Am 15.05.2017 um 18:30 schrieb Bald Eagle:
> I have looked into doing some 4D projections into 3D space, but alas, the math
> for the moment evades me.
> 
> With regard to constant-perceived-width objects, specifically in the present
> case of planetary and satellite orbits, the projection of a torus would be a
> useful little object to be able to have on-hand.
> 
> http://mathforum.org/mathimages/index.php/Projection_of_a_Torus
> 
> I'm envisioning 3 parameters for this:  major radius, and 2 minor radii - the
> max and the min.
> 
> Thanks to anyone taking an interest!  :)

I suspect that such a torus might not have the necessary numeric
stability to form artifact-free thin lines.

Personally, I'd try a sphere sweep based approximation instead --
provided the newest experimental version turns out to work as I'm hoping.

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