Ellipse through five picked points
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 From:  bemfarmer
9971.3 In reply to 9971.2 
After using the script in a 3D situation, and having trouble establishing a z_plane view of the desired location for the ellipse,
a slight modification was made to the script. Did a rotation to the stl model to get a z_plane view, cPlane did not do the job.
In alpha version 02, the zPt1 coordinate of the first point picked, was used for the z value of the center point and major and minor axes points.
The z values of the other picked points should be the same, but are still ignored by the script.

- Brian
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 From:  bemfarmer
9971.4 
Sphere through 4 points looks even easier to do.
There are some non-planar and non-colinear constraints.
May give it a try...
- B

http://paulbourke.net/geometry/circlesphere/

EDITED: 5 Oct 2020 by BEMFARMER

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 From:  bemfarmer
9971.5 In reply to 9971.4 
Got the Sphere4Pts02 alpha script to work.
- Brian
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