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2 monitors --> 1 bitmap

Old 07-25-04, 08:37 PM
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2 monitors --> 1 bitmap

After having dual monitors for about 9 months, I finally figured out how to stretch one bitmap image across 2 monitors.

However, suppose I have a very high resolution image (ones found at nasa.gov are well over 3000x2000 I believe) and I want to stretch that image across the two monitors -- what resolution do I resize the image to? My monitors are set to 1024x768.

Also, what's a good site for wider bitmaps?

kthxbye
Old 07-25-04, 09:17 PM
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2048 x 768 might be a good place to start.
Old 07-25-04, 10:02 PM
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Originally posted by BigPete
2048 x 768 might be a good place to start.
Ya think?

ChiTownAbs: Heh... hopefully you were asking something other than the obvious. Just one piece of advice: You'd be better off splitting it into left and right images, and setting each of those to the background of one of the monitors. I think Windows would handle it inefficiently otherwise.

- David Stein
Old 07-25-04, 10:05 PM
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ChiTownAbs, Inc.

Is this like one of those "I have so much $$$ my wallet won't close" or "my supermodel girlfriend keeps stretching out her shirts with her ginormous breasts" kinds of questions?

Old 07-25-04, 11:44 PM
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Well, then I think I'm using some crappy piece of software to resize it because when I type in 2048, the other size does not go to 768.

Hmmm... I might have to play around with it.
Old 07-26-04, 12:15 AM
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Thats because you will need to crop it after you resize it, unless you want it to be all distorted.
Old 07-26-04, 11:21 PM
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Originally posted by ChiTownAbs, Inc.
Well, then I think I'm using some crappy piece of software to resize it because when I type in 2048, the other size does not go to 768.
That's normal.

Look, you're taking a 1024x768 image, and you're doubling the horizontal size to 2048 pixels. Now, most paint programs will do one of two things - neither of which you want: they'll stretch the image to twice its width (everything will be twice as wide - hint: that looks horrible), or they'll keep the original image but make half of the image blank (solid white, black, gray, etc.)

What you really need is to find a very wide image that can be scaled to 2048x768 without too much distortion (stretching one side more than the other.)

- David Stein
Old 07-27-04, 09:32 AM
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> Well, then I think I'm using some crappy piece of software
> to resize it because when I type in 2048, the other size
> does not go to 768.

That could be the software, or the settings/options you're using in the software. For example, when I resize something in Paintshop I can change the height or width and have it automatically set the other dimension, keeping the same proportions as the original, or I can set both the height and width myself, possibly distorting the image. So I could take a 3000x2000 image and change the width to 2048 and Paintshop would automatically set the height to approximately 1365, keeping the image shape the same, or I could manually set it to 2048x768, severely distorting the image.

The answer is not simple. It depends on a lot of factors. How much do you want to use that image? Does it matter if it's distorted? Can you just copy out part of the image that's closer to the necessary proportions? And so on. In the past I've done things like resize, crop and combine several images to create an image with the right dimensions.

James
Old 07-29-04, 10:16 AM
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Re: 2 monitors --> 1 bitmap

Originally posted by ChiTownAbs, Inc.
ones found at nasa.gov are well over 3000x2000 I believe)
Where abouts do you find them at that size?

Thanks
Chris
Old 07-29-04, 08:37 PM
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http://marsrovers.jpl.nasa.gov/galle...oramas/spirit/
Old 07-30-04, 11:11 AM
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Cheers for that!
Old 07-30-04, 11:40 AM
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Also, use Google image search. I've had decent luck with [cityname] panoramic, do advanced search and choose large images only.

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