[Gimp-user] Binary Search Zoom?

[Smo <forums gimpusers com>]

> These old gimp forums gimptalk.com, gimpforums.com...etc dead because
> owner abandoned / not maintained / only contain spam.
>
> This is not the best forum for your question, it is linked to a
> mailing list which is unlikely to help. I can think of one actual
> gimpusers.com forum member here that might give scripting advice.
>
> There are other forums, even reddit might get you somewhere. You have
> some very definite requirements, not too sure what you mean by a
> manual binary search, presumably looking at images to determine
> matching areas.
>
> Using a tape measure to determine a scale? Depends on the images but
> you can do the same (perhaps with sufficient accuracy) with a path and
> in Gimp 2.10 using the handle transform tool. Easier scaling-down, but
> scaling-up is possible with some canvas resizing.
>
> best of luck.

Thanks - I asked in the GIMP subreddit, we'll see what happens.

What I mean by manual binary search is to zoom in/out until the image shows at
scale. Something like this (note, numbers aren't exact binary search numbers
because that would be too tedious to calculate, but you get the idea):

1) Image loads at 50% zoom.
2) Image is too big. Zoom to 33.3%.
3) Image is too small. Zoom to 44%.
4) Image is too big. Zoom to 40%.
5) Image is close but too small. Zoom to 40.5%

etc, until the image is life scale. It usually takes 10-15 steps. Not a big
deal, but entering zoom percentages manually over and over gets tedious. It
would be faster to just have "make it larger" and "make it smaller" buttons that
worked in a binary search manner.

We aren't modifying the image in any way, just changing the zoom.

-- 
Smo (via www.gimpusers.com/forums)