New issue 958: Document detailed cuts on particle chunks https://bitbucket.org/yt_analysis/yt/issue/958/document-detailed-cuts-on-par...
Cameron Hummels:
This is a followup on a conversation from the yt-users email list:
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*Hi, Everybody-*
*I have some old code in which I pulled particle ids from grid objects, and I'm porting it to yt3.0.*
*My old code used a "cut mask" defined like the following:*
``` #!python
for grid in data._grids: cut_mask= data._get_cut_mask(grid)
```
*I see that grids is now handled through chunks, is there a modern equivalent of the cut_mask? Or, is there a new-and-improved method to get particle ids from complex objects?*
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*The yt-3.0 equivalent using the chunking system looks like this:*
http://nbviewer.ipython.org/gist/ngoldbaum/700d2235d24a5faf9d58
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Perhaps a note about this functionality should go in the "Particle Filters" section of the docs? http://yt-project.org/docs/dev/analyzing/filtering.html#filtering-particle-f...
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Cameron Hummels