File: ChangeLog

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#
#				ChangeLog
#
#%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
#
#	This file part of:	SWarp
#
#	Copyright:		(C) 2000-2010 Emmanuel Bertin -- IAP/CNRS/UPMC
#
#	License:		GNU General Public License
#
#	SWarp is free software: you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by
#	the Free Software Foundation, either version 3 of the License, or
# 	(at your option) any later version.
#	SWarp is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License for more details.
#	You should have received a copy of the GNU General Public License
#	along with SWarp. If not, see <http://www.gnu.org/licenses/>.
#
#	Last modified:		26/10/2010
#
#%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

------------------------------------------------------------------------
r95 | bertin | 2010-09-01 11:39:26 +0200 (Wed, 01 Sep 2010) | 3 lines

Added MJD-OBS (start of observations) to output FITS headers.
Pushed version number to 2.19.1.

------------------------------------------------------------------------
r94 | bertin | 2010-08-26 00:19:37 +0200 (Thu, 26 Aug 2010) | 7 lines

Rewrote astrometric flux rescaling code to solve problem with manual background
subtraction (thanks to D.G.Bonfield for reporting). Expect slight changes at the
1e-5 level for background-subtracted resampled pixels. The displayed background
values are now those of the original image.
Added RESCALE_WEIGHTS configuration switch (defaulted to Y). Setting
RESCALE_WEIGHTS to N turns off automatic weight and variance rescaling based on
the actual noise level measured in the image (thanks to J.Mohr and C.Mancone
for the suggestion).
Fixed (once again) the automatic centering and framing algorithm (thanks to
D.Murphy for reporting).
Updated links in README, ChangeLog and man page.
Increased default values for the MEM_MAX and COMBINE_BUFSIZE memory parameters
to 256MB.
Pushed version number to 2.19.0.

------------------------------------------------------------------------
r93 | bertin | 2010-07-20 13:23:20 +0200 (Tue, 20 Jul 2010) | 2 lines

Fixed TFORM error message in fitshead.c (thanks to S.Guieu).

------------------------------------------------------------------------
r92 | bertin | 2010-07-02 14:34:23 +0200 (Fri, 02 Jul 2010) | 2 lines

Removed redundant update_tab() calls.

------------------------------------------------------------------------
r91 | bertin | 2010-07-02 11:54:17 +0200 (Fri, 02 Jul 2010) | 2 lines

Fixed comment copy issue for slashes within strings (thanks to F.Schuller).

------------------------------------------------------------------------
r90 | bertin | 2010-05-21 16:23:28 +0200 (Fri, 21 May 2010) | 2 lines

Fixed syntax message (thanks to J.-B. Marquette).

------------------------------------------------------------------------
r89 | bertin | 2010-04-20 17:39:38 +0200 (Tue, 20 Apr 2010) | 2 lines

Added LICENSE to the .spec.in file, too.

------------------------------------------------------------------------
r88 | bertin | 2010-04-20 17:37:35 +0200 (Tue, 20 Apr 2010) | 2 lines

Added LICENSE to the list of EXTRA_DIST files.

------------------------------------------------------------------------
r87 | bertin | 2010-04-20 17:34:48 +0200 (Tue, 20 Apr 2010) | 2 lines

Added CeCILL version 2 license text and update COPYRIGHT information.

------------------------------------------------------------------------
r86 | bertin | 2010-02-22 14:54:59 +0100 (Mon, 22 Feb 2010) | 2 lines

Deactivated subtraction of the median background from saturation level if the
result is negative.

------------------------------------------------------------------------
r85 | bertin | 2009-09-10 19:32:33 +0200 (Thu, 10 Sep 2009) | 6 lines

Added --enable-auto-flags.
Added --enable-best-link configure option.
Added rpm-best option in Makefile.am.
Cleaned up configure file.
Pushed version number to 2.18.0.

------------------------------------------------------------------------
r84 | bertin | 2009-05-22 14:31:31 +0200 (Fri, 22 May 2009) | 3 lines

Added filtering of non-numerical characters for floating-point FITS keywords
(thanks to D.G. Bonfield for the suggestion).
Included Chiara's MissFITS fix in fitspick().

