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TolInverse - Target relative error for the iterative inverse transformation

Description:
This attribute controls the iterative inverse transformation used if the IterInverse attribute is non-zero.

Its value gives the target relative error in teh axis values of each transformed position. Further iterations will be performed until the target relative error is reached, or the maximum number of iterations given by attribute NiterInverse is reached.

The default value is 1.0E-6.

Type:
Floating point.
Class Applicability:
PolyMap
All PolyMaps have this attribute.


next up previous 264
Next: Top(axis) - Highest axis value to display
Up: AST Attribute Descriptions
Previous: Tol - Plotting tolerance

AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 211
R.F. Warren-Smith & D.S. Berry
7th December 2012
E-mail:starlink@jiscmail.ac.uk

Copyright (C) 2012 Science \& Technology Facilities Council