yt.frontends.gadget_fof.fields module

class yt.frontends.gadget_fof.fields.GadgetFOFFieldInfo(ds, field_list: list[tuple[str, str]], slice_info=None)[source]

Bases: FieldInfoContainer

add_deprecated_field(name, function, sampling_type, since, removal=None, ret_name=None, **kwargs)

Add a new field which is deprecated, 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)

  • sampling_type (str) – “cell” or “particle” or “local”

  • since (str) – The version string marking when this field was deprecated.

  • removal (str) – The version string marking when this field will be removed.

  • ret_name (str) – The name of the field which will actually be returned, used only by alias().

  • 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

  • vector_field (bool) – Describes the dimensionality of the field. Currently unused.

  • display_name (str) – A name used in the plots

add_field(name: tuple[str, str], function: Callable, sampling_type: str, *, alias: DerivedField | None = None, force_override: bool = False, **kwargs) → None

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 (tuple[str, str]) – field (or particle) type, field name

  • function (callable) – A function handle that defines the field. Should accept arguments (field, data)

  • sampling_type (str) – “cell” or “particle” or “local”

  • force_override (bool) – If False (default), an error will be raised if a field of the same name already exists.

  • alias (DerivedField (optional):) – existing field to be aliased

  • 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

  • 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: tuple[str, str], original_name: tuple[str, str], units: str | None = None, deprecate: tuple[str, str | None] | None = None)

Alias one field to another field.

Parameters:

  • alias_name (tuple[str, str]) – The new field name.

  • original_name (tuple[str, str]) – The field to be aliased.

  • 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.

  • deprecate (tuple[str, str | None] | None) – If this is set, then the tuple contains two string version numbers: the first marking the version when the field was deprecated, and the second marking when the field will be removed.

