Hi Matt,<div><br></div><div>That didn't seem to help. With that change I still get the same errors. </div><div><br></div><div>I have put a 64MB dataset here: </div><div><a href="http://corvette.colorado.edu/~skillman/simulations/kh_3d_mhd_hlld_128_beta5000_sub_tanhd.0030.gdf">http://corvette.colorado.edu/~skillman/simulations/kh_3d_mhd_hlld_128_beta5000_sub_tanhd.0030.gdf</a></div>
<div><br></div><div>which can be loaded with</div><div>yt load kh_3d_mhd_hlld_128_beta5000_sub_tanhd.0030.gdf<br><br>I have had to make some changes to other parts of the gdf frontend, so you should probably work off the yt-gdf fork tip:</div>
<div><a href="https://bitbucket.org/samskillman/yt-gdf/changeset/57483ef32927">https://bitbucket.org/samskillman/yt-gdf/changeset/57483ef32927</a></div><div><br></div><div>I'm around on IRC now as well.</div><div><br>
</div><div>Thanks,</div><div>Sam<br><br><div class="gmail_quote">On Wed, Jan 4, 2012 at 4:57 AM, Matthew Turk <span dir="ltr"><<a href="mailto:matthewturk@gmail.com">matthewturk@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Sam,<br>
<div class="im"><br>
On Wed, Jan 4, 2012 at 6:52 AM, Matthew Turk <<a href="mailto:matthewturk@gmail.com">matthewturk@gmail.com</a>> wrote:<br>
> Hi Sam,<br>
><br>
> On Tue, Jan 3, 2012 at 9:01 PM, Sam Skillman <<a href="mailto:samskillman@gmail.com">samskillman@gmail.com</a>> wrote:<br>
>> Hi all,<br>
>><br>
>> I'm running into an issue with translation dictionaries for the GDF<br>
>> frontend.<br>
>><br>
>> On the tip, if I load up a gdf dataset, and do:<br>
>><br>
>> pf.h.find_max('Density')<br>
>><br>
>> I get:<br>
>><br>
>> <a href="http://paste.yt-project.org/show/2008/" target="_blank">http://paste.yt-project.org/show/2008/</a><br>
>><br>
>> If I instead do pf.h.find_max('density'), I get what looks like the same<br>
>> error.<br>
>><br>
>> If I replace line 56 in yt/frontends/gdf/fields.py<br>
>><br>
>> 55 KnownGDFFields = FieldInfoContainer()<br>
>> 56 add_gdf_field = KnownGDFFields.add_field<br>
>><br>
>> with<br>
>><br>
>> 57 add_gdf_field = GDFFieldInfo.add_field<br>
>><br>
>> It works fine.<br>
><br>
> Hm, this is the opposite of what I'd expect. "Known" is to indicate<br>
> that a field may exist in a file, whereas the standard is to indicate<br>
> it can be derived. By that logic, "Known" is where "density" should<br>
> go and standard is where "Density" should go, which in my version of<br>
> the code is how it is done.<br>
<br>
</div>One quick thought. Can you try with the validators for 'density'<br>
removed, using the standard code as it is in the tip of the main repo?<br>
i.e., change<br>
<br>
add_gdf_field("density", function=NullFunc, take_log=True,<br>
validators = [ValidateDataField("density")],<br>
units=r"\rm{g}/\rm{cm}^3",<br>
projected_units =r"\rm{g}/\rm{cm}^2")<br>
<br>
to<br>
<br>
add_gdf_field("density", function=NullFunc, take_log=True,<br>
units=r"\rm{g}/\rm{cm}^3",<br>
projected_units =r"\rm{g}/\rm{cm}^2")<br>
<br>
-Matt<br>
<div class="HOEnZb"><div class="h5"><br>
><br>
> Can you supply a small sample GDF dataset so I can dig in?<br>
><br>
> -Matt<br>
><br>
>><br>
>> Alternatively, if I replace<br>
>><br>
>> 96 for f,v in log_translation_dict.items():<br>
>> 97 add_field(f, function=TranslationFunc(v), take_log=True)<br>
>> 98<br>
>> 99 for f,v in translation_dict.items():<br>
>> 100 add_field(f, function=TranslationFunc(v), take_log=False)<br>
>><br>
>> with<br>
>><br>
>> 102 def _generate_translation(mine, theirs, take_log=False):<br>
>> 103 add_field(theirs, function=lambda a, b: b[mine], take_log=take_log)<br>
>> 104<br>
>> 105<br>
>> 106 for f,v in log_translation_dict.items():<br>
>> 107 if v not in GDFFieldInfo:<br>
>> 108 add_field(v, function=lambda a,b: None, take_log=True,<br>
>> 109 validators = [ValidateDataField(v)])<br>
>> 110 #print "Setting up translator from %s to %s" % (v, f)<br>
>> 111 _generate_translation(v, f, take_log=True)<br>
>> 112<br>
>> 113<br>
>> 114 for f,v in translation_dict.items():<br>
>> 115 if v not in GDFFieldInfo:<br>
>> 116 add_field(v, function=lambda a,b: None, take_log=False,<br>
>> 117 validators = [ValidateDataField(v)])<br>
>> 118 #print "Setting up translator from %s to %s" % (v, f)<br>
>> 119 _generate_translation(v, f, take_log=False)<br>
>><br>
>> as is done in the orion reader, it works fine.<br>
>><br>
>> Anyways, if someone sees what is going on here, let me know. I'll also be<br>
>> on IRC for a bit longer tonight and all tomorrow.<br>
>><br>
>> Thanks,<br>
>> Sam<br>
>><br>
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>><br>
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</div></div></blockquote></div><br></div>