------------------------------------------------------------------------
r83 | bertin | 2009-04-28 19:27:03 +0200 (Tue, 28 Apr 2009) | 2 lines

Fixed bug in make_kernel() test bug (thanks to R.Owen).

------------------------------------------------------------------------
r81 | bertin | 2009-04-09 15:55:32 +0200 (Thu, 09 Apr 2009) | 3 lines

Fixed references to COPYRIGHT file.
Pushed version number to 2.17.6.

------------------------------------------------------------------------
r80 | bertin | 2009-04-01 18:48:34 +0200 (Wed, 01 Apr 2009) | 4 lines

Fixed icc 11 compilations options on x86-64 architecture.
Cleaned up obsolete references.
Added favicon to XSLT filter.

------------------------------------------------------------------------
r79 | bertin | 2009-04-01 14:42:31 +0200 (Wed, 01 Apr 2009) | 2 lines

Updated XSLT filter (AstrOmatic theme).

------------------------------------------------------------------------
r77 | bertin | 2009-03-23 18:20:20 +0100 (Mon, 23 Mar 2009) | 7 lines

Cleaned up Makefile.am RPM options.
Fixed rpm build issue on Fedora Core 10.
Fixed display of max thread number in configure help.
Updated icc compilation flags to 11.0 syntax.
Set the license string to CeCILL in the .spec file.
Pushed version number to 2.17.5.

------------------------------------------------------------------------
r76 | bertin | 2009-02-20 18:22:43 +0100 (Fri, 20 Feb 2009) | 3 lines

Fixed bug which would cause the mapping to depend on the ordering of PVs.
Pushed version number to 2.17.4

------------------------------------------------------------------------
r75 | bertin | 2009-01-12 17:55:07 +0100 (Mon, 12 Jan 2009) | 2 lines

Set doc to correct mime-type.

------------------------------------------------------------------------
r73 | root | 2009-01-09 17:25:25 +0100 (Fri, 09 Jan 2009) | 1 line

Changed trunk directory name
------------------------------------------------------------------------
r72 | bertin | 2008-12-16 19:23:32 +0100 (Tue, 16 Dec 2008) | 2 lines

Fixed version numbering issue.

------------------------------------------------------------------------
r71 | bertin | 2008-12-16 19:19:30 +0100 (Tue, 16 Dec 2008) | 2 lines

Added versioning of resampled filenames for duplicated input filenames (reported
by J.Mohr).

------------------------------------------------------------------------
r70 | bertin | 2008-12-05 10:30:36 +0100 (Fri, 05 Dec 2008) | 4 lines

Increased MAXINFIELD (max.number of input images) to 200,000 (was 100,000)
Increased MAXLIST (number arguments per option) to MAXINFIELD (was 256!)
Increased MAXLISTSIZE to (100*MAXLIST).

------------------------------------------------------------------------
r69 | bertin | 2008-12-02 12:16:19 +0100 (Tue, 02 Dec 2008) | 3 lines

Fixed image framing and flux scaling problem when mixing different lng and lat
axes (thanks to David G. Bonfield).
Pushed version number to 2.17.3.

------------------------------------------------------------------------
r68 | bertin | 2008-10-27 13:29:07 +0100 (Mon, 27 Oct 2008) | 2 lines

Fixed asymmetry of background filtering at image boundaries (thanks to P.Astier
and D.Hardin).

------------------------------------------------------------------------
r67 | bertin | 2008-10-01 19:09:35 +0200 (Wed, 01 Oct 2008) | 2 lines

Updated FITS library to the latest version.

------------------------------------------------------------------------
r66 | bertin | 2008-10-01 18:04:59 +0200 (Wed, 01 Oct 2008) | 3 lines

Fixed superfluous -static-intel LDFLAGS in new compiler optimization script.
Removed swarp-mp spec file (merged now with swarp.spec).

------------------------------------------------------------------------
r65 | bertin | 2008-10-01 16:45:42 +0200 (Wed, 01 Oct 2008) | 5 lines

Updated compiler autoconfiguration script.
Updated .spec RPM script.
Added rpm-icc target.
Version is now 2.17.2.

------------------------------------------------------------------------
r64 | bertin | 2008-02-06 15:20:53 +0100 (Wed, 06 Feb 2008) | 2 lines

Fixed issue with missing "@"lists (reported by H.J. McCracken).

