## Funtools ChangeLog

This ChangeLog covers both the Funtools library and the suite of applications. It will be updated as we continue to develop and improve Funtools. The up-to-date version can be found here. [The changelog for the initial development of Funtools, covering the beta releases, can be found here.]

## Patch Release 1.4.6 (internal ds9 release)

- Upgrade wcssubs to version 3.8.7

- Port to mingw (Windows)

## Patch Release 1.4.5 (internal ds9 release)

- Fixed bug in funim.c which broke vcol functionality.

- Removed permission checking from Find() on cygwin systems. This was broken by Windows 7.

- Removed addition of -no-cpp-precomp flag from gcc 4.2 and beyond.

## Patch Release 1.4.4 (internal ds9 release)

- Fixed -J funcone, which was not properly outputting all rows.

- Filter: when an image is flipped, the rotation angle must be reversed.

- Filter: add support for windows-based ipc communication when using tcc compiler.

## Patch Release 1.4.3 (internal ds9 release)

- Filter: improve checks for existence of compiler, even if CC is set.

- Change launch.h to xlaunch.h to avoid conflict with OS X.

- handle flipped images in filtering

## Patch Release 1.4.2 (internal ds9 release)

- Port to gcc 4.2.

- Fix 1-byte filters on intel machines (missing SW1 no-op).

- Remove ambiguity from filt.l (and calc.l) using [A-z] in a case-insensitive lexer.

- In funsky, the default unit for RA was changed from hours to degrees.

- Fixed bug in funtable in which TCRVL header values were output as strings.

- Added support for running funtools filters in Rosetta (i.e. running PPC executables on an Intel Mac) by sensing and handling data swap requirements. Only works with FILTER_PTYPE set to 'c' (can't link against wrong architecture libraries).

- Fixed bug in FITS library to allow "-" in extension names.

- Code and documentation now agree that the copy extension specifier ('+') comes after the extension name.

## Patch Release 1.4.1 (internal ds9 release)

- Modified internal Launch() routine to use posix_spawn(), if necessary. This is required for OS X 10.5 (leopard), which frowns upon use of fork() and exec(). Also modified zprocess routines to use Launch().

## Public Release 1.4.0 (15 August 2007)

- Public release of production-quality code, incorporating changes and improvements from previous beta releases, including:
  - Support for access to ASCII text column files.
  - Support for fast indexed access of binary tables.
  - Support for database views of tables, i.e. pre-set values for the filter specification, the columns to activate, and display format.
  - New programs include funcone (cone search), funindex (create index files), and funcen (calculate centroids within regions).

## Release 1.3.0b[n] (mainly internal SAO beta releases)

- Added -F[c] switch to change the column delimiter to the specified character.

- Extended fundisp's format switch (-f) so that it can now handle complex formats such as 'x=sometext%3d- y=othertest%3d.ext'.

- Added support for creating and processing 1D FITS images.

- Added vcol=colname and vcol=/colname to filter specifications to support use of a third value column when binning 2D images.

- Added switches to funcone to write out data rows are not within any cone (-J, -X) and centers which have no close data rows (-L).

- In funjoin, added ability to specify a numeric tolerance for when joining two files.

- shared memory support in gio now can create a shared segment if w+ is specified as the open mode.

- Changed reggeometry man page so that examples correctly show angles going counter-clockwise from the x-axis instead of from the y-axis.

- Added checks to funmerge to ensure that all files have the same columns.

- Fixed bug in text support that prevented header-less files from being processed properly.

- Added support for 64-bit images (bitpix=64) and table columns (TFORM=K).

- Filter code was not applying bscale/bzero to columns.

- Fixed funimage bug that caused a .5/block error in WCS CRPIX values generated from binary tables.

- Added feq(a,b) and div(a,b) macros to funcalc.

- Added support for single-line #define to funcalc.

- Updated wcs library to 3.6.6

- Fix bug in funcen in which ra,dec was not being calculated correctly if physical and image coords did not match up.

- The filter syntax "col1 = col2" now explicitly generates an error (you really want to do "col1 == col2").

- Added -o switch to include offset from the nominal target position.

- Fundisp now displays multi-dimensional vector columns properly.

- Documented support for lists of files processed as a single file using "list: file1 ... filen" syntax.

