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loxodrome or rhumb line / tying a point to 3D surface (by cmpxchg)
Currently lines and arcs in solvespace result in intuitive 3D objects and 3D surfaces.

However, it is not possible to tie a point to a 3D surface, only 2D surfaces. I was wondering of ways to accomplish this anyway...

'A loxodrome is an arc crossing all meridians of longitude at the same angle, that is, a path with constant bearing as measured relative to true north. '
https://en.wikipedia.org/wiki/Rhumb_line

Now an earth is more an ellipsoid, and there is no good way to make an ellipsoid in solvespace (perhaps scaling a sphere in non-uniform xyz ratio might be a way, if such scaling was supported...).

If one could tie a point to such loxodrome, a more intuitive way of working with non-planar surfaces could be created...
How do other 3D modelling programs do this, and how could this be implemented in solvespace ?
Thu Jun 9 2022, 13:16:36
(no subject) (by Paul)
You can approximate half an elipse with one or more splines and use Lathe to sweep a 3d one.
Thu Jun 9 2022, 15:15:57
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