Mailman 3 February 2016 - yt-users

Porting .ply files to Blender with colors?
by Jill P. Naiman 15 Aug '22

15 Aug '22

Hi All, I was curious if anyone has had any luck porting .ply files generated with yt into Blender with colors? It seems to port in the surfaces just fine, but they are a uniform color. From what I can gather, Blender imports .ply files with face color instead of vertex so I tried the surf.export_ply routine with "face" instead of "vertex" for sample_type, but no luck ("vertex" doesn't work either). Let me know if I can provide any more useful info. Thanks for any help, -J

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Stars on volume rendering
by Elizabeth Harper-Clark 11 Dec '21

11 Dec '21

Hi all, Thanks for all your help over the last couple of days. One more question: - Can I plot particles on a volume rendered image? I have stars and I want to show where they are! Thanks, Libby -- Elizabeth Harper-Clark MA MSci PhD Candidate, Canadian Institute for Theoretical Astrophysics, UofT Sciences and Engineering Coordinator, Teaching Assistants' Training Program, UofT www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark> h-clark(a)cita.utoronto.ca Astronomy office phone: +1-416-978-5759

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Variance in phase/profiles
by david collins 11 Apr '20

11 Apr '20

Hi, Everybody! Does anyone out there have a technique for getting the variance out of a profile object? A profile object is good at getting <X> vs. B, I'd then like to get < (X - <X>)^2 > vs B. Matt and I had spittballed the possibility some time ago, but I was wondering if anyone out there had successfully done it. Thanks, d. -- Sent from my computer.

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Problem when run yt dev in parallel on Blue Waters
by Pengfei Chen 23 Aug '16

23 Aug '16

Hi all, I have trouble running yt in parallel on Blue Waters. I installed yt using miniconda, the version of yt is ~/miniconda/lib $yt version yt module located at: /u/sciteam/madcpf/miniconda/lib/python2.7/site-packages/yt-3.3.dev0-py2.7-linux-x86_64.egg The current version and changeset for the code is: --- Version = 3.3-dev Changeset = 90f900be7a36+ yt Then with miniconda/bin in PATH I installed mpi4py-2.0.0. But when I tried to make the following simple output in parallel, I get: import yt yt.enable_parallelism() from yt.utilities.parallel_tools.parallel_analysis_interface import\ parallel_objects, communication_system comm = communication_system.communicators[-1] print comm.rank, comm.size 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 ... When I run a similar code but with yt-2.x also on Blue Waters, I get what I expect: 7 16 15 16 6 16 9 16 11 16 8 16 0 16 4 16 ... I'm confused about it. Could anyone give me some suggestions please? Thanks, Pengfei

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Covering Grid Dimensions: multiple refinement levels
by Carla Bernhardt 05 Apr '16

05 Apr '16

Dear YT Users, To better understand covering_grid (or smoothed_covering_grid), can someone explain what dimensions I should use when I have multiple levels of refinement? If I have 1 level of refinement from AMR data, the dimensions should be the same, I believe, but what if I have 2 or 3 levels of refinement? Should the fixed resolution region then have dimensions of dims*2^2 and dims*3^2 respectively? Here is one example from a tutorial <http://yt-project.org/doc/examining/low_level_inspection.html#examining-gri…> if that helps isolate my question: all_data_level_2 = ds.covering_grid(level=2, left_edge=[0,0.0,0.0], dims=ds.domain_dimensions * 2**2) Thanks in advance, Carla

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gadget onto unigrid
by Desika Narayanan 29 Mar '16

29 Mar '16

Hi All, Is it possible to deposit the particles from a gadget data set onto a uniform grid in yt? Or, could it be possible to trick the octree deposition into doing it by forcing no refinements, but some sort of native grid resolution? thanks, desika

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yt-3.2.1 installation error
by Muhammad Latif 08 Mar '16

08 Mar '16

Hi all, I'm getting the following error while installing yt-3.2.1 latest release. Any idea what is going on here? thanks in advance, cheers Latif Installing nose-1.3.6 Installing python-hglib-1.6 Installing sympy-0.7.6 Doing yt update, wiping local changes and updating to branch stable install_script.sh: line 1025: cd: /home/latif/YT/yt-x86_64/src/yt-hg/: No such file or directory Installing yt ******************************************** FAILURE REPORT: ******************************************** running install_data copying doc/man/isympy.1 -> /home/latif/YT/yt-x86_64/share/man/man1 running install_egg_info Writing /home/latif/YT/yt-x86_64/lib/python2.7/site-packages/sympy-0.7.6-py2.7.egg-info Collecting jinja2 Using cached Jinja2-2.8-py2.py3-none-any.whl Collecting MarkupSafe (from jinja2) Installing collected packages: MarkupSafe, jinja2 Successfully installed MarkupSafe-0.23 jinja2-2.8 /home/latif/YT/yt-x86_64/bin/python2.7: can't open file 'setup.py': [Errno 2] No such file or directory ******************************************** ******************************************** Failure. Check /home/latif/YT/yt-x86_64/yt_install.log. The last 10 lines are above.

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Error in making light ray for a gadget dataset
by Bili Dong - Gmail 01 Mar '16

01 Mar '16

Hi yt users, I'm trying to make a light ray for a gadget dataset using this script: http://paste.yt-project.org/show/6234/ But I get the following error: ``` /Users/qobilidop/repos/yt/yt/geometry/geometry_handler.py in fcoords(self) 320 c = obj.select_fcoords(self.dobj) 321 if c.shape[0] == 0: continue--> 322 ci[ind:ind+c.shape[0], :] = c 323 ind += c.shape[0] 324 return ci ValueError: could not broadcast input array from shape (81,3) into shape (40,3) ``` My yt is on the changeset d47150dfbde6. I'm wondering if I'm doing it the correct way? And how could I solve the problem? Thanks, Bili

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Google Summer of Code 2016
by Nathan Goldbaum 29 Feb '16

29 Feb '16

Hi all, Google announced today that yt has been accepted for Google Summer of Code 2016 as part of the OpenAstronomy organization! Please forward this message to students at any level who might be interested in getting paid to improve yt this summer. Ideas for yt projects are here: http://openastronomy.org/gsoc/gsoc2016/ideas.html#yt More details about applying to be a Google Summer of Code student are available here: https://summerofcode.withgoogle.com/ Students will be able to apply from March 14th until March 25th. Please feel free to contact me if you have any specific questions. -Nathan

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phase plot and time series
by Mateusz Ruszkowski 29 Feb '16

29 Feb '16

Hi, Is there a simple way in yt to generate a "phase plot" of the gas density, with time and radius on the axes, using a time series of data files? Thanks, Mateusz

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