check_derived_fields(fields_to_check=None)
clear() → None.  Remove all items from D.
copy()
classmethod create_with_fallback(fallback, name='')
property curvilinear: bool
extra_union_fields: tuple[FieldKey, ...] = (('code_length', 'particle_position_x'), ('code_length', 'particle_position_y'), ('code_length', 'particle_position_z'), ('code_velocity', 'particle_velocity_x'), ('code_velocity', 'particle_velocity_y'), ('code_velocity', 'particle_velocity_z'), ('code_mass', 'particle_mass'), ('', 'particle_number'), ('', 'particle_ones'))
fallback = None
find_dependencies(loaded)
classmethod fromkeys(iterable, value=None)
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() → a set-like object providing a view on D's keys
known_other_fields: KnownFieldsT = ()
known_particle_fields: KnownFieldsT = (('GroupPos_0', ('code_length', ['Group', 'particle_position_x'], None)), ('GroupPos_1', ('code_length', ['Group', 'particle_position_y'], None)), ('GroupPos_2', ('code_length', ['Group', 'particle_position_z'], None)), ('GroupVel_0', ('code_velocity', ['Group', 'particle_velocity_x'], None)), ('GroupVel_1', ('code_velocity', ['Group', 'particle_velocity_y'], None)), ('GroupVel_2', ('code_velocity', ['Group', 'particle_velocity_z'], None)), ('GroupMass', ('code_mass', ['Group', 'particle_mass'], None)), ('GroupLen', ('', ['Group', 'particle_number'], None)), ('GroupNsubs', ('', ['Group', 'subhalo_number'], None)), ('GroupFirstSub', ('', [], None)), ('Group_M_Crit200', ('code_mass', [], None)), ('Group_M_Crit500', ('code_mass', [], None)), ('Group_M_Mean200', ('code_mass', [], None)), ('Group_M_TopHat200', ('code_mass', [], None)), ('Group_R_Crit200', ('code_length', [], None)), ('Group_R_Crit500', ('code_length', [], None)), ('Group_R_Mean200', ('code_length', [], None)), ('Group_R_TopHat200', ('code_length', [], None)), ('SubhaloPos_0', ('code_length', ['Subhalo', 'particle_position_x'], None)), ('SubhaloPos_1', ('code_length', ['Subhalo', 'particle_position_y'], None)), ('SubhaloPos_2', ('code_length', ['Subhalo', 'particle_position_z'], None)), ('SubhaloVel_0', ('code_velocity', ['Subhalo', 'particle_velocity_x'], None)), ('SubhaloVel_1', ('code_velocity', ['Subhalo', 'particle_velocity_y'], None)), ('SubhaloVel_2', ('code_velocity', ['Subhalo', 'particle_velocity_z'], None)), ('SubhaloMass', ('code_mass', ['Subhalo', 'particle_mass'], None)), ('SubhaloLen', ('', ['Subhalo', 'particle_number'], None)), ('SubhaloCM_0', ('code_length', ['Subhalo', 'center_of_mass_x'], None)), ('SubhaloCM_1', ('code_length', ['Subhalo', 'center_of_mass_y'], None)), ('SubhaloCM_2', ('code_length', ['Subhalo', 'center_of_mass_z'], None)), ('SubhaloSpin_0', ('', ['Subhalo', 'spin_x'], None)), ('SubhaloSpin_1', ('', ['Subhalo', 'spin_y'], None)), ('SubhaloSpin_2', ('', ['Subhalo', 'spin_z'], None)), ('SubhaloGrNr', ('', ['Subhalo', 'group_identifier'], None)), ('SubhaloHalfmassRad', ('code_length', [], None)), ('SubhaloIDMostbound', ('', [], None)), ('SubhaloMassInHalfRad', ('code_mass', [], None)), ('SubhaloMassInMaxRad', ('code_mass', [], None)), ('SubhaloMassInRad', ('code_mass', [], None)), ('SubhaloParent', ('', [], None)), ('SubhaloVelDisp', ('code_velocity', ['Subhalo', 'velocity_dispersion'], None)), ('SubhaloVmax', ('code_velocity', [], None)), ('SubhaloVmaxRad', ('code_length', [], None)), ('GroupMassType_0', ('code_mass', [], None)), ('SubhaloMassType_0', ('code_mass', [], None)), ('GroupLenType_0', ('code_length', [], None)), ('SubhaloLenType_0', ('code_length', [], None)), ('GroupMassType_1', ('code_mass', [], None)), ('SubhaloMassType_1', ('code_mass', [], None)), ('GroupLenType_1', ('code_length', [], None)), ('SubhaloLenType_1', ('code_length', [], None)), ('GroupMassType_2', ('code_mass', [], None)), ('SubhaloMassType_2', ('code_mass', [], None)), ('GroupLenType_2', ('code_length', [], None)), ('SubhaloLenType_2', ('code_length', [], None)), ('GroupMassType_3', ('code_mass', [], None)), ('SubhaloMassType_3', ('code_mass', [], None)), ('GroupLenType_3', ('code_length', [], None)), ('SubhaloLenType_3', ('code_length', [], None)), ('GroupMassType_4', ('code_mass', [], None)), ('SubhaloMassType_4', ('code_mass', [], None)), ('GroupLenType_4', ('code_length', [], None)), ('SubhaloLenType_4', ('code_length', [], None)), ('GroupMassType_5', ('code_mass', [], None)), ('SubhaloMassType_5', ('code_mass', [], None)), ('GroupLenType_5', ('code_length', [], None)), ('SubhaloLenType_5', ('code_length', [], None)), ('SubhaloHalfmassRadType_0', ('code_length', [], None)), ('SubhaloMassInHalfRadType_0', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_0', ('code_mass', [], None)), ('SubhaloMassInRadType_0', ('code_mass', [], None)), ('SubhaloHalfmassRadType_1', ('code_length', [], None)), ('SubhaloMassInHalfRadType_1', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_1', ('code_mass', [], None)), ('SubhaloMassInRadType_1', ('code_mass', [], None)), ('SubhaloHalfmassRadType_2', ('code_length', [], None)), ('SubhaloMassInHalfRadType_2', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_2', ('code_mass', [], None)), ('SubhaloMassInRadType_2', ('code_mass', [], None)), ('SubhaloHalfmassRadType_3', ('code_length', [], None)), ('SubhaloMassInHalfRadType_3', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_3', ('code_mass', [], None)), ('SubhaloMassInRadType_3', ('code_mass', [], None)), ('SubhaloHalfmassRadType_4', ('code_length', [], None)), ('SubhaloMassInHalfRadType_4', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_4', ('code_mass', [], None)), ('SubhaloMassInRadType_4', ('code_mass', [], None)), ('SubhaloHalfmassRadType_5', ('code_length', [], None)), ('SubhaloMassInHalfRadType_5', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_5', ('code_mass', [], None)), ('SubhaloMassInRadType_5', ('code_mass', [], None)))
load_all_plugins(ftype: str | None = 'gas') → None
load_plugin(plugin_name: str, ftype: str = 'gas', skip_check: bool = 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: str = 'gas') → None
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 mapping/iterable E and F.

