Mailman 3 June 2023 - yt-users

Changing the "center" field parameter in radial velocity calculation
by Samuel Patrick June 28, 2023

June 28, 2023

Hi, I have a region of space I'm trying to perform an OffAxisSlicePlot of, with the field in question being the gas velocity towards a specific predetermined point within that space. How do I effectively change the "center" parameter within the ('gas', 'velocity_spherical_radius') field to achieve this, so that the normal vector is pointing between the gas coordinates and the point in question? Many thanks, Sam Patrick The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. Is e buidheann carthannais a th’ ann an Oilthigh Dhùn Èideann, clàraichte an Alba, àireamh clàraidh SC005336.

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yt-napari tutorial series and live virtual events
by Chris Havlin June 26, 2023

June 26, 2023

Some exciting yt-napari announcements! -------------------------------------- yt-napari video tutorial series -------------------------------------- The first two videos in the yt-napari tutorial series are now available, covering introductions to napari and yt-napari. 1. Intro to napari for yt users: https://youtu.be/tNdIetamf98 2. Tour of the yt-napari plugin: https://youtu.be/ta7rBOYNpmg Future videos will cover more advanced napari and yt-napari usage and will be added to the yt-napari playlist here: https://www.youtube.com/playlist?list=PLqbhAmYZU5KxuAcnNBIxyBkivUEiKswq1 --------------------------- yt-napari live events --------------------------- I'll be convening some live weekly events: starting off with a drop-in virtual help and discussion session on zoom on Thursday June 29 at 10am central time. Come with questions or development ideas! Zoom link will be posted in the #yt-napari channel of the yt slack (remember, you can join the yt slack via the link at https://yt-project.org/community.html ). ----------------------------- other ways to get help ----------------------------- - join the #yt-napari channel in the yt slack and ask there - post in the general yt help channel and ping me (@Chris Havlin) - send me a direct message on slack (@Chris Havlin) Happy visualizing! Chris

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yt_idv 0.3.1
by Chris Havlin June 16, 2023

June 16, 2023

Hello there, We're happy to announce that yt_idv (https://github.com/yt-project/yt_idv) version 0.3.1 is out. The 0.3 series includes a number of new features and fixes including the ability to now plot slices, isocontours and arbitrary curves! For full release notes, see v0.3.1 <https://github.com/yt-project/yt_idv/releases/tag/v0.3.1> and v0.3.0 <https://github.com/yt-project/yt_idv/releases/tag/v0.3.0>. Take it for a spin and let us know if you have any problems (open an issue <https://github.com/yt-project/yt_idv/issues/new> or reach on on the yt slack)! Best, Chris Havlin

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What's up in yt for June 2023
by Matthew Turk June 8, 2023