------------------------------------------------------------------------
r63 | bertin | 2008-01-10 17:33:04 +0100 (Thu, 10 Jan 2008) | 2 lines

Fixed error in the y^2.x^4 PV monomial (found by R.Haigron & J.Guibert). 

------------------------------------------------------------------------
r62 | bertin | 2008-01-08 12:20:00 +0100 (Tue, 08 Jan 2008) | 3 lines

Fixed issue with multiple input files (only one would be considered).
Version number pushed to 2.17.1.

------------------------------------------------------------------------
r61 | bertin | 2008-01-07 15:46:53 +0100 (Mon, 07 Jan 2008) | 3 lines

Added description of FSCALASTRO_TYPE and @ syntax to doc.
Added sincos() support in interpolate_pix() (much faster with gcc, slightly
slower with icc).

------------------------------------------------------------------------
r60 | bertin | 2008-01-04 19:16:46 +0100 (Fri, 04 Jan 2008) | 4 lines

Fixed weighting in FSCALASTRO_TYPE VARIABLE mode.
Fixed CD transformation matrix in precessions.
Optimized the computation of interpolation kernels for Lanczos3 (speed +30%)
and Lanczos3 (speed +40%) using trigonometric polynomials.

------------------------------------------------------------------------
r59 | bertin | 2008-01-03 20:00:04 +0100 (Thu, 03 Jan 2008) | 4 lines

Added FSCALASTRO_TYPE VARIABLE mode to compensate for variable pixel scale on
exposures corrected for illumination.
Cleaned up code in FITSWCS library.
Version number pushed to 2.17.0.

------------------------------------------------------------------------
r58 | bertin | 2007-11-18 15:26:51 +0100 (Sun, 18 Nov 2007) | 5 lines

Added support for reading selected FITS extensions for all input images/maps
(e.g. image.fits[3] a la CFITSIO).
Added @lists support in all config-file and command-line arguments.
Removed .svn directories from source archive.
Pushed version number to 2.16.6.

------------------------------------------------------------------------
r57 | marmo | 2007-08-09 17:35:41 +0200 (Thu, 09 Aug 2007) | 1 line

headflag inherited by the output field.
------------------------------------------------------------------------
r56 | marmo | 2007-08-08 20:22:51 +0200 (Wed, 08 Aug 2007) | 1 line

XSLT style-sheet updated.
------------------------------------------------------------------------
r55 | bertin | 2007-07-17 12:39:40 +0200 (Tue, 17 Jul 2007) | 3 lines

Upgraded to the latest version of the FITS library.
Updated the THANKS.

------------------------------------------------------------------------
r54 | bertin | 2007-07-16 19:44:31 +0200 (Mon, 16 Jul 2007) | 3 lines

FITS cleanup bug (http://astromatic.net/forum/showthread.php?tid=236) fixed.
Effective gain is now computed properly when FSCALEASTRO_TYPE is FIXED
(http://astromatic.net/forum/showthread.php?tid=129).

------------------------------------------------------------------------
r53 | bertin | 2007-07-13 22:00:26 +0200 (Fri, 13 Jul 2007) | 5 lines

Temptative fix of the FITS cleanup bug
(see http://astromatic.net/forum/showthread.php?tid=236).
Updated doc.
Updated THANKS.
Hid GAIN and SATLEVEL config parameters.

------------------------------------------------------------------------
r52 | bertin | 2007-07-13 20:32:00 +0200 (Fri, 13 Jul 2007) | 5 lines

Fixed update date and a few details.
Included missing acx_urbi_resolve_dir.m4.
Removed acx_mpi.m4.
Updated to the last FITS library version.

------------------------------------------------------------------------
r51 | marmo | 2007-06-25 19:04:46 +0200 (Mon, 25 Jun 2007) | 1 line

computation of saturation level added.
------------------------------------------------------------------------
r50 | marmo | 2007-06-19 20:31:34 +0200 (Tue, 19 Jun 2007) | 1 line

rpm building generalised.
------------------------------------------------------------------------
r49 | marmo | 2007-06-19 19:19:15 +0200 (Tue, 19 Jun 2007) | 1 line

Akim Demaille macro for solving the  issue added
------------------------------------------------------------------------
r48 | bertin | 2007-06-08 16:12:01 +0200 (Fri, 08 Jun 2007) | 2 lines

Updated the documentation (about XML now written by default and image list
support).