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

values() → an object providing a view on D's values
class yt.frontends.gadget_fof.fields.GadgetFOFHaloFieldInfo(ds, field_list: list[tuple[str, str]], slice_info=None)[source]

Bases: FieldInfoContainer

add_deprecated_field(name, function, sampling_type, since, removal=None, ret_name=None, **kwargs)

Add a new field which is deprecated, 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)

  • sampling_type (str) – “cell” or “particle” or “local”

  • since (str) – The version string marking when this field was deprecated.

  • removal (str) – The version string marking when this field will be removed.

  • ret_name (str) – The name of the field which will actually be returned, used only by alias().

  • 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

  • vector_field (bool) – Describes the dimensionality of the field. Currently unused.

  • display_name (str) – A name used in the plots

add_field(name: tuple[str, str], function: Callable, sampling_type: str, *, alias: DerivedField | None = None, force_override: bool = False, **kwargs) → None

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 (tuple[str, str]) – field (or particle) type, field name

  • function (callable) – A function handle that defines the field. Should accept arguments (field, data)

  • sampling_type (str) – “cell” or “particle” or “local”

  • force_override (bool) – If False (default), an error will be raised if a field of the same name already exists.

  • alias (DerivedField (optional):) – existing field to be aliased

  • 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

  • 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: tuple[str, str], original_name: tuple[str, str], units: str | None = None, deprecate: tuple[str, str | None] | None = None)

Alias one field to another field.

Parameters:

  • alias_name (tuple[str, str]) – The new field name.

  • original_name (tuple[str, str]) – The field to be aliased.

  • 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.

  • deprecate (tuple[str, str | None] | None) – If this is set, then the tuple contains two string version numbers: the first marking the version when the field was deprecated, and the second marking when the field will be removed.

