| WCSLIB version 6.2 (2018/10/20) |
| |
|
|
| * C library |
|
|
| - Consequent on the change in release 6.1, reapplied soothing balm to |
| the wtbarr struct definition in wcs.h for C++ compilation (C and |
| Fortran compilation being unaffected). While the object libraries |
| themselves are unchanged, the modified wcs.h must be installed for |
| compiling C++ applications. Reported by Corentin Schreiber. |
|
|
| * User manual |
|
|
| - Fixed minor formatting problems with the doxygen manual generation. |
|
|
|
|
| WCSLIB version 6.1 (2018/10/19) |
| |
|
|
| * C library |
|
|
| - Added support for time-related WCS keywords (Paper VII) by expanding |
| the wcsprm struct to store them as auxiliary values, now filled by |
| the header parsers, wcspih() and wcsbth() and handled routinely by |
| wcsinit(), wcssub(), wcscompare(), wcsfree(), wcsprt(), wcsset(), |
| and wcshdo(). |
|
|
| - Augmented datfix() to do various consistency checks on the new |
| time-related keyvalues, and added a new routine, obsfix(), to check |
| consistency of the OBSGEO-[XYZLBH] observatory coordinates. |
|
|
| - In the usage notes for wcsbth(), clarified that, according to WCS |
| Papers III and VII, certain global image header keywords are |
| permitted in binary table headers and are expected to be inherited |
| by image arrays and pixel lists, and elaborated on the difficulties |
| that such inheritance may cause for pixel lists. |
|
|
| - Revamped message string handling in the wcserr module to allow |
| arbitrarily long messages while greatly reducing the sizeof the |
| struct. |
|
|
| - Extracted the definition of the wtbarr struct from wcs.h to a |
| separate header file, wtbarr.h, in order to reduce the number of |
| irrelevant warnings generated by 'gcc -Wpadded' (primarily for |
| code development). Applications code that needs to access members |
| of the struct (unlikely) must now include wtbarr.h (or wcslib.h). |
|
|
| - The WCSLIB major version number was incremented as changes to the |
| wcsprm struct makes the ABI of the sharable library incompatible |
| with executables linked with that of older releases. |
|
|
| * Installation |
|
|
| - Several changes to configure and the makefiles aimed at facilitating |
| code development. |
|
|
| * Fortran wrappers |
|
|
| - Match changes to the C library, including adding a wrapper for |
| obsfix(). |
|
|
|
|
| WCSLIB version 5.20 (2018/10/05) |
| |
|
|
| * C library |
|
|
| - Added utility functions dpkeyi() and dpkeyd() to dis.c, and removed |
| the corresponding functions from wcsutil.c. |
|
|
| * Installation |
|
|
| - Reworked the makefiles to allow parallel library builds, as required |
| by some software distributions. Reported by Dustin Lang with |
| suggested patch, and Zaak Beekman. (Parallel execution of the test |
| suite is not supported.) |
|
|
| - The introduction of "deterministic" archiving (ar(1)) broke |
| dependency analysis in the WCSLIB makefiles on the many systems |
| where it is now enabled by default (i.e. binutils configured with |
| |
|
|
| Modified configure to force non-deterministic archiving during the |
| library builds, thus repairing the dependency analysis. However, |
| the static object libraries are now reconstructed using |
| deterministic archiving in the process of installing them. |
|
|
| - Fixed problems with the dependency analysis, solely affecting code |
| development. |
|
|
| * Fortran wrappers |
|
|
| - New wrappers for dpkeyi() and dpkeyd(). |
|
|
|
|
| WCSLIB version 5.19.1 (2018/07/28) |
| |
|
|
| * Installation |
|
|
| - Updated ./config/config.{guess,sub} to the latest versions from the |
| GIT repository, timestamped 2018-07-18 and 2018-07-25, respectively. |
| The previous pair were dated 2012-02-10 and 2012-04-18. |
|
|
|
|
| WCSLIB version 5.19 (2018/07/27) |
| |
|
|
| * C library |
|
|
| - In wcssub(), fixed a bug in handling distortion functions on axes |
| with changed axis number in the subimage (i.e. via deletion or |
| addition of an axis). |
|
|
| - In various routines within dis.c, wcs.c, wcshdr.c, and wcspih.l, |
| increased the size of various sprintf() output buffers to avert |
| -Wformat-overflow warnings from gcc 8.1.0 (with -DFORTIFY_SOURCE=2). |
| Reported by Simon Conseil. |
|
|
| Also fixed other warnings in these routines from gcc 8.1.0 |
| relating to -Wcast-function-type, -Wmaybe-uninitialized, and |
| -Wunused-parameter. |
|
|
| - In wcsutrn.l (the units alias translator used by wcsfix), recognise |
| 'Deg', 'Degree', and 'Degrees' as aliases for 'deg'. Rogue header |
| reported by Jim Lewis. |
|
|
| - Added a note to the prologue of spx.h explaining WCSLIB's use of |
| Cox's air-to-vacuum transformation equation rather than the IUGG |
| relation cited in WCS Paper III. Noted by Benjamin Alan Weaver. |
|
|
| - In the test suite, avert nuisance compiler warnings in tdis1. |
| Made tsphdpa more robust in handling user coordinate input. |
|
|
| * PGSBOX |
|
|
| - In pgwcsl_(), avert nuisance warnings from gcc 8.1.0 relating to |
| unused parameters (-Wunused-parameter). Also averted nuisance |
| compiler warnings in cpgtest. |
|
|
| * Utilities |
|
|
| - wcsware was not reading the -TAB table from the FITS file for |
| alternate descriptions, bug reported by Chiara Marmo. Nor was |
| wcsfix() ever invoked for them. |
|
|
| Made it more robust in handling user input of coordinates for the |
| -x and -w options. |
|
|
| - Fixed compiler warnings from gcc 8.1.0 in HPXcvt |
| (-Wmaybe-uninitialized), and wcsgrid (-Wformat-overflow). |
|
|
| * Installation |
|
|
| - Amended configure.ac to allow cross-compilation, and also updated |
| the auxiliary configure scripts in the config/ directory. Patch |
| supplied by Mos� Giordano. |
|
|
|
|
| WCSLIB version 5.18 (2018/01/10) |
| |
|
|
| * C library |
|
|
| - New routines introduced to preclude altering the global variables |
| NPVMAX, NPSMAX, and NDPMAX, which determine how much memory to |
| allocate for storing PVi_ma, PSi_ma, DPja, and DQia keyvalues: |
| wcsinit(), lininit(), lindist(), and disinit(). These are now used |
| by various WCSLIB routines, such as the header parsers, which |
| previously temporarily altered the global variables, thus posing a |
| thread hazard. Testing and feedback on thread-safety issues, with |
| patches, from Rodrigo Tobar Carrizo. |
|
|
| - The Flex scanners, fitshdr(), wcsbth(), wcspih(), wcsulexe(), and |
| wcsutrne(), have been rewritten as thin wrappers (with the same API) |
| over scanners that were modified (with changed API) as required to |
| use Flex's "reentrant" option. Consequently, they are now reentrant |
| and should be thread-safe. That also passes through to the |
| deprecated wrappers, wcsulex() and wcsutrn(). |
| |
| - Fixed memory leaks in lindist() and lincpy() uncovered by valgrind. |
| |
| - Test programs tfitshdr, tpih1, tpih2, and ttab3 are now careful to |
| free all allocated memory before exit to defeat spurious reports of |
| memory leaks by valgrind. |
| |
| * Fortran wrappers |
| |
| - New wrappers for wcsinit(), lininit(), lindist(), and disinit(). |
| |
| * Installation |
| |
| - configure now recognises the value of ARFLAGS obtained from the |
| environment. |
| |
| * User manual |
| |
| - Updates and amendments in line with the above changes. |
| |
| - Documentation generation moved to doxygen 1.8.14 (was 1.8.13). |
| |
| |
| WCSLIB version 5.17 (2017/09/18) |
| -------------------------------- |
| |
| * C library |
| |
| - Fixed a memory leak in wcspih(). Reported by Pim Schellart. |
| |
| - Fixed compiler warnings about comparison between signed and unsigned |
| integers in tab.c (Pey-Lian Lim). Also fixed warnings in other |
| functions about unused parameters. |
| |
| * Fortran wrappers |
| |
| - Fixed compiler warnings about comparison between signed and unsigned |
| integers in several routines. |
| |
| * PGSBOX |
| |
| - Fixed a compiler warning about comparison between signed and |
| unsigned ints. |
| |
| * Installation |
| |
| - Removed setgid permission on installation directories (for Fedora |
| Linux, reported by Sergio Pascual). |
| |
| * User manual |
| |
| - Minor updates and amendments. |
| |
| - Documentation generation moved to doxygen 1.8.13 (was 1.8.10). |
| |
| |
| WCSLIB version 5.16 (2017/01/15) |
| -------------------------------- |
| |
| * C library |
| |
| - Bug fix in spcfix() for the previous change. Reported separately by |
| Julian Taylor & Peter Williams. |
| |
| |
| WCSLIB version 5.15 (2016/04/05) |
| -------------------------------- |
| |
| * C library |
| |
| - Bug fix in wcsulex.l for the previous change. Reported, and fix |
| supplied by Tammo Jan Dijkema. |
| |
| - In spcfix(), report the value of VELREF if ctype is translated from |
| the AIPS convention. |
| |
| |
| WCSLIB version 5.14 (2016/02/07) |
| -------------------------------- |
| |
| * C library |
| |
| - In wcsulex.l and wcsutrn.l, applied a workaround for a memory leak |
| introduced by a change (bug) in flex in Aug/2012. Reported, and |
| fix supplied by Thomas Robitaille and Erik Bray. |
| |
| * Installation |
| |
| - In MacOSX, create symlink libwcs.dylib pointing to the dynamic |
| library so that WCSLIB is linked dynamically by default. Requested |
| by Paul Price. |
| |
| |
| WCSLIB version 5.13 (2016/01/26) |
| -------------------------------- |
| |
| * C library |
| |
| - In wcshdo(), provide floating-point format control via the 'ctrl' |
| argument (formerly 'relax'). |
| |
| - In wcspih(), PLATEID by itself is no longer sufficient to trigger a |
| DSS translation (reported by James Allen). |
| |
| - In unitfix(), ensure that the message buffer cannot be overrun, e.g. |
| by blank-padded unit strings (reported by Vishal Kasliwal). |
| |
| |
| WCSLIB version 5.12 (2015/11/15) |
| -------------------------------- |
| |
| * C library |
| |
| - Bug fix in wcshdo() for CRVALia precision reported by Mihai Cara. |
| |
| |
| WCSLIB version 5.11 (2015/10/18) |
| -------------------------------- |
| |
| * C library |
| |
| - Bug fixes in wcspih.l and dis.c for WAT distortions provided by |
| Ole Streicher. |
| |
| |
| WCSLIB version 5.10 (2015/10/09) |
| -------------------------------- |
| |
| * C library |
| |
| - In wcshdo(), allow output of floating point keyvalues to 15 |
| significant digits (was 14), mainly for astropy. |
| |
| - In wcspih(), allow unrecognised WAT projection types (tan, etc.) to |
| pass without returning an error. Reported by Michael Droettboom. |
| Also fixed a bug triggered by SIP keywords in unconventional order, |
| reported by Colin Slater, LSST. |
| |
| |
| WCSLIB version 5.9 (2015/07/21) |
| ------------------------------- |
| |
| * C library |
| |
| - In disx2p(), make proper allowance for the possibility that the TPD |
| and SIP forward and inverse distortion polynomials may not be of the |
| same degree, reported by Martin Kuemmel. |
| |
| - Fix-ups in wcshdo() reported by Michael Droettboom, and several |
| tidy-ups as well. |
| |
| |
| WCSLIB version 5.8 (2015/07/08) |
| ------------------------------- |
| |
| * C library |
| |
| - DSS (Digitized Sky Survey) coordinates are now handled via TPD, as |
| are the TNX and ZPX "projections". New test script tdis3 and |
| headers DSS.keyrec, TNX.keyrec, and ZPX.keyrec. |
| |
| - New function dishdo() can be used to set a flag that causes |
| wcshdo() to write headers in the form of the distortion function |
| used internally (usually TPD). |
| |
| - Added the capability, via DPja.DOCORR, for a distortion function to |
| to compute an additive correction to the undistorted coordinates |
| (rather than computing the distorted coordinates themselves). |
| |
| - Added auxiliary variables to TPD via DPja.AUX.jhat.COEFF.m. |
| |
| - Bug fix in wcshdo() for TPV, diagnosed by Michael Droettboom. |
