Zoom in fast preview - how to do or new function?

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Oskar Sander

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Jan 2, 2010, 5:16:01 PM1/2/10
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I have a need to zoom in in the preview window, especially when using the new layout view, but also sometimes when previewing a classical panorama with many images.

Is this something already there that I have missed?

Basically the only way to zoom in that i have found, is to change the vertical and horizontal FOV with the sliders, but that obviously changes the panorama too, and ruins for example the selected crop borders.

What would be useful to do is to be able to zoom.  The preview now always shows 100% of the panorama fitted to the window.  Maybe it would be possible to allow that to be changed to another percentage, and then add vertical and horizontal scroll bars when needed.

Particularly when working with in layout mode, you need to check the connections in one part of the project at a time, especially if it is very oblong, taking a lot of space of the preview window, and thus forcing it to zoom ut making the layout thumbnails and connections very small, and sometimes even overlapping which in turn makes it impossible to view the connection lines.

Any thoughts on this?
--
/O

James Legg

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Jan 2, 2010, 6:11:47 PM1/2/10
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On Sat, 2010-01-02 at 23:16 +0100, Oskar Sander wrote:
> I have a need to zoom in in the preview window, especially when using
> the new layout view, but also sometimes when previewing a classical
> panorama with many images.
>
> Is this something already there that I have missed?

There is currently no zoom feature.


>
> Basically the only way to zoom in that i have found, is to change the
> vertical and horizontal FOV with the sliders, but that obviously
> changes the panorama too, and ruins for example the selected crop
> borders.

You could (if your window manager allows it) make the preview window
larger than your screen a drag the whole window about using a modifier
key.


>
> What would be useful to do is to be able to zoom. The preview now
> always shows 100% of the panorama fitted to the window. Maybe it
> would be possible to allow that to be changed to another percentage,
> and then add vertical and horizontal scroll bars when needed.

Agreed, though a preview window with two scroll bars, two field of view
sliders just next to them, and maybe another slider for the zoom will be
a bit of a sliding widget overload. Maybe with Thomas Modes' patch[0] we
should hide the field of view sliders unless on the projection or crop
tab?


>
> Particularly when working with in layout mode, you need to check the
> connections in one part of the project at a time, especially if it is
> very oblong, taking a lot of space of the preview window, and thus
> forcing it to zoom ut making the layout thumbnails and connections
> very small, and sometimes even overlapping which in turn makes it
> impossible to view the connection lines.
>

The size of the images in layout view is a separate issue. They could
have their own adjustable scale different to the panorama zoom.

> Any thoughts on this?

The preview is highly approximated, zooming in will make that more
obvious.

It shouldn't be too difficult to implement, however.

-James

[0]
http://sourceforge.net/tracker/?func=detail&aid=2914002&group_id=77506&atid=550443

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