Trimming and projecting point clouds in CATIA

[SurfaceWork]

Hi,

I'm trying to figure out how to make a set of evenly distributed points on a curved surface.
To simplify, imagine a torus/donut as my surface. The points don't have to be perfectly distributed/evenly spaced.

How do I do this?

I have approached it in three steps:
1) Generate an even cloud of points around the torus. Basically rectangular pattern in 3 dimensions. Let's say they are 10 mm apart.
2) Filter the points closest to the surface of the torus, keeping only points less than 5 mm inside or 5 mm outside of the torus.
3) Project the remaining points on the surface of the torus.

It is at stage three that I get stuck. When I try to project the points they are projected at least twice: Once on the closest point of the toroid and once on the opposite side.

Any ideas for how to move forward, or other methods that will give me the even point cloud?

 

[itsmyjob]

can you mesh your surface and export the mesh?
can you save your file as STL?

Eric N.
indocti discant et ament meminisse periti ​

 

[SurfaceWork]

It is probably faster to just make a circle and revolve it around an axis outside it.
For my trials I've made a 100 mm circle and revolved it around an axis 150 mm from its centre, but you might as well try on a sphere.