thank you for the patch. I pulled the code (#2213) into my local copy and gave it as in-depth a test as I could. It works, except for one detail.
I am unsure whether the problem arises from the frontend or through the unit system, but what I am currently facing is: fields from known_other_fields do not have units (ergo are dimensionless) in datasets, no matter what the unit in known_other_fields.
I've attached a script which tries to show the problem by using one of the example files Axel linked to in his last mail.
On 03/06/16 23:05, Nathan Goldbaum wrote:
I've opened a pull request to fix the issue you discovered with magnetic units:
I'd appreciate it if one of you could give it a test. Let me know if you have questions about how to pull a pull request in locally with mercurial.
I haven't had a time to look at the issue you were having with the 'all' particle union, but I have it on my list to look at it.
On Fri, May 27, 2016 at 2:37 AM, Huebl, Axel <firstname.lastname@example.org mailto:email@example.com> wrote:
Dear Nathan and John, thank you for the quick answers. Yes, the resources to reproduce the questions are: Repo: https://bitbucket.org/C0nsultant/openpmd/src?at=yt Example Files: PIConGPU > 2D3V > one of the .h5 files https://owncloud.hzdr.de/index.php/s/ouisGZe5M0wCVzj password: openPMD Example script (attached, like last mail). Axel On 24.05.2016 18 <tel:24.05.2016%2018>:37, Nathan Goldbaum wrote: > > > On Tue, May 24, 2016 at 11:30 AM, Huebl, Axel <firstname.lastname@example.org <mailto:email@example.com> > <mailto:firstname.lastname@example.org <mailto:email@example.com>>> wrote: > > Hi yt-devs, > > I am forwarding this conversation to the public list to keep it open for > others to join in and to build up a record that might help others. > > Our new student Fabian updated our frontend and implemented particle > readers. Unfortunately some details of the particle "fields" still cause > some bumps that we can not get our head around. > > We are now able to read fields and particles, even chunk-wise, and can > work with the data we read in python scripts via the all_data() method. > > Nevertheless, using the particle scatter plots such as yt.ParticlePlot > seems not to work. We have some problems with unions / the "all" group > and the fact that we have several particle species (e.g., "hot > electrons", "cold electrons", "helium ions", "nitrogen ions", etc.) > > > The 'all' particle union should get set up automatically, but maybe > something is going wrong with that machinery. > > Can you create a test script that illustrates this issue using a > publicly available OpenPMD dataset? > > > > Also since the last rebase: did someone recently change the unit system > in yt? T for "Tesla" seems not to be understood any more. Is there a > changelog somewhere available? Do we have to describe our data in > cgs / mks? > > > I just double-checked, and Tesla should be working: > > In : from yt import YTQuantity > > In : YTQuantity(1, 'T') > Out: 1.0 T > > In : YTQuantity(1, 'T').to_equivalent('G', 'CGS') > Out: 10000.0 G > > Can you explain a little bit more what issue you're having? A test > script that illustrates the issue would also help. > > > Would someone be interested for a quick heads up via e.g., skype / > web-rtc so we can ask specific questions? > > Fabian is around on Tuesdays and Fridays, something like early CA time, > and late GER time usually works great (e.g., 9pm-PDT / 6pm-CEST). > > Our current branch HEAD can be found here (->yt->frontends->openPMD): > https://bitbucket.org/C0nsultant/openpmd/src?at=yt > > And an example script is attached. > > > Thanks a lot! > Axel > > -- Axel Huebl Phone +49 351 260 3582 <tel:%2B49%20351%20260%203582> https://www.hzdr.de/crp Computational Radiation Physics Laser Particle Acceleration Division Helmholtz-Zentrum Dresden - Rossendorf e.V. Bautzner Landstrasse 400, 01328 Dresden POB 510119, D-01314 Dresden Vorstand: Prof. Dr.Dr.h.c. R. Sauerbrey Prof. Dr.Dr.h.c. P. Joehnk VR 1693 beim Amtsgericht Dresden _______________________________________________ yt-dev mailing list firstname.lastname@example.org <mailto:email@example.com> http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org
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