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NegLon - Display negative longitude values?   

Description:
This attribute is a boolean value which controls how longitude values are normalized for display by astNorm. If the NegLon attribute is zero (the default), then normalized longitude values will be in the range zero to 2.pi. If NegLon is non-zero, then normalized longitude values will be in the range -pi to pi.

Type:
Integer (boolean).

Class Applicability:
SkyFrame
All SkyFrames have this attribute.



next up previous
Next: Nframe - Number of Frames in a FrameSet
Up: AST Attribute Descriptions
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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