| |
| * Fortran wrappers |
| |
| - Wrapper for dishdo(). |
| |
| |
| WCSLIB version 5.7 (2015/06/29) |
| ------------------------------- |
| |
| * C library |
| |
| - Extended wcssub() to handle distortions (and thus wcscopy() also). |
| This required axis mapping to be enabled for SIP distortions within |
| WCSLIB. |
| |
| - wcshdo() now handles all distortions currently supported by WCSLIB: |
| SIP, TPV, TPD, and Polynomial. |
| |
| - Bug fixes in sphx2s() and sphs2x() for non-unit vector strides for |
| special-case rotations. |
| |
| - In wcsset(), modify wcsprm::ctype after translating TPV so that |
| subsequent calls won't try to re-translate it, the PVi_ma records |
| by then having been erased. Reported by Michael Droettboom. Also, |
| restore NDPMAX after translating TPV. |
|
|
| - Bug fixes in discpy(), disprt(), disset(), and disx2p(). |
|
|
| - Added disperr(), prjperr(), spcperr(), spxperr(), and tabperr() to |
| complete the set and make reporting errors slightly more convenient. |
|
|
| * Utilities |
|
|
| - wcsware has a new option, -o, to print the wcsprm struct in the form |
| of a FITS header using wcshdo(). Also, the -a option has been |
| extended to allow a 0-relative numeric index for selecting an |
| alternate WCS, where the alternates are sequenced alphabetically |
| (without gaps) following the primary representation. |
|
|
| * User manual |
|
|
| - Documentation generation moved to doxygen 1.8.10 (was 1.8.9.1). |
|
|
|
|
| WCSLIB version 5.6 (2015/06/14) |
| |
|
|
| * C library |
|
|
| - Bug fixes in wcspih() and sipset() to account for the fact that the |
| independent variables of the SIP polynomial are pixel coordinate |
| offsets from CRPIXja, not pixel coordinates per se. Diagnosed by |
| Michael Droettboom. |
|
|
| Validated SIP and TPV handling by comparing the output of |
| 'wcsware -x' with that of wcstools 'xy2sky -d -n6' using astropy's |
| SIP test headers, and separate SIP and TPV headers originating from |
| the Palomar Transient Factory provided by David Shupe. |
| |
| Changed SIP.keyrec so that CRPIX1 and CRPIX2 differ in value, |
| thereby making tests sensitive to any confusion between the two. |
| |
| |
| WCSLIB version 5.5 (2015/05/05) |
| ------------------------------- |
| |
| * C library |
| |
| - Bug fixes in wcspih.l for headers with multiple distortions, and for |
| distortion parameter look-alike keywords. |
| |
| - Bug fix in sipset() uncovered by valgrind. |
| |
| |
| WCSLIB version 5.4.1 (2015/05/01) |
| --------------------------------- |
| |
| * C library |
| |
| - Added a fairly lengthy section to the prologue of dis.h describing |
| the Paper IV keywords and the distortion functions currently |
| implemented. |
| |
| * User manual |
| |
| - Added a new section on WCSLIB version numbers. |
| |
| |
| WCSLIB version 5.4 (2015/04/21) |
| ------------------------------- |
| |
| * C library |
| |
| - Further work on distortions: wcspih() now parses Paper IV distortion |
| keywords (CPDISja, CQDISia, DPja, DQia, etc.), thus handling record- |
| valued keywords. SIP keywords are also parsed and translated into |
| Paper IV keywords. |
| |
| - TPV, SIP, and whereever possible, the general Polynomial distortion |
| function of Paper IV are now implemented by the Template Polynomial |
| Distortion (TPD), that being a superset of TPV and SIP. TPD, which |
| can also handle 1D distortions and be used for inversions, is also |
| supported as a separate distortion type defined by Paper IV |
| keywords. TPD efficiently handles 1D distortions and distortions |
| without radial terms. |
| |
| - Specialized inverse distortions, such as defined by SIP, are |
| implemented by TPD and recognized by disx2p(), which uses them to |
| compute the initial approximation of its more precise iterative |
| solution. |
| |
| - Generalized tdis1.c so that it can do closure tests for SIP headers, |
| and added a SIP test header. |
| |
| |
| WCSLIB version 5.3.1 (2015/04/21) |
| --------------------------------- |
| |
| * C library |
| |
| - Bug fix in test program tdis1.c reported by Martin Kuemmel. |
| |
| |
| WCSLIB version 5.3 (2015/04/21) |
| ------------------------------- |
| |
| First public release of WCSLIB 5.x with distortions capability. |
| |
| * C library |
| |
| - Changed disprm::dtype from char[16] to char[72] for reasons relating |
| to header parsing. |
| |
| - More armour plating for disset() and friends. They also use new |
| utility functions wcsutil_dpkey_int() and wcsutil_dpkey_double() to |
| extract numeric values from a dpkey struct. This ensures their |
| independence of the data type, the appropriate reporting of dpkey |
| values by disprt(), and (eventually) the appropriate writing of DPja |
| and DQia keyvalues by wcshdo(). |
| |
| - Augmented the usage comments for dpfill() to explain how numeric |
| values in a dpkey struct are handled. |
| |
| * Utilities |
| |
| - wcsware now uses wcserr to provide a backtrace on errors. Also |
| fixed a couple of minor annoyances relating to alternate |
| representations. |
| |
| |
| WCSLIB version 5.2 beta release (2015/04/15) |
| -------------------------------------------- |
| |
| * C library |
| |
| - Further development of disprm and related functions to implement |
| the FITS keywords for distortions introduced in WCS Paper IV, thus |
| changing disprm's ABI once again. |
|
|
| disprm's model is now similar to wcsprm's handling of PVi_ma and |
| PSi_ma, where the parsed keyrecords are loaded into a set of pvcard |
| and pscard structs and wcsset() does the analysis. For disprm, the |
| parsed DPja or DQia keyrecords are loaded into a set of dpkey |
| structs for disset() to analyse. |
|
|
| - New function dpfill() aids in filling a dpkey struct. Function |
| disparms() has been removed. It was no longer needed as |
| disprm::parms[][] is now a "returned" member of the struct. |
|
|
| - Implementation of the general Polynomial distortion function defined |
| in Sect. 3.1 of WCS Paper IV. The polynomial is defined in terms of |
| Paper IV keywords. |
|
|
| - Bug fixes in diswarp() and linwarp() reported by |
| Michael Droettboom. |
|
|
| - Test program tdis1 now tests a TPV header for closure in two ways: |
| directly as a specialist TPV distortion (as before), then by |
| translating it into a general polynomial distortion. It then also |
| tests that the TPV and polynomial distortions produce the same |
| results. |
|
|
| * Fortran wrappers |
|
|
| - Changes to the wrappers reflecting changes to disprm. |
|
|
| - Bug fixes in fitshdr_f.c, and test programs tdis1.f, tfitshdr.f, |
| twcsfix.f, and twcs.f. All reported and/or fixed by Ole Streicher. |
|
|
|
|
| WCSLIB version 5.1 beta release (2015/04/07) |
| |
|
|
| * C library |
|
|
| - Distortions-related bug fixes to linset(), linp2x(), and linx2p(). |
|
|
| - New functions diswarp() and linwarp() compute statistics of the |
| distortion functions over a specified domain. Changed tdis1.c to |
| test them. |
|
|
| - Changes to disprm (so changed ABI). |
|
|
| * Fortran wrappers |
|
|
| - Wrappers for diswarp() and linwarp(). |
|
|
|
|
| WCSLIB version 5.0 beta release (2015/04/05) |
| |
|
|
| * C library |
|
|
| - Implemented the framework of WCS Paper IV (the draft distortions |
| proposal) based on a new struct, disprm, and suite of routines with |
| header dis.h: disini(), disalloc(), discpy(), disfree(), disprt(), |
| disset(), disp2x(), and disx2p(). New test program tdis1. |
|
|
| Consequent changes to the linprm struct have altered its ABI, thus |
| necessitating an increment in the WCSLIB major verion number. |
|
|
| - wcsset() now recognises the "TPV" projection proposed in an early |
| draft of WCS Paper II, and translates it into a disprm distortion - |
| by request of Octavi Fors. Additionally, it recognises "TPU" as |
| equivalent to "TPV" but using a prior distortion (coming before the |
| linear transformation matrix) rather than sequent (coming after it). |
|
|
| - In wcspih() and wcsbth(), added relaxation flags to allow PC0i_0ja, |
| PV0j_0ma, and PS0j_0ma (i.e. with leading zeroes on the index). |
|
|
| - Added wcslib_version() to return the WCSLIB version number, as |
| suggested by Ole Streicher. |
|
|
| - Fixed problems uncovered by valgrind in prjbchk() (reported by |
| Ger van Diepen), sphx2s(), sphx2s(), spcspxe(), spcxpse(), tabini(), |
| and wcshdo_util(). |
|
|
| - Tidied up error reporting, particularly relating to translating |
| status returns from lower-level functions. New functions linperr() |
| and celperr() report error messages from the structs they contain |
| in addition to their own. |
|
|
| - Changed output formatting of floating point values in linprt(), |
| celprt(), prjprt(), spcprt(), tabprt(), and wcsprt(). Updated the |
| test output reference files for tbth1, tpih1, twcsfix, twcssub, and |
| twcstab to suit. |
|
|
| - Tidied up several of the test programs, mostly to free memory |
| explicitly before exit so that valgrind doesn't report (non-)leaks. |
|
|
| * Fortran wrappers |
|
|
| - Wrappers for the new distortion functions. New test programs |
| tdis1.f and tdis2.f. |
|
|
| - Updates following changes to wcspih() and wcsbth(). |
|
|
| - Added wrappers for linperr() and celperr(). Also added prjperr_(), |
| spcperr_(), and tabperr_() as convenient wrappers on wcserr_prt(). |
|
|
| - Wrapper for wcslib_version(). |
|
|
| * Utilities |
|
|
| - Added a "lint" function to wcsware to check a FITS header for |
| conformance to the WCS standard. New test program twcslint. |
|
|
| * PGSBOX |
|
|
| - In PGCRLB, fixed an incorrect use of the MOD intrinsic reported by |
| 'gfortran -std=f95' via Jean-Baptiste Marquette. |
|
|
|
|
| WCSLIB version 4.25.1 (2015/01/05) |
| |
|
|
| * C library |
|
|
| - Updated the test output reference files for tpih1, tbth1, twcsfix, |
| and twcstab to account for the change to wcsset() in release 4.25. |
|
|
| * Fortran wrappers |
|
|
| - Updated the test output reference files for tpih1, twcsfix, and |
| twcstab to account for the change to wcsset() in release 4.25. |
|
|
| * User manual |
|
|
| - Documentation generation moved to doxygen 1.8.9.1 (was 1.8.8). |
|
|
|
|
| WCSLIB version 4.25 (2014/12/15) |
| |
|
|
| * C library |
|
|
| - wcsset() now supplies default values for the auxiliary keywords |
| EQUINOXa and RADESYSa if not present in the FITS header. |
|
|
|
|
| WCSLIB version 4.24 (2014/09/19) |
| |
|
|
| * C library |
|
|
| - Changed API to wcscompare() to allow a tolerance to be specified for |
| floating-point comparisons. Contributed by Michael Droettboom. |
|
|
| * Fortran wrappers |
|
|
| Track the change to wcscompare(). |
|
|
| * User manual |
|
|
| - Documentation generation moved to doxygen 1.8.8 (was 1.8.4). |
|
|
| - Added mention of WCSLIB in "homebrew-science" (MacOSX) in the |
| section on other packages. |
|
|
|
|
| WCSLIB version 4.23 (2014/05/11) |
| |
|
|
| * C library |
|
|
| - New function wcscompare() compares two wcsprm structs for equality |
| with varying degrees of strictness. Test program twcscompare. |
| Contributed by Michael Droettboom. |
|
|
| - In wcssub(), fixed a bug uncovered by valgrind arising from |
| allocation of insufficient memory for temporaries when a new axis |
| is added. Reported by Michael Droettboom. |
|
|
| - In wcshdo(), don't write RESTFRQ or RESTWAV if zero. |
| |
| Also, to distinguish them from integer keyvalues, floating- |
| point values will now always be written with an exponent or |
| fractional part, ".0" being appended if necessary to achieve this. |
| Suggested by Peter Weilbacher. |
| |
| - Fixed the '-h' option in twcshdr. |
| |
| * Fortran wrappers |
| |
| - Wrapper for wcscompare(). |
| |
| |
| WCSLIB version 4.22 (2014/04/13) |
| -------------------------------- |
| |
| * C library |
| |
