Points inside the sphere

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How to find if the points are inside or on the edge of the ellipsoid with the center at X Y Z and radiuses a b c?

Accepted Answer

James Tursa
James Tursa on 1 Nov 2022
Edited: James Tursa on 1 Nov 2022
Just plug your points into the ellipsoid equation and see if they work. E.g.,
((x - X)/a).^2 + ((y - Y)/b).^2 + ((z - Z)/c).^2 <= 1
Where x, y, z are the coordinates of your points.

More Answers (1)

Torsten on 1 Nov 2022
Use the function
fun = @(x,y,z) ((x-X)/a).^2 + ((y-Y)/b).^2 + ((z-Z)/c).^2 - 1.0;

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