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The following describes the most significant changes which
occurred in the AST library between versions V5.2 and V5.3:
- The details of how a Frame is aligned with another Frame by the
astFindFrame and astConvert
functions have been changed. The changes mean that a Frame can now be
aligned with an instance of a sub-class of Frame, so long as the number
of axes and the Domain values are consistent. For instance, a basic
2-dimensional Frame with Domain ``SKY'' will now align succesfully with
a SkyFrame, conversion between the two Frames being achieved using a
UnitMap.
- The arrays that supply input values for astMapPut1<X> are now
declared ``const''.
- Added method
astMatchAxes
to the Frame class. This method allows corresponding axes within two
Frames to be identified.
- The
astAddFrame
method can now be used to append one or more axes to all Frames in a FrameSet.
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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
24th May 2011
E-mail:ussc@star.rl.ac.uk
Copyright (C) 2009 Science \& Technology Facilities Council