| - In pcox2s() and pcos2x(), use alternative projection equations for |
| greater numerical precision near theta == 0. In cops2x(), return |
| an exact result for theta at the poles. Relaxed the tolerance for |
| bounds checking a little in sflx2s(). |
| |
| |
| WCSLIB version 4.21 (2014/03/24) |
| -------------------------------- |
| |
| * C library |
| |
| - New function prjbchk() performs bounds checking on native spherical |
| coordinates. It is invoked automatically by the deprojection (x2s) |
| routines if prjprm::bounds&4 is set. Documented the new bounds |
| checking implemented by prjbchk() in the prologue entry for |
| wcsbchk(). Improvements to tprj1 to test the vector API of prjx2s() |
| and to deal better with out-of-bounds native coordinates returned by |
| it. |
| |
| - Bug fixes in the projection routines: in hpxx2s() relating to bounds |
| checking, bug introduced at 4.20, reported by Michael Droettboom; in |
| parx2s() and molx2s() relating to setting the stat vector; in |
| hpxx2s() relating to implementation of the vector API; and in |
| xphx2s() relating to setting an out-of-bounds value of phi. |
| |
| * Fortran wrappers |
| |
| - Wrapper for prjbchk(). Modified tprj1.f to track changes to the C |
| version. |
| |
| |
| WCSLIB version 4.20 (2013/12/18) |
| -------------------------------- |
| |
| * C library |
| |
| - New function, wcsbchk(), for controlling bounds checking in the |
| projection routines. |
| |
| - Enable bounds checking in the pixel-to-sky (x2s) direction for HPX |
| and XPH if prjprm::bounds&2. Tightened bounds checking in xphx2s(). |
| prjini() now sets prjprm::bounds = 3 to enable all bounds checking |
| by default. |
| |
| - Fixed an incorrect error message in wcs_units(). Also report |
| potentially unsafe units translations in unitfix() - both |
| contributed by Michael Droettboom. |
| |
| * Fortran wrappers |
| |
| - Wrapper for wcsbchk(). |
| |
| * PGSBOX |
| |
| - Fixed a few nuisance warnings from gfortran 4.7.2 relating to |
| implicit type conversions in pgsbox.f. |
| |
| * User manual |
| |
| - Added mention of wcsjs (Javascript) in the section on other |
| packages. |
| |
| |
| WCSLIB version 4.19 (2013/09/30) |
| -------------------------------- |
| |
| * C library |
| |
| - Bug fix in wcshdo(), uncovered by cppcheck and reported by David |
| Binderman. Fixed additional minor inconsistencies in hpxx2s(), |
| wcsprintf(), and wcsfprintf() reported by cppcheck. |
| |
| - Minor fix to twcstab reported by cppcheck. |
| |
| - Bug fix in wcssub() for handling (non-standard) PROJPn keywords |
| (uncovered by valgrind, reported by Paul Price). |
| |
| |
| WCSLIB version 4.18 (2013/07/13) |
| -------------------------------- |
| |
| * C library |
| |
| - Implemented the butterfly projection (XPH), being the polar form of |
| the HEALPix projection with (H,K) = (4,3). Augmented tprj1.c and |
| tprj2.c to suit. |
| |
| - Bug fix in celfix() when translating GLS to SFL with non-zero |
| reference point. |
| |
| * Fortran wrappers |
| |
| - Wrappers for the XPH projection functions and corresponding |
| modifications to the test programs. |
| |
| - Fixed a few inconsequential warnings from gfortran 4.7.2 relating |
| to implicit type conversions in the test programs. |
| |
| * Utilities |
| |
| - In HPXcvt, fixed incorrect axis scaling (CDELT1 and CDELT2) in the |
| XPH header, and set the PCi_ja matrix in the HPX header to a pure |
| 45 degree rotation with appropriate adjustment of CDELT1 and CDELT2 |
| (matching XPH). Also set LONPOLE to 180 degree in the XPH header |
| with adjustment of CRVAL1 as recommended in the errata. These |
| changes prompted by Paddy Leahy. Also, modified the FITS header |
| comment for XPH - it is no longer "experimental", and accept the |
| '-x' option (i.e. without qualification) as equivalent to '-xn'. |
| |
| * User manual |
| |
| - Documentation generation moved to doxygen 1.8.4 (was 1.5.6). |
| |
| |
| WCSLIB version 4.17 (2013/01/29) |
| -------------------------------- |
| |
| * C library |
| |
| - Added wcsfprintf() to wcsprint.h. Now used in wcsbth() and wcspih() |
| to allow diagnostic output to be redirected. Changes provided by |
| Michael Droettboom. |
| |
| |
| WCSLIB version 4.16 (2012/11/07) |
| -------------------------------- |
| |
| * C library |
| |
| - When wcspih() constructs a default coordinate representation it will |
| give it the special name "DEFAULTS", and will not report "Found one |
| coordinate representation" (if reporting is enabled). |
| |
| * Utilities |
| |
| - wcsware has a new option, -P, which does the same as -p except that |
| it won't print a wcsprm struct with the name "DEFAULTS". |
|
|
|
|
| WCSLIB version 4.15 (2012/09/26) |
| |
|
|
| * C library |
|
|
| - Bug fixes in spctype(), spcspxe(), spcxpse, and spctrne() for |
| propagating an error status correctly from lower-level routines. |
| Amendments to the prologues of these routines. Reported by |
| Hans Terlouw. |
|
|
| - Similarly for wcsunitse(), wcsulexe(), and wcsutrne(). |
|
|
| * PGSBOX |
|
|
| - Bug fix in PGSBOX for handling cycles in angle when both world |
| coordinate elements are angular. Reported by Thomas Robitaille. |
|
|
|
|
| WCSLIB version 4.14 (2012/07/13) |
| |
|
|
| * C library |
|
|
| - Problems were caused for fitshdr(), wcsbth(), wcspih(), wcsulex(), |
| datfix() and wcshdo(), by locales such as "fr_FR" in which commas |
| are used to delimit the decimal part of floating point numbers. |
| In particular, these locales adversely affect the behaviour of |
| sscanf() and sprintf() when reading and writing FITS header |
| keyvalues. Thread-safe fixes provided by Michael Droettboom. |
|
|
| - Applied astropy patches from Michael Droettboom: attend to compiler |
| warnings in prj.c, spc.c, tab.c, and wcsutil.c, including those for |
| MS-Windows. |
|
|
|
|
| WCSLIB version 4.13.4 (2012/04/02) |
| |
|
|
| * Installation |
|
|
| - Relaxed the closure tolerance slightly in tlog.f as for tlog.c |
| previously. |
|
|
|
|
| WCSLIB version 4.13.3 (2012/03/26) |
| |
|
|
| * Installation |
|
|
| - Relaxed the closure tolerance slightly in tlog.c for gcc 4.6.3 on |
| Ubuntu 12.04 (reported by Ole Streicher). |
|
|
|
|
| WCSLIB version 4.13.2 (2012/03/21) |
| |
|
|
| * Installation |
|
|
| - Changes to configure.ac and the GNUmakefiles to put '-lm' strictly |
| in the correct sequence when producing the sharable library |
| (reported by Ole Streicher). |
|
|
|
|
| WCSLIB version 4.13.1 (2012/03/15) |
| |
|
|
| * C library |
|
|
| - Workaround in wcserr_set() for an unfortunate compiler segv from |
| gcc 4.2.1 in MacOSX 10.7. |
|
|
|
|
| WCSLIB version 4.13 (2012/03/14) |
| |
|
|
| * C library |
|
|
| - Allow naxis == 0 in wcsini() and linini() for a degenerate |
| coordinate system as may be produced by wcssub(). In wcssub(), |
| ensure that wcsini() is called for coordinate systems with |
| naxis == 0. In wcssptr(), call spcfree() before spcini() to plug a |
| memory leak. |
|
|
|
|
| WCSLIB version 4.12 (2012/02/29) |
| |
|
|
| * C library |
|
|
| - In spctrne(), guard against restfrq == restwav == 0.0 when |
| translating between two velocity-characteristic types, or between |
| two wave-characteristic types (the translation is independent of |
| restfrq and restwav, but a dummy value is needed for intermediate |
| calculations). |
|
|
|
|
| WCSLIB version 4.11 (2012/02/21) |
| |
|
|
| * C library |
|
|
| - Bug fix in spcset() for handling simple linear spectral axes. |
|
|
| * Fortran wrappers |
|
|
| - Bug fix in spctrne_() for handling ctypeS2. |
|
|
|
|
| WCSLIB version 4.10 (2012/02/06) |
| |
|
|
| * C library |
|
|
| - datfix() and spcfix() now return informative messages when dates and |
| AIPS-convention spectral axes are translated (changes contributed by |
| Michael Droettboom). spcaips() now returns an error status for |
| invalid values of VELREF. |
|
|
| - wcssub() has been augmented with the ability to add new axes onto a |
| wcsprm struct. |
|
|
|
|
| WCSLIB version 4.9 (2012/01/24) |
| |
|
|
| * C library |
|
|
| - Fixes to wcsfixi() for collecting the messages properly in the info |
| array (from Michael Droettboom). |
|
|
| - Handle certain malformed date strings more gracefully in datfix(). |
|
|
| - Make informative messages printed by wcserr_prt() a bit more |
| informative. |
|
|
|
|
| WCSLIB version 4.8.4 (2011/12/05) |
| |
|
|
| * C library |
|
|
| - Fixed the pseudo-random number generator in twcstab.c - gcc 4.6 with |
| '-O2' baulked at testing for signed integer overflow. |
|
|
| * Installation |
|
|
| - In configure.ac, the Fortran compiler's libraries must be added to |
| the link list when checking for the PGPLOT libraries since gcc is |
| driving the linker. Likewise in C/GNUmakefile when linking test |
| programs that use PGPLOT. |
| |
| - Use 'make CHECK=nopgplot check' to run only the non-graphical tests |
| (even if PGPLOT is available). |
| |
| - After compiling and running the tests, 'make check' now summarizes |
| the non-graphical test results and stops if any failed. |
| |
| |
| WCSLIB version 4.8.3 (2011/11/17) |
| --------------------------------- |
| |
| * C library |
| |
| - Minor generalization of the wcserr diagnostics to allow the return |
| of informative messages, which are associated with negative status |
| values. wcserr_prt() will now recognize and print them as such. |
| Added wcserr_clear() to reset (clear) a wcserr struct. |
| |
| - Modified unitfix() to return an informative message if a units |
| alias is applied, and wcsfixi() to allow such messages to be |
| propagated through the info array (from Michael Droettboom). |
| |
| - Modified twcsfix.c to use wcserr diagnostics, in particular to |
| report units alias translations. |
| |
| * Fortran wrappers |
| |
| - In wcsfix_(), interpret *naxis == 0 as meaning naxis == 0x0, thus |
| causing cylfix() to be skipped. |
| |
| - Modified twcsfix.f to reflect changes made to twcsfix.c. |
| |
| |
| WCSLIB version 4.8.2 (2011/10/04) |
| --------------------------------- |
| |
| * Installation |
| |
| - Changes for Debian package generation contributed by Ole Streicher: |
| - Corrections to 'configure' reported by 'lintian'. |
| - Generate man pages for the utility programs and install them. |
| |
| |
| WCSLIB version 4.8.1 (2011/09/19) |
| --------------------------------- |
| |
| * Installation |
| |
| - Set SONAME in the sharable library in accordance with |
| tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html |
| (reported by Ole Streicher, Debian package maintainer). The |
| sharable library will again be installed with full release number |
| and with a symbolic link from SONAME pointing to it. If defined, |
| SHRLN will point to SONAME. |
| |
| |
| WCSLIB version 4.8 (2011/08/15) |
| ------------------------------- |
| |
| * C library |
| |
| - New error diagnostics mechanism contributed by Michael Droettboom: |
| |
| Most functions that return a numeric status (error) code now also |
| write a detailed error message to a wcserr struct attached to the |
| passed-in *prm struct. See wcserr.h for more information. |
| |
| Functions that didn't have a *prm struct as an argument have no |
| direct way to return an error message. Therefore, these functions |
| now have duplicate versions with the suffix "e" that take an |
| additional "struct wcserr *" parameter. These functions are: |
|
|
| spcspx() -> spcspxe() |
| spctrn() -> spctrne() |
| spctyp() -> spctype() |
| spcxps() -> spcxpse() |
| wcsulex() -> wcsulexe() |
| wcsunits() -> wcsunitse() |
| wcsutrn() -> wcsutrne() |
|
|
| A new function wcsfixi() was added which is identical to wcsfix() |
| but in addition stores all of the detailed textual messages about |
| the fixes that were performed. |
|
|
| - In wcssub(), ensure that wcstab->m_tab has been initialized |
