1.1.4.0 imagepol.makecomplex

NRAO Home > CASA > CASA Toolkit Reference Manual

imagepol.makecomplex - Function

1.1.4 Make a Complex image

Description

This function generates a Complex image file from either a real and imaginary, or an amplitude and phase pair of images. If you give a linear position angle image for the phase, it will be multipled by two before the real and imaginary parts are formed.

Arguments


Inputs
complex	Output complex image file name. Must be specified.
	allowed:	string
	Default:
real	Input real image file name. Default is unset.
	allowed:	string
	Default:
imag	Input imaginary image file name. Default is unset.
	allowed:	string
	Default:
amp	Input amplitude image file name. Default is unset.
	allowed:	string
	Default:
phase	Input phase image file name. Default is unset.
	allowed:	string
	Default:

Returns
bool

Example

"""
#
print "\t----\t makecomplex Ex 1 \t----"
po.open(’stokes.image’)
po.complexlinpol(’qu.cplx1’)
q = po.stokesq()
u = po.stokesu()
q2 = q.subimage(’q’,overwrite=true)
u2 = u.subimage(’u’,overwrite=true)
po.makecomplex(’qu.cplx2’, real=’q’, imag=’u’)
po.close()
#
"""

In this example we make two complex linear polarization
images which should be identical.

__________________________________________________________________

[next] [prev] [prev-tail] [front] [up]

More information about CASA may be found at the CASA web page

This code is available under the terms of the GNU General Public Lincense