EarthLocationAttribute¶
- class astropy.coordinates.EarthLocationAttribute(default=None, secondary_attribute='')[source]¶
Bases:
Attribute
A frame attribute that can act as a
EarthLocation
. It can be created as anything that can be transformed to theITRS
frame, but always presents as anEarthLocation
when accessed after creation.- Parameters:
- default
object
Default value for the attribute if not provided
- secondary_attribute
python:str
Name of a secondary instance attribute which supplies the value if
default is None
and no value was supplied during initialization.
- default
Methods Summary
convert_input
(value)Checks that the input is a Quantity with the necessary units (or the special value
0
).Methods Documentation
- convert_input(value)[source]¶
Checks that the input is a Quantity with the necessary units (or the special value
0
).- Parameters:
- value
object
Input value to be converted.
- value
- Returns:
- out, convertedcorrectly-typed
object
, bool Tuple consisting of the correctly-typed object and a boolean which indicates if conversion was actually performed.
- out, convertedcorrectly-typed
- Raises:
ValueError
If the input is not valid for this attribute.