| before trying to free it on status return 12 or 13 (reported by |
| Hans Terlow). |
|
|
| - Bug fixes: |
| - In sphx2s() and sphs2x() for the case where |eul[1]| = 180.0. |
| - For parsing AIPS-convention VELREF in wcsbth(). |
| - In spcaips() for translating AIPS-convention CTYPEia without |
| Doppler frame. |
|
|
| - Non-graphical test programs now simply report "PASS" if they satisfy |
| the reporting tolerance for closure residuals, etc. Their full |
| output is reported otherwise. Run 'make MODE=interactive check' to |
| revert to the previous behaviour of reporting the full output for |
| tests that succeed. |
|
|
| - Eliminated compiler warnings about type-punning of pointer-to- |
| function. |
|
|
| * Fortran wrappers |
|
|
| Extensive modifications to track the new error handling mechanism |
| in the C library. |
|
|
| * Installation |
|
|
| - configure now prefers gfortran over g77 if available. |
|
|
| - Don't rely on "." being in the PATH if config.status needs to be |
| run in the pgsbox and utils makefile (reported by Peter Teuben). |
| |
| |
| WCSLIB version 4.7 (2011/02/07) |
| ------------------------------- |
| |
| * C library |
| |
| - Bug fix in celset() for interpreting LATPOLEa when LONPOLEa = phi0. |
| Crept in at version 4.4. |
| |
| - Fixed the bounds test on y in hpxx2s() (HEALPix projection) for |
| unconventional values of H and K. In hpxx2s() and hpxs2x(), |
| corrected the offset of the southern polar half-facets for |
| even K. In hpxs2x(), put the phi = 180 meridian in the expected |
| place. |
| |
| - Bug fixes in tabx2s() and tabs2x() for default indexes (reported |
| by David Berry). In tabs2x(), if no solution is found then do |
| minor extrapolation past the ends of each row (1-D case only). |
| Sped up tabs2x() by about 50%. |
| |
| - New functions wcsprintf(), wcsprintf_set(), and wcsprintf_buf(), |
| declared in wcsprintf.h, provide control over the disposition of |
| output from celprt(), linprt(), prjprt(), spcprt(), tabprt(), and |
| wcsprt() routines. Prompted by Michael Droettboom, with an initial |
| implementation. |
| |
| * Fortran wrappers |
| |
| - In the various test programs, used EQUIVALENCEs to ensure that the |
| CEL, LIN, PRJ, etc. arrays are aligned on a DOUBLE PRECISION |
| boundary. |
| |
| * PGSBOX |
| |
| - Bug fix for the case where NG1 == 0 and GRID1(0) < 0, and likewise |
| for NG2 and GRID2. |
| |
| * Utilities |
| |
| - In wcsware, added a '-w' option to convert world coordinates |
| obtained from stdin to pixel coordinates using wcss2p(). Allow |
| multiple sets of input coordinates with the '-x' and '-w' options |
| and report the value of the intermediate world coordinates. |
| |
| * User manual |
| |
| - Fixed list formatting for function return values < 0 or > 9. |
| |
| - New section for wcsprintf() and related routines. |
| |
| * Installation |
| |
| - Changes prompted by S�bastien Fabbro for the Gentoo Linux package: |
| a) autoconf updates, |
| b) respect LDFLAGS when building the shared library, |
| c) install documentation, |
| d) recognise DESTDIR for doing a staged installation. |
| |
| - As of this release, the minor WCSLIB version number (second field) |
| will be incremented if and only if a change is made that affects the |
| library itself, not the documentation or utilities. The version |
| number on the installed libraries and header files will omit the |
| patch number (third field). |
| |
| |
| WCSLIB version 4.6.3 (2010/11/24) |
| --------------------------------- |
| |
| * C library |
| |
| - Bug fix in wcsbth() for handling the inheritance of image header |
| keywords (uncovered by valgrind, reported by Jim Lewis). |
| |
| |
| WCSLIB version 4.6.2 (2010/11/22) |
| --------------------------------- |
| |
| * C library |
| |
| - Fixed a memory leak in wcsbth.l (reported by Jim Lewis). |
| |
| |
| WCSLIB version 4.6.1 (2010/11/18) |
| --------------------------------- |
| |
| * Fortran wrappers |
| |
| - Fixed typos in cel_f.c, celget[cdi] -> celgt[cdi]. |
| |
| |
| WCSLIB version 4.6 (2010/11/16) |
| ------------------------------- |
| |
| * C library |
| |
| - In wcsulex.l and wcsutrn.l, stdlib.h must be included explicitly |
| before the redefinition of exit() - most versions of flex do include |
| it upfront but some don't (reported by Peter Williams). |
|
|
| * Fortran wrappers |
|
|
| - Changes intended to avert nuisance compiler warnings that could |
| potentially obscure warnings indicative of a genuine problem: |
|
|
| - To stop messages about unused variables when the relevant compiler |
| option is set, e.g. 'g77 -Wunused', the various *_ERRMSG arrays |
| defined in the Fortran include files and (formerly) initialized |
| therein via DATA statements, e.g. PRJ_ERRMSG in prj.inc, have now |
| been placed into COMMON blocks with names such as PRJ_DATA, and |
| are initialized via DATA statements in BLOCK DATA subprograms |
| defined in separate files, e.g. prj_data.f. |
|
|
| - To stop messages about subroutines being invoked with inconsistent |
| argument lists if the relevant compiler option is not set, e.g. |
| 'g77 -Wno-globals', the C wrapper functions that take 'void *' |
| arguments now have separate forms for INTEGER, DOUBLE PRECISION, |
| and CHARACTER arguments that simply invoke the generic function. |
| Application code must be modified to take advantage of this. |
|
|
| * User manual |
|
|
| - In the section on the Fortran wrappers in the manual, warn about the |
| need for the INTEGER array holding a data structure to be aligned on |
| a DOUBLE PRECISION boundary. |
|
|
|
|
| WCSLIB version 4.5.6 (2010/10/28) |
| |
|
|
| * Installation |
|
|
| - Fixed the search for CFITSIO and PGPLOT library and include |
| directories. |
|
|
|
|
| WCSLIB version 4.5.5 (2010/10/14) |
| |
|
|
| * Installation |
|
|
| - Build the PGSBOX sharable library. |
|
|
|
|
| WCSLIB version 4.5.4 (2010/09/28) |
| |
|
|
| * C library |
|
|
| - In wcshdo(), according to the FITS standard, "Letters in the |
| exponential form ('E' or 'D') shall be upper case" (reported by |
| Michael Droettboom). |
|
|
|
|
| WCSLIB version 4.5.3 (2010/09/23) |
| |
|
|
| * Utilities |
|
|
| - Various improvements to wcsgrid: correct the scaling set via |
| cpgwnad(); label angles other than RA,Dec in decimal degrees; |
| draw the projection boundary for projections other than zenithals. |
|
|
|
|
| WCSLIB version 4.5.2 (2010/09/23) |
| |
|
|
| * C library |
|
|
| - Fixed the translation of GLS to SFL in wcsset() and celfix() when |
| the reference longitude is non-zero - it introduces an offset in |
| longitude in the normal way. (This undoes part of the change |
| applied in version 4.4.) |
|
|
|
|
| WCSLIB version 4.5.1 (2010/08/12) |
| |
|
|
| * C library |
|
|
| - New utility function, sphpad(), computes the coordinates of points |
| offset by given angular distances and position angles from a given |
| point on the sky (complementary to sphdpa()). |
|
|
| * Fortran wrappers |
|
|
| - New wrapper function: |
| - SPHPAD for sphpad(). |
|
|
|
|
| WCSLIB version 4.5 (2010/07/16) |
| |
|
|
| * C library |
|
|
| - Fixed the interpretation of VELREF when translating AIPS-convention |
| spectral types. Such translation is now handled by a new special- |
| purpose function, spcaips(). The wcsprm struct has been augmented |
| with an entry for velref which is filled by wcspih() and wcsbth(). |
| Previously, selection by VELREF of the radio or optical velocity |
| convention for type VELO was not properly handled. |
|
|
| * Fortran wrappers |
|
|
| - New wrapper function: |
| - SPCAIPS for spcaips(). |
|
|
| - Changed spc.inc, spc_f.c, wcs.inc and wcs_f.c to track VELREF |
| changes. |
|
|
| - Declared functions external in the include files to avoid compiler |
| warnings about unused variables (if the particular option is set). |
|
|
| * Utilities |
|
|
| - Added a '-q' option to fitshdr to quit after a specified number |
| of HDUs. |
|
|
|
|
| WCSLIB version 4.4.4 (2009/09/14) |
| |
|
|
| * Installation |
|
|
| - Added more configure options for controlling the build: |
| |
| |
|
|
|
|
| WCSLIB version 4.4.3 (2009/09/03) |
| |
|
|
| * C library |
|
|
| - Set wave number units to "/m" in spctyp(), was "1/m" which is not |
| strictly legal and wasn't handled by wcsulex() (reported by |
| Hans Terlow). Also fixed a number of units specifications in the |
| prologue of spx.h to conform with Paper I usage. |
| |
| - In wcsulex(), allow unit strings like "1/m" in addition to "/m", |
| provided that the superfluous "1" is the first non-blank character |
| in the expression, or parenthesised sub-expression. |
| |
| - In wcssptr(), ensure that i is always reset if given < 0. |
| |
| * User manual |
| |
| - Augmented the list of FITS WCS and related software in the manual. |
| |
| |
| WCSLIB version 4.4.2 (2009/08/13) |
| --------------------------------- |
| |
| * C library |
| |
| - In sphx2s() and sphs2x(), handle the case where |eul[1]| = 180.0 |
| separately for speed and accuracy. This change also fixes a rare |
| and subtle bug in cels2x() that occurs when celprm::isolat is set |
| and the magnitude of the first latitude in the lat[] vector exceeds |
| 90 deg (reported by Hans Terlouw). |
| |
| * Installation |
| |
| - Fix relating to creation of symlinks when installing the libraries. |
| |
| |
| WCSLIB version 4.4.1 (2009/08/11) |
| --------------------------------- |
| |
| * Installation |
| |
| - Fixes for installation of the CHANGES file and for the creation of a |
| symbolic link for the sharable library if one already exists. |
| |
| |
| 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 the call to wcss2p() in twcshdr (in a section of code not |
| usually exercised). |
| |
| * 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 (WCSLEN, PRJLEN, etc.) 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. |
| |
| * Installation |
| |
| - 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. |
| |
| |
| WCSLIB version 4.3.2 (2009/03/16) |
| --------------------------------- |
| |
| * C library |
| |
| - utils/GNUmakefile: create BINDIR if necessary prior to installing |
| utilities. |
| |
| |
| WCSLIB version 4.3.1 (2008/09/08) |
| --------------------------------- |
| |
| * Installation |
| |
| - Top-level GNUmakefile: install header files. |
| |
| |
| WCSLIB version 4.3 (2007/12/27) |
| ------------------------------- |
| |
| * C library |
| |
| - A new general WCS header parser wcsbth() handles binary table image |
| arrays and pixel lists as well as image array headers. Added |
| "colax" to the wcsprm struct to record the column numbers for each |
| axis in a pixel list. |
| |
| - New function wcsbdx() is the analog of wcsidx() for the array of |
| wcsprm structs returned by wcsbth(). |
| |
| - New function wcshdo() writes out a wcsprm struct as a FITS header. |
| |
| - Changes to wcspih(): |
| - Bug fix, check for a == 0 (indication of a keyword that applies |
| to all alternates) in internal helper function wcspih_naxes() |
| (reported by Craig Markwardt). |
| - Added a new ctrl option to remove valid WCS keyrecords except for |
| those with a more general role, namely {DATE,MJD}-{OBS,AVG} and |
| OBSGEO-{X,Y,Z} (suggested by Jim Lewis). |
| - Added a rule for VELANGLa. Also added "velangl" to the wcsprm |
| struct. |
| - Do checks on the i, k & m keyword parameters in <VALUE>. |
| - Fixed the test for repeated blanks in the NAXIS and WCSAXES |
| patterns. |
| - Fixed three <CCi_ma> rules to allow m == 0. |
| - Reworked the implementation notes in the prologue. |
| |
| - The flex scanners, fitshdr.l, wcsbth.l, wcspih.l, wcsulex.l, and |
| wcsutrn.l, invoke yylex_destroy() before returning to avoid a 16kiB |
| memory leak. This was reported by several people, however it may be |
