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GrismAlpha
-
The angle of incidence of the incoming light on the grating surface
- Description:
- This attribute holds the angle between the incoming light and the
normal to the grating surface, in radians. The default value is 0.
- Type:
- Double precision.
- Class Applicability:
-
GrismMap
-
All GrismMaps have this attribute.
Next: GrismEps - The angle between the normal and the dispersion plane
Up: AST Attribute Descriptions
Previous: Grid - Draw grid lines for a Plot?
AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 211
R.F. Warren-Smith & D.S. Berry
24th May 2011
E-mail:ussc@star.rl.ac.uk
Copyright (C) 2009 Science \& Technology Facilities Council