Hi Stephen, On Tue, Nov 27, 2012 at 10:37 AM, Stephen Skory <s@skory.us> wrote:

Hi Matt,

in the text, you stress that "Additionally, any code that relies on access of the _grids attribute on data objects will be broken." Just to be clear, this is only for data objects - the grids will still hang off the hierarchy?

Yes, although I have been thinking about rewriting them to be in Cython, building on the code John ZuHone recently wrote. This would mean the grids would be faster, and with pure-C attributes for things like left/right edges, we could do point location and geometry selection much faster. As it is, the selection still does everything the dumb way: iterating over every left/right edge and looking for collisions. Anything like that would be a YTEP of its own, and would also minimize or avoid completely backwards incompatible changes. -Matt

-- 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