podpac.algorithm.UnaryAlgorithm

class podpac.algorithm.UnaryAlgorithm(**kwargs: Any)[source]

Bases: BaseAlgorithm

Base class for computation nodes that take a single source and transform it.

source

The source node

Notes

Developers of new Algorithm nodes need to implement the eval method.

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, attrs, ...])	Initialize an output data array
`eval`(coordinates, **kwargs)	Evaluate the node at the given coordinates.
`eval_group`(group)	Evaluate the node for each of the coordinates in the group.
`find_coordinates`()	Get the available coordinates for the inputs to the Node.
`from_name_params`(name[, params])	Create podpac Node from a WMS/WCS request.
`from_url`(url)	Create podpac Node from a WMS/WCS request.
`get_bounds`([crs])	Get the full available coordinate bounds for the Node.
`get_cache`(key[, coordinates])	Get cached data for this node.
`get_ui_spec`([help_as_html])	Get spec of node attributes for building a ui
`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.
`probe`([lat, lon, time, alt, crs])	Evaluates every part of a node / pipeline at a point and records which nodes are actively being used.
`put_cache`(data, key[, coordinates, expires, ...])	Cache data for this node.
`rem_cache`(key[, coordinates, mode])	Clear cached data for this node.
`save`(path)	Write node to file.
`trait_defaults`(names, *metadata)	Return a trait's default value or a dictionary of them
`trait_has_value`(name)	Returns True if the specified trait has a value.
`trait_is_defined`(name)
`trait_values`(**metadata)	A `dict` of trait names and their values.

Attributes

`attrs`	List of node attributes
`base_ref`	Default reference/name in node definitions
`cache_ctrl`	A trait whose value must be an instance of a specified class.
`cache_output`	A boolean (True, False) trait.
`definition`
`dtype`	An enum whose value must be in a given sequence.
`force_eval`	A boolean (True, False) trait.
`hash`
`inputs`
`json`	Definition for this node in JSON format.
`json_pretty`	Definition for this node in JSON format, with indentation suitable for display.
`output`	A trait for unicode strings.
`outputs`	An instance of a Python list.
`source`
`style`	A trait whose value must be an instance of a specified class.
`units`	A trait for unicode strings.