| problematic depending on the version of flex used - version 2.5.9 or |
| later is required. If this is not available, C sources pre- |
| generated by flex 2.5.33 will be used. |
| |
| - In wcs.c, don't define the signbit macro if already defined (for |
| MacOSX). |
|
|
| - In wcs.h, documented wtbarr namespace issues in C++. |
|
|
| - In wcsset(), always set wcsprm.cunit[i], if possible (primarily for |
| use by wcshdo()). |
|
|
| - In wcsfix.c, parenthesised a boolean expression that was otherwise |
| incorrect. |
|
|
| - Fixed an obscure floating point rounding error in celset() that |
| appeared with -O2 optimization in gcc v3.3.5 (Linux). |
|
|
| - prjset() now correctly propagates the status value returned by the |
| specific projection-setting functions (reported by Bill Pence). |
|
|
| - Bug fix in hpxx2s(), also added bounds checking. Minor efficiencies |
| in carx2s() and merx2s(). |
|
|
| - In the various functions that print the contents of the structs, use |
| the "%p" printf conversion specifier to print addresses rather than |
| casting the pointer to int and using "#x". The latter does not work |
| on 64-bit machines where sizeof(int) != sizeof(void*). |
|
|
| - Reorganized the various structs to get alignment on 64-bit machines. |
|
|
| - All header file prologues now reference the README file for an |
| overview of the library. |
|
|
| - Miscellaneous portability fixes for 64-bit, MacOSX, OSF compiler, |
| etc. |
|
|
| - Elimination of compiler warnings, e.g. parenthesised assignments |
| used as truth values (a favourite gcc gripe!), etc. |
|
|
| - Process flex descriptions using a newer version of flex, primarily |
| for MacOSX. However, the processed files are now only used when |
| flex 2.5.9 or later is not available. |
|
|
| - Removed WCSLIB 2.x backwards-compatibility measures from lin.h, |
| prj.h, prj.c, and sph.h. |
|
|
| * Fortran wrappers |
|
|
| - (No substantive changes.) |
|
|
| * PGSBOX |
|
|
| - Miscellaneous improvements to PGSBOX. |
|
|
| * General |
|
|
| - Switched licensing to LGPL 3.0. |
|
|
| - In comment text, replaced use of the obsolete term "card" with |
| "keyrecord" which consists of a "keyword", "keyvalue", and |
| "keycomment". |
|
|
| * Installation |
|
|
| - General improvements to the installation process: autoconf-related |
| portability improvements, particularly relating to Fortran name |
| mangling; makefile rules for building the shared library, for |
| processing flex descriptions; don't rely on "." being in the PATH |
| when running tests. |
| |
| |
| WCSLIB version 4.2 (2005/09/23) |
| ------------------------------- |
| |
| * C library |
| |
| - Brought the installation process under control of GNU autoconf, |
| the top-level makefile now builds and tests everything, and the C |
| library has a config.h in which WCS_INT64 is set. Added an INSTALL |
| file. |
| |
| - Merged the FORTRAN, C and PGSBOX READMEs into one top-level README. |
| |
| - Extensions for -TAB coordinate handling: in tabx2s() and tabs2x(), |
| allow extrapolation by half a cell at either end of the index and |
| coordinate tables; fits_read_wcstab() (in getwcstab.{h,c}) allows |
| TDIMn to be omitted for 1-D lookup tables for which it has the form |
| '(1,K)', i.e. describing a degenerate 2-D array; wcsprt() now prints |
| the wtbarr structs in wcsprm. |
| |
| - Bug fixes for -TAB coordinate handling: in tabx2s() and tabs2x() |
| the incorrect indexing variable, m instead of i, was used for |
| tab->crval[]; wcsp2s() and wcss2p() returned prematurely in the |
| tabular coordinate loop; in wcstab(), removed an extraneous |
| assignment to wtbp->kind for index arrays. |
| |
| - In wcsp2s() and wcss2p(), elements of the stat[] vector that had |
| been set were being reset incorrectly to zero. The stat[] values |
| are now set as flag bits for each coordinate element. |
| |
| - Added cdfix() to the wcsfix() suite to fix erroneously omitted |
| CDi_ja cards. |
| |
| - PGSBOX is now compiled into a separate object library, and is |
| installed alongside WCSLIB. |
| |
| - Eliminated several instances of non-ANSI C library functions and |
| header files and some residual K&R C usage. The Sun C compiler |
| complained about const int definitions of initializers used in |
| variable declarations in some of the test programs; changed these |
| to preprocessor macros. |
| |
| * Fortran wrappers |
| |
| - Fixed handling of 64-bit integer keyvalues in keyget_(). |
| |
| - Fixed output formatting of 64-bit integer keyvalues in tfitshdr.f. |
| |
| - Fixed minor syntax errors in twcsfix.f and tpih1.f reported by the |
| Sun Fortran compiler. |
| |
| - The output of each test program now identifies the source file. |
| |
| * PGSBOX |
| |
| - (No substantive changes.) |
| |
| |
| WCSLIB version 4.1 (2005/08/31) |
| ------------------------------- |
| |
| * C library |
| |
| Summary of added functionality: |
| |
| - -TAB coordinate axes are now fully implemented in the WCSLIB driver |
| functions (in wcs.{h,c}); multiple -TAB axes are supported. A new |
| function, wcstab(), which is automatically invoked by wcspih(), |
| parses -TAB-related header cards and sets up structs for a separate |
| routine that reads the necessary arrays from a FITS binary table |
| extension. |
| |
| An implementation of this routine in CFITSIO, fits_read_wcstab(), |
| is provided. Note however that the interface of this function is |
| experimental, and the code itself must be considered beta-release in |
| WCSLIB 4.1. |
| |
| - Units specifications, either from CNAMEia or inline comments (with |
| brackets), of arbitrary complexity are now fully implemented via a |
| parser, wcsulex(), and converter, wcsunits(). This is invoked |
| automatically by wcsset(). |
| |
| - Translators for non-standard WCS constructs are provided. These |
| cover date formats, units specifications, defunct celestial |
| projection types, AIPS spectral axis types, and the repair of |
| malformed cylindrical coordinate systems. |
| |
| - wcspih() now has options to remove the WCS cards it has processed |
| from the header and a new generic FITS header parser, fitshdr(), may |
| be used to parse the remaining non-WCS cards. In addition to the |
| more basic types, it handles 64-bit and 'very long' (70 digit) |
| integer keyvalues, and also continued string keyvalues. It also |
| does keyword matching and extracts units specifications in inline |
| comments. |
| |
| - -LOG coordinates are now implemented independently of spectral |
| coordinate types. Multiple -LOG axes are supported. |
| |
| - New function wcssptr() translates the spectral axis in a wcsprm |
| struct to the required type. |
| |
| - The README file now gives an introduction to, and complete overview |
| of, WCSLIB. It provides a point of entry to programming with |
| WCSLIB. Complete descriptions and usage notes for all functions are |
| contained in the header files. |
| |
| - The FORTRAN wrappers and test programs are now completely up-to-date |
| with respect to the C implementation. |
| |
| - All code, including the FORTRAN wrappers, PGSBOX, and all test |
| programs, now pass 'purify' without memory leaks, uninitialized |
| memory reads, memory access violations, or other memory faults. |
| |
| Change notes: |
| |
| - Added options to wcspih() to remove WCS cards from the input header |
| leaving only non-WCS cards behind. Modified test programs tpih1.c |
| and tpih2.c to use CFITSIO optionally via preprocessor macro |
| DO_CFITSIO. |
| |
| - New function wcstab() in wcshdr.{h,c} parses -TAB-related header |
| cards and sets up structs for a separate routine that reads the |
| necessary arrays from a FITS binary table extension. New |
| test/demo program twcstab.c using header defined in wcstab.cards. |
| |
| - CFITSIO implementation, fits_read_wcstab() in getwcstab.{h,c}, of a |
| function, independent of WCSLIB, for extracting arrays from a binary |
| table as required in constructing -TAB coordinates. |
| |
| - New units specification parser, wcsulex() in wcsunits.h and |
| wcsulex.l, and converter, wcsunits() in wcsunits.{h,c}. New |
| test/demo program tunits.c. |
| |
| - New parser for non-standard units specifications, wcsutrn() in |
| wcsunits.h and wcsutrn.l, also tested by tunits.c. |
| |
| - New functions datfix(), unitfix() (which applies wcsutrn()), |
| celfix(), and spcfix() join cylfix() in wcsfix.{h,c} to translate |
| various forms of non-standard or quasi-standard FITS WCS keyvalues |
| in a wcsprm struct. wcsfix() applies all of these in sequence. |
| New test/demo program twcsfix.c, with wcsfix() also now invoked by |
| tpih1.c. |
| |
| - New generic FITS header parser, fitshdr() in fitshdr.{h,l}. New |
| test/demo program tfitshdr.c uses wcs.cards with extra non-WCS |
| cards added. |
| |
| - -LOG coordinates are now treated as a coordinate type separate from |
| spectral coordinates, implemented via log.{h,c} and test program |
| tlog.c. The logarithmic functions were removed from spx.{h,c}, and |
| spc.c. |
| |
| - Extensive changes to wcs.{h,c} to support multiple -TAB and -LOG |
| coordinate axes and units conversion. Substantially changed the |
| test program, twcs.c, to test the more general functionality. |
| |
| - New function wcssptr() in wcs.{h,c} translates the spectral axis in |
| a wcsprm struct. |
| |
| - Added DATE-AVG to wcsprm. Also ntab, tab, nwtb, and wtb required |
| for -TAB implementation. Define struct wtbarr. |
| |
| - Added a types[] member to the wcsprm struct to identify axis |
| coordinate types using a four-digit code. |
| |
| - Use memset() in wcsini() to null-fill character arrays in the wcsprm |
| struct so that they don't appear to be padded with garbage when |
| displayed by gdb. |
|
|
| - Do alias translation for AIPS-convention spectral types in wcsset() |
| using spctyp(). If wcsset() finds a CTYPEia in "4-3" form with an |
| unrecognized algorithm code it now returns an error rather than |
| assume that it's a linear axis. wcsset() now also resets lonpole |
| and latpole to the values actually used. |
| |
| - Modified spctyp() to translate AIPS-convention spectral ctypes, and |
| modified the argument list to return the parsed spectral type and |
| algorithm code. The return arguments will not be modified if |
| CTYPEia is not a valid spectral type; zero-pointers may be specified |
| for any that are not of interest. Removed the external const |
| variables, spc_codes and spc_ncode, as their function is now |
| fulfilled by spctyp(). |
| |
| - Fixed a bug in spctrn() in resolving ctypeS2 wildcarding. |
| |
| - Added latpreq member to the celprm struct, set by celset() to |
| indicate how LATPOLE is used. Augmented tcel2.c to report it. |
| |
| - New function tabmem() in tab.{h,c} takes control of user-allocated |
| memory. |
| |
| - tabini() allows K == 0 and also K[m] == 0 to initialize partially |
| the tabprm struct (for wcstab()). It now does fine-grained |
| bookkeeping of memory allocation for the index arrays and allocates |
| each individually. tabprm.index[] == 0x0 is recognized as default |
| indexing in tabset(), tabx2s() and tabs2x(). |
| |
| - The *prt() functions report parameters to an extra decimal place. |
| |
| - tabprt() prints the array index for elements of the coordinate and |
| index vectors. |
| |
| - Set the 0th element in all *_errmsg arrays to "Success". |
| |
| - Extracted string utility functions used by WCSLIB into |
| wcsutil.{h,c}. |
| |
| - Removed support for K&R C. |
| |
| * Fortran wrappers |
| |
| - The FORTRAN wrappers and test programs are now completely up-to-date |
| with respect to the C implementation. |
| |
| - New include files, wrappers, and test programs: |
| fitshdr.inc, fitshdr_f.c, getwcstab.inc, getwcstab_f.c, log.inc, |