- Fixed bugs in support for pipe file type (i.e. ability to pass commands as a filename using "pipe: cmd arg1 ... argn" syntax).

- Fixed bug in funhist processing of image-based pixel histograms (i.e using "xy" for columns) where a region was specified. All pixels outside the region were erroneously being added to the bin containing the 0 value.

- Disabled multi-file processing in funds9, which was breaking support for pathnames containing spaces and is not used by ds9 anyway.

- Added support for Views of tables, i.e. pre-set values for the filter specification, the columns to activate, and display format (though the latter is for fundisp only).

- Added -l switch to funimage to read x, y, val columns from a list.

- Removed useless and meaningless section syntax foo'[*]' because it breaks pointer de-referencing on string columns (i.e. foo'[*xxx=='a']'). Use foo'[*,*]' instead, as documented.

- String variables were not always being terminated properly in the filter code because FITS 'A' data is not necessarily null-terminated.

- Added funtools version number to all usage() displays.

- Added explanation of switch arguments to many usage() displays.

- The filter keyword row# now supports single row selection as well as range selection, i.e., "row#=100" along with previous "row#=100:200".

- fundisp now outputs "0x" before hex values.

- Fixed bug in filter parser which processed rangelists incorrectly if spaces were put into the rangelist (i.e. "pha= 1 : 3" instead of pha=1:3).

- Fixed a bug in funindex which created a wrongly named index file if more than one "." was in the input file name.

- Added support to funcone to take ra, dec, radius from a list (i.e. columns in a FITS file or a text file).

- Fixed a bug in FunColumnActivate so that if some columns are explicitly activated while others are de-activated, only the explicitly activated columns are activated (code was activating all columns in this case).

- Fixed a bug in funindex which prevented indexing tables containing a column named N.

- fundisp now encloses ASCII column values in single quotes (unless -T is specified to output RDB format).

- If a filter specification only involves indexed columns, then the compiled filter is not used.

- Funmerge can now be given a list of files to merge using @list syntax. Also removed the restriction on how many files can be merged (was limited to the max number of open files).

- Added ability to edit (add, delete, modify) header parameters in funhead by specifying an output file (editing acts as a filter) and an edit command file (which can be stdin).

- Funtools now contains preliminary code to support (fast) indexed access of binary tables. See idx.html or "man funidx" for more details.

- Funtools now contains preliminary code supporting access to ASCII column files. See text.html or "man funtext" for more details.

- Fixed bug in funcalc in which columns used in an expression were always being replaced by new columns, with all associated parameters (e.g. WCS) were being deleted. Now this only happens if the column explicitly changes its data type.

- Fixed bug in funcalc in which the raw data and user data became out of sync for one row after every 8192 (FUN_MAXROW) rows.

- Fixed bug in gio in which gseek returned 0 instead of the current byte offset for disk files.

- Added funcone program to perform cone search on RA, Dec columns in a FITS binary table.

- Fixed bug in polygon, pie and rotated box region filtering for tables (nearby rows exactly in line between two non-vertical or non-horizontal vertices were being accepted incorrectly).

- Fixed pie and panda regions so that the angles now start from positive x axis == 0 degrees and run counter-clockwise, as documented. They were going from positive y. NB: a similar change was made to ds9 release 4.0b3. You must be using ds9 4.0b3 or later in order to have the correct behavior when generating regions in ds9 and using them in funtools.

- Added -p [prog] switch to funcalc to save the generated program. instead of executing (and deleting) it.

- Upgraded zlib to 1.2.3.

## Patch Release 1.2.4 (internal SAO and beta release only)

- In funcalc, added support for user-specified arguments via the -a [argstr] switch. These arguments are accessed in the compiled program using the supplied ARGC and ARGV(n) macros.

- Added -n (no header display) to fundisp to skip outputting header.

- Added checks for various types of blank filters.

- Added macros NROW (current row number) and WRITE_ROW (write current row to disk) to funcalc.

- funcalc no longer requires that at least one data column be specified in the compiled expression.

- Added FUN_NROWS to FunInfoGet() to return the total number of rows in an input table (i.e. value of NAXIS2).

- The compiled funcalc program now includes stdlib.h and unistd.h.

