[yt-dev] Make DomainSubsets a subclass of YTSelectionContainer?

[Matthew Turk]

Hi all,

Today in IRC, Chris and I went back and forth on the particle
deposition stuff in advance of the meeting next week.  My task right
now is to come up with spatial field chunking for Octs in a consistent
way; of course I'll write this up into the extant YTEP, which will
allow for feedback particularly from ARTIO, ART and RAMSES folks, but
as a quick first pass I was wondering what everyone thought of:

1) Unifying DomainSubsets into a single object with subclasses
2) Making that new base class a subclass, itself, of YTSelectionContainer

This would mean that this new base class would be very similar to the
GridPatch object -- which it already is -- and would implement, most
crucially, the __getitem__ accessor pattern.  This would return a
2x2x2xNoct field.

[+-][01]?  Specifically, Doug, Chris, and SamL?

Sidenote: I discovered that we will not have to rewrite spatial fields
that currently work for grids; my understanding of the numpy
broadcasting system was not complete, and I didn't realize that this
script does *exactly what I want it to.

http://paste.yt-project.org/show/3391/

This means that our Oct spatial fields will be (2+NGZ*2, 2+NGZ*2,
2+NGZ*2, NOCT) shaped.