<div dir="ltr"><div>Dear Suoqing Ji:<br><br></div>I could not find the script you attached neither in the email text nor in the google drive<br><div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 11, 2016 at 2:12 PM, <span dir="ltr"><<a href="mailto:yt-users-request@lists.spacepope.org" target="_blank">yt-users-request@lists.spacepope.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Send yt-users mailing list submissions to<br>
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Today's Topics:<br>
<br>
1. Re: Camera/Off Axis Optioons (Suoqing Ji)<br>
2. LightRay class (Fei Li)<br>
3. Re: LightRay class (Cameron Hummels)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Wed, 11 May 2016 11:25:53 -0700<br>
From: Suoqing Ji <<a href="mailto:suoqing@physics.ucsb.edu" target="_blank">suoqing@physics.ucsb.edu</a>><br>
To: Discussion of the yt analysis package<br>
<<a href="mailto:yt-users@lists.spacepope.org" target="_blank">yt-users@lists.spacepope.org</a>><br>
Subject: Re: [yt-users] Camera/Off Axis Optioons<br>
Message-ID: <<a href="mailto:3BCF6B56-E116-4C42-AED8-13E541829F86@physics.ucsb.edu" target="_blank">3BCF6B56-E116-4C42-AED8-13E541829F86@physics.ucsb.edu</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi Sushil,<br>
<br>
I do not know which file in your google drive is the one you used to make the plot, but I found some potential problems in a similar script yt_frb_offaxis.py:<br>
<br>
1. When you load the data, with data = dict(?), the key values should be ?velocity_x/y/z? instead of ?cutting_plane_velocity_x/y/z?, since the later can be derived from the velocity field you provided;<br>
<br>
2. The data for stream plot should not be normalized;<br>
<br>
Here I attached the script, and you should be able to produce the figure without problem.<br>
<br>
Best wishes,<br>
--<br>
Suoqing JI<br>
Ph.D Candidate<br>
Department of Physics<br>
University of California, Santa Barbara<br>
<a href="http://web.physics.ucsb.edu/~suoqing" rel="noreferrer" target="_blank">http://web.physics.ucsb.edu/~suoqing</a><br>
<br>
<br>
> On May 11, 2016, at 9:01 AM, Sushilkumar <<a href="mailto:sushil.sush19us@gmail.com" target="_blank">sushil.sush19us@gmail.com</a>> wrote:<br>
><br>
> Dear Suoqing JI:<br>
><br>
> I tried with both factor=1 and deleting the ::factor (yt_frb_offaxis.py) but the same issue still persist (L(1,0,0) N(0,1,1).png). The only difference being that without the "factor" it takes longer time to compute than for a "factor=20".<br>
><br>
> For same data if I use "slc.annoate_streamline" gives approximately proper results (UniformGridData_Slice_y_field_x_t000.png) but without the offaxis<br>
><br>
> Any suggestions.<br>
><br>
> Thanks in advance<br>
><br>
> <a href="https://drive.google.com/open?id=0B4g8shg4DL7oak5PLWVVdG5UMHc" rel="noreferrer" target="_blank">https://drive.google.com/open?id=0B4g8shg4DL7oak5PLWVVdG5UMHc</a> <<a href="https://drive.google.com/open?id=0B4g8shg4DL7oak5PLWVVdG5UMHc" rel="noreferrer" target="_blank">https://drive.google.com/open?id=0B4g8shg4DL7oak5PLWVVdG5UMHc</a>><br>
> --<br>
> SK2<br>
><br>
> "Claiming that something can move faster than light is a good conversation-stopper in physics. People edge away from you in cocktail parties; friends never return phone calls. You just don?t mess with Albert Einstein."<br>
><br>
> _______________________________________________<br>
> yt-users mailing list<br>
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<br>
Message: 2<br>
Date: Wed, 11 May 2016 19:06:49 +0000<br>
From: Fei Li <<a href="mailto:lif.li@mail.utoronto.ca" target="_blank">lif.li@mail.utoronto.ca</a>><br>
To: "<a href="mailto:yt-users@lists.spacepope.org" target="_blank">yt-users@lists.spacepope.org</a>" <<a href="mailto:yt-users@lists.spacepope.org" target="_blank">yt-users@lists.spacepope.org</a>><br>
