A structured grid that "wraps"

Bryan VanDeVen bryanv at arlut.utexas.edu
Mon Aug 2 17:56:13 EDT 1999

Joey Mukherjee wrote:
> Hello!
> I have a structured grid which I want to "wrap" around.  In other words, the
> i(n) element's neighbor is also i(1).  Does this make sense?  If so, is it
> possible?
> The reason I ask is I am constructing surfaces which create spheres.  The sphere
> always has a notch cut out of it where (I am assuming) the grid starts and ends.
> Thanks for any input!

I had a similar problem collecting radial data into cylinders.  I never
really got a good answer. In end I just ended up duplicating the first
plane in the grid and making it an "n+1" grid, coincident with the
first, so that it started and ended at the same geometric coordinates. 
This won't make the points topologically connected, but it will get rid
of the notch.

Bryan Van de Ven
Applied Research Labs
University of Texas, Austin

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