June 8, 2023

Hi everyone! We're trying something new -- there's a lot going on in the yt community, and we wanted to tell you about some of it. ## yt 4.2 As you may have seen recently, yt 4.2 was released at the end of May: https://github.com/yt-project/yt/releases/tag/yt-4.2.0 Many, *many* thanks to Clément Robert for pushing forward so much of this release. It includes a number of enhancements, but perhaps one of the most important is a major improvement to how yt stores and handles index files for particle datasets. This work was a collaboration including John ZuHone and Kacper Kowalik. We also want to take this opportunity to remind folks that yt development can be community-driven -- which means sharing with us feedback, thoughts on what can be improved, and even chipping in to help out with code, documentation, and even just talking about what you do with yt on Slack or over email -- see the bottom of this message for more! We have a list of fun, introductory issues for new contributors: https://github.com/yt-project/yt/labels/new%20contributor%20friendly and some we're looking for help with: https://github.com/yt-project/yt/labels/help%20wanted ## Workshop Presentations In April, we had an informal online workshop. The videos from that are now online and we invite you to check them out -- they cover an introduction to using yt and some of the basics of how to get started analyzing data. Day One: https://www.youtube.com/watch?v=h6NE32WagHs Day Two: https://www.youtube.com/watch?v=fn45FK7hX7Q Matt also streams development once in a while at twitch.tv/powersoffour , but be sure to manage your expectations on that front! ## Widgyts for Jupyter and yt One of the yt family of projects, Widgyts (https://widgyts.readthedocs.org/ and github.com/yt-project/widgyts ) just had another release in early April. Widgyts, as the *extremely* clever name suggests, is widgets for yt within Jupyter and Jupyterlab. The new version includes a mesh viewer for finite element meshes, as well as preliminary support for displaying particles in the viewer. If you're using AMR datasets or FEM, check it out! ## Libyt Shin-Rong Tsai and Hsi-Yu Schive are in the final stages of preparing the library 'libyt' for release, with initial connections to the GAMER code and Enzo. libyt is an in-situ analysis library that provides the ability to execute analysis and visualization during the course of large-scale computations. Look for more information soon, but the code is currently available at github.com/calab-ntu/libyt , and Shin-Rong will be giving a talk at Scipy 2023 about libyt. ## Scipy 2023 At Scipy 2023 this year, there will be two presentations about yt or yt-related projects. The first, from Chris Havlin, will be on July 13 at 3PM in Grand Salon C, in the "Earth, Ocean, Geo, and Atmospheric" track, on `yt_xarray`: https://cfp.scipy.org/2023/talk/QYHD3G/ The second, from Shin-Rong Tsai, will be on July 12 at 1:55PM in Grand Salon C, in the "Astronomy and Physics" track, on `libyt`: https://cfp.scipy.org/2023/talk/JTXC9W/ If you're at SciPy, come see them and say hi! Usually all the talks are recorded, and we'll be sure to include them in a future newsletter. ## Slack As a reminder, we have a Slack community where you can ask questions, suggest things for development, or just generally chat. You can join by visiting https://yt-project.org/slack.html . ## Tell Us About Your Stuff! We'd love to share news of your papers in our next newsletter -- so please reach out to matthewturk(a)gmail.com to share when you publish a paper that uses yt you'd like to have shared out. Even if you don't want us to include it in a newsletter, we still like to hear about them! And we would also *love* to have new blog posts for https://blog.yt-project.org/ , which Madicken Munk set up with a really cool autodeployment system -- you just need to make an issue in the repository (https://github.com/yt-project/blog ) to contribute an article! (for more info: https://yt-project.github.io/blog/posts/contributing/ ) That's all for now, folks -- happy computing!

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enzo-mrp-music/get_halo_initial_extent.py not working with yt 4.0.1
by C Bernhardt June 2, 2023

June 2, 2023

Dear yt users, I just updated yt to 4.0.1 and now I get this error message when trying to run enzo-mrp-music.py from John Wise on https://github.com/jwise77/enzo-mrp-music. Traceback (most recent call last): File "enzo-mrp-music/enzo-mrp-music.py", line 264, in <module> params = find_lagrangian_region(params) File "enzo-mrp-music/enzo-mrp-music.py", line 177, in find_lagrangian_region get_center_and_extent(params["halo_info"], File "enzo-mrp-music/get_halo_initial_extent.py", line 147, in get_center_and_extent halo_indices, halo_com, shifted = get_halo_indices(my_halo, final_dataset, File "enzo-mrp-music/get_halo_initial_extent.py", line 119, in get_halo_indices get_halo_sphere_particles(my_halo, dataset, radius_factor=radius_factor) File "enzo-mrp-music/get_halo_initial_extent.py", line 73, in get_halo_sphere_particles my_sphere = pf.h.sphere(my_halo_data['center'], radius_factor * r_200) AttributeError: 'EnzoDataset' object has no attribute 'h' I am honestly not sure what the attribute 'h' does in this case, so I didn't know what to try to adjust. Any suggestions for getting around this? Or how can I go back to yt 3? Kind regards, -- Carla Bernhardt PhD Student Universität Heidelberg ZAH Institut für Theoretische Astrophysik

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