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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Hi Nathan,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Thanks. ds.field_info shows<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>------------------begin------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>{('flash', 'abar'): <yt.fields.derived_field.DerivedField at 0xb4f5828>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'cham'): <yt.fields.derived_field.DerivedField at 0xb35c4a8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'dens'): <yt.fields.derived_field.DerivedField at 0xb35c1d0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'depo'): <yt.fields.derived_field.DerivedField at 0xb35c400>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', 'edens'): <yt.fields.derived_field.DerivedField at 0xb4f57b8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'eint'): <yt.fields.derived_field.DerivedField at 0xb4f5748>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'magp'): <yt.fields.derived_field.DerivedField at 0xb35ca58>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'magz'): <yt.fields.derived_field.DerivedField at 0xb35ca90>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', 'nele'): <yt.fields.derived_field.DerivedField at 0xb4f5780>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', 'nion'): <yt.fields.derived_field.DerivedField at 0xb4f57f0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'pres'): <yt.fields.derived_field.DerivedField at 0xb35cac8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'sumy'): <yt.fields.derived_field.DerivedField at 0xb35cb70>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'targ'): <yt.fields.derived_field.DerivedField at 0xb35ccf8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'tele'): <yt.fields.derived_field.DerivedField at 0xb35cba8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'tion'): <yt.fields.derived_field.DerivedField at 0xb35cb38>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'velx'): <yt.fields.derived_field.DerivedField at 0xb35cd30>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'vely'): <yt.fields.derived_field.DerivedField at 0xb35cd68>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('flash', u'ye'): <yt.fields.derived_field.DerivedField at 0xb35cdd8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'H_nuclei_density'): <yt.fields.derived_field.DerivedField at 0xb556ba8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'He_nuclei_density'): <yt.fields.derived_field.DerivedField at 0xb556be0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'averaged_density'): <yt.fields.derived_field.DerivedField at 0xb54b7f0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'cell_mass'): <yt.fields.derived_field.DerivedField at 0xb549e48>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'density'): <yt.fields.derived_field.DerivedField at 0xb35c9b0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'density_gradient_z'): <yt.fields.derived_field.DerivedField at 0xb54b668>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'dynamical_time'): <yt.fields.derived_field.DerivedField at 0xb52a390>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'mach_number'): <yt.fields.derived_field.DerivedField at 0xb549f28>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'magnetic_field_z'): <yt.fields.derived_field.DerivedField at 0xb35cb00>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'mean_molecular_weight'): <yt.fields.derived_field.DerivedField at 0xb54b0b8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'number_density'): <yt.fields.derived_field.DerivedField at 0xb4f5860>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'pressure'): <yt.fields.derived_field.DerivedField at 0x440a630>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'pressure_gradient_z'): <yt.fields.derived_field.DerivedField at 0xb54b320>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'shear_mach'): <yt.fields.derived_field.DerivedField at 0xb556048>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'sound_speed'): <yt.fields.derived_field.DerivedField at 0xb549e80>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'sz_kinetic'): <yt.fields.derived_field.DerivedField at 0xb526128>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'thermal_energy'): <yt.fields.derived_field.DerivedField at 0xb35c9e8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'total_energy'): <yt.fields.derived_field.DerivedField at 0xb0e4198>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'velocity_magnitude'): <yt.fields.derived_field.DerivedField at 0xb526b70>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'velocity_x'): <yt.fields.derived_field.DerivedField at 0xb35cda0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('gas', 'velocity_y'): <yt.fields.derived_field.DerivedField at 0xb35ce10>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'cell_volume'): <yt.fields.derived_field.DerivedField at 0xb0e40b8>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'dr'): <yt.fields.derived_field.DerivedField at 0xb35cf28>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'dtheta'): <yt.fields.derived_field.DerivedField at 0xb0e4048>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'dz'): <yt.fields.derived_field.DerivedField at 0xb35cf98>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'grid_indices'): <yt.fields.derived_field.DerivedField at 0xb556278>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'grid_level'): <yt.fields.derived_field.DerivedField at 0xb556198>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'ones'): <yt.fields.derived_field.DerivedField at 0xb556320>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'path_element_r'): <yt.fields.derived_field.DerivedField at 0xb0e40f0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'path_element_theta'): <yt.fields.derived_field.DerivedField at 0xb0e4128>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index',<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> 'path_element_z'): <yt.fields.derived_field.DerivedField at 0xb0e4160>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'r'): <yt.fields.derived_field.DerivedField