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- The way POLBIN chooses the location of its bins
has been changed. The bins are now chosen so that origin of the (X,Y)
co-ordinate system (as defined by the X and Y columns in the input
catalogue), is always at the corner of a bin.
- The WCS information stored with the output cube created by
POLCAL now has three axes instead of two (the Stokes
axis is now described in addition to the two spatial axes).
- A new parameter called TRIMBAD has been added to POLCAL
to enable the output cube to be trimmed to exclude any borders of bad pixels.
- POLBIN and POLVEC can now
optionally add RA and DEC columns to their output catalogues, so long as
suitable WCS information is available. See the new parameter RADEC.
- The WCS FrameSet stored within catalogues by POLBIN
and POLVEC now include a GRID Frame describing the
grid co-ordinate system of the Stokes cube.
- POLPLOT now allows the key to be placed inside the
vector map by giving a negative value for the KEYPOS parameter. The text
included in the key can be specified using the Title attribute of
parameter KEYSTYLE.
- The default vector scaling used by POLPLOT has been
improved in cases where debiassing causes many zero length vectors to be
present.
Next: V2.0-14
Up: History
Previous: V2.1-7
POLPACK
Starlink User Note 223
D.S. Berry & T.M. Gledhill
26th February 2003
E-mail:ussc@star.rl.ac.uk
Copyright © 2008 Science and Technology Facilities Council