| log_f.c, sph.inc, tab.inc, tab_f.c, tfitshdr.f, tlog.f, ttab1.f, |
| ttab2.f, ttab3.f, tunits.f, twcsfix.f, twcstab.f, wcsfix.inc, |
| wcsfix_f.c, wcsunits.inc, wcsunits_f.c. |
| |
| - Updates to reflect changes to the C library and test programs: |
| cel.inc, cel_f.c, prj.inc, spc.inc, spc_f.c, spx.inc, spx_f.c, |
| tlin.f, tpih1.f, tpih2.f, tprj1.f, tprj2.f, tspc.f, tsph.f, tspx.f, |
| twcs.f, twcsmix.f, twcssub.f, wcs.inc, wcs_f.c, wcshdr.inc, |
| wcshdr_f.c. |
| |
| - Added *_ERRMSG arrays containing status messages to all include |
| files. |
| |
| - Removed support for K&R C. |
| |
| * PGSBOX |
| |
| - Fixed a subtle though benign memory fault identified by 'purify'. |
| |
| - Reset LATPOLE in the COE example in cpgtest.f when drawing the |
| second (native) grid because it will have been set to a non-default |
| value by wcsset() when the first grid was drawn; set wcs.flag to -1 |
| before wcsinit() and call wcsfree() at the end. Similarly for |
| pgtest.f. |
| |
| |
| WCSLIB version 4.0 (2005/02/07) |
| ------------------------------- |
| |
| * C library |
| |
| - Implemented tabular coordinates (-TAB). New files: tab.h and tab.c, |
| and test programs ttab[123].c. These have not been incorporated |
| into the higher-level (wcs.h) functions at this stage. |
| |
| - New spectral functions: spchek() checks a spectral algorithm code |
| for legitimacy; from the spectral keywords given, spcspx() derives |
| the corresponding CRVALi and CDELTi keywords for the underlying P-, |
| and X-type spectral coordinates; spcxps() does the opposite; |
| spctrn() combines spcspx() and spcxps() to translate one set of |
| spectral keywords into another, e.g. 'FREQ' -> 'ZOPT-F2W'. |
| |
| - Implemented the HEALPix (HPX) projection in the prj functions. |
| |
| - Added a new function, wcsidx(), to return an array that indexes the |
| alternate coordinate descriptions found by wcspih() (suggested by |
| Bill Pence, NASA/Goddard). Modified tpih1.c to exercise it. |
| |
| - In wcsp2s() and wcss2p(), check that nelem equals or exceeds |
| wcs.naxis; emphasised this in the usage notes for these functions |
| in tab.h (suggested by Bill Pence, NASA/Goddard). |
| |
| - Moved the macros used for UNDEFINED values and the corresponding |
| macro test function, undefined(), to wcsmath.h for general use. |
| Previously, UNDEFINED values were only used internally, but they are |
| now visible in some of the structs, particularly values of undefined |
| auxiliary header cards in the wcsprm struct. |
| |
| - Remove const from the double args in the specx() prototype in spx.h |
| to match the definition in spx.c (reported by Bryan Irby, |
| NASA/Goddard). |
| |
| - Fixed the interaction between the FLAVOUR and PGPLOTLIB definitions |
| in the C and FORTRAN Makefiles by introducing a separate variable, |
| DO_PLOTS, to control whether to exercise test programs that require |
| PGPLOT (reported by Bill Pence, NASA/Goddard). |
| |
| * Fortran wrappers |
| |
| - New wrapper defined in wcshdr_f.c: wcsidx_(). Modified test program |
| tpih1.f to use it. |
| |
| * PGSBOX |
| |
| - (No substantive changes.) |
| |
| * General |
| |
| - Changed the copyright notice in all library routines from LGPL to |
| GPL as recommended by the FSF (http://www.gnu.org/licenses/why-not- |
| lgpl.html). |
| |
| * Installation |
| |
| - General improvements to the installation process: fixed the |
| interaction between the FLAVOUR and PGPLOTLIB definitions in the |
| Makefile by introducing a separate variable, DO_PLOTS, to control |
| whether to exercise test programs that require PGPLOT (reported by |
| Bill Pence, NASA/Goddard). Added an "install" target to the |
| Makefile. |
| |
| |
| WCSLIB version 3.6 (2004/08/25) |
| ------------------------------- |
| |
| * C library |
| |
| - New service routine, wcssub() extracts the coordinate description |
| for a subimage from a wcsprm struct. wcscopy() is now implemented |
| as a preprocessor macro that invokes wcssub(). New test program, |
| twcssub.c, tests wcssub(). |
| |
| - In wcspih(): |
| |
| 1) Fixed handling of string-valued keywords where the inline comment |
| contains a single-quote character ('). |
|
|
| 2) Fixed the address arithmetic for EPOCH and VELREF. |
|
|
| 3) Translate VSOURCEa into ZSOURCEa if required. |
|
|
| 4) Recognize SSYSSRCa. |
|
|
| 5) Support free-format string keyvalues, as well as integer and |
| floating-point keyvalues; documented this in the prologue of |
| wcshdr.h. |
|
|
| 6) Allow header cards without inline comments. |
|
|
| 7) Fixed function prototyping in wcspih.l (i.e. ANSI and non-ANSI |
| forms were potentially mixed). |
|
|
| 8) Catch an unhandled newline character on the END card that was |
| echoed to stdout. |
|
|
| 9) In error messages, print "ERROR" (uppercase) - POSIX standard. |
|
|
| - Modified wcs.cards to explain and test free-format keyvalues, and |
| also augmented the inline comment on illegal WCS cards that are to |
| be rejected, and WCS-like cards to be discarded. Added a header |
| card with no inline comment. |
|
|
| - Removed vsource from the wcsprm struct and added ssyssrc. |
|
|
| - In wcsini(), fixed a problem with memory management for wcs.pv when |
| NPVMAX is zero; likewise for wcs.ps and NPSMAX. |
|
|
| - In wcsprt(), don't print auxiliary coordinate system information in |
| arrays with zero address. |
| |
| - In wcss2p(), status == 9 (one or more invalid world coordinates) was |
| not returned appropriately. |
| |
| - Renamed twcs1.c to twcs.c, and twcs2.c to twcsmix.c. |
| |
| - "Error status/code/number" is now referred to consistently as the |
| "status return value". |
| |
| - Some vestiges of K&R C were removed: preprocessor definition of |
| const, and K&R function prototypes. |
| |
| * Fortran wrappers |
| |
| - New wrapper defined in wcs_f.c: wcssub_(). New test program, |
| twcssub.f. |
| |
| - Renamed twcs1.f to twcs.f, and twcs2.f to twcsmix.f. |
| |
| * PGSBOX |
| |
| - (No substantive changes.) |
| |
| * Installation |
| |
| - Worked over the C, FORTRAN, and PGSBOX makefiles, in particular to |
| make them all consistent. |
| |
| |
| WCSLIB version 3.5 (2004/06/28) |
| ------------------------------- |
| |
| * C library |
| |
| - WCSLIB now provides a function, wcspih() implemented as a Flex |
| description, that parses a FITS image header, either that of a |
| primary HDU or an image extension. Given a character array |
| containing the header it identifies and reads all WCS cards for |
| the primary coordinate description and up to 26 alternate |
| descriptions and returns this information as an array of wcsprm |
| structs. A service routine, wcsvfree(), is provided to free the |
| memory allocated by wcspih(). The relevant header file for these |
| functions is wcshdr.h. |
| |
| Test programs, tpih1 and tpih2, are provided to verify wcspih. The |
| first simply prints the contents of the structs using wcsprt(). The |
| second uses cpgsbox() to draw coordinate graticules. A FITS WCS |
| test header has been developed to provide input to these test |
| programs. It is implemented as a list of card images, wcs.cards, |
| one card per line, together with a program, tofits, that compiles |
| these into a valid FITS file. tpih1 uses its own code to read this, |
| whereas tpih2 uses the fits_hdr2str() function from CFITSIO. |
| |
| - Removed twcsprt, tpih exercises wcsprt() much more thoroughly than |
| twcsprt ever did. Modified twcs1 to print the size of the various |
| structs as twcsprt used to. |
| |
| - Although they are not used in any coordinate calculations, the |
| wcsprm struct now provides data members for storing all of the |
| auxiliary FITS WCS header cards defined in Papers I, II, and III, |
| such as WCSNAMEa, EQUINOXa, and CNAMEia. Members are also provided |
| for storing the alternate descriptor code (the "a" in CTYPEia), and |
| the binary table column number. These are supported by the high |
| level WCSLIB routines, wcsini(), wcscopy(), wcsfree(), and wcsprt(). |
| Refer to wcs.h for details. |
| |
| - The number of PVi_ma cards for which wcsini() allocates memory is |
| now set by a global variable, NPVMAX (previously a C-preprocessor |
| macro). This defaults to 64 but may be changed by a new function, |
| wcsnpv(). The wcsprm struct contains a new member, npvmax, that |
| records the value of this number at the time the struct was |
| initialized. This is in addition to npv which records the actual |
| number of cards that were encountered. |
| |
| Similarly, NPSMAX (default 8) is used for the number of PSi_ma |
| cards, and it may be changed via wcsnps(). |
| |
| The axis number, i, in the pvcard struct used for storing PVi_ma |
| cards may now be set to 0 to indicate the latitude axis. |
| |
| - calloc() is now used in place of malloc() in allocating memory for |
| arrays, and inclusion of malloc.h has been replaced with stdlib.h |
| for all platforms. |
| |
| wcsfree() checks that wcs.flag != -1 before testing wcs.m_flag when |
| freeing memory allocated by wcsini() in case the struct is |
| uninitialized. Similarly for linfree(). |
| |
| - In prj.h, renamed C-preprocessor macros INI, PRT, SET, X2S and S2X |
| to PRJINI, PRJPRT, PRJSET, PRJX2S and PRJS2X to reduce the |
| likelihood of namespace clashes. Similarly in spc.h. |
| |
| Also, in prj.c, changed the name of helper routine offset() to |
| prjoff() to reduce the likelihood of global namespace conflicts. |
| |
| - In line with bonx2s() and bons2x(), bonset() now recognizes the |
| equatorial case of Bonne's projection as Sanson-Flamsteed, mainly so |
| that the auxiliary information in the prjprm struct more accurately |
| reflects the truth. Modified tcel2 to exercise this by using an |
| equatorial Bonne projection in place of the Hammer-Aitov. |
|
|
| - zpns2x() used prj.w[0] for bounds checking, though this had not been |
| set by zpnset() for polynomials of degree N < 3. Consequently, |
| bounds checking for N < 3 was unreliable (reported by David Berry, |
| STARLINK). |
|
|
| - Changed some variable names in tscs2x(), cscx2s(), cscs2x(), |
| qscx2s(), and qscs2x() to match Paper II, and likewise changed some |
| inequality tests in qscs2x() without changing the results. |
|
|
| - Minor tidying up of output formatting in prjprt(). |
|
|
| - Added the alternate version code to FITS WCS keywords mentioned in |
| comments, e.g. CTYPEi changed to CTYPEia. |
|
|
| * Fortran wrappers |
|
|
| - New wrappers defined in wcshdr_f.c: wcspih_() and wcsvfree_(), and |
| also a new service function, wcsvcopy_(). |
|
|
| New test programs, TPIH1 and TPIH2, being analogues of tpih1 and |
| tpih2. Removed TWCSPRT. |
|
|
| - In wcs_f.c, new wrappers wcsnpv_() and wcsnps_(); modified wcsput_() |
| and wcsget_() to handle new members of the wcsprm struct. Also |
| modified wcsput_() to null-fill all char[] members of the wcsprm |
| struct, and likewise wcsget_() to blank-fill them. |
|
|
| - Modified wcs.inc to support changes to the wcsprm struct. |
|
|
| * PGSBOX |
|
|
| - In PGSBOX, increased the dimension of the WORLD and XY vectors from |
| 2 to 9 to accomodate higher-dimensional coordinate representations |
| of up to 9 elements. Similarly for pgwcsl(). The assumption |
| (presently) is that the first two world, and pixel, coordinate |
| elements are the relevant ones; the others are all set to zero when |
| pgwcsl() initializes and otherwise ignored. |
|
|
| Assigned some variables in DATA to stop compiler messages about |
| uninitialized variables. |
|
|
| - Generalized the Makefile, bringing it into line with the WCSLIB |
| Makefile, and adding separate targets for compiling and running the |
| test programs. The default target now simply compiles pgsbox.c and |
| cpgsbox.c. A separate target compiles pgwcsl.c and inserts it into |
| ../C/libwcs.a. |
|
|
|
|