------------------------------------------------------------------------
r47 | bertin | 2007-06-08 15:53:25 +0200 (Fri, 08 Jun 2007) | 2 lines

Added Akim Demaille's fix for absolute paths.

------------------------------------------------------------------------
r46 | marmo | 2007-06-08 15:34:19 +0200 (Fri, 08 Jun 2007) | 1 line

Error notification added
------------------------------------------------------------------------
r45 | bertin | 2007-06-08 15:05:30 +0200 (Fri, 08 Jun 2007) | 4 lines

Updated fits library modules to the latest version.
Updated release info files.
Pushed version number to 2.16.3 (release version).

------------------------------------------------------------------------
r44 | bertin | 2007-06-08 14:54:44 +0200 (Fri, 08 Jun 2007) | 3 lines

Added support for pseudo-3D image cubes (e.g. ISSA maps).
Added internal functions for future astrometric improvements.

------------------------------------------------------------------------
r43 | marmo | 2007-05-30 14:44:35 +0200 (Wed, 30 May 2007) | 1 line

all tables in xml file are now displayed.
------------------------------------------------------------------------
r42 | bertin | 2007-05-17 18:00:30 +0200 (Thu, 17 May 2007) | 2 lines

Fixed issue with ZPN and other projections by using the right latitude axis.

------------------------------------------------------------------------
r41 | bertin | 2007-04-03 17:59:05 +0200 (Tue, 03 Apr 2007) | 2 lines

Fixed swapping of CTYPEs for mixed longitude and latitude indices.

------------------------------------------------------------------------
r40 | bertin | 2007-04-03 14:31:36 +0200 (Tue, 03 Apr 2007) | 2 lines

Dirty-fixed ${datarootdir} issue in configure.

------------------------------------------------------------------------
r39 | bertin | 2007-04-02 19:00:00 +0200 (Mon, 02 Apr 2007) | 2 lines

Fixed issue occurring when longitude and latitude axes are mixed.

------------------------------------------------------------------------
r38 | marmo | 2007-03-28 15:09:03 +0200 (Wed, 28 Mar 2007) | 1 line

basic xslt stylesheet imported
------------------------------------------------------------------------
r37 | bertin | 2007-03-26 14:41:33 +0200 (Mon, 26 Mar 2007) | 6 lines

Added XSLT filter file (currently copied from the SCAMP XSLT filter).
Fixed XSLT filter path problem with RPM versions.
Added External_Header flag FIELD to XML-VOTable output.
Improved configure summary display.
Pushed version number to 2.16.1.

------------------------------------------------------------------------
r36 | bertin | 2007-03-08 09:58:16 +0100 (Thu, 08 Mar 2007) | 2 lines

Removed forgotten debug display,

------------------------------------------------------------------------
r35 | bertin | 2007-02-18 09:24:48 +0100 (Sun, 18 Feb 2007) | 2 lines

Fixed bug occuring while picking up integers in headers.

------------------------------------------------------------------------
r34 | bertin | 2007-02-08 21:04:16 +0100 (Thu, 08 Feb 2007) | 3 lines

Added new celsys_to_eq() and eq_to_celsys() functions to fitswcs library.
Fixed issue with automatic centering with galactic (or anything else) inputs and
equatorial outputs. 

------------------------------------------------------------------------
r33 | bertin | 2007-01-17 18:03:46 +0100 (Wed, 17 Jan 2007) | 2 lines

Added options for compiling with icc (Intel compiler).

------------------------------------------------------------------------
r32 | bertin | 2006-10-29 21:07:01 +0100 (Sun, 29 Oct 2006) | 3 lines

Applied patch by Sergio Pascual for configuring the path to the XSL file.
Updated the TODO section.

------------------------------------------------------------------------
r31 | bertin | 2006-10-26 18:08:24 +0200 (Thu, 26 Oct 2006) | 4 lines

Updated FITS library to the latest version.
Fixed UCDs in XML output.
Finalized support for file lists.