at 0xb35cf60>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'theta'): <yt.fields.derived_field.DerivedField at 0xb0e4080>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'z'): <yt.fields.derived_field.DerivedField at 0xb35cfd0>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ('index', 'zeros'): <yt.fields.derived_field.DerivedField at 0xb5562e8>}<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>--------------------end----------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>I found the universal field for ‘magz’ is 'magnetic_field_z', but none for ‘nele’. It seems the following work well<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>--------------------begin----------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>import yt<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>from yt import derived_field<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>from yt import units<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>@derived_field(name="nele", units="cm**-3", force_override=True)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>def _nele(field, data):<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Na = yt.physical_constants.Na<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Na_code = data.ds.quan(Na, 'code_length**3/cm**3/code_mass')<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> return data["flash","dens"]*data["flash","ye"]*Na_code<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>ds = yt.load('LLEMagnetizedJet2D_hdf5_plt_cnt_0000')<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>print ds.point([0,0,0])['magnetic_field_z']<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>print ds.point([0,0,0])['nele']<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>------------------end------------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>The output:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>--------------begin---------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>[ 0.] sqrt(g)/(sqrt(cm)*s)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>[ 3.00911334e+16] cm**(-3)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>---------------end---------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>I do not know if this is a good way.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Thank you,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Yingchao<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></a></p><span style='mso-bookmark:_MailEndCompose'></span><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Nathan Goldbaum [mailto:nathan12343@gmail.com] <br><b>Sent:</b> Friday, February 17, 2017 12:07 PM<br><b>To:</b> Discussion of the yt analysis package <yt-users@lists.spacepope.org>; yingchao.lu@rice.edu<br><b>Subject:</b> Re: [yt-users] override code units<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>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.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>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.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Finally, you can always convert to CGS:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><span style='font-size:11.0pt'>ds.point([0,0,0])['magz'].to('G')</span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><div><p class=MsoNormal>On Fri, Feb 17, 2017 at 11:55 AM Yingchao Lu <<a href="mailto:yingchao.lu@rice.edu">yingchao.lu@rice.edu</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>Hi All,</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>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 </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>---------------------------------------------------------------------</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>import yt</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>units_override = {"length_unit":(1.0,"cm"),</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> "time_unit":(1.0,"s"),</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> "mass_unit":(1.0,"g"),</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> 'nele_unit': (1.0, "cm**-3"),</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> "magnetic_unit":(1.0,"gauss")}</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>ds = yt.load('flash_hdf5_plt_cnt_0000', units_override=units_override)</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>print ds.point([0,0,0])['magz']</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>print ds.point([0,0,0])['nele']</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>---------------------------------------------------------------------</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>The output is:</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>---------------------------------------------------------------------</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>[ 0.] code_magnetic</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>[ 2.87595814e+15] code_length**(-3)</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>---------------------------------------------------------------------</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>How can I get:</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>---------------------------------------------------------------------</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>[ 0.] gauss</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>[ 2.87595814e+15] cm**(-3)</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>---------------------------------------------------------------------</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'> </span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>Thanks,</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=gmailmsg><span style='font-size:11.0pt'>Yingchao</span></span><o:p></o:p></p></div></div><p class=MsoNormal>_______________________________________________<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" target="_blank">http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org</a><o:p></o:p></p></blockquote></div></div></div></body></html>