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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 AST_NORM. 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 210
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