------------------------------------------------------------------------
r30 | marmo | 2006-10-25 18:59:54 +0200 (Wed, 25 Oct 2006) | 1 line

input as image list enabled
------------------------------------------------------------------------
r29 | bertin | 2006-09-19 15:29:39 +0200 (Tue, 19 Sep 2006) | 2 lines

Removed residual debugging info.

------------------------------------------------------------------------
r28 | bertin | 2006-09-19 15:27:21 +0200 (Tue, 19 Sep 2006) | 2 lines

Fixed bug with COPY_KEYWORDS option on some specific headers.

------------------------------------------------------------------------
r27 | bertin | 2006-08-10 18:40:17 +0200 (Thu, 10 Aug 2006) | 3 lines

Typo in preference list fixed.
This is the 2.16 release.

------------------------------------------------------------------------
r26 | bertin | 2006-08-09 20:12:58 +0200 (Wed, 09 Aug 2006) | 5 lines

Added Equinox and COOSYS FIELDs to VOTable output.
Fixed various issues in the propagation of astrometric and photometric metadata.
Updated the documentation.
Changed the version number to 2.16: we are go for the release!

------------------------------------------------------------------------
r25 | bertin | 2006-08-08 20:17:11 +0200 (Tue, 08 Aug 2006) | 4 lines

Fixed graph matrix overflow in image combine routine.
Removed counting of more than one extension per file in the displayed number of
overlaps.
Added estimate of maximum exposure time and maximum effective gain in FITS and
XML meta-data outputs.

------------------------------------------------------------------------
r24 | bertin | 2006-08-05 20:06:24 +0200 (Sat, 05 Aug 2006) | 2 lines

Optimized the COMBINE buffer allocation by finding the real maximal clique by
using the recursive algorithm of Bron & Kerbosch (1971): typical gain ~ 50%.

------------------------------------------------------------------------
r23 | bertin | 2006-08-02 22:04:55 +0200 (Wed, 02 Aug 2006) | 3 lines

Fixed serious co-addition bug for framed output FOVs.
Removed useless access to images outside the output frame during co-addition.

------------------------------------------------------------------------
r22 | bertin | 2006-08-01 23:00:44 +0200 (Tue, 01 Aug 2006) | 3 lines

Fixed issues with image combining with RESAMPLE N.
Fixed (invisible) floating exception occuring during image combining.

------------------------------------------------------------------------
r21 | bertin | 2006-07-27 21:29:03 +0200 (Thu, 27 Jul 2006) | 6 lines

Added/Fixed several elements in XML output.
Added BLANK_BADPIXELS option to blank output pixels with a weight of zero.
Added "naive" total exposure time calculation.
Increased background buffer size to 8MB.
Doc: added BLANK_BADPIXELS keyword description and fixed typos in gain
computation.

------------------------------------------------------------------------
r20 | bertin | 2006-07-26 20:29:05 +0200 (Wed, 26 Jul 2006) | 5 lines

XML VOTable output implementation now complete (checked validity and
compliance).
Added stdout output of XML using XML_NAME STDOUT option.
Pushed the limit for keyword length to 32 chars.
Doc: Updated to 2.16, with info about XML output options.

------------------------------------------------------------------------
r19 | bertin | 2006-07-26 11:47:29 +0200 (Wed, 26 Jul 2006) | 2 lines

Corrected a typo that would prevent the code to compile on Macs.

------------------------------------------------------------------------
r18 | bertin | 2006-07-25 22:52:52 +0200 (Tue, 25 Jul 2006) | 2 lines

Further progress with the XML-Votable output (note: "ct" units replaced with
"adu" units).

------------------------------------------------------------------------
r17 | bertin | 2006-07-25 16:00:31 +0200 (Tue, 25 Jul 2006) | 2 lines

Added automatic detection of the number of CPUs on BSD, HP/UX and IRIX systems.

------------------------------------------------------------------------
r16 | bertin | 2006-07-24 20:47:56 +0200 (Mon, 24 Jul 2006) | 2 lines

Further progress on the XML metadata config dump.

------------------------------------------------------------------------
r15 | bertin | 2006-07-21 21:09:26 +0200 (Fri, 21 Jul 2006) | 3 lines

Further progress on the XML output.
Added a follow-up of celestial types through field structures.

