On 02/04/13 11:19, Steve Kinney wrote:
> On 02/04/2013 03:46 AM, Elmer Wix wrote:
>> Øyvind Kolås <pip...@gimp.org> wrote:
> [...]
>>> The perspective tool has an inverse mode, if you align the grid lines
>>> from the wireframe preview with the lines desired to become
>>> horizontal/vertical and then do the transform you should end up with a
>>> rectified version of the quadliteral.
>> Thanks!  That worked.  The size and aspect ratio of the rectified
>> quadrilateral isn't always close to what I want it to be, though.  Is
>> there a way to specify this before I do the perspective transform, or
>> do I just need to do it in 2 steps (correct perspective, and then
>> re-size)?
> I has a "well DUH!" moment over this because I never noticed the
> function, so I started tinkering around with it.  If there is a
> rectangular selection on the canvas, the area selected by the
> perspective tool conforms to the selection when resampled.  The tool
> options dialog dock for Rectangular Select has settings for
> adjusting the size and position of the selection in pixels.
> I can't believe the amount of time I have wasted squaring up
> photographed or scanned rectangular objects "by hand."  But I love
> it when posters like Øyvind point out things that should have been
> obvious to me - better to learn late than never!

Thank you!  I've been wondering how to do that for a *long* time.
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