Hi Geoffrey and all, Including cells if just a piece of them is inside the region does not really change the computation time. It's just a matter of adding or subtracting dx/2 when considering a given cell. The difference between the two options is mostly academic, I think. I would say it's more important to stick to a consistent definition for all data containers. How are spheres and disks treated? Is it only cell centers there? If so, let's stick with that. Britton On Fri, Feb 3, 2012 at 4:20 PM, Geoffrey So <gsiisg@gmail.com> wrote:
Center would be better I agree, checking if all edges is just multiplying the same calculation by 8.
From G.S.
On Fri, Feb 3, 2012 at 1:01 PM, Stephen Skory <s@skory.us> wrote:
So a better question, I suppose, is why do we have an *un*strict region? Should we be doing unstrict for all of our data objects? i.e., if a sphere intersects a cell but doesn't hit the corner, do we select that cell?
I would say that if the center of the cell is inside the sphere, include it. I think anything more complicated won't be any better, but more difficult.
-- Stephen Skory s@skory.us http://stephenskory.com/ 510.621.3687 (google voice) _______________________________________________ yt-dev mailing list yt-dev@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org
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