Mailman 3 March 2012 - yt-users

getting all the data in a subgrid
by Jean-Claude Passy March 8, 2012

March 8, 2012

Hi all, As far as I understand, a: ------------------------------------ region = pf.h.region(...) density = region["Density"] ------------------------------------ will return the density field without considering cells that have subcells. How can I access ALL the data stored in the hdf5 file? I have tried to use ------------------------------------ grid = pf.h.grids[i] rhogrid = grid.get_data("Density") ------------------------------------ but I would like to get a 1D array. … [View More]

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find_max error
by Stella Offner March 7, 2012

March 7, 2012

Hi, I'm working with an undergrad student doing Orion data analysis using the most recent stable version of yt (he attended the recent yt workshop - yea!). However, he is encountering this error with his yt installation: File "slicePJ.py", line 18, in <module> c = pf.h.find_max("Density") #this involves finding the max density File "/usr/local/yt/yt-x86_64/src/yt-hg/yt/data_objects/ static_output.py", line 172, in hierarchy self, data_style=self.data_style) File "/usr/… [View More]

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Feature Requests
by Matthew Turk March 6, 2012

March 6, 2012

Hi all, Just a reminder: feature requests can (and *should*) be submitted to the BitBucket issue tracker here: https://bitbucket.org/yt_analysis/yt/issues/new This will help yt-dev track where there are deficiencies, things that can be corrected, and places for improvement -- even big, gigantic long-reaching features. :) Best, Matt

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Reading in Potential Field
by meecegre＠msu.edu March 3, 2012

March 3, 2012

Hi Everyone, I'm trying to use yt to calculate the spin parameter of a halo generated by Enzo. I have enzo writing out the potential using the -g flag, but when yt reads in the field, it isn't able to figure out the units or recognize it as a known field. Also, yt is keeping the potential data in code units, rather than converting to CGS. When I make a plot of the potential, the plot says that the units are unknown. When I load the dataset into yt, the relavant output is yt : [INFO … [View More]

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Strange artifacts in volume rendering movie made using parallel_objects
by Nathan Goldbaum March 1, 2012

March 1, 2012

Hi all, I'm running into some weird issues when I try to make a time series volume rendering movie using parallel_objects. The script I'm running is pasted here: http://paste.yt-project.org/show/2206/ And the resulting movie is located here: http://ucolick.org/~goldbaum/files/volume.avi The movie is stitched together using ffmpeg but i've confirmed that the artifacts are present in the individual frames. This is not due to my use of the enhance script since the artifacts appear in the … [View More]

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Kraken yt/dev import error
by Britton Smith March 1, 2012

March 1, 2012

Hi, The yt/dev and yt/dev-local modules on Kraken are giving errors when trying to do 'from yt.mods import *'. Just doing that give the following error: http://paste.yt-project.org/show/5A6G4lAjr7UE2y1wsLNQ I get the exact same thing with both of those two modules. Thanks! Britton

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