Create NURBS surface

How can l use OpenNURBS to create a sphere and extract spheriecal uv coordinates? I do this ouside of Rhino.

Hi @user1718,

Make a semicircle, parameterize it from -pi to pi. Make a surface of revolution and parameterize that direction from 0 to 2pi.

The uv coordinates for any point should be the spherical cords.

If I understand what you want.

– Dale