SAOimage Release History

August 13, 1996 - Release 1.19 (Doug Mink, SAO)
------------------------
Fix many small bugs in WCS library; match to wcslib-1.1
wcs.c: Add more possibilities to simple WCS, including systemless
       coordinates which cannot be translated by j, b, or g keys

February 9, 1996 - Release 1.18 (Doug Mink, SAO)
------------------------
The Q key no longer exits from SAOimage when an image is being
displayed in IMTOOL mode.
Fix size problem with image pixel value in cursor tracking window
Switch display mode instead of printing for B, G, and J keys
Get rid of pipe error message if displaying an image from the
command line.
readiraf.c: Read arbitrary, rather than fixed-sized, IRAF image header
wcs.c: Add simple WCS if RA, DEC, and SECPIX (arcsec/pixel) keywords
       are in the header.  Assume north at top, east at left of image.

December 14, 1995 - Release 1.17 (Doug Mink, SAO)
------------------------
Add WCS tracking for IRAF images
readiraf.c: Add conversion to FITS header and WCS initialization
iraf2fits.c: New subroutine to convert IRAF headers to FITS headers
hput.c:  New subroutine to add parameters to FITS headers

November 7, 1995 - Release 1.16 (Doug Mink, SAO)
------------------------
platepos.c: Add 0.5 pixel offset between FITS image pixels and DSS plate
            pixels for more accurate astrometry from DSS plates. 
worldpos.c: Fix WCS bug when dealing with WFPC preview images which have
            horizontal declination and vertical right ascension. 


October 18, 1995 - Release 1.15 (Doug Mink, SAO)
------------------------
wcs.c: Add new subroutine, wcscent, to print image center and size so it is
       not automatically printed 
platepos.c: Fix RA,DEC ->image pixel subroutine so it works 
panwndw.c: Fix pan box to display images correctly 
prntcurs.c: Fix WCS check before printing WCS information 
readarr.c: Skip to correct image directly instead of fudging header length 
1. Improvements for VMS from Harry Payne at STScI 
2. Makefile for Linux from Peter Teuben at UMd 
3. Additional bug fixes from Jay Travisano at STScI 


August 18, 1995	- Release 1.14 (Doug Mink, SAO)
------------------------
wcs.c: Move wcs structure outside of file, but still allocate it with wcsinit() 
wcscon.c: New subroutine to convert between FK4, FK5, and galactic coordinates 
cmdparse.c: Add new commands to set coordinate system for cursor tracking 
mainkey.c: Add new commands to print cursor position in any coordinate system. 
mgfyctrl.c: Blank part of coordinate field if display length gets shorter 


May 5, 1995	- Release 1.13 (Doug Mink, SAO)
------------------------
platepos.c: Fix bug in DSS plate solution subroutine
readint.c:  Add Martin Bly's (Starlink) modification for 64-bit-long machines
hget.c:  Replace strstr() string search with faster homebrew version, strsrch()

1. Numerous bug fixes suggested by Corby Jacobs of STScI and Grant Privett of
   Starlink
2. Changes to make ANSI C compatible
3. Changes for port to native Solaris C


March 8, 1995   - Release 1.12 (Doug Mink, SAO)
-----------------------
platepos.c: compute WCS from Digital Sky Survey plate solutions
1. Major bug in DSS plate solution subroutine found May 3, 1995


January 20, 1995   - Release 1.11 (Doug Mink, SAO)
-----------------------
Add ability to handle narrow files which previously crashed SAOimage
when the pan box could not display them.


