nraonrao
 
NRAO Home > CASA > CasaRef
measures.asbaseline - Function

1.3.1 define a baseline from a position measure
Description

asbaseline converts a position measure into a baseline measure. No actual baseline is calculated, since operations can be done on positions, with subtractions to obtain baselines at a later stage.

Arguments





Inputs

pos

position measure

allowed:

any

Default:

record

Returns
anyrecord

Example

print "\t----\t asbaseline Ex 1 \t----"  
b = me.position(’itrf’, ’10m’, ’20m’, ’30m’);  
print b  
#{’m0’: {’value’: 1.1071487177940904, ’unit’: ’rad’},  
# ’m1’: {’value’: 0.93027401411547195, ’unit’: ’rad’},  
# ’m2’: {’value’: 37.416573867739416, ’unit’: ’m’},  
# ’refer’: ’ITRF’,  
# ’type’: ’position’}  
print me.asbaseline(b)  
#{’m0’: {’value’: 1.1071487177940904, ’unit’: ’rad’},  
# ’m1’: {’value’: 0.93027401411547195, ’unit’: ’rad’},  
# ’m2’: {’value’: 37.416573867739416, ’unit’: ’m’},  
# ’refer’: ’J2000’,  
# ’type’: ’baseline’}

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

Copyright © 2008 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

Updated daily during alpha development.