Hi Matt,

Which direction is the offset?  This could be something I screwed up when porting the vorticity fields to yt-3.0.


On Tue, Apr 15, 2014 at 12:37 PM, Matthew Turk <matthewturk@gmail.com> wrote:
Hi all,

I have been working with Jia-Hung on looking at vorticity in his GAMER
simulations.  He has supplied me with a dataset where the minimum
vorticity (by prescription) should be at the center.

After a lot of back and forth with him and with Jeff Oishi, I
determined that what looks to be happening is that unless I set the
number of ghost zones to 2 (instead of 1) there is a systematic

Can anybody think why this might be?

I'm working on making this into a unit test to check its behavior in 3.0.

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