1.1.1.0 image.coordsys

NRAO Home > CASA > CasaDocument

image.coordsys - Function

1.1.1 Get the Coordinate System of the image
Description

This function stores the Coordinate System of an image in a Coordsys tool.

By default, the Coordinate System describes all of the axes in the image. If you desire, you can select a subset of the axes, thus reducing the dimensionality of the Coordinate System. This may be useful if you are supplying a Coordinate System to the functions fromarray or fromshape.

Arguments


Inputs
axes	Axes to which the Coordinate System pertains. Default is all axes.
	allowed:	intArray
	Default:	-1

Returns
casacoordsys

Example

"""
#
print "\t----\t coordsys Ex 1 \t----"
ia.maketestimage(’hcn’,overwrite=true)
ia.summary()
mycs = ia.coordsys([0,1])
imshape = ia.shape()
ia.fromshape(outfile=’test’, shape=imshape, csys=mycs.torecord(), overwrite=true)
ia.summary()
mycs.done()
ia.close()
#
"""

In this example, we create a Coordinate System pertaining to the first two axes of the image and then we create a new (empty) 2D image with this Coordinate System using the fromshape function.

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

Please send any comments or questions about CASA or AIPS++ to aips2-requests@nrao.edu

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