------------------------------------------------------------------------
r14 | bertin | 2006-07-20 22:01:53 +0200 (Thu, 20 Jul 2006) | 5 lines

Cleaned up configure.ac (removed obsolete options).
Added XML VOTable output support files.
Added error catching routines.
Added XML VOTable support (not finished, deactivated for now).

------------------------------------------------------------------------
r13 | bertin | 2006-07-19 19:41:42 +0200 (Wed, 19 Jul 2006) | 3 lines

Added CELESTIAL_TYPE SUPERGALACTIC option.
Cleaned up default configuration file dump.

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r12 | bertin | 2006-07-19 18:14:38 +0200 (Wed, 19 Jul 2006) | 5 lines

Updated ChangeLog.
Relaxed binary table identification checks.
Fixed coordinate system transformation bug (detected on Gal<->Eq).
Added support for supergalactic coordinate system.

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r11 | baillard | 2006-07-18 13:55:53 +0200 (Tue, 18 Jul 2006) | 2 lines

Move swarp to public repository

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r10 | bertin | 2006-07-17 20:02:20 +0200 (Mon, 17 Jul 2006) | 4 lines

Added ICRS support (but no conversion to older systems yet).
Updated the FITS library to the latest version (adds warning history, error
catching and fixes pointer aliasing compilation warnings). 
Updated WCS routines to the latest version (TNX multithreading and polynomial
bugfixes).

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r9 | bertin | 2006-06-08 17:32:31 +0200 (Thu, 08 Jun 2006) | 2 lines

Fixed a bug that would make config arguments limited to 496 chars
(see http://astromatic.net/forum/showthread.php?tid=14).

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r8 | bertin | 2006-03-12 18:56:52 +0100 (Sun, 12 Mar 2006) | 2 lines

Updated ChangeLog and HISTORY files.

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r7 | bertin | 2006-03-12 18:36:29 +0100 (Sun, 12 Mar 2006) | 2 lines

Replaced make with make -j to speed up the RPM building process.

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r6 | bertin | 2006-03-11 22:41:55 +0100 (Sat, 11 Mar 2006) | 3 lines

Fixed segfault with too long arguments.
Version number pushed to 2.15.7.

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r5 | bertin | 2006-01-31 17:13:07 +0100 (Tue, 31 Jan 2006) | 2 lines

Removed a forgotten 'printf("coucou\n")' in fitscleanup.c ...

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r4 | bertin | 2006-01-31 17:10:52 +0100 (Tue, 31 Jan 2006) | 2 lines

Added additional checks to resampling boundaries to prevent crash in case of
buggy astrometric solutions.

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r3 | marmo | 2005-11-12 19:11:47 +0100 (Sat, 12 Nov 2005) | 1 line

fixed the bug on single weight image mode
------------------------------------------------------------------------
r2 | bertin | 2005-10-17 16:53:55 +0200 (Mon, 17 Oct 2005) | 1 line

-------------------------------- old ChangeLog --------------------------------
Who     When            Where(mostly)   What

EB      13/03/2001      useprefs()      Allow Weighting when input weight-maps
                                        are missing.

EB      15/03/2001      coadd_pix()     Provide a specific handling of the
                                        weights when n=2 in COMBINE_TYPE
                                        MEDIAN mode.

EB      09/04/2001      make_back()     Fixed a bug with weight-maps in
                                        large-image mode.

EB      01/08/2001      coadd_pix()     Fixed a weighting bug in MEDIAN mode.

EB      06/08/2001      -               Reorganize files and directories on the
                                        MissFITS model.

EB      10/08/2001      -               Added support for header_only and
                                        resample_only modes.

EB      13/08/2001      write_wcs()     Fixed a small bug that would cause
                                        the RADECSYS keyword to be written
                                        twice in the header.
                        header.c        Added read/write support for COMIN
                                        and COMAX custom FITS keywords.

EB      07/03/2002      makeit()        Make the identification of non-image
                                        FITS data more strict for ambiguous
                                        headers.

EB      16/03/2002      resample.c      New module extracted from coadd.c
                        resample.h      New include for resample.c

EB      18/03/2002      -               Added multithreading to resampling
                                        routine (compile with -DUSE_THREADS
                                        option).

