<div>Hi,</div><div><br></div><div>On-disk fields are always presented in code units. As you saw, for your data you've specified that code units *are* cgs, however that doesn't change the rule that I -disk fields are presented using code units.</div><div><br></div><div>To get fields that are presented in CGS, you should use "universal" field names. Unfortunately I'm on my phone right now so I can't look up the universal field names for those two fields.</div><div><br></div><div>Finally, you can always convert to CGS:</div><div><br></div><div><span style="font-size:14.666666984558105px">ds.point([0,0,0])['magz'].to('G')</span><br></div><div><br></div><div><div class="gmail_quote"><div>On Fri, Feb 17, 2017 at 11:55 AM Yingchao Lu <<a href="mailto:yingchao.lu@rice.edu">yingchao.lu@rice.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="#0563C1" vlink="#954F72" class="gmail_msg"><div class="m_8661670198561155562WordSection1 gmail_msg"><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">Hi All,<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">My simulation seems to have no detail information on units, so I want to assign cgs to the output. However, when I do the following <u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">---------------------------------------------------------------------<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">import yt<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">units_override = {"length_unit":(1.0,"cm"),<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"> "time_unit":(1.0,"s"),<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"> "mass_unit":(1.0,"g"),<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"> 'nele_unit': (1.0, "cm**-3"),<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"> "magnetic_unit":(1.0,"gauss")}<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">ds = yt.load('flash_hdf5_plt_cnt_0000', units_override=units_override)<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">print ds.point([0,0,0])['magz']<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">print ds.point([0,0,0])['nele']<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">---------------------------------------------------------------------<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">The output is:<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">---------------------------------------------------------------------<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">[ 0.] code_magnetic<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">[ 2.87595814e+15] code_length**(-3)<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">---------------------------------------------------------------------<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">How can I get:<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">---------------------------------------------------------------------<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">[ 0.] gauss<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">[ 2.87595814e+15] cm**(-3)<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">---------------------------------------------------------------------<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">Thanks,<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p><p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">Yingchao<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p></div></div>_______________________________________________<br class="gmail_msg">
yt-users mailing list<br class="gmail_msg">
<a href="mailto:yt-users@lists.spacepope.org" class="gmail_msg" target="_blank">yt-users@lists.spacepope.org</a><br class="gmail_msg">
<a href="http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org" rel="noreferrer" class="gmail_msg" target="_blank">http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org</a><br class="gmail_msg">
</blockquote></div></div>