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> Cropping And Dimension Ratio
Guest_Photog_*
post Jun 21 2005, 02:15 PM
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I do a fair amount of cropping. I want top be able to crop to a defined print size, so 4 inches by 5 inches, 5x7, 8x10, 8x12, and so on.

Currently when I display the "Selection Info" it gives the the corners x/y for the selection, the selection width/height plus the percentage of the whole image, but it not does not show the ratio between the width/height.

It would be really helpfull to have that shown.
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Peter
post Jun 22 2005, 09:31 AM
Post #2


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The percentage does actually indicate the ratio, but obviously not in the unit you would like to see it.

angle = atan(1/aspect_ratio) where aspect_ratio=x/y

or the other way:

apect_ratio = 1/tan(angle)

For instance, the angle of your 8x10 is atan(10/8) = 51.34 degrees

I will consider adding display of the aspect ratio in a future version!

BTW, the aspect ratio of 8x10 is 4:5. The aspect ratio of 8x12 is 2:3. This is what PMView would display. It would never display 8:12 because that's not a normal form.


--------------------
Peter Nielsen (peter@pmview.com) "If you can dream it, you can do it" JFK.
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Posts in this topic
- Photog   Cropping And Dimension Ratio   Jun 21 2005, 02:15 PM
- - Peter   The percentage does actually indicate the ratio, b...   Jun 22 2005, 09:31 AM
|- - psmedley   QUOTE (Peter @ Jun 22 2005, 10:31 AM)I will c...   Dec 27 2005, 05:59 AM
|- - Guest_Hermann_*   QUOTE (psmedley @ Dec 27 2005, 06:59 AM)I...   Dec 27 2005, 02:39 PM
- - skiwi   bump   May 6 2010, 05:10 AM


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