December 22, 1994   - Release 1.10 (Doug Mink, SAO)
-----------------------
Add use of CD matrix as an alternate to CDELT/CRROT WCS description


October 19, 1994   - Release 1.09 (Doug Mink, SAO)
-----------------------
Add World Coordinate System tracking

hget.c: extract parameter values from FITS headers
wcs.c: set of subroutines to initialize and format WCS information
worldpos.c: version of NRAO worldpos to compute WCS from pixel coordinates
prntcent.c: compute intensity-weighted center of 9x9 array around cursor
prntcurs.c: display WCS of cursor position


May 9, 1993   - Release 1.08 (Doug Mink, SAO)
-----------------------
Add linear autoscale base on histogram using -lfrac, fraction
Display floating point images on byte-reversed (i.e. DEC) machines correctly


August 26, 1994   - Release 1.07 (NOAO)
-----------------------
This was the last of several 1.07 releases
NOAO modifications for use as IMTOOL with IRAF


August 14, 1991	- Release 1.06 (Mike VanHilst, SAO)
------------------------
disppsct.c:	Generate EPS (Adobe v2.0), CDB

Known bugs:
1. Sizes for images being displayed with less than full resolution can
    be mis-calculated in some circumstances, resulting in an extra,
    non-image line at the bottom.
2. SAOimage is NOT X11 ICCCM compliant in the following areas:
  a. It does not use resources for defaults (i.e. background and border
    colors).
  b. No cut and paste mechanisms are supported
3. Massively zoomed tiny images may have coloring anomolies at the edges.


June 21, 1991	- Release 1.04 (Mike VanHilst, SAO)
------------------------
doc/manual.tex: Latex'd manual!
all makefiles:	Redone by NOAO for better porting
ctrlcntn.c:	Removed autoflush (bad for MIPS implementations)
mainevnt.c:	Fixed mask inconsistancy causing "bad file number" errors
hfiles/imtool.h:Some new IRAF support (alternate paths to fbconfig)
cmdimage.c cmdparse.c:
		Added + type switches where switch can toggle feature on/off.
hfiles/coord.h crdtemp.c dispbtmp.c dispdfse.c dispdthr.c disppxmp.c imgnew.c
mgfydraw.c sclctrl.c:
		Fixed numerous bugs for handling of very small images.
histlist.c:	Fix for infinite loop problem
btnlib/draw.c cmdparse.c wndwadj.c:
		#ifdef'd kludge switches buttons to ZPixmap format for
		ALLIANT server which does not display XYBitmap correctly.


Jan 1, 1991	- Release 1.03 (Mike VanHilst, SAO)
------------------------
csrcoord.c csrctrl.c csrdraw.c csrmove.c csrsave.c csrshape.c csrslct.c:
csrtext.c (new):
doc/cursor.txt doc/hardcopy.txt doc/region.txt:
editdraw.c:
mainkey.c mainslct.c:
panel/cursor.menu panel/menucsr.h:
rgnctrl.c rgnmake.c rgnread.c rgntoken.c rgnwpros.c:
		New features for labeling images - arrow and text cursors

clralloc.c:	Permits users with 4-5 plane machines to try color features
cmdimage.c:	Removed restrictions on file names starting with non-alpha
doc/manual.tex	The manual has been Latex'd! (see manual.dvi - 36 pages)
imgflip.c:	Fixed rotation of long or skinny images
imgnew.c:	Fixed load_mainbuf buffer zeroing
mainevnt.c:	Fixed non-portable #ifdefs
mgfydraw.c:	Fixed fatal magnifier bug (noticed by users of small images)
mgfyval.c:	Upgraded optimal output format algorithm
wndwconf.c wndwinit.c:	Match arg typing to new Xlib.h (ANSII C type warning)


May 1, 1990 - Release 1.0 (Mike VanHilst, SAO)
Changes from beta version:
------------------------
File names have all been shortened to an 8.3 (or smaller) format to enable
movement through MSDOS file systems.  A second button appearance is available.
Many internal code changes (to aid in debugging and support socket IO, to
name a couple).


June 3, 1990	- Release 1.02 (Mike VanHilst, SAO)
------------------------
sclctrl.c:	fixed bug which assigned wrong image type at init time
clralloc.c:	added colormap creation needed for OpenWindows and
		SiliconGraphics
wndwcre.c, editctrl.c: added ICCCM compliant focus message for window manager
cmdimage.c:	upgraded experimental real-time code
