yt.frontends.ahf.fields module

AHF-specific fields

class yt.frontends.ahf.fields.AHFHalosFieldInfo(ds, field_list, slice_info=None)[source]

Bases: yt.fields.field_info_container.FieldInfoContainer

add_field(name, sampling_type, function=None, **kwargs)

Add a new field, along with supplemental metadata, to the list of available fields. This respects a number of arguments, all of which are passed on to the constructor for DerivedField.

Parameters:
  • name (str) – is the name of the field.
  • function (callable) – A function handle that defines the field. Should accept arguments (field, data)
  • units (str) – A plain text string encoding the unit. Powers must be in python syntax (** instead of ^). If set to “auto” the units will be inferred from the return value of the field function.
  • take_log (bool) – Describes whether the field should be logged
  • validators (list) – A list of FieldValidator objects
  • particle_type (bool) – Is this a particle (1D) field?
  • vector_field (bool) – Describes the dimensionality of the field. Currently unused.
  • display_name (str) – A name used in the plots
add_output_field(name, sampling_type, **kwargs)
alias(alias_name, original_name, units=None)
check_derived_fields(fields_to_check=None)
clear() → None. Remove all items from D.
copy() → a shallow copy of D
create_with_fallback(fallback, name='')
extra_union_fields = ()
fallback = None
find_dependencies(loaded)
fromkeys()

Returns a new dict with keys from iterable and values equal to value.

get(k[, d]) → D[k] if k in D, else d. d defaults to None.
has_key(key)
items() → a set-like object providing a view on D's items
keys()
known_other_fields = ()
known_particle_fields = (('ID', ('', ['particle_identifier'], None)), ('hostHalo', ('', [], None)), ('numSubStruct', ('', [], None)), ('Mvir', ('Msun/h', ['particle_mass'], 'Virial Mass')), ('npart', ('', [], None)), ('Xc', ('kpccm/h', ['particle_position_x'], None)), ('Yc', ('kpccm/h', ['particle_position_y'], None)), ('Zc', ('kpccm/h', ['particle_position_z'], None)), ('VXc', ('km/s', ['particle_velocity_x'], None)), ('VYc', ('km/s', ['particle_velocity_y'], None)), ('VZc', ('km/s', ['particle_velocity_z'], None)), ('Rvir', ('kpccm/h', ['virial_radius'], 'Virial Radius')), ('Rmax', ('kpccm/h', [], None)), ('r2', ('kpccm/h', [], None)), ('mbp_offset', ('kpccm/h', [], None)), ('com_offset', ('kpccm/h', [], None)), ('Vmax', ('km/s', [], None)), ('v_sec', ('km/s', [], None)), ('sigV', ('km/s', [], None)), ('lambda', ('', [], None)), ('lambdaE', ('', [], None)), ('Lx', ('', [], None)), ('Ly', ('', [], None)), ('Lz', ('', [], None)), ('b', ('', [], None)), ('c', ('', [], None)), ('Eax', ('', [], None)), ('Eay', ('', [], None)), ('Eaz', ('', [], None)), ('Ebx', ('', [], None)), ('Eby', ('', [], None)), ('Ebz', ('', [], None)), ('Ecx', ('', [], None)), ('Ecy', ('', [], None)), ('Ecz', ('', [], None)), ('ovdens', ('', [], None)), ('nbins', ('', [], None)), ('fMhires', ('', [], None)), ('Ekin', ('Msun/h*(km/s)**2', [], None)), ('Epot', ('Msun/h*(km/s)**2', [], None)), ('SurfP', ('Msun/h*(km/s)**2', [], None)), ('Phi0', ('(km/s)**2', [], None)), ('cNFW', ('', [], None)))
load_all_plugins(ftype='gas')
load_plugin(plugin_name, ftype='gas', skip_check=False)
pop(k[, d]) → v, remove specified key and return the corresponding value.

If key is not found, d is returned if given, otherwise KeyError is raised

popitem() → (k, v), remove and return some (key, value) pair as a

2-tuple; but raise KeyError if D is empty.

setdefault(k[, d]) → D.get(k,d), also set D[k]=d if k not in D
setup_extra_union_fields(ptype='all')
setup_fluid_aliases(ftype='gas')
setup_fluid_fields()
setup_fluid_index_fields()
setup_particle_fields(ptype, ftype='gas', num_neighbors=64)
setup_smoothed_fields(ptype, num_neighbors=64, ftype='gas')
update([E, ]**F) → None. Update D from dict/iterable E and F.

If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

values() → an object providing a view on D's values