"Dan_The_Man" <dan### [at] hotmailcom> wrote in message 
news:web.43c4245891cc8ba33a6d2d290@news.povray.org...
> I have experience writing C code but not C++.
> I am atempting to create an image from photometric lightcurve data of an
> asteroid.
> Does anybody know of code available for lightcurve inversion

I don't. Could be interesting stuff.

Is it based on rotation and time, then?

Making guesses here, but it might only cover one brightness change during a 
one-axis spin, or something like that. Basically similar to a variable star 
lightcurve, perhaps, so the shape and brightness would be seen as the same 
thing. In fact, if it were more complex data than that, you might have a lot 
of work ahead by having to figure other aspects, such as precession, if it 
is indeed only a lightcurve varying over multiple spins of the asteroid. 
Still, sounds intriguing to try and create a surface texture or shape from 
such information.

In the most simplistic way I think it should be easy to just vary color 
(brightness) across the face of a sphere. Nothing much to that. If there are 
multiple spins then a series of spheres (blob) could be textured separately 
along a spline, so that it creates both a surface and brightness as it goes 
around a central point. That would probably be what I'd try anyway. Not sure 
of meshes or other possibilities but other people could say if they see your 
message and reply. A lot depends on the actual way that data is done.

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