Subject: [yt-users] LightRay class<br>
Message-ID:<br>
<<a href="mailto:CY1PR03MB2378B7748FFAB0F47A379797BF720@CY1PR03MB2378.namprd03.prod.outlook.com" target="_blank">CY1PR03MB2378B7748FFAB0F47A379797BF720@CY1PR03MB2378.namprd03.prod.outlook.com</a>><br>
<br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hello yt users,<br>
<br>
I tried to use the LightRay class to generate a light ray for one of my gridded simulation snapshots. The simulation is from the FIRE project which used a heavily modified version of Gadget-3 called GIZMO written by Phil Hopkins. And the error I got is: ValueError: need more than 1 value to unpack.<br>
<br>
Here is my script:<br>
<br>
$ python<br>
Python 2.7.11 |Continuum Analytics, Inc.| (default, Dec 6 2015, 18:08:32)<br>
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2<br>
Type "help", "copyright", "credits" or "license" for more information.<br>
Anaconda is brought to you by Continuum Analytics.<br>
Please check out: <a href="http://continuum.io/thanks" rel="noreferrer" target="_blank">http://continuum.io/thanks</a> and <a href="https://anaconda.org" rel="noreferrer" target="_blank">https://anaconda.org</a><br>
>>> import yt<br>
>>> import trident<br>
>>> fn='/cita/h/home-2/fli/FIRE/grid_190_256.hdf5'<br>
>>> light_ray=trident.LightRay(fn,simulation_type='Gadget')<br>
Traceback (most recent call last):<br>
File "<stdin>", line 1, in <module><br>
File "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/analysis_modules/cosmological_observation/light_ray/light_ray.py", line 152, in __init__<br>
find_outputs=find_outputs)<br>
File "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/analysis_modules/cosmological_observation/cosmology_splice.py", line 34, in __init__<br>
find_outputs=find_outputs)<br>
File "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/convenience.py", line 153, in simulation<br>
find_outputs=find_outputs)<br>
File "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/frontends/gadget/simulation_handling.py", line 75, in __init__<br>
find_outputs=find_outputs)<br>
File "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/data_objects/time_series.py", line 414, in __init__<br>
self._parse_parameter_file()<br>
File "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/frontends/gadget/simulation_handling.py", line 289, in _parse_parameter_file<br>
param, vals = (i.strip() for i in line.split(None, 1))<br>
ValueError: need more than 1 value to unpack<br>
<br>
Thanks for your help,<br>
<br>
Fei Li<br>
<br>
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<br>
Message: 3<br>
Date: Wed, 11 May 2016 12:12:08 -0700<br>
From: Cameron Hummels <<a href="mailto:chummels@gmail.com" target="_blank">chummels@gmail.com</a>><br>
To: Discussion of the yt analysis package<br>
<<a href="mailto:yt-users@lists.spacepope.org" target="_blank">yt-users@lists.spacepope.org</a>><br>
Subject: Re: [yt-users] LightRay class<br>
Message-ID:<br>
<CACyTu7FeqQUkhdE034q182uvPYm=<a href="mailto:50p9J2qP509x%2BxQBuUYQZw@mail.gmail.com" target="_blank">50p9J2qP509x+xQBuUYQZw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi Fei Li,<br>
<br>
Since you're primarily trying to use Trident's functionality which wraps<br>
around the LightRay class, you should probably direct questions of this<br>
nature to the Trident mailing list. I'll start a discussion there on this<br>
topic now and cc you.<br>
<br>
<a href="mailto:trident-project-users@googlegroups.com" target="_blank">trident-project-users@googlegroups.com</a><br>
<br>
Cameron<br>
<br>
On Wed, May 11, 2016 at 12:06 PM, Fei Li <<a href="mailto:lif.li@mail.utoronto.ca" target="_blank">lif.li@mail.utoronto.ca</a>> wrote:<br>
<br>
> Hello yt users,<br>
><br>
> I tried to use the LightRay class to generate a light ray for one of my<br>
