Sphere

Dear Folks,

I would like to draw a Sphere.
In the sphere I want to draw also the grid/curve/linemarker similar to the lattitude and longitude lines of the globe.

Then I want to project these grids/curves onto a plane that divides the sphere half. This plane divides the sphere or globe along its axis. The figures that would appear on the plane is like a "net".   

There is a class "TGeoSphere and SPHE" but

how to start this one? Is this possible?

What about the projection on the plane?

Thanks a lot.

-- 
Zaldy A. Nawang

Using root version: Version   4.04/02       6 June 2005
Linux with gcc version: gcc version 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)