- The util/NaN.h header file is now modified at configure time to contain endian status for the target architecture. References to specific platforms have been removed.

- Added -m switch to funtable to output multiple files, one for each input region (and a separate file for events that pass the filters but are not in any region).

- Added ability to add new parameters (FunParamPutx) after writing data if space is previously reserved in the form of a blank parameter whose value is the name of the param to be updated. (Also requires the append argument of FunParamPutx be set to 2).

- Added ability to build shared libraries. With --enable-shared=yes, shared library is built but not used. With --enable-shared=link, shared library is linked against (requires proper installation and/or use of LD_LIBRARY_PATH).

- Added -v [column] support to funcnts so that counts in a table can be accumulated using values from a specified column (instead of the default case where an integral count is accumulated for each event in a region).

- Added funcen program to calculate centroids within regions (binary tables only). Also added support for a funcen-based centroid tool to funtools.ds9.

- Fixed bug which prevented successful filtering of columns containing arrays.

- Added filter check to ensure that a column is not incorrectly used as an array.

- Fundisp now displays column arrays indexed from 0, not 1.

- Added -i [interval] support to funcnts so that multiple intervals can be processed in a single pass through the data. For example, specifying -i "pha=1:5;pha=6:10;pha=11:15" will generate results in each of 3 pha bands.

- Fixed calculation of LTV quantities when binning floating point column data (value was off by 0.5).

- Added support for 'D' in floating point header values.

- Added -a switch to funimage and funtable to append output image or table to an existing FITS file (as an IMAGE or BINTABLE extension).

- Added support for column scaling (TSCAL and TZERO) on input columns. Note that the default column type is changed to accommodate scaling (e.g. a column of type 'I' is changed to 'J', 'J' is changed to 'D') so that the scaled values can be handled properly by programs such as fundisp (which utilize default types).

- Added support to FunColumnSelect() for handling structs of arrays (i.e. where returned columns are contiguous) instead of the default array of structs (returned row are contiguous). This is done by specifying "org=structofarrays" in the plist and passing a single struct containing the arrays.

- When writing an rdb/starbase file, fundisp now outputs the full column name, regardless of the width of the column (which ordinarily is truncated to match).

- Fixed support for large files by changing all file positions variables from "long" declarations to "off_t.

- Fixed bug in funcalc incorrectly processed multiple array references (e.g. cur->foo[0]=cur->x;cur->foo[1]=cur->y;) within a single line of code.

- Added FILTER_CFLAGS environment variable for all filtering. Also added --with-filter-cc and --with-filter-cflags options on configure to allow specification of a default C compiler and associated CFLAGS for filtering. All of this is necessary in order to support 64-bit libraries under Solaris.

- Added the funtbl script to extract a table from Funtools ASCII output.

- Added code to funimage to update IRAF DATASEC keyword.

- Added checks to ensure that image dimensions are positive.

- Fixed a bug in funimage where int data was being scaled using BSCALE and BZERO but these keywords also were being retained in the output image header. Now the data are not scaled unless the output data type is float (in which case the scaling parameters are removed).

- Fixed a bug in funmerge which prevented merging of files unless one of the -f, -w, or -x switches were used.

- Fixed a bug in funtable and fundisp which caused the special '$n' column to be output incorrectly.

- Fixed sort option in funtable, which previously worked only if the record size was an even divisor of 8192 (and returned garbage otherwise).

- Fixed bug in filters involving FITS data type 'X' (bitfield).

- Fixed bug in funcnts in which the output angles and radii were being displayed incorrectly when multiple panda shapes were specified.

- Fixed bug in pandas and pies using n= syntax when first angle specified was greater than second. The resulting mask was of the correct shape but contained only a single region.

- Table row access routines will now decrease maxrows if memory cannot be allocated for maxrows*sizeof(row), i.e. if the size of a row is so large that space for maxrows cannot be allocated.

- The FUN_MAXBUFSIZE environment variable was added to limit the max buffer size that will be allocated to hold table row data. The default is 5Mb.

- Generated PostScript and PDF versions of the help pages.

- Moved OPTIONS section before (often-lengthy) DESCRIPTION section in man pages.

- All memory allocation now does error checking on the result (except wcs library, which is external code).

- Removed some compiler warnings that surfaced when using gcc -O2.