| WCSLIB version 3.4 (2004/02/11) |
| |
|
|
| * C library |
|
|
| - In aitx2s(), apply the boundary condition 0.5 <= Z^2 <= 1 given |
| after Eq. (109) in WCS Paper II to detect outlying pixels. |
|
|
| - Fixed several special-case bugs in celset(): |
|
|
| 1) For theta_0 = 90, in substituting the default value for phi_p |
| (LONPOLE), |
|
|
| a) for the special case when delta_0 = 90, celset() provided the |
| wrong value (180 instead of 0), |
|
|
| b) celset() neglected to add phi_0 (normally 0). |
|
|
| 2) For theta_0 != 90, |
|
|
| a) for the special case when delta_0 = -90, celset() incorrectly |
| computed delta_p (as theta_0 instead of -theta_0), |
|
|
| b) for the special case when delta_p = +90 (or -90), celset() |
| neglected to subtract (or add) phi_0 (normally 0). |
|
|
| 3) For |delta_0| = 90, celset() incorrectly allowed the particular, |
| invalid, value of phi_p (LONPOLE) that put the other pole at the |
| fiducial point. |
|
|
| 4) For theta_0 = 0, delta_0 = 0 LATPOLE determines delta_p |
| completely. For LATPOLE > 90 celset() now sets delta_p to 90, |
| and for LATPOLE < -90 it sets it to -90. |
|
|
| - Additional refinements in celset(): |
|
|
| 1) cel->ref[2] is normalized in the range [-180,180]. |
|
|
| 2) Account for rounding error in the computation of delta_p. |
|
|
| - sphx2s() and sphs2x() incorrectly handled the "change in the origin |
| of longitude" special case that arises when delta_p = -90, in the |
| even more restrictive case where |theta| = 90 also; it applied |
| Eq. (3) instead of Eq. (4) of Paper II. |
|
|
| - Added a new test program, tcel2.c, to exercise celset() more |
| thoroughly. Renamed the original tcel.c to tcel1.c and modified the |
| Makefile to suit. |
|
|
| * Fortran wrappers |
|
|
| - (No changes.) |
|
|
| * PGSBOX |
|
|
| - (No substantive changes.) |
|
|
|
|
| WCSLIB version 3.3 (2003/10/21) |
| |
|
|
| * C library |
|
|
| - 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, STARLINK). |
|
|
| - 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. |
|
|
| * Fortran wrappers |
|
|
| - (No changes.) |
|
|
| * PGSBOX |
|
|
| - 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. |
|
|
|
|
| WCSLIB version 3.2 (2003/09/09) |
| |
|
|
| * C library |
|
|
| - Added the facility of setting the flag member of a wcsprm struct to |
| -1 before calling wcsini() for the first time in order to initialize |
| memory management. Likewise for linprm and linini(). |
|
|
| - Renamed wcscpy() to wcscopy() to avoid a conflict with the Posix |
| "wide character string" function of the same name (wchar.h). In |
| particular, this is used by the GNU C++ string class. |
|
|
| - The higher level functions (wcs, cel, spc) no longer return |
| prematurely if some of the input coordinate values are invalid. |
|
|
| - All functions now test whether a null pointer for the particular |
| struct (wcsprm, celprm, etc.) has been passed to them. |
|
|
| - Function return codes have been rationalized into a consistent set |
| within each of the wcs, cel, lin, prj, spc, and spx suites of |
| functions. Error messages to match these error codes are now |
| encoded in a single character array, e.g. wcs_errmsg and prj_errmsg, |
| instead of a separate array for each function. Macro definitions |
| for the older character arrays (e.g. wcsini_errmsg) have been |
| provided for backward compatibility. |
|
|
| - Declared prj_stat as extern in prj.h. |
|
|
| * Fortran wrappers |
|
|
| - (No changes.) |
|
|
| * PGSBOX |
|
|
| - Added an ENTRY point, PGLBOX, that provides a simplified interface |
| to PGSBOX for linear axes without having to specify an NLFUNC or the |
| associated parameters. |
|
|
|
|
| WCSLIB version 3.1 (2003/04/29) |
| |
|
|
| * C library |
|
|
| - Added "global" and "divergent" prjprm struct informational members |
| to record whether the projection is capable of mapping the whole |
| sphere, and whether it is divergent in latitude. |
|
|
| - Function cylfix() provided to fix WCS FITS header cards for |
| malformed cylindrical projections (c.f. Paper II, Sect. 7.3.4). |
|
|
| - Added support for CUNITi cards to wcsprm (but not currently |
| implemented). |
|
|
| - Added macro implementations of the trigd functions to wcstrig.h, |
| enabled if WCSTRIG_MACRO is defined. |
|
|
| - Improved printing of the WCSLIB structs. |
|
|
| - Added macro definitions for the lengths of the WCSLIB structs |
| measured in sizeof(int) units (mainly for the FORTRAN wrappers). |
|
|
| * Fortran wrappers |
|
|
| - FORTRAN is now supported via a set of wrappers on the C library. |
| Refer to the README file. |
|
|
| * PGSBOX |
|
|
|
|
|
|
| WCSLIB version 3.0 beta release (2003/04/01) |
| |
|
|
| * C library |
|
|
| - Fully vectorized function interfaces (C preprocessor macros are |
| available to implement the scalar interfaces of the proj.c, sph.c, |
| and lin.c routines from WCSLIB 2.x). |
|
|
| - Implementation of Paper II, Sect. 2.5: User-specified |
| (phi0, theta0). |
|
|
| - Implementation of Paper III (excluding "-TAB"). |
|
|
| - Memory management is now implemented in the upper-level (wcs.c) |
| routines. |
|
|
| - New extensible design should accomodate Paper IV (and any other) |
| without further change to the function interfaces. |
|
|
| * PGSBOX |
|
|
| - Added a C wrapper function, cpgsbox(), and C test/demo program, |
| cpgtest, that duplicates PGTEST and serves as a C coding template. |
|
|
| - Added calendar date axes. |
|
|
| - Sped up the max/min search - if only tickmarks are required there is |
| no need to search the interior of the image. |
|
|
| - Return margin widths in CACHE(,NC). |
|
|
| - Fixed a buglet that caused ticks at the frame edges to be skipped. |
|
|
| - Return error 3 if CACHE overflows. |
|
|
| - Adapted PGWCSL for WCSLIB 3.x - it is now a C function (for |
| interfacing to WCSLIB) with a FORTRAN-like interface (for PGSBOX). |
|
|
|
|
| WCSLIB version 2.9 (2002/04/03) |
| |
|
|
| * C library |
|
|
| - Fixed a bug with alias translation in wcsset(). |
|
|
| - Added a conditional compilation directive to lin.c for Apple's |
| MacOSX. |
| |
| * Fortran library |
| |
| - Fixed CUBEFACE handling in WCSSET. |
| |
| |
| WCSLIB version 2.8 (2001/11/16) |
| ------------------------------- |
| |
| * C library |
| |
| - Added support for the SZP projection with szpset(), szpfwd() and |
| szprev(), and generalized AZP with support for the tilt parameter, |
| gamma. |
| |
| - Added phi0 to the prjprm struct, this is set by the projection |
| initialization routines along with theta0. |
| |
| - Fixed a problem in wcsmix() caused by numerical imprecision that |
| could cause it not to recognize when convergence was reached; break |
| out of the loop early if a discontinuity is detected. |
| |
| - Clarified the usage of vspan in the prologue to wcsmix(). |
| |
| - Fixed comments relating to LATPOLE in the prologue to cel.c and |
| tcel.c, and replaced references to LONGPOLE with LONPOLE. |
| |
| - Augmented the error reports in twcs2. |
| |
| - Modified projex() in tproj1 and prjplt() in tproj2 to make use of |
| the information stored in the prjprm struct. |
| |
| * Fortran library |
| |
| - Added support for the SZP projection with SZPSET, SZPFWD and SZPREV, |
| and generalized AZP with support for the tilt parameter, gamma. |
| |
| - Changed the call sequence to PRJSET to return PHI0 along with |
| THETA0. |
| |
| - Fixed a problem in WCSMIX caused by numerical imprecision that could |
| cause it not to recognize when convergence was reached; break out of |
| the loop early if a discontinuity is detected. |
| |
| - Clarified the usage of VSPAN in the prologue to WCSMIX. |
| |
| - Fixed comments relating to LATPOLE in the prologue to CEL and TCEL, |
| and replaced references to LONGPOLE with LONPOLE. |
| |
| - Augmented the error reports in TWCS2. |
| |
| - Modified PROJEX in TPROJ1 and PRJPLT in TPROJ2 to use the generic |
| driver routines PRJSET, PRJFWD and PRJREV. PRJPLT also now uses the |
| projection type encoded in PRJ(11). |
| |
| |
| WCSLIB version 2.7 (2001/02/19) |
| ------------------------------- |
| |
| * C library |
| |
| - Added generic driver routines prjset(), prjfwd() and prjrev(). |
| These invoke specific projection routines via the pointer-to- |
| function elements, prjfwd and prjrev, transferred to the prjprm |
| struct from celprm. |
| |
| - Added code (3-letter projection code) and theta0 (reference |
| latitude) elements to prjprm. |
| |
| - The projection code for the Sanson-Flamsteed projection is now SFL. |
| The upper-level routines, wcsset(), wcsfwd(), and wcsrev(), |
| recognize GLS as an alias for this. |
| |
| - wcsset() now recognizes 'xyLN/xyLT' axis pairs. |
| |
| - Two bugs in the translation from NCP to SIN in wcsfwd() and wcsrev() |
| were fixed: (1) the projection parameter was computed incorrectly |
| and (2) they did not honour prj->flag set to -1 to disable strict |
| bounds checking. |
| |
| - A bug in wcsmix() was fixed - it was relying on the wcsprm struct to |
| have been initialized beforehand. |
| |
| - The test programs now use the cpgplot interface to PGPLOT, the old |
| tpgc.c and tpgf.f wrappers have been removed. |
| |
| * Fortran library |
| |
| - Added generic driver routines PRJSET, PRJFWD and PRJREV. These are |
| keyed to specific projection routines via the value of PRJ(11) which |
| now differs for each projection. |
| |
| - The projection code for the Sanson-Flamsteed projection is now SFL. |
| The upper-level routines, WCSSET, WCSFWD, and WCSREV, recognize GLS |
| as an alias for this. |
| |
| - WCSSET now recognizes 'xyLN/xyLT' axis pairs. |
| |
| - A bug in the translation from NCP to SIN in WCSFWD and WCSREV was |
| fixed; they did not honour PRJ(11) set to -1 to disable strict |
| bounds checking. |
| |
| - A bug in WCSMIX was fixed - it was relying on the WCS array to have |
| been initialized beforehand. |
| |
| |
| WCSLIB version 2.6 (2000/05/10) |
| ------------------------------- |
| |
| * C library |
| |
| - Check for invalid (x,y) in zearev(). |
| |
| - In wcsmath.h, guard against prior definition of PI and other |
| preprocessor variables. |
| |
| * Fortran library |
| |
| - Check for invalid (X,Y) in ZEAREV. |
| |
| - Declare COSD and SIND in WCSFWD and WCSREV, reported by Clive Page |
| (cgp@star.le.ac.uk). |
| |
| |
| WCSLIB version 2.5 (1999/12/14) |
| ------------------------------- |
| |
| * C library |
| |
| - Added copyright notice to header files and prefixed include guard |
| names with "WCSLIB_". |
| |
| - Fixed cube face handling in wcsfwd() and wcsrev() (reported by |
| Doug Mink, CfA). Allow more general face layout in the inverse |
| quadcube projections. |
| |
| - Fixed the problem in wcsmix() where it failed to find a valid |
| solution when the solution point lay at a native pole of a |
| projection in which the pole is represented as a finite interval. |
| However, wcsmix() will only ever return one solution even when two |
| or more valid solutions may exist. |
| |
| - wcsmix() now accepts viter in the range 5 - 10, the specified value |
| will be pushed up or down into this range if necessary. |
| |
| - The projection routines for AZP, TAN, SIN, ZPN, and COP now return |
| error 2 if (phi,theta) correspond to the overlapped (far) side of |
| the projection. This strict bounds checking can be switched off by |
| setting prj->flag to -1 (rather than 0) when the projections are |
| initialized. |
| |
| - The upper level routines, wcsset(), wcsfwd(), wcsrev(), and |
| wcsmix(), now recognize the NCP projection and convert it to the |
| equivalent SIN projection. The lower level routines do not |
| recognize NCP. |
| |
| - Extracted definitions of mathematical constants (PI etc.) from |
| proj.h into wcsmath.h in order to avoid conflicts with their |
