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[Octave-bug-tracker] [bug #52588] Crazy Scrolling in imagesc

From: Pantxo Diribarne
Subject: [Octave-bug-tracker] [bug #52588] Crazy Scrolling in imagesc
Date: Tue, 5 Dec 2017 09:06:22 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:56.0) Gecko/20100101 Firefox/56.0

Update of bug #52588 (project octave):

                Category:                Plotting => Plotting with OpenGL   
                  Status:                    None => Confirmed              


Follow-up Comment #1:

Here is what I observe with Qt toolkit:
* *pan tool* enabled (crossing arrows button): the image is moved along the
xmin-ymin/xmax-ymax diagonal (as explained by the OP)
* *zoom-in or zoom-out* tool enabled: scrolling up is equivalent to zoom-in,
scrolling down is equivalent to zoom-out

The latter is pretty much what I would expect (and what Gnuplot does if you
add the CTRL key modifier), while the former is counter-intuitive. Maybe, in
pan mode, scrolling could move up/down without modifier key and right/left
with SHIFT modifier? That is what many drawing applications do and what
Gnuplot does also.


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