podpac.data.WCS¶

class podpac.data.WCS(**kwargs)[source]¶

Bases: podpac.core.data.datasource.DataSource

Create a DataSource from an OGC-compliant WCS service

crs¶

Default is EPSG:4326 (WGS84 Geodic) EPSG number for the coordinate reference system that the data should be returned in.

Type: ‘str’

layer_name¶

Name of the WCS layer that should be fetched from the server

Type: str

source¶

URL of the WCS server endpoint

Type: str

version¶

Default is 1.0.0. WCS version string.

Type: str

wcs_coordinates¶

The coordinates of the WCS source

Type: podpac.Coordinates

Alternative Constructors

`from_definition`(definition)	Create podpac Node from a dictionary definition.
`from_json`(s)	Create podpac Node from a JSON definition.

Methods

`__init__`(**kwargs)	Do not overwrite me
`create_output_array`(coords[, data])	Initialize an output data array
`eval`(coordinates[, output])	Evaluates this node using the supplied coordinates.
`eval_group`(group)	Evaluate the node for each of the coordinates in the group.
`find_coordinates`()	Get the available coordinates for the Node.
`from_url`(url)	Create podpac Node from a WMS/WCS request.
`get_cache`(key[, coordinates])	Get cached data for this node.
`get_coordinates`()	Returns a Coordinates object that describes the coordinates of the data source.
`get_data`(coordinates, coordinates_index)	{get_data}
`has_cache`(key[, coordinates])	Check for cached data for this node.
`init`()	Overwrite this method if a node needs to do any additional initialization after the standard initialization.
`load`(path)	Create podpac Node from file.
`put_cache`(data, key[, coordinates, overwrite])	Cache data for this node.
`rem_cache`(key[, coordinates, mode])	Clear cached data for this node.
`save`(path)	Write node to file.
`set_coordinates`(coordinates[, force])	Set the coordinates.
`trait_is_defined`(name)

Attributes

`attrs`	List of node attributes
`base_ref`	definition base_ref
`boundary`	An instance of a Python dict.
`cache_coordinates`	A boolean (True, False) trait.
`cache_ctrl`	A trait whose value must be an instance of a specified class.
`cache_output`	A boolean (True, False) trait.
`capabilities_url`	Constructs the url that requests the WCS capabilities
`coordinate_index_type`	An enum whose value must be in a given sequence.
`coordinates`	{coordinates}
`crs`	A trait for unicode strings.
`definition`
`dtype`	A trait which allows any value.
`force_eval`	A boolean (True, False) trait.
`hash`
`interpolation`
`interpolation_class`	Get the interpolation class currently set for this data source.
`interpolators`	Return the interpolators selected for the previous node evaluation interpolation.
`json`
`json_pretty`
`layer_name`	A trait for unicode strings.
`nan_vals`	An instance of a Python list.
`output`	A trait for unicode strings.
`outputs`	An instance of a Python list.
`source`	A trait for unicode strings.
`style`	A trait whose value must be an instance of a specified class.
`units`	A trait for unicode strings.
`version`	A trait for unicode strings.
`wcs_coordinates`

Members

__init__(**kwargs)¶: Do not overwrite me

property base_ref¶: definition base_ref

property capabilities_url¶

Constructs the url that requests the WCS capabilities

Returns: The url that requests the WCS capabilities
Return type: str

crs: A trait for unicode strings.

get_coordinates()[source]¶

Returns a Coordinates object that describes the coordinates of the data source.

In most cases, this method is defined by the data source implementing the DataSource class. If method is not implemented by the data source, it will try to return self.coordinates if self.coordinates is not None.

Otherwise, this method will raise a NotImplementedError.

Returns: The coordinates describing the data source array.
Return type: podpac.Coordinates

Notes

Need to pay attention to: - the order of the dimensions - the stacking of the dimension - the type of coordinates

Coordinates should be non-nan and non-repeating for best compatibility

Notes

This is a little tricky and doesn’t fit into the usual PODPAC method, as the service is actually doing the data wrangling for us…

get_data(coordinates, coordinates_index)[source]¶

{get_data}

Raises: Exception – Raises this if there is a network error or required dependencies are not installed.

layer_name: A trait for unicode strings.

source: A trait for unicode strings.

version: A trait for unicode strings.

property wcs_coordinates