> gridded simulation snapshots. The simulation is from the FIRE project which<br>
> used a heavily modified version of Gadget-3 called GIZMO written by Phil<br>
> Hopkins. And the error I got is: ValueError: need more than 1 value to<br>
> unpack.<br>
><br>
> Here is my script:<br>
><br>
> $ python<br>
> Python 2.7.11 |Continuum Analytics, Inc.| (default, Dec 6 2015, 18:08:32)<br>
> [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2<br>
> Type "help", "copyright", "credits" or "license" for more information.<br>
> Anaconda is brought to you by Continuum Analytics.<br>
> Please check out: <a href="http://continuum.io/thanks" rel="noreferrer" target="_blank">http://continuum.io/thanks</a> and <a href="https://anaconda.org" rel="noreferrer" target="_blank">https://anaconda.org</a><br>
> >>> import yt<br>
> >>> import trident<br>
> >>> fn='/cita/h/home-2/fli/FIRE/grid_190_256.hdf5'<br>
> >>> light_ray=trident.LightRay(fn,simulation_type='Gadget')<br>
> Traceback (most recent call last):<br>
> File "<stdin>", line 1, in <module><br>
> File<br>
> "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/analysis_modules/cosmological_observation/light_ray/light_ray.py",<br>
> line 152, in __init__<br>
> find_outputs=find_outputs)<br>
> File<br>
> "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/analysis_modules/cosmological_observation/cosmology_splice.py",<br>
> line 34, in __init__<br>
> find_outputs=find_outputs)<br>
> File<br>
> "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/convenience.py",<br>
> line 153, in simulation<br>
> find_outputs=find_outputs)<br>
> File<br>
> "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/frontends/gadget/simulation_handling.py",<br>
> line 75, in __init__<br>
> find_outputs=find_outputs)<br>
> File<br>
> "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/data_objects/time_series.py",<br>
> line 414, in __init__<br>
> self._parse_parameter_file()<br>
> File<br>
> "/home/fli/opt/yt-conda/lib/python2.7/site-packages/yt/frontends/gadget/simulation_handling.py",<br>
> line 289, in _parse_parameter_file<br>
> param, vals = (i.strip() for i in line.split(None, 1))<br>
> ValueError: need more than 1 value to unpack<br>
><br>
> Thanks for your help,<br>
><br>
> Fei Li<br>
><br>
><br>
><br>
> _______________________________________________<br>
> yt-users mailing list<br>
> <a href="mailto:yt-users@lists.spacepope.org" target="_blank">yt-users@lists.spacepope.org</a><br>
> <a href="http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org" rel="noreferrer" target="_blank">http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org</a><br>
><br>
><br>
<br>
<br>
--<br>
Cameron Hummels<br>
NSF Postdoctoral Fellow<br>
Department of Astronomy<br>
California Institute of Technology<br>
<a href="http://chummels.org" rel="noreferrer" target="_blank">http://chummels.org</a><br>
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</blockquote></div><br><br clear="all"><br>-- <br><div><span style="border-collapse:collapse"><div style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><b><i>SK<sup>2</sup></i></b></span></div><div style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><b><i><sup><br></sup></i></b></span></div><div><span style="color:rgb(80,0,80);font-family:arial,sans-serif;border-collapse:collapse"><b><sup>"</sup></b></span><font face="arial, sans-serif" color="#500050"><b>Claiming that something can move faster than light is a good conversation-stopper in physics. People edge away from you in cocktail parties; friends never return phone calls. You just don’t mess with Albert Einstein.</b></font><b style="color:rgb(80,0,80);font-family:arial,sans-serif"><sup>"</sup></b></div><div style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><br></div></span></div>
</div></div></div>