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[fitsbits] WCSLIB 3.3



 
 
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Old October 22nd 03, 10:24 AM
Mark Calabretta
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Default [fitsbits] WCSLIB 3.3


Greetings,

As presaged at the FITS BoF at ADASS, WCSLIB 3.3 is now available from
----------
http://www.atnf.csiro.au/~mcalabre

This release contains some fixes to WCSLIB 3.2 gleaned from usage in
aips++ but the main changes are primarily in PGSBOX. Change notes for
each are appended.

Mark Calabretta
ATNF





WCSLIB version 3.3 (2003/10/21)
-------------------------------

* In celset(), the default value for phi_p (LONPOLE) is

phi_p = phi_0 + ((delta_0 theta_0) ? 180.0 : 0.0)

Previously phi_0 (which is normally zero) was not added. Reported by
David Berry ).

* wcsprt() and linprt() now check that the structs have been initialized.

* In wcsini(), when the wcsprm flag is -1 also set the linprm flag to -1 to
force initialization of the memory managed by linset().

* wcsset() now explicitly initializes the celprm and spcprm structs via
celini() and spcini().

* Fixed syntax errors in the macro definitions of linrev_errmsg and
linfwd_errmsg.

* In Makefile, added the -ansi option to gcc to force it to behave like a
strict ANSI C compiler, specifically in setting the __STDC__ preprocessor
macro.





PGSBOX version 3.3 (2003/10/21)
-------------------------------

* PGSBOX now recognizes status returns -1, -2, and -3 from NLFUNC for opcodes
+2 and +1 which cause it to accept the returned (x,y) coordinates but not
consider them as one end of a crossing segment for labelling world
coordinate 1, 2, or both.

* PGSBOX now takes care not to lose vertical tick marks (and hence labels) at
the left or right edge of the frame. Likewise for horizontal tick marks at
the top or bottom edge of the frame.

* Tightened up the test in PGSBOX for cycles in angle to catch the case where
the coordinate value spans a full 360 degrees.

* PGSBOX will no longer accept frame crossings that are too oblique; floating
point rounding errors may cause grid lines that should otherwise track along
the frame to weave down it from side-to-side resulting in spurious crossing
points.

* Fixed a bug in pgwcsl_() for processing simple linear coordinates.

* pgwcsl_() now returns error -2 if the latitude is outside -90 to +90 for
opcodes +2 and +1.

* Amended the translation of status return codes from WCSLIB in pgwcsl_().

* Provided a header file for pgwcsl_() (mainly for C++ usage).

* Added extra test plots to PGTEST and cpgtest.

* Added extra functionality to the Makefile.


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