cfdm.Bounds


class cfdm.Bounds(properties=None, data=None, source=None, copy=True, _use_data=True)[source]

Bases: cfdm.mixin.netcdf.NetCDFVariable, cfdm.mixin.netcdf.NetCDFDimension, cfdm.mixin.propertiesdata.PropertiesData, cfdm.core.bounds.Bounds

A cell bounds component of a coordinate or domain ancillary construct of the CF data model.

An array of cell bounds spans the same domain axes as its coordinate array, with the addition of an extra dimension whose size is that of the number of vertices of each cell. This extra dimension does not correspond to a domain axis construct since it does not relate to an independent axis of the domain. Note that, for climatological time axes, the bounds are interpreted in a special way indicated by the cell method constructs.

In the CF data model, a bounds component does not have its own properties because they can not logically be different to those of the coordinate construct itself. However, it is sometimes desired to store attributes on a CF-netCDF bounds variable, so it is also allowed to provide properties to a bounds component.

NetCDF interface

The netCDF variable name of the bounds may be accessed with the nc_set_variable, nc_get_variable, nc_del_variable and nc_has_variable methods.

The name of the trailing netCDF dimension spanned by bounds (which does not correspond to a domain axis construct) may be accessed with the nc_set_dimension, nc_get_dimension, nc_del_dimension and nc_has_dimension methods.

New in version 1.7.0.

Initialization

Parameters
properties: dict, optional

Set descriptive properties. The dictionary keys are property names, with corresponding values. Ignored if the source parameter is set.

Properties may also be set after initialisation with the set_properties and set_property methods.

Parameter example:

properties={'standard_name': 'grid_latitude'}

data: Data, optional

Set the data. Ignored if the source parameter is set.

The data also may be set after initialisation with the set_data method.

source: optional

Initialize the properties and data from those of source.

copy: bool, optional

If False then do not deep copy input parameters prior to initialization. By default arguments are deep copied.

Inspection

Methods

dump

A full description of the bounds component.

identity

Return the canonical identity.

identities

Return all possible identities.

Properties

Methods

del_property

Remove a property.

get_property

Return a property.

has_property

Whether a property has been set.

set_property

Set a property.

properties

Return all properties.

clear_properties

Remove all properties.

set_properties

Set properties.

inherited_properties

Return the properties inherited from a coordinate construct.

Data

Methods

del_data

Remove the data.

get_data

Return the data.

has_data

Whether a data has been set.

set_data

Set the data.

insert_dimension

Expand the shape of the data array.

squeeze

Remove size one axes from the data array.

transpose

Permute the axes of the data array.

Attributes

data

Return the data.

Miscellaneous

Methods

copy

Return a deep copy.

equals

Whether two instances are the same.

uncompress

Uncompress the construct.

NetCDF

Methods

nc_del_variable

Remove the netCDF variable name.

nc_get_variable

Return the netCDF variable name.

nc_has_variable

Whether the netCDF variable name has been set.

nc_set_variable

Set the netCDF variable name.

nc_del_dimension

Remove the netCDF dimension name.

nc_get_dimension

Return the netCDF dimension name.

nc_has_dimension

Whether the netCDF dimension name has been set.

nc_set_dimension

Set the netCDF dimension name.

Special

Methods

__deepcopy__

Called by the copy.deepcopy function.

__getitem__

Return a subspace defined by indices

__repr__

Called by the repr built-in function.

__str__

Called by the str built-in function.