- Updated wcs library to 3.5.5.

- Upgraded zlib to 1.2.1.

## Patch Release 1.2.3 (12 January 2004)

- Generated man pages from the html pages. These are installed automatically at build time.

- Changed instances of sprintf() to snprintf() to protect against buffer overflow.

- Fixed a number of compiler warnings in non-ANSI compilers.

- Increased SZ_LINE parameter value from 1024 to 4096.

## Patch Release 1.2.3b1 (19 August 2003)

- The rule for using comma to separate a table filter expression and a region expression has been changed. The rule now states:
  - if both expressions contain a region, the operator used is or.
  - if one (or both) expression(s) does not contain a region, the operator used is and.
  This rule handles the cases of pure regions and pure column filters properly. It unambiguously assigns the boolean and to all mixed cases. Thus:

        foo.fits[circle(10,10,3),pi=1:5]

  and

        foo.fits[pi=1:5,circle(10,10,3)]

  both are equivalent to:

        foo.fits[circle(10,10,3) && pi=1:5]

- When include files are used in filters, they now have implied parentheses surrounding them. Thus, if a region file foo.reg contains two regions (e.g. circle 1 2 3 and circle 4 5 6), the syntax:

          pha=4:5&&@foo.reg

  is equivalent to:

          pha=4:5 && (circle 1 2 3 || cir 4 5 6)

  instead of:

          pha=4:5 && circle 1 2 3 || cir 4 5 6

  and the pha filter is applied to both regions.

- Filters and comments now can be terminated with the string literal "\n" as well as ";" and the new-line character. This means that a region can have comments embedded in it:

          funcnts foo.fits "circle 512 512 10 # color=red\n circle 512 512 20"

- Added capability to update the value of an existing parameter after writing the table or image (assuming the output image is a disk file or is being redirected into a file).

- Improved handling of parentheses in filter expressions.

- Fixed a bug in image (not event) regions in which circles and annuli with radius of 1 pixel were not being processed. No counts and no area would be found in such regions.

- Fixed a bug in funcnts in which the radii column values for out of sync if multiple annuli were specified (instead of a single varargs or accel annulus).

- By default, fundisp will display integer image data as floats if the BSCALE and BZERO header parameters are present.

- Added -L switch to funhead to output starbase list format.

- Changed the name of the routine _FunColumnSelect to FunColumnSelectArr, in order to emphasize that it is not a private routine.

- Funcalc now checks to ensure that a column was specified as part of the expression.

- Funcalc local variables in the compiled program now use a "__" prefix to avoid conflicts with user-defined variables.

- Unofficial unsigned short (bitpix=-16) image data now is scaled correctly using BSCALE and BZERO header parameters.

- Ported to Intel icc and gcc 3.3 compilers.

- Updated wcs library to 3.5.1.

- Changed license from public domain to GNU GPL.

## Patch Release 1.2.2 (18 May 2003)

- Fixed funcalc so that it now actually compiles an expression and runs it, instead of getting a "filter compilation error". Oops!

- Fixed bug in FunOpen in which the bracket specification was being removed from the filename if a disk file was opened for "w" or "a".

- Fixed bug in FunFlush which prevented two successive calls to FunImagePut from writing the second extension header properly.

- All filter routines now use gerror(stderr, ...) call instead of fprintf(stderr, ...) so that output to stderr can be turned off (via setgerror(level) or GERROR environment variable).

- All standard Funtools programs check for GERROR environment variable before setting gerror flag.

- Some error messages about invalid region arguments were not being printed.

- FITS parameters/headers now conform more closely to FITS standard:
  - Blank keywords are treated in the same way as COMMENTS and HISTORY cards
  - XTENSION keywords are now exactly 8 characters long
  - 'E' is output instead of 'e' in floating point param values
  - PCOUNT and GCOUNT are output correctly for image extensions
  - EXTEND=T is output in primary header
  - COMMENTS and HISTORY start in column 9

