Mailman 3 May 2015 - yt-dev

Issue #1022: FLASH Particles do not load properly (yt_analysis/yt)
by Anonymous 11 May '15

11 May '15

New issue 1022: FLASH Particles do not load properly https://bitbucket.org/yt_analysis/yt/issue/1022/flash-particles-do-not-load… Anonymous: yt version: 3.2-dev, changeset 5f93d2bb2aee For massive particles generated by FLASH, I get a 'zero-length selection' exception whenever I try to access 'deposit', 'io', or 'all' particle fields: ``` #!python ds = yt.load(plotFname, particle_filename=partFname) ad = ds.all_data() print ad['gas', 'density'] # This works print ad['io', 'particle_position_x'] # This gives a 'zero-length selection' exception print ad['all', 'particle_position_x'] # This gives a 'zero-length selection' exception print ad['deposit', 'io_mass'] # This gives a 'zero-length selection' exception ``` In case this is related: I can plot particle positions on top of a gas density projection when the plot is square. If the projection is rectangular, annotate_particles() fails silently. _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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Issue #1021: Set buff size based on aspect ratio, dpi, and window size (yt_analysis/yt)
by Matthew Turk 11 May '15

11 May '15

New issue 1021: Set buff size based on aspect ratio, dpi, and window size https://bitbucket.org/yt_analysis/yt/issue/1021/set-buff-size-based-on-aspe… Matthew Turk: Right now, it seems like our `buff_size` is always set identically to `(800,800)` in `SlicePlot` and the like. This can be overcome by doing a `set_buff_size` call, but this call is also somewhat counterintuitive, as it is in reverse order (height, width). I think, but am not certain, that we can get desired behavior by setting `buff_size` to `None` in the constructor, and then inside `_setup_plots` (where we'll have the aspect ratio info as well as the figure size, although we should probably assume 100 or 300 DPI) we can guess the buffer size. (Thanks to @maxhutch for the pointer on this.) Responsible: MatthewTurk _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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Issue #1020: There should be a way to easily create gradient fields (yt_analysis/yt)
by John ZuHone 11 May '15

11 May '15

New issue 1020: There should be a way to easily create gradient fields https://bitbucket.org/yt_analysis/yt/issue/1020/there-should-be-a-way-to-ea… John ZuHone: We have `setup_gradient_fields`, but this is an internal method, and we need something along the lines of `add_field` that the user can call easily. Responsible: jzuhone _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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Issue #1019: Typo in documentation of (‘gas’, ‘density_gradient_y’) (yt_analysis/yt)
by Philipp Grete 11 May '15

11 May '15

New issue 1019: Typo in documentation of (‘gas’, ‘density_gradient_y’) https://bitbucket.org/yt_analysis/yt/issue/1019/typo-in-documentation-of-gas Philipp Grete: yt-project.org/doc/reference/field_list.html#gas-density-gradient-y the index should read dy instead of dx - same for gradient_z _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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advice on implementing halo member particle loading
by Britton Smith 08 May '15

08 May '15

Hi everyone, Myself and one other who should be joining this list soon are interested in implementing some new functionality and I would like to solicit some advice. What we have are halo catalog datasets that, for the most part, are already loadable in yt. They are loadable in that each individual halo is a particle such that querying the mass field returns the mass of each halo. However, these datasets also store the particles from the simulation snapshot that are the members of each halo. We currently do not have the machinery to query them and this is what we would like to add. It seems the most sensible idea is to create a halo data container such that something like the following returns the mass of all the particles in a halo: my_halo = ds.halo(some_id) my_halo["particle_mass"] This is somewhat different from the existing data containers as it is not geometric. The member particles are explicitly known. I don't have much experience with making data containers so I can't tell if this makes things easier or harder. Anyway, this is the plan. If anyone has reasons this may be too difficult or simply not work, I would appreciate hearing them. Any general advice or other ideas for making this functionality work would also be welcome. Thanks! Britton _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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Bitbucket SSL certificate changing
by Nathan Goldbaum 07 May '15

07 May '15

Hi all, Just a head's up: http://blog.bitbucket.org/2015/05/06/bitbuckets-ssl-certificate-is-changing… This is only important if you communicate with bitbucket over htttps, since you might begin seeing the following error whenever you push or pull: abort: certificate for bitbucket.org has unexpected fingerprint 46:de:34:e7:9b:18:cd:7f:ae:fd:8b:e3:bc:f4:1a:5e:38:d7:ac:24 (check hostfingerprint configuration) If that happens, add the following option to your .hgrc file: [hostfingerprints] bitbucket.org = 46:de:34:e7:9b:18:cd:7f:ae:fd:8b:e3:bc:f4:1a:5e:38:d7:ac:24 Hope that's useful! -Nathan _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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Mailing list archives
by Matthew Turk 07 May '15

07 May '15

I've submitted, for the sixth time, a ticket to dreamhost asking why our mailing list archives are still unavailable. I have said that at the very least, I would like access to the archives in either mbox or internal mailman format; if they cannot give me an ETA on when the mailing list archives will be available, I'm going to plan a migration somewhere else. This email took ten minutes to write, since I've been unable in all that time to identify the correct emoji to communicate the particular mixture of frustration, annoyance and powerlessness I feel about this particular topic. _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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Issue #1018: Document how _is_valid works (yt_analysis/yt)
by Nathan Goldbaum 04 May '15

04 May '15

New issue 1018: Document how _is_valid works https://bitbucket.org/yt_analysis/yt/issue/1018/document-how-_is_valid-works Nathan Goldbaum: Right now we only mention _is_valid one on this page: http://yt-project.org/docs/dev/developing/creating_frontend.html It would be nice if we could expand that description, since people who write new frontends often ask about it. We should incorporate the new semantics added in PR 1417 _______________________________________________ yt-dev mailing list yt-dev(a)lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org

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