EB      08/06/2002	printinfo_field()
                                        Astrom/Photom displayed flux scale was
                                        inversed.
EB      09/06/2002      read_aschead()  Make header parsing less strict.
                        resample_field()
                        frame_wcs()     Fixed problem with images outside the
                                        output frame.

EB      11/06/2002      resample_field()
                                        Fixed pthread_mutex_destroy() bug on
                                        Alpha.
                        field.c         New display of external header info.

EB      13/06/2002      -               Removed config.h from define.h and
                                        included explicitely in all sources

EB      14/06/2002      -               Added off_t type explicitely in
                                        fseek()s and ftell()s. KINGSIZE_T type
                                        added in the fits library to support
                                        large files.

EB      15/06/2002      coadd_fields()  Fixed memory bug for images completely
                                        outside the output frame.

EB      17/07/2002      fitswcs.c       Added wcs_dist() function and field
                                        radius measurement (copied from SAM).

EB      24/07/2002      wcs_dist()      Fixed a units bug.

EB      29/09/2002      load_weight()   Fixed WEIGHT_FROMRMSMAP bug.
                        coadd_fields()  Removed normalization of output
                                        weights.
EB      08/10/2002      init_field()    Make the sign of longitude increment
                                        negative in automatic framing.
                        writefitsinfo_field()
                                        Fixed FITS header bug in WRITE_FILEINFO
                                        mode with input weight-maps
                        main()          Changed banner.
EB      28/11/2002      init_field()    Fixed bad propagation of longitude
                                        increment sign.
                        define.h        COPYRIGHT Slightly modified.
                        configure.in    Allow NTHREADS>1 in monothreaded build.
                        use_prefs()     Warning added.

EB      10/01/2003      interpolate_pix()
                                        linecount[n] was not initialized.

EB      18/01/2003      range_wcs()     Fixed scaling sign bug for
					non-spherical projections

EB      10/04/2003      coadd_pix()
                        fast_median()   Activate a faster version of the
                                        median for co-addition.
EB      17/04/2003      resample.c      New multithreaded code.

EB      18/04/2003      init_field()    Handled properly case with CENTER_TYPE
                                        MANUAL and IMAGE_SIZE 0.
                        make_kernel()   Optimized Lanczos kernel computations.

EB      19/04/2003      fast_median()   Optimized further.

EB      20/04/2003      prefs.h         Fixed missing galactic coord support.
                        load_field()
                        init_field()    Added support for PIXEL celestial type.

EB      21/04/2003      -               Added propagation of FITS keywords.
                        addkeywordto_head()
                                        Fixed bug when adding COMMENTs
                        fitswrite()
                        fitspick()      Improved handling of H_STRINGS comments

EB      28/04/2003      coadd_pix()     Optimized code.
                        -               Added opt. support for INTEL math lib.
                        resample_field()
                                        Changed temp. weight naming convention.

EB      03/07/2003      threads.c       New modules with macro functions to
                                        make multithreading easier.
	
EB      09/07/2003      coadd.c         Completely rewrote the co-addition
                                        code. Better optimisation and multi-
                                        threading added.

EB      09/07/2003      lin.c           Replaced the <memory.h> include with an
                                        <stdlib.h>

EB      04/08/2003      threads.c       Made code compilation optional.

EB      15/08/2003      -               Small fixes to avoid gcc  -Wall
                                        warnings.
                        addhistoryto_cat()
                                        date in HISTORY has now dd/mm/YYYY
                                        format

EB      16/08/2003      -               Added HAVE_GETENV configure flag.
                        header.c        Replaced getpwuid() with
                                        getenv("LOGNAME")
                        main()          Produce a more concise --version
                                        output.

EB      18/08/2003      coadd_fields()  Weight-map corruption bug fixed.

EB      20/08/2003      field.c         Removed obsolete #includes.

EB      17/10/2003      -               Made COPYSIGN and SIGNBIT conditions
                                        the default in wcslib.

EB      20/10/2003      -               Removed additional gcc -Wall warnings.

EB      21/10/2003      coadd_line()    Set output pixel to one of the input
                                        values when all input weights are zero.

