|
|||
NRAO Home > CASA > CASA Toolkit Reference Manual |
|
image.setcoordsys - Function
1.1.1 Set new Coordinate System
Description
This function replaces the coordinate system in the image. It is supported for
both float and complex valued images. Coordinate systems are manipulated
with the cs tool. The coordinate system can be recovered from an image via
the coordsys function.
Note that changing the cs tool has no effect on the original image, until it is replaced with this function; the value returned by coordsys() is a copy of, not a reference to, the image’s coordinate system.
Arguments
Inputs |
| ||
csys |
| Record describing new Coordinate System
| |
| allowed: | record |
|
| Default: |
|
|
bool
Example
"""
#
print "\t----\t setcoordsys Ex 1 \t----"
ia.fromshape(shape=[10,20]) # Make image
mycs = ia.coordsys(); # Recover Coordinate System
incr = mycs.increment(’n’); # Get increment as numeric vector
incrn = incr[’numeric’]
for i in range(len(incrn)):
incrn[i] = 2*incrn[i]
incr[’numeric’]=incrn
mycs.setincrement(value=incr); # Set new increment in Coordinate System
ia.setcoordsys(mycs.torecord()); # Set new Coordinate System in image
mycs.done()
ia.close()
#
"""
__________________________________________________________________
More information about CASA may be found at the
CASA web page
Copyright © 2016 Associated Universities Inc., Washington, D.C.
This code is available under the terms of the GNU General Public Lincense
Home |
Contact Us |
Directories |
Site Map |
Help |
Privacy Policy |
Search