In Viewer center zoom at mouse cursor position

[ChrisPlak]

When I'm in viewer mode and hit Ctrl-4 to zoom in 400% the image always zooms such that the physical center of the image before the zoom remains the center of the screen after the zoom.

What I'd like is for the image to zoom with the center being the location of the mouse cursor.

Usually when I'm zooming in I want to look at some specific item in detail.  Let's say it is in the upper left corner of the image.  Currently, I zoom in 400% and the image on the screen is centered at the center of the image.  I then have to scroll up to where I had originally wanted the image to be zoomed at.


This could apply to other features that allow zooming via hotkeys

[Mario]

Why don't you just left-click the position you want to zoom to, press <Alt> and then move the mouse left and right to zoom in and out? Much easier.

[ChrisPlak]

Thanks.  That's close, but doesn't really work the way I would expect it to.  BTW, I did not know that feature existed.  (And I've read through the entire help file 2 or 3 times so far.).

It does allow for quick zooming and it sort of starts out by zooming into the area of the screen where the cursor is located, but it abandons or loses track of where the cursor was.  Pick a point near about 1/4 in from the left edge, centered top to bottom.  Now alt-left click, move left and right.  You'll notice that the point where the cursor was is not centered on the screen.  It will even move off screen.  You need to unclick, then re-left click only, drag the picture from left to right, and then continue your zooming.

BTW, While this is probably not the proper place to post this comment.  You have created one great piece of software.

[Mario]

It's described in the Viewer help (also in the Quick View Panel help) under the Mouse Zoom Commands help topic.
There are special behaviors attached to the <Alt>,<Shift> and <Ctrl> keys.

The <Alt> Zoom is explained right below this, under the headline <Alt>-Zoom.

When you click near the edge of an image and then start to zoom, it may be impossible to held the zoom center point because how the image needs to shift.

BTW, While this is probably not the proper place to post this comment.  You have created one great piece of software.

Thanks  much appreciated.
The best place to post comments like this is anywhere, especially all over the Internet where other users may looking for a powerful DAM that does not hook you into a life-long subscription or a proprietary cloud....

[ChrisPlak]

When you click near the edge of an image and then start to zoom, it may be impossible to held the zoom center point because how the image needs to shift.

I think a good example of how I'd like to see IMatch do the zooming is to use Lightroom and zoom to a point maybe 10% to 20% from the edge of the picture.  Then do the same thing in IM.  IM seems to calculate its center point inconsistently.  Whereas LR holds center point while zooming to where the cursor is located.  Yes the image may be mostly offscreen, but so be it.  I'm trying to zoom into a particular point.

[Mario]

I decided against duplicating the LR zoom modes for this fringe case. Since the introduction of the new zoom mode last year, you are the first users considering this to be a problem or worth a feature request. We'll let this sit here and see how many other users like your FR to give it some mass. Then I will consider looking into changes.

[ben]

+1