## Patch Release 1.2.1 (24 April 2003)

- Varargs ellipse and box annular regions were being processed incorrectly when the following conditions all were met:
  - the region was specified in physical or wcs coordinates
  - the data file contained LTM/LTV keywords, i.e., it was blocked with respect to the original data file
  - the program being run was an image program (e.g. funcnts, funimage)
  Varargs ellipse and boxes are regions of the form:

        ellipse x y a1 b1 a2 b2 ... an bn [angle]
        box x y l1 w1 l2 w2 ... ln wn [angle]

  where at least 2 sets of axis (length) values were specified to form an annulus (i.e. simple ellipses and boxes worked properly). With all of the above conditions met, a region in physical coordinates saw its second length argument converted incorrectly from physical coordinates to image coordinates. In simple terms, this means that funcnts did not process elliptical or box regions in physical coords on blocked images properly. Note that blocking on the command line (e.g. foo.fits[*,*,2]) did work when no LTM/LTV keywords existed in the file.

- The fundisp -f switch now supports specification of column-specific display formats as well as a more convenient way to specify datatype-specific display formats. Both use keyword=value specifiers. For columns, use:

          fundisp -f "colname1=format1 colname2=format2 ..." ...

  e.g.

          fundisp -f "time=%13.2f pha=%3d" ...

  You also can specify display formats for individual datatypes using the FITS binary table TFORM variables as the keywords:

          fundisp -f "D=double_format E=float_format J=int_format etc."

  e.g.

          fundisp -f "D=%13.2f I=%3d" ...

  The old position-dependent syntax is deprecated.

- Fundisp will now print out a single 16-bit (or 32-bit) unsigned int for a column whose data format is 16X (or 32X), instead of printing 2 (or 4) unsigned chars.

- Fixed bug in which fundisp was not able to display bitfield data for raw event lists.

- Previously, when binning columns used implicitly in a region and explicitly in a filter could suffer from a case sensitivity problem. This has been fixed.

- Fixed internal mask=all switch on fundisp.

- Filter include files now simply include text without changing the state of the filter. They therefore can be used in expression. That is, if foo1 contains "pi==1" and foo2 contains "pha==2" then the following expressions are equivalent:

          "[@foo1&&@foo2]" is equivalent to "[pi==1&&pha==2]"
          "[pha==1||@foo2]"  is equivalent to "[pi==1||pha==2]"
          "[@foo1,@foo2]" is equivalent to "[pi==1,pha==2]"

- Fixed bug in filter specification which caused a SEGV if a varargs-style region was enclosed in parens.

- Updated wcs library to 3.3.2.

## Public Release 1.2.0 (24 March 2003)

- BSCALE and BZERO are now always applied to int pixel data, instead of only being applied if the desired output is floating point.

## Beta Release 1.2.b3 (4 February 2003)

- In FunColumnSelect, added the ability to specify an offset into an array in the type specification, using the extended syntax:

       [@][n]<type>[[poff]][:[tlmin[:tlmax[:binsiz]]]]

  The [poff] string specifies the offset. For example, a type specification such as "@I[2]" specifies the third (i.e., starting from 0) element in the array pointed to by the pointer value. A value of "@2I[4]" specifies the fifth and sixth values in the array.

- Added a non-varargs version of FunColumnSelect called _FunColumnSelect:

      int _FunColumnSelect(Fun fun, int size, char *plist,
                           char **names, char **types, char **modes, int *offsets,
                           int nargs);

- Added support for sorting binary tables by column name using: funtable -s "col1 col2 ... coln" ...

- Added the FUN_RAW macro which, when applied to the "name" parameter of FunParamGets(), returns the 80-character raw FITS card instead of only the value.

- Added support for comparing column values with binary masks of the form 0b[01]+, e.g.:

        (status&0b111)==0b001

  Previously, such masks had to be specified in decimal, octal, or hex.

- Completed support for type 'L' (logical) in fundisp and in filtering of binary tables.

- Fixed bug in funhist that was improperly setting the number of bins when the data was of type float.

- Fixed bug in filter/Makefile where the filter OBJPATH #define was being passed to the wrong module.

## Beta Release 1.2.b2 (7 October 2002)

- Updated wcs library to 3.1.3.

- Added support for reading gzip'ed files via stdin.