check_derived_fields(fields_to_check=None)
clear() → None.  Remove all items from D.
copy()
classmethod create_with_fallback(fallback, name='')
property curvilinear: bool
extra_union_fields: tuple[FieldKey, ...] = ()
fallback = None
find_dependencies(loaded)
classmethod fromkeys(iterable, value=None)
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() → a set-like object providing a view on D's keys
known_other_fields: KnownFieldsT = ()
known_particle_fields: KnownFieldsT = (('GroupPos_0', ('code_length', ['Group', 'particle_position_x'], None)), ('GroupPos_1', ('code_length', ['Group', 'particle_position_y'], None)), ('GroupPos_2', ('code_length', ['Group', 'particle_position_z'], None)), ('GroupVel_0', ('code_velocity', ['Group', 'particle_velocity_x'], None)), ('GroupVel_1', ('code_velocity', ['Group', 'particle_velocity_y'], None)), ('GroupVel_2', ('code_velocity', ['Group', 'particle_velocity_z'], None)), ('GroupMass', ('code_mass', ['Group', 'particle_mass'], None)), ('GroupLen', ('', ['Group', 'particle_number'], None)), ('GroupNsubs', ('', ['Group', 'subhalo_number'], None)), ('GroupFirstSub', ('', [], None)), ('Group_M_Crit200', ('code_mass', [], None)), ('Group_M_Crit500', ('code_mass', [], None)), ('Group_M_Mean200', ('code_mass', [], None)), ('Group_M_TopHat200', ('code_mass', [], None)), ('Group_R_Crit200', ('code_length', [], None)), ('Group_R_Crit500', ('code_length', [], None)), ('Group_R_Mean200', ('code_length', [], None)), ('Group_R_TopHat200', ('code_length', [], None)), ('SubhaloPos_0', ('code_length', ['Subhalo', 'particle_position_x'], None)), ('SubhaloPos_1', ('code_length', ['Subhalo', 'particle_position_y'], None)), ('SubhaloPos_2', ('code_length', ['Subhalo', 'particle_position_z'], None)), ('SubhaloVel_0', ('code_velocity', ['Subhalo', 'particle_velocity_x'], None)), ('SubhaloVel_1', ('code_velocity', ['Subhalo', 'particle_velocity_y'], None)), ('SubhaloVel_2', ('code_velocity', ['Subhalo', 'particle_velocity_z'], None)), ('SubhaloMass', ('code_mass', ['Subhalo', 'particle_mass'], None)), ('SubhaloLen', ('', ['Subhalo', 'particle_number'], None)), ('SubhaloCM_0', ('code_length', ['Subhalo', 'center_of_mass_x'], None)), ('SubhaloCM_1', ('code_length', ['Subhalo', 'center_of_mass_y'], None)), ('SubhaloCM_2', ('code_length', ['Subhalo', 'center_of_mass_z'], None)), ('SubhaloSpin_0', ('', ['Subhalo', 'spin_x'], None)), ('SubhaloSpin_1', ('', ['Subhalo', 'spin_y'], None)), ('SubhaloSpin_2', ('', ['Subhalo', 'spin_z'], None)), ('SubhaloGrNr', ('', ['Subhalo', 'group_identifier'], None)), ('SubhaloHalfmassRad', ('code_length', [], None)), ('SubhaloIDMostbound', ('', [], None)), ('SubhaloMassInHalfRad', ('code_mass', [], None)), ('SubhaloMassInMaxRad', ('code_mass', [], None)), ('SubhaloMassInRad', ('code_mass', [], None)), ('SubhaloParent', ('', [], None)), ('SubhaloVelDisp', ('code_velocity', ['Subhalo', 'velocity_dispersion'], None)), ('SubhaloVmax', ('code_velocity', [], None)), ('SubhaloVmaxRad', ('code_length', [], None)), ('GroupMassType_0', ('code_mass', [], None)), ('SubhaloMassType_0', ('code_mass', [], None)), ('GroupLenType_0', ('code_length', [], None)), ('SubhaloLenType_0', ('code_length', [], None)), ('GroupMassType_1', ('code_mass', [], None)), ('SubhaloMassType_1', ('code_mass', [], None)), ('GroupLenType_1', ('code_length', [], None)), ('SubhaloLenType_1', ('code_length', [], None)), ('GroupMassType_2', ('code_mass', [], None)), ('SubhaloMassType_2', ('code_mass', [], None)), ('GroupLenType_2', ('code_length', [], None)), ('SubhaloLenType_2', ('code_length', [], None)), ('GroupMassType_3', ('code_mass', [], None)), ('SubhaloMassType_3', ('code_mass', [], None)), ('GroupLenType_3', ('code_length', [], None)), ('SubhaloLenType_3', ('code_length', [], None)), ('GroupMassType_4', ('code_mass', [], None)), ('SubhaloMassType_4', ('code_mass', [], None)), ('GroupLenType_4', ('code_length', [], None)), ('SubhaloLenType_4', ('code_length', [], None)), ('GroupMassType_5', ('code_mass', [], None)), ('SubhaloMassType_5', ('code_mass', [], None)), ('GroupLenType_5', ('code_length', [], None)), ('SubhaloLenType_5', ('code_length', [], None)), ('SubhaloHalfmassRadType_0', ('code_length', [], None)), ('SubhaloMassInHalfRadType_0', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_0', ('code_mass', [], None)), ('SubhaloMassInRadType_0', ('code_mass', [], None)), ('SubhaloHalfmassRadType_1', ('code_length', [], None)), ('SubhaloMassInHalfRadType_1', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_1', ('code_mass', [], None)), ('SubhaloMassInRadType_1', ('code_mass', [], None)), ('SubhaloHalfmassRadType_2', ('code_length', [], None)), ('SubhaloMassInHalfRadType_2', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_2', ('code_mass', [], None)), ('SubhaloMassInRadType_2', ('code_mass', [], None)), ('SubhaloHalfmassRadType_3', ('code_length', [], None)), ('SubhaloMassInHalfRadType_3', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_3', ('code_mass', [], None)), ('SubhaloMassInRadType_3', ('code_mass', [], None)), ('SubhaloHalfmassRadType_4', ('code_length', [], None)), ('SubhaloMassInHalfRadType_4', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_4', ('code_mass', [], None)), ('SubhaloMassInRadType_4', ('code_mass', [], None)), ('SubhaloHalfmassRadType_5', ('code_length', [], None)), ('SubhaloMassInHalfRadType_5', ('code_mass', [], None)), ('SubhaloMassInMaxRadType_5', ('code_mass', [], None)), ('SubhaloMassInRadType_5', ('code_mass', [], None)), ('ID', ('', ['member_ids'], None)))
load_all_plugins(ftype: str | None = 'gas') → None
load_plugin(plugin_name: str, ftype: str = 'gas', skip_check: bool = 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: str = 'gas') → None
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 mapping/iterable E and F.

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

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