I'd like to create a rectangular mesh of a sphere, and a tetrahedral mesh sphere. how to do it? 

I will use it for presentation. 

Additional info: 3D regular mesh is used for Finite difference time domain computation, tetrahedra mesh is used for finite element method.

Thanks.

Golam Kibria Chowdhury wrote:
> I'd like to create a rectangular mesh of a sphere, and a tetrahedral 
> mesh sphere. how to do it?

The only way to fit a rectangular mesh to a sphere would be to use 
infinitely small rectangles -- unless, that is, you are willing to 
specify a tolerance of uncovered area and indicate whether that is a 
_total_ area uncovered or the acceptable uncovered gap at any one location.

"Golam Kibria Chowdhury" <kibria100@yahoo.com> wrote in message <huue2e$ro2$1@fred.mathworks.com>...
> I'd like to create a rectangular mesh of a sphere, and a tetrahedral mesh sphere. how to do it? 
> 
> I will use it for presentation. 
> 
> Additional info: 3D regular mesh is used for Finite difference time domain computation, tetrahedra mesh is used for finite element method.

quadrilateral mesh

http://www.mathworks.com/matlabcentral/fileexchange/25027-cubed-sphere
http://www.mathworks.com/matlabcentral/fileexchange/25048-plot-earth

Bruno