Re: [Gimp-user] gimp-user-list Digest, Vol 88, Issue 9

[Richard <strata_ranger hotmail com>]

Hmm ... I don't even see any problems?  The end result (desktop2.png) looks perfectly fine to me.

Keep in mind, when you use *any* transform tool, the on-canvas preview is just a rough calculation executed 
as quickly as possible (for performance reasons).  The final transform, on the other hand, is calculated as 
accurately/precisely as possible (and takes considerably longer).  This is why there is an apparent quality 
difference between the two screenshots, but the difference is only in the rendering, and desktop2.png IS the 
correct result.

...Or do you also have a screenshot of the image before applying the Scale tool at all?  It's harder to 
evaluate if the transform is correct without a proper 'before' version to compare with.


-- Stratadrake
strata_ranger hotmail com
--------------------
Numbers may not lie, but neither do they tell the whole truth.
________________________________
From: Ben Thurston <benpaulthurston gmail com>
Sent: Monday, January 21, 2019 8:46 PM
To: gimp-user-list gnome org; strata_ranger hotmail com
Subject: Re: gimp-user-list Digest, Vol 88, Issue 9

Sorry If I'm not replying to this correctly but here are two screenshots. I hadn't done anything with the 
layers, this is just pasting some text in from the clipboard and scaling it, it looks great in the preview 
(desktop1.png) but then when I click the scale button it becomes as in (desktop2.png),

On Mon, Jan 21, 2019 at 7:00 AM <gimp-user-list-request gnome org<mailto:gimp-user-list-request gnome org>> 
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Today's Topics:

   1. Re:  IImprovements to unified transform (Richard)
   2. Re:  scaling tool problems (Richard)


----------------------------------------------------------------------

Message: 1
Date: Sun, 20 Jan 2019 17:54:05 +0000
From: Richard <strata_ranger hotmail com<mailto:strata_ranger hotmail com>>
To: BWK <forums gimpusers com<mailto:forums gimpusers com>>, "gimp-user-list gnome org<mailto:gimp-user-list 
gnome org>"
        <gimp-user-list gnome org<mailto:gimp-user-list gnome org>>
Cc: "notifications gimpusers com<mailto:notifications gimpusers com>" <notifications gimpusers 
com<mailto:notifications gimpusers com>>
Subject: Re: [Gimp-user] IImprovements to unified transform
Message-ID:
        <MWHPR22MB05281E780CB5D33E80C492D99C9E0 MWHPR22MB0528 namprd22 prod outlook 
com<mailto:MWHPR22MB05281E780CB5D33E80C492D99C9E0 MWHPR22MB0528 namprd22 prod outlook com>>

Content-Type: text/plain; charset="us-ascii"

I've faced the same issue when assembling scanned images from a standard (A4) scanner -- i.e. my source is, 
say, 11x14 so I scan it in multiple sections.  I actually find it easier not using GIMP at all here and using 
a vector program instead (e.g. Inkscape).  Move the images roughly together, zoom in and align one feature 
between two images, then set it as the center of rotation, move to a second (quite distant) feature and align 
that.  (I'm omitting a few steps regarding alpha blending but you get the general idea.)

-- Stratadrake
strata_ranger hotmail com<mailto:strata_ranger hotmail com>
--------------------
Numbers may not lie, but neither do they tell the whole truth.
________________________________
From: gimp-user-list <gimp-user-list-bounces gnome org<mailto:gimp-user-list-bounces gnome org>> on behalf of 
BWK <forums gimpusers com<mailto:forums gimpusers com>>
Sent: Friday, January 4, 2019 1:50 PM
To: gimp-user-list gnome org<mailto:gimp-user-list gnome org>
Cc: notifications gimpusers com<mailto:notifications gimpusers com>
Subject: [Gimp-user] IImprovements to unified transform

> I guess likewise also need a way of rotating without having to drag
> outside the edge. That would need a rotator modifier key or tool.

The crtitical issue is, when overlaying one aerial photo over another, you
aren't necessarily aligning the edges. Having sizing/skewing handles on the
edges or corners works fine if the edges or corners is what you want to align.
but in this instance, what you are looking to align is features that can be
anywhere within the image (aligning what is in the top layer with what is in the
layer underneath).

--
BWK (via www.gimpusers.com/forums<http://www.gimpusers.com/forums><http://www.gimpusers.com/forums>)
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------------------------------

Message: 2
Date: Sun, 20 Jan 2019 17:59:56 +0000
From: Richard <strata_ranger hotmail com<mailto:strata_ranger hotmail com>>
To: "gimp-user-list gnome org<mailto:gimp-user-list gnome org>" <gimp-user-list gnome 
org<mailto:gimp-user-list gnome org>>, Ben
        Thurston        <benpaulthurston gmail com<mailto:benpaulthurston gmail com>>
Subject: Re: [Gimp-user] scaling tool problems
Message-ID:
        <MWHPR22MB052849EC88B8F52DEBCBAD039C9E0 MWHPR22MB0528 namprd22 prod outlook 
com<mailto:MWHPR22MB052849EC88B8F52DEBCBAD039C9E0 MWHPR22MB0528 namprd22 prod outlook com>>

Content-Type: text/plain; charset="Windows-1252"

What exactly do you mean by "faint" and "washed out" -- can you post some screenshots?

The first thing that comes to mind is check if the layer being rotated has a specific opacity (<100%) or 
blending mode (other than "Normal") that's causing the issue, as the previews you see when using the tool 
don't take these into account.

-- Stratadrake
strata_ranger hotmail com<mailto:strata_ranger hotmail com>
--------------------
Numbers may not lie, but neither do they tell the whole truth.
________________________________
From: gimp-user-list <gimp-user-list-bounces gnome org<mailto:gimp-user-list-bounces gnome org>> on behalf of 
Ben Thurston via gimp-user-list <gimp-user-list gnome org<mailto:gimp-user-list gnome org>>
Sent: Wednesday, January 16, 2019 11:43 PM
To: gimp-user-list gnome org<mailto:gimp-user-list gnome org>
Subject: [Gimp-user] scaling tool problems

I recently switched to the new version on Windows 10, and when I want to
scale a selection, as I resize it, it looks good but when I confirm with
the scale button, it changes from the way it looked in the preview to being
really faint and washed out. I?m just doing it the way I always did in the
previous version. No matter what I google I can?t find any posts from
people having the same problem so I thought I?d ask here thanks!
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End of gimp-user-list Digest, Vol 88, Issue 9
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