uwacan.positional.Coordinates

class Coordinates(coordinates=None, /, latitude=None, longitude=None)

Bases: DatasetWrap

Container for latitude and longitude.

This class has a number of useful methods to perform computations on coordinates.

Parameters:

coordinatesxarray.Dataset

Dataset with at least “latitude” and “longitude”

latitudefloat

A latitude value to store.

longitudefloat

A longitude value to store.

Methods

bearing_to(other)	Calculate the bearing to another coordinate.
distance_to(other)	Calculate the distance to another coordinate.
local_length_scale()	How many nautical miles one longitude minute is.
make_figure([lat, lon, extent])	Create a plotly figure, styled for this data.
plot([use_minutes, include_time, name, ...])	Create a plotly trace for the coordinates.
shift_position(distance, bearing)	Shift this coordinate by a distance in a certain bearing.

Inherited methods

from_dataset(dataset, **kwargs)	Instantiate the class from a dataset.
groupby(group)
isel([indexers, drop, missing_dims, drop_allnan])	Select a subset of the data from the coordinate indices.
load(path[, lookup_class])	Load data from a Zarr file and optionally restore the original class.
save(path[, append_dim])	Save the data to a Zarr file at the specified path.
sel([indexers, method, tolerance, drop, ...])	Select a subset of the data from the coordinate labels.
where(cond[, other, drop])	Filter elements from this object according to a condition.

Attributes

attrs	Attributes stored in the data.
coordinates	The latitude and longitude for this coordinate, as Dataset.
coords	The coordinate (dimension) arrays for this data.
data	The contained data.
dims	The dimensions of this data.
latitude	The latitude for coordinate, as DataArray.
longitude	The longitude for coordinate, as DataArray.
sizes	Mapping from dimension names to lengths.