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[Bug 679878] Re: stitcher tab FoV/Size relation

To: hugin-devs@xxxxxxxxxxxxxxxxxxx
From: Yuv <679878@xxxxxxxxxxxxxxxxxx>
Date: Tue, 30 Nov 2010 14:04:24 -0000
Reply-to: Bug 679878 <679878@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: hugin
   Importance: Low => Wishlist

-- 
stitcher tab FoV/Size relation
https://bugs.launchpad.net/bugs/679878
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Status in Hugin - Panorama Tools GUI: Confirmed

Bug description:
HFOV, VFOV, width and height are related.

currently (SVN 2841):
- when I change VFOV, height changes
- when I change HFOV, height changes
- when I change width, the Crop changes
- when I change height, VFOV changes

I find this confusing.

I would like clearer, advanced notice over how these parameters interact. I am not sure I have thought everything through, but it seems to me that there are at least three potential scenarios:

[ -> = changes ]

* keep aspect ratio constant
-- VFOV <-> HFOV.
-- width <-> height.

* keep view constant (=> change resolution)
-- VFOV -> height.
-- HFOV -> width.
-- height <-> width.

* keep resolution constant (=> change view)
-- height -> VFOV
-- width -> HFOV
-- VFOV <-> HFOV

I am not sure if there are other scenarios. predictability is the key. sure, I could play around for half hour and learn the tricks, but it is more important imo for the interface to be intuitive right away.