PanoTools NG:
Re: Any way to specify arbitrary pole positions?
andrew.macquarrie@... 2015-May-19 00:51:38
Hi Erik,
Thanks for your reply! Sorry I've not explained myself very well, and I think I'm using some terminology incorrectly.
What I'm trying to do is project a spherical image to a different representation. Normally when you project from a sphere to equirectangular, the zenith is stretched across the top of the image and the nadir is stretched across the bottom. What I want to do is select two arbitrary points on the sphere to become stretched across the top and bottom of this new projection, and have the rest of the image distort as required. This would have the same effect as choosing arbitrary poles on a sphere and projecting to equirectangular, but you're right calling these "poles" is confusing because they're not opposite on the sphere.
I'm not sure if this clears things up - if not let me know and I can maybe sketch something to illustrate what I'm trying to say.
Thanks again,
Drew