Images rotated on Hugin Control Points tab

[John Eklund]

Hugin apparently has a "feature" that visually rotates input images on the Control Points tab if they have a Roll value 45 degrees or greater. It seems this behavior can't be turned off?! Although it might be helpful in some situations, there are many situations where it makes editing control points virtually impossible. Here's what I got after a few optimizations matching an old and new map. Luckily, I had already created all control points manually before optimizing - otherwise I would have had to temporarily reset the Roll value to be able to place further control points without going mad. Please add a way to disable this feature!

(The reason for this Roll value increase is irrelevant but I'll mention it anyway: Since the old map was created in an ancient projection, I had a challenge matching it with the new map. By optimizing g & t (shearing) and other stuff I got a closer match but this caused Roll (which was almost zero) to increase to 55 (and View went from 73 to 105) since simultaneous horizontal and vertical shearing resembles a rotation. This is fine - the panorama is finished. The control point editor just makes further editing impossible).

[bugbear]

John Eklund wrote:
> Hugin apparently has a "feature" that visually rotates input images on the Control Points tab if they have a Roll value 45 degrees or greater. It seems this behavior can't be turned off?! Although it might be helpful in some situations, there are many situations where it makes editing control points virtually impossible.

One of my common uses for Hugin is stitching together a cylindrical panorama (what used to be called a "panoramic photograph" :-) ).

To maximise resolution, I set the camera to portrait mode, and rotate it on a vertical axis; you don't even need a pano
head to do this, a normal tripod head is fine.

The feature you dislike so much is of great value when working with such a photograph.

BugBear

[Luís Henrique Camargo Quiroz]

  May I add an intermediate case?
 

  Some times, trying to add (manually) control points in branches of trees in photos taken near and/or at the vertical, with different yaw each photo, it is harder to see matching features because of the orientation of the photos -- or tree branches -- not the same, say, the first (left) image as base and the right one turned laef or right or even upside down... Sure it is a great exercise (or pain) for my neck!

  In those cases it would be extremelly useful if I had a control to just turn one or even both of the images a specified amount of rotation, just for the display, not for the physical orientation of the picture. This feature would be turned on when desired -- not default, nor simple mode interface --, and increments by 1 or by 5 degrees should suffice.

 Luís Henrique

 

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Luis Henrique Camargo Quiroz
http://luishcq.br.tripod.com - http://www.christusrex.org/www2/cantgreg
http://panoramaslh.net/

[John Eklund]

Luis's suggestion would be awesome, but a bit overkill for me. I'm only asking for a little button to turn this auto-rotate function off.

Bugbear - I have been shooting spherical panoramas since 2007 and am very comfortable working with Hugin since a decade. That doesn't mean that this feature is not sometimes in the way. :)

Here is some of my work:
http://www.elmuseum.se/panorama/
http://www.angkraftverket.se/panorama/