| definition in math.h in some systems (such as Linux). |
| |
| - Describe the two alternate representations of the quadcube |
| projections (i.e. faces laid out or stacked) in the prologue of |
| wcs.c. |
| |
| * Fortran library |
| |
| - Fixed cube face handling in WCSFWD and WCSREV, reported by Doug Mink |
| (dmink@cfa.harvard.edu). Allow more general face layout in the |
| inverse quadcube projections. |
| |
| - Fixed the problem in WCSMIX where it failed to find a valid solution |
| when the solution point lay at a native pole of a projection in |
| which the pole is represented as a finite interval. However, WCSMIX |
| will only ever return one solution even when two or more valid |
| solutions may exist. |
| |
| - WCSMIX now accepts VITER in the range 5 - 10, the specified value |
| will be pushed up or down into this range if necessary. |
| |
| - The projection routines for AZP, TAN, SIN, ZPN, and COP now return |
| error 2 if (phi,theta) correspond to the overlapped (far) side of |
| the projection. This strict bounds checking can be switched off by |
| setting PRJ(11) to -1 (rather than 0) when the projections are |
| initialized. |
| |
| - The upper level routines, WCSSET, WCSFWD, WCSREV, and WCSMIX, now |
| recognize the NCP projection and convert it to the equivalent SIN |
| projection. The lower level routines do not recognize NCP. |
| |
| - Describe the two alternate representations of the quadcube |
| projections (i.e. faces laid out or stacked) in the prologue of |
| wcs.f. |
| |
| |
| WCSLIB version 2.4 (1996/09/23) |
| ------------------------------- |
| |
| * C library |
| |
| - In sinrev(), cscrev(), qscrev(), and tscrev(), return error 2 if |
| (x,y) do not lie within the perimeter of the projection. In |
| sinrev(), stop the computation of phi for the "synthesis" projection |
| being applied to the pure "orthographic" case (reported by |
| David Berry, STARLINK). |
| |
| - (Internal change) Renamed variables l <-> m in the quadcube |
| projections to accord with standard usage (and revised WCS draft |
| paper). |
| |
| * Fortran library |
| |
| - In SINREV, CSCREV, QSCREV, and TSCREV, return error 2 if (X,Y) do |
| not lie within the perimeter of the projection. In SINREV, stop the |
| computation of PHI for the "synthesis" projection being applied to |
| the pure "orthographic" case. Reported by David Berry |
| (dsb@ast.man.ac.uk). |
| |
| - (Internal change) Renamed variables L <-> M in the quadcube |
| projections to accord with standard usage (and revised WCS draft |
| paper). |
| |
| - (Internal change) Stopped PRJ(11) doing double service in any |
| projection. It is now set and tested for a specific magic value |
| rather than simply being non-zero. |
| |
| |
| WCSLIB version 2.3 (1996/06/24) |
| ------------------------------- |
| |
| * C library |
| |
| - Fixed two bugs in zpnset(). The first led to an incorrect |
| determination of the degree of the polynomial and would mainly have |
| affected the efficiency of zpnrev(). The second affected the |
| determination of the boundary of the projection but would only have |
| been significant for projections with a point of inflection between |
| 9 and 10 degrees of the pole. Reported by David Berry, STARLINK. |
| |
| - Replaced usage of alloca() in lin.c with malloc() and free() for |
| portability as suggested by Klaus Banse, ESO (kbanse@eso.org). |
| |
| - Allow for C implementations that provide their own versions of |
| cosd(), sind(), tand(), acosd(), asind(), atand(), and atan2d(). |
| From Klaus Banse, ESO (kbanse@eso.org). |
| |
| - Implemented the CUBEFACE axis for quadcube projections. |
| |
| - Made all function prototypes const-correct. |
| |
| - Adapted the header files to C++ usage. |
| |
| - Added a new test program, twcs1, to verify closure of wcsfwd() and |
| wcsrev(). The old twcs test program is now called twcs2. |
| |
| - Added external arrays of error messages indexed by function return |
| value. For example, extern const char *wcsmix_errmsg[] for |
| wcsmix(). Messages for the many proj.c functions are in |
| prjfwd_errmsg[], etc. |
| |
| * Fortran library |
| |
| - Implemented the CUBEFACE axis for quadcube projections. |
| |
| - Added a new test program, TWCS1, to verify closure of WCSFWD and |
| WCSREV. The old TWCS test program is now called TWCS2. |
| |
| |
| WCSLIB version 2.2 (1996/01/18) |
| ------------------------------- |
| |
| * C library |
| |
| - Amended the projection equations for the conics (COP, COD, COE, COO) |
| and Bonne's projection (BON) to correctly handle southern hemisphere |
| projections with PROJP1 < 0 (reported by Lindsay Davis, NOAO). |
| Revised tproj1 and tproj2 to test such cases. |
|
|
| * Fortran library |
|
|
| - Amended the projection equations for the conics (COP, COD, COE, COO) |
| and Bonne's projection (BON) to correctly handle southern hemisphere |
| projections with PROJP1 < 0 (reported by Lindsay Davis, NOAO). |
| Revised TPROJ1 and TPROJ2 to test such cases. |
| |
| - Increased the dimension of the WCS array from WCS(0:2) to WCS(0:3) |
| to allow for future handling of the CUBEFACE keyword - WCS(3) will |
| store an index to the CUBEFACE axis. This affects the call |
| sequences of WCSSET, WCSFWD, WCSREV, and WCSMIX. |
| |
| |
| WCSLIB version 2.1 (1995/11/17) |
| ------------------------------- |
| |
| * C library |
| |
| The main change of interest to programmers is that of changed argument |
| lists for wcsfwd() and wcsrev() as described below. |
| |
| - The WCS linear transformations are now implemented in WCSLIB, |
| complete with matrix inverter. The new files are lin.c, lin.h, and |
| test program tlin.c. |
| |
| - Given either the celestial longitude or latitude plus an element of |
| the pixel coordinate a new routine, wcsmix(), solves for the |
| remaining elements by iterating on the unknown celestial coordinate |
| element using wcsfwd(). |
| |
| - The high level driver routines wcsfwd(), wcsrev(), and wcsmix() now |
| apply the full WCS algorithm chain (except for pixel regularization |
| table), including parsing the CTYPEn header cards and computing non- |
| celestial elements of the world coordinate. This required a change |
| to their argument lists which now more closely reflect the sequence |
| of algorithms applied. A new routine, wcsset(), parses the CTYPEn. |
| |
| - The high level driver routines of WCSLIB 1.0 are available as |
| intermediate level drivers celset(), celfwd(), and celrev(), but |
| note that their argument lists have been extended to return native |
| coordinates. The related struct is now called celprm instead of |
| wcsprm. |
| |
| - The reference point for conic projections is now at the midpoint of |
| the standard parallels. The FITS header cards PROJP1 and PROJP2 now |
| give the half-sum (midpoint) and half-difference of the latitudes of |
| the standard parallels; previously they gave the latitudes of the |
| standard parallels themselves. The change is reflected in this |
| release of WCSLIB. |
| |
| - A bug in celset() (formerly wcsset()) that misapplied WCS draft |
| equations 7 has been fixed (thanks to Rick Ebert IPAC/JPL and |
| Lindsey Davis, NOAO for reporting this). This affected the |
| computation of Euler angles for the celestial coordinate |
| transformation for those projections that have their reference point |
| away from the native pole. In investigating this a deficiency with |
| the formalism was discovered that led to the introduction of a |
| LATPOLE FITS header card which may be used to disambiguate where |
| CRVAL1, CRVAL2, and LONGPOLE do not uniquely determine the latitude |
| of the native pole. The celprm struct (formerly wcsprm) has been |
| extended to accomodate LATPOLE. |
| |
| - Default values of LONGPOLE and LATPOLE are now supported and their |
| use is recommended where appropriate. |
| |
| - Numerical precision was being lost near the native poles in the SIN, |
| AIR, and QSC projections and this has been recovered (reported by |
| Lindsey Davis, NOAO). Floating underflows in CSC are now avoided. |
| |
| - Numerical precision was also lost in certain circumstances in the |
| spherical coordinate transformation routines and this has been |
| fixed. |
| |
| - The test programs have been enhanced in various ways and the library |
| has been validated on an SGI machine using both 32-bit and 64-bit |
| compilers. |
| |
| * Fortran library |
| |
| The main change of interest to programmers is that of changed call |
| sequences for WCSFWD and WCSREV as described below. |
| |
| - The WCS linear transformations are now implemented in WCSLIB, |
| complete with matrix inverter. The new files are lin.f and test |
| program tlin.f. |
| |
| - Given either the celestial longitude or latitude plus an element of |
| the pixel coordinate a new routine, WCSMIX, solves for the remaining |
| elements by iterating on the unknown celestial coordinate element |
| using WCSFWD. |
| |
| - The high level driver routines WCSFWD, WCSREV, and WCSMIX now apply |
| the full WCS algorithm chain (except for pixel regularization |
| table), including parsing the CTYPEn header cards and computing non- |
| celestial elements of the world coordinate. This required a change |
| to their call sequences which now more closely reflect the sequence |
| of algorithms applied. A new routine, WCSSET, parses the CTYPEn. |
| |
| - The high level driver routines of WCSLIB 1.0 are available as |
| intermediate level drivers CELSET, CELFWD, and CELREV, but note |
| that their call sequences have been extended to return native |
| coordinates. The related parameter array is now called CEL instead |
| of WCS. |
| |
| - The reference point for conic projections is now at the midpoint of |
| the standard parallels. The FITS header cards PROJP1 and PROJP2 now |
| give the half-sum (midpoint) and half-difference of the latitudes of |
| the standard parallels; previously they gave the latitudes of the |
| standard parallels themselves. The change is reflected in this |
| release of WCSLIB. |
| |
| - A bug in CELSET (formerly WCSSET) that misapplied WCS draft |
| equations 7 has been fixed (thanks to Rick Ebert IPAC/JPL and |
| Lindsey Davis, NOAO for reporting this). This affected the |
| computation of Euler angles for the celestial coordinate |
| transformation for those projections that have their reference point |
| away from the native pole. In investigating this a deficiency with |
| the formalism was discovered that led to the introduction of a |
| LATPOLE FITS header card which may be used to disambiguate where |
| CRVAL1, CRVAL2, and LONGPOLE do not uniquely determine the latitude |
| of the native pole. The CEL parameter array (formerly WCS) has been |
| extended to accomodate LATPOLE as CEL(4), and the flag variable is |
| now CEL(5) (formerly WCS(4)). |
| |
| - Default values of LONGPOLE and LATPOLE are now supported and their |
| use is recommended where appropriate. |
| |
| - Numerical precision was being lost near the native poles in the SIN, |
| AIR, and QSC projections and this has been recovered (reported by |
| Lindsey Davis, NOAO). Floating underflows in CSC are now avoided. |
| |
| - Numerical precision was also lost in certain circumstances in the |
| spherical coordinate transformation routines and this has been |
| fixed. |
| |
| - The test programs have been enhanced in various ways and the |
| library has been validated on an SGI machine using both 32-bit and |
| 64-bit compilers. |
| |
| |
| WCSLIB version 1.0 (1995/01/31) |
| ------------------------------- |
| |
| * C library |
| |
| Initial release. |
| |
| * Fortran library |
| |
| Initial release. |
| |
| ------------------------------------------------------------------------ |
| $Id: CHANGES,v 6.2 2018/10/20 10:03:14 mcalabre Exp $ |
| |
