[yt-users] override code units

[Nathan Goldbaum]

Hi,

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.

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.

Finally, you can always convert to CGS:

ds.point([0,0,0])['magz'].to('G')

On Fri, Feb 17, 2017 at 11:55 AM Yingchao Lu <yingchao.lu at rice.edu> wrote:

> Hi All,
>
>
>
> 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
>
>
>
> ---------------------------------------------------------------------
>
> import yt
>
> units_override = {"length_unit":(1.0,"cm"),
>
>                   "time_unit":(1.0,"s"),
>
>                   "mass_unit":(1.0,"g"),
>
>                   'nele_unit': (1.0, "cm**-3"),
>
>                  "magnetic_unit":(1.0,"gauss")}
>
> ds = yt.load('flash_hdf5_plt_cnt_0000', units_override=units_override)
>
> print ds.point([0,0,0])['magz']
>
> print ds.point([0,0,0])['nele']
>
> ---------------------------------------------------------------------
>
>
>
>
>
> The output is:
>
> ---------------------------------------------------------------------
>
> [ 0.] code_magnetic
>
> [  2.87595814e+15] code_length**(-3)
>
> ---------------------------------------------------------------------
>
>
>
> How can I get:
>
> ---------------------------------------------------------------------
>
> [ 0.] gauss
>
> [  2.87595814e+15] cm**(-3)
>
> ---------------------------------------------------------------------
>
>
>
>
>
> Thanks,
>
> Yingchao
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>
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