|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
[fitsbits] WCSLIB 4.4
Greetings, WCSLIB 4.4 is now available from http://www.atnf.csiro.au/~mcalabre. The main development in this release is a doxygen-generated programming manual which should make it easier to navigate the WCSLIB functions and data structures. See http://www.atnf.csiro.au/~mcalabre/W...lib/index.html A full list of changes is appended here. My thanks to all those who have provided feedback since v4.3 (2007/Dec). Mark Calabretta ATNF WCSLIB version 4.4 (2009/08/10) ------------------------------- * C library - Creation of WCSLIB user manual from the header file prologues using a special-purpose parser, doxextr, and sed scripts to generate input for doxygen. This required minor formatting changes to all prologues plus miscellaneous changes such as naming of arguments in function prototypes. - Bug fix in wcsset() that affected handling of PROJPn (deprecated) and PVi_ma attached to the longitude (not latitude) axis. Guard against long strings when copying the projection code. In wcs_types(), allow for early Paper IV distortion codes (e.g. "RA---TAN-SIP") when parsing CTYPEia. - Use sincos() whereever possible for a ~15% speedup (patches for cel.c, prj.c and sph.c supplied by Michael Droettboom). configure checks for, and uses it automatically if available. - Fixed the translation of GLS to SFL in wcsset() and celfix() when the reference longitude and latitude are non-zero. (In the AIPS convention, this simply translates the reference point, i.e. the map as a whole, to those coordinates without creating an oblique grid.) - Bug fix in prjoff(), a utility function used by the prj routines. It forces (x,y) = (0,0) at (phi_0,theta_0) when the latter are set by PVi_[012]a attached to the longitude (not latitude) axis. Rarely used in practice. - New utility function, sphdpa(), computes the distance and position angle from a point on the sphere to a set of field points. - In sphx2s() and sphx2s(), handle a simple change in origin of longitude using a short-cut calculation for speed and accuracy. Similarly in celset(), check whether phip == phi0 when computing latp and if so use a short-cut that ensures latp == 90.0 (exactly) if lat0 == theta0. The resulting spherical rotation then becomes a simple change in origin of longitude. In particular, these changes should assist PGSBOX in drawing grid lines of +/-180 longitude, to prevent flip-flopping between one and the other. - wcsbth() & wcspih(): resolved an inconsistency between the documentation and code by renamimg WCSHDR_VSOURCEa as WCSHDR_VSOURCE. - Flex code: moved declaration of helper functions out of global scope. - Fixed call to wcss2p() in twcshdr. * Fortran wrappers - New wrapper functions: - WCSBTH for wcsbth(), - WCSBDX for wcsbdx(), - CDFIX for cdfix(), - SPHDPA for sphdpa(). - Updated WCSLEN (in wcs.inc) and added WCS_COLAX and WCS_VELANGL to match changes to wcsprm made in v4.3 with corresponding changes to the wrapper functions. Likewise updated TABLEN (in tab.inc) for changes to tabprm, and added CEL_LATPREQ for celprm. - Struct lengths are now long enough to accomodate 64-bit machines. - Updated the flag bits for the RELAX argument in wcshdr.inc to reflect changes to wcshdr.h made in v4.3. Renamed WCSHDR_VSOURCEa to WCSHDR_VSOURCE for consistency with the C library. * PGSBOX - Improved grid labelling, particularly in minimizing the number of fields required in sexagesimal labels. * Utilities - New utility program: - wcsware extracts the WCS keywords for an image from the specified FITS file, constructs wcsprm structs for each coordinate representation found, and performs a variety of operations using them. - Old utility programs (first appeared in 4.3 but were not recorded): - HPXcvt reorganises HEALPix data into a 2-D FITS image with HPX coordinate system. - wcsgrid extracts the WCS keywords for an image from the specified FITS file and uses pgsbox() to plot a 2-D coordinate graticule for each alternate representation found. - fitshdr lists headers from a FITS file specified on the command line, or else on stdin, printing them as 80-character keyrecords without trailing blanks. * General - New configure options, --with-pgplotinc, --with-pgplotlib, --with-cfitsioinc and --with-cfitsiolib allow additional directories to be added to the library and include file search path. - Miscellaneous fixes and improvements to the installation process. - Generate a metadata file for pkg-config. - Added 'make MODE=interactive check' to run the test programs in interactive mode rather than batch. - Merged the separate CHANGES files for C, Fortran and PGSBOX into one (this), with a new section for utilities. WCSLIB version 4.3.3 (2009/04/30) --------------------------------- * C library - fitshdr.l, wcsbth.l, and wcspih.l: use setjmp/longjmp to preempt the call to exit() which is hard-coded in function yy_fatal_error() supplied by flex. - wcspih.l: if NAXIS is non-zero but there were no WCS keywords at all in the header then create a default WCS with blank alternate version. * Fortran wrappers - (No changes.) * PGSBOX - (No changes.) WCSLIB version 4.3.2 (2009/03/16) --------------------------------- * C library - utils/GNUmakefile: create BINDIR if necessary prior to installing utilities. * Fortran wrappers - (No changes.) * PGSBOX - (No changes.) WCSLIB version 4.3.1 (2008/09/08) --------------------------------- * C library - Top-level GNUmakefile: install header files. * Fortran wrappers - (No changes.) * PGSBOX - (No changes.) |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[fitsbits] WCSLIB 4.3 | Mark Calabretta | FITS | 0 | February 28th 08 01:49 AM |
[fitsbits] WCSLIB 4.2 | Mark Calabretta | FITS | 0 | September 23rd 05 06:44 AM |
[fitsbits] WCSLIB 4.1 | Mark Calabretta | FITS | 0 | August 31st 05 06:14 AM |
[fitsbits] WCSLIB 4.0 | Mark Calabretta | FITS | 0 | February 7th 05 12:46 AM |
[fitsbits] WCSLIB 3.3 | Mark Calabretta | FITS | 0 | October 22nd 03 10:24 AM |