EB      26/10/2003      range_wcs()
                        invert_wcs()    Fixed bug in step increment.
                        fitswcs.*       Updated to the latest SCAMP version.

EB      28/10/2003      write_wcs()     Fixed bug when writing PVs.

EB      05/11/2003      read_body()
                        read_fitsbasic()
                        interpolate_pix()
                        backstat()
                        convert_data()  Added support for BLANKed pixels.

EB      06/11/2003      invert_wcs()
                        range_wcs()     Extended the automatic min and max
                                        WCS limits of a field to pixel borders.
                        read_body()     Fixed NaN detection.

EB      09/11/2003      convert_data()
                        read_fitsbasic()
                        backstat()      Fixed BLANKing bugs in WEIGHTED mode.

EB      16/11/2003      -               Added PROJECTION_ERR keyword and new
                                        "approximated astrometry" mode.

EB      19/11/2003      init_field()    Positioned headerflag for output field.

EB      20/11/2003      fitswcs.c
                        makeit()
                        init_field()    Added support for heterogeneous axis
                                        labeling.
EB      21/11/2003      makeit()
                        load_field()
                        load_weight()   Reduced memory usage with MEFs.

                        projapp_init()  Removed warning for small images.

EB      22/11/2003      coadd_movewdata()
                                        Copy first pixel value in output image
                                        if all weights are 0.

EB      24/11/2003      warp_line()     Fixed a HUGE bug in resampling!!!

EB      28/11/2003      tnx.c           Broken TNX support rehabilitated.

EB      20/12/2003      warp_line()     Fixed projection bug with oversampling.

EB      04/01/2004      raw_to_pv()     Fixed bug for polynoms >= 4th degree.

EB      06/02/2004	coadd_line()	Fixed bug with COADD_CHI2.

EB      28/04/2004      scale_field()   Fixed BZERO scaling bug.

EB      06/11/2004      range_wcs()     Fixed auto-limits with all-sky images.

EB      17/11/2004      fitsutil.c      Update + replaced %e by %E format.
                        makeit()
                        main()          Improved display (time, # of threads..)
                        read_aschead()  Fixed header corruption bugs with
                                        crippled .head lines.
                        read_prefs()    Added automatic NTHREADS on systems
                                        with sysconf(_SC_NPROCESSORS_ONLN).

EB      18/11/2004      read_aschead()  Removed debug info left by mistake
                                        Improved robustness of header reading
                        configure.ac    Removed icc/gcc duplicated options.

EB      05/12/2004      swarp.tex       Fixed a few confusing equations.

EB      09/12/2004      makeit()        Fixed a long standing bug: weights
                                        were not scaled with the flux scale.

EB      10/12/2004      -               New .spec files and rpm handling
                                        (cross-compiling now possible on
                                        x86_64).
                        back.c
                        back.h          Replaced long's by int's.

EB      26/04/2005      FITS library    Upgraded to the latest version.

EB      27/04/2005      makeit()        Fixed segfault with Nextensions > 8182.

EB      28/04/2005      coadd_line()    Added support for summation.

EB      20/06/2005      fitswcs.c       Upgraded to the latest version.

EB      21/06/2005      coadd.c         Fixed segfault and positioning pb
                                        in RESAMPLE N mode.

EB      22/06/2005      init_field()    Force sexagedecimal input order to
                                        lng,lat

EB      24/06/2005      makeit()        Dropped reaxe_wcs() for lng>lat

EB      19/07/2005      init_field()    Fixed non-integer CRPIXs in automatic
                                        IMAGE_SIZE mode.
                        dumpprefs()     Added support for "deep dump".

EB      20/07/2005      makeit()        Fixed a huge bug introduced while axing
                                        reaxe_wcs()...
                        -               Replace Postscript version of doc with
                                        PDF file.

EB      15/09/2005      pthread_nextline()
                                        Fixed long-standing line-swapping bug
                                        in multi-threaded mode.

CM      12/11/2005      useprefs()      Propagate duplicate weight-map in case
                                        of multiple input images.

EB      31/01/2006      interpolate_pix()
                                        Added additional boundary check to
                                        prevent bogus astrometric solutions
					from crashing SWarp.

EB      11/03/2006      prefs.c         Allow very long arrays of strings to
                                        be given as arguments to swarp.