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WcsAxis(lonlat) - FITS-WCS projection axes   

Description:
This attribute gives the indices of the longitude and latitude coordinates of the FITS-WCS projection within the coordinate space used by a WcsMap. These indices are defined when the WcsMap is first created using astWcsMap and cannot subsequently be altered.

If "lonlat" is 1, the index of the longitude axis is returned. Otherwise, if it is 2, the index of the latitude axis is returned.

Type:
Integer, read-only.

Class Applicability:
WcsMap
All WcsMaps have this attribute.



next up previous
Next: WcsType - FITS-WCS projection type
Up: AST Attribute Descriptions
Previous: Warnings - Controls the issuing of warnings about various conditions

AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 211
R.F. Warren-Smith & D.S. Berry
30th April 2003
E-mail:ussc@star.rl.ac.uk

Copyright (C) 2003 Central Laboratory of the Research Councils