning on fixing in v4.0.

Is there anything I can send you to help you figure out what went wrong so it won't go wrong for others? I can live with the errors at this point, but I'd like to see it get fixed in the next version.

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With an image that size my Paint.NET allows a zoom of 2340%.

Try that limit, and see if it is otherwise error-free.

Yeah it is, and was error free at anything but full zoom.

Edit: It seems that it's mostly that image (I just loaded a 2000*10000 image and it did what it was supposed to by not letting me zoom in more than 328%), which makes me feel rather silly for posting this. Sorry Rick, obviously feel free to lock.

Edited by Javert

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