Mailman 3 November 2015 - yt-dev

Issue #1142: ProfilePlot.from_profiles fails when passed two profile objects (yt_analysis/yt)
by Nathan Goldbaum 04 Nov '15

04 Nov '15

New issue 1142: ProfilePlot.from_profiles fails when passed two profile objects https://bitbucket.org/yt_analysis/yt/issues/1142/profileplotfrom_profiles-f… Nathan Goldbaum: The following test script (from mintaka on IRC): ``` #!python import yt import numpy as np from yt.units import kpc from matplotlib import pyplot as plt ds = yt.load('sizmbhloz-clref04SNth-rs9_a0.9011/sizmbhloz-clref04SNth-rs9_a0.9011.art') ad = ds.all_data() profiles = [] labels = [] profiles.append(yt.create_profile(ad, ["radius"], fields=['density'])) labels.append("density") profiles.append(yt.create_profile(ad, ["radius"], fields=[('deposit', 'N-BODY_density')])) labels.append('N-BODY') prf = yt.ProfilePlot.from_profiles(profiles, labels=labels) prf.save() ``` Raises the following error: ``` Traceback (most recent call last): File "test.py", line 15, in <module> prf = yt.ProfilePlot.from_profiles(profiles, labels=labels) File "/Users/goldbaum/Documents/yt-hg/yt/visualization/profile_plotter.py", line 416, in from_profiles return cls._initialize_instance(obj, profiles, labels, plot_specs, y_log) File "/Users/goldbaum/Documents/yt-hg/yt/visualization/profile_plotter.py", line 366, in _initialize_instance obj._setup_plots() File "/Users/goldbaum/Documents/yt-hg/yt/visualization/profile_plotter.py", line 340, in _setup_plots xtitle, ytitle = self._get_field_title(fname, profile) File "/Users/goldbaum/Documents/yt-hg/yt/visualization/profile_plotter.py", line 634, in _get_field_title y_unit = profile.field_units[field_y] KeyError: ('gas', 'density') ``` Probably we need to make sure that field name tuples are normalized somewhere. Responsible: ngoldbaum

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Issue #1141: Problem to sample a ray in yt 3.2 (yt_analysis/yt)
by Kuo-Chuan Pan 03 Nov '15

03 Nov '15

New issue 1141: Problem to sample a ray in yt 3.2 https://bitbucket.org/yt_analysis/yt/issues/1141/problem-to-sample-a-ray-in… Kuo-Chuan Pan: Dear all, I am not sure if here is the correct place to ask question (if not, please forgive me). Recently, I am updating my analysis codes from yt 2.x to 3.2. I found that the pf.h.ray method is very different in between yt 2.x and 3.x. I use pf.h.ray(point1, point2) in yt 2.x and ds.ray(point1,point2) in yt3.2. In yt 3.2, sometimes I got very strange results in ray('t'). The returned value is simply 0 1, instead of an array of sampled data. In addition, sometimes the returned array in ray('t') is not sorted in radius. I know that I could sort the array by using argsort() but is this due to performance issue or did I made some stupid mistake to use ds.ray()? Also, is this a bug when ds.ray(point1,point2) returns just 0 1? I am sure I am giving correct point1 and point2 and with a reasonable length. Many thanks, Kuo-Chuan

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Error in new frontend
by Erik Schnetter 01 Nov '15

01 Nov '15

I'm developing a new frontend for yt <https://bitbucket.org/eschnett/yt>. I am currently encountering this error <http://pastebin.com/EYauU1rv>. I don't know what causes this error. The error message mentions an __init__ function, but I don't know which __init__ function this is, nor whether the problem is in the caller or the callee. I'd be grateful for any feedback. -erik -- Erik Schnetter <schnetter(a)gmail.com> http://www.perimeterinstitute.ca/personal/eschnetter/

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New frontend for new Cactus file format
by Erik Schnetter 01 Nov '15

01 Nov '15

We (the Einstein Toolkit community; see <http://einsteintoolkit.org>) are examining / experimenting with new file formats for our 3D simulations. As part of these experiments, we also want to examine how they integrate with visualization toolkits. I have forked yt on Bitbucket <https://bitbucket.org/eschnett/yt>, and am working on a new front end. At the moment, I cannot make any promise as to whether this will work out, but I thought I'd let you know anyway. -erik -- Erik Schnetter <schnetter(a)gmail.com> http://www.perimeterinstitute.ca/personal/eschnetter/

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