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