[yt-users] Runtime Error: unitsystem cgs unrecognized

[John ZuHone]

Hi Patrick,

How old is your file, by chance? FLASH3? FLASH2?

Also, if you don't mind, can you paste the script somewhere too?

Thanks,

John Z

On Nov 15, 2012, at 3:41 PM, Patrick Rieser wrote:

> Hey all!
> 
> When I try to call my own added field magB I get a runtime error saying that the cgs unitsystem is
> unrecognized. When I insert pf["unitsystem"] == "cgs" directly before the call where the traceback
> starts, it returns true.
> 
> 
> Best wishes,
> Patrick
> 
> 
> 
> I add the field with:
> 
> def _magB(field,data):
>    return (na.sqrt(data["Bx"]**2 + data["By"]**2 + data["Bz"]**2))
> add_field("magB", function=_magB, units=r"\rm{Gauss}")
> 
> and then call:
> 
> rad_profile.add_fields("magB")
> 
> Traceback:
> 
>  File "rad_profile_magb.py", line 100, in <module>
>    rad_profile.add_fields("magB")
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/profiles.py", line 170, in add_fields
>    self._unlazy_add_fields(fields, weight, accumulation)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/profiles.py", line 151, in _unlazy_add_fields
>    accumulation, self._args, check_cut = False)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/profiles.py", line 55, in save_state
>    tr = func(*args, **kwargs)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/profiles.py", line 264, in _bin_field
>    source_data = self._get_field(source, field, check_cut)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/profiles.py", line 204, in _get_field
>    data.append(source[field][pointI].ravel().astype('float64'))
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 328, in __getitem__
>    self.get_data(key)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 2593, in get_data
>    if self._generate_field(field):
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 358, in _generate_field
>    self[field] = self.pf.field_info[field](self)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/field_info_container.py", line 378, in __call__
>    dd = self._function(self, data)
>  File "/home/patrick/Auswertung/yt-bit/Plot/common_fields.py", line 7, in _magB
>    return (na.sqrt(data["Bx"]**2 + data["By"]**2 + data["Bz"]**2))
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 328, in __getitem__
>    self.get_data(key)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 2593, in get_data
>    if self._generate_field(field):
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 358, in _generate_field
>    self[field] = self.pf.field_info[field](self)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/data_objects/field_info_container.py", line 378, in __call__
>    dd = self._function(self, data)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/frontends/flash/fields.py", line 357, in _Bx
>    factor = GetMagRescalingFactor(data.pf)
>  File "/home/patrick/Programme/yt-x86_64/src/yt-hg/yt/frontends/flash/fields.py", line 353, in GetMagRescalingFactor
>    "value %s is unrecognized" % pf['unitsystem'])
> RuntimeError: Runtime parameter unitsystem withvalue cgs is unrecognized
> 
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