copy_transform

Context: transform

Synopsis

Copy the transform.

Syntax

copy_transform(transform)

Description

transform - input Transform object

The copy_transform command generates a complete copy of the provided transform.

Example

>>> import pycrates as pyc
>>> cr = pyc.read_file("evt2.fits")
>>> trans = cr.get_transform("MSC")
>>> t2 = pyc.copy_transform(trans)
>>> print(t2.print_parameter_list())

Name: CRPIX	Type: dmDOUBLE	Value: 4096.500000, 4096.500000	   	Desc: Reference Point Pixel Coordinates	Parent: MSC
Name: CRVAL	Type: dmDOUBLE	Value: 0.000000, 0.000000	   	Desc: Center Coordinate in decimal degrees	Parent: MSC
Name: CDELT	Type: dmDOUBLE	Value: 0.000137, 0.000137	   	Desc: Transform Scale in degrees/pixel	Parent: MSC
Name: CROTA	Type: dmDOUBLE	Value: 0.000000	   	Desc: Rotation Angle	Parent: MSC
Name: EQUINOX	Type: dmSHORT	Value: 2000	   	Desc: Equinox of Coordinates	Parent: MSC
Name: EPOCH	Type: dmDOUBLE	Value: 2000.000000	   	Desc: Epoch of Coordinates	Parent: MSC
Name: CTYPE	Type: dmCHAR	Value: LONG-TAN   , NPOL-TAN	   	Desc: Coordinate Projection Type	Parent: MSC

Copy the "MSC" transform from the file evt2.fits to "t2".

Changes in CIAO 4.4

The pytransform module is no longer included as part of pycrates, so you either have to import it directly by saying

chips> import pytransform

or, if you have loaded pycrates as a named module, use the instance it provides:

>>> import pycrates as pyc

and then you can use pyc.apply_transform.

Bugs

See the bug pages on the CIAO website for an up-to-date listing of known bugs.

Refer to the CIAO bug pages for an up-to-date listing of known issues.