## Beta Release 1.2.b1 (24 September 2002)

- Added the following accelerators to region filtering:

        shape:      arguments:
        -----       ---------
        BOX         xcenter ycenter xw1 yh1 xw2 yh2 ... xwn yhn (angle)
        BOX         xcenter ycenter xwlo yhin xwout yhhi n=[number] (angle)
        CIRCLE      xcenter ycenter r1 r2 ... rn              # same as annulus
        CIRCLE      xcenter ycenter rinner router n=[number]  # same as annulus
        ELLIPSE     xcenter ycenter xw1 yh1 xw2 yh2 ... xwn yhn (angle)
        ELLIPSE     xcenter ycenter xwlo yhin xwout yhhi n=[number] (angle)

- Added the following new pandas (Pie AND Annulus) to region filtering:

        shape:    arguments:
        -----     ---------
        CPANDA    xcen ycen ang1 ang2 nang irad orad nrad  # same as panda
        BPANDA    xcen ycen ang1 ang2 nang ixlo iylo ixhi iyhi nrad (ang) # box
        EPANDA    xcen ycen ang1 ang2 nang ixlo iylo ixhi iyhi nrad (ang) # ellipse

- Added support for filtering images using simple FITS image masks, i.e. 8-bit or 16-bit FITS images where the value of a pixel is the region id number for that pixel (and therefore must be greater than 0). The image section being filtered must either be the same size as the mask dimensions or else be an even multiple of the mask. This works with image-style filtering, i.e., funcnts can utilize a mask on both images and binary tables.

- Added '$n' to fundisp column specification to allow display of ordinal value of each row passing the filter.

- Added code to support region filtering on image sections.

- Fixed bugs which prevented filtering more than one ASCII region file.

- Fixed bug occasionally causing filter slave processes to become zombies.

- Fixed bugs in event filtering: annulus with inner radius of 0 (i.e., a circle) was rejecting events with coordinates xcen, ycen. Also, pie with angles of 0 and 360 was rejecting some events. Image filtering (e.g. funcnts) did not have these problems.

- Filters now accept global exclude regions without an include region. In such a case, the field region is implied. That is, "-circle(x,y,r)" is equivalent to "field; -circle(x,y,r)", etc.

- Fixed panda so that it can be used as a global exclude.

- Allow empty ds9 region file (comments and globals only) to be a valid filter. Totally ignore zero length region or include file.

- Fixed funcnts bug that was displaying 0 value as inner radius of a circle, instead of just one radius value.

## Public Release 1.1.0 (22 April 2002)

New features include:

- Funtools programs now accept gzip'ed files as valid input.

- Improved security via replacement of system() function.

- fundisp, funcnts, funhist can output starbase/rdb format (tabs between columns, form-feeds between tables).

- Improved support for Windows platform, as well as new support for Mac OSX.

## Pre-Release 1.1.0e (10 April 2002)

- Added enough support to skip over variable length arrays in BINTABLES. We will add full support if this non-standard construct becomes more widely used.

- Fixed bug in underlying fitsy _gread() routine that was returning an arbitrary bytes-read value if the input fd was invalid.

## Pre-Release 1.1.0e (19 March 2002)

- Added additional check for Windows/PC to filter/Nan.h.

- Upgraded zlib library to 1.1.4 (fix double free security hole).

## Pre-Release 1.1.0e (27 February 2002)

- Changed filter/process.[ch] to filter/zprocess.[ch] to avoid name collision with Cygwin include file.

- Added -a switch to funhead to display all headers in a FITS file.

## Pre-Release 1.1.0e (11 February 2002)

- Fixed filter parser so that it ignores ds9 "ruler" and "text" markers only up to the first \n or ; (was ignoring to last \n).

- The NBLOCK parameter in fitsy/headdata.c was too large for Mac OS X (max size of a declared char buf seems to be about .5 Mb).

## Beta Release 1.0.1b5 (31 January 2002)

- Fixed bug introduced in calculated IRAF LTM values in 1.0.1b3.

- Fixed bug in filter parser giving wrong answers when two range lists were combined with and explicit boolean operator:

        $ fundisp $S"[x=512&&y=511,512]"

  incorrectly acted like:

        fundisp $S"[(x=512&&y=511)||(y=512)]"

  instead of:

        fundisp $S"[x=512&&(y=511||y=512)]"

  In general, we recommend use of explicit parentheses.

- Fixed filter/NaN.h to recognize Compaq Alpha again (broken by their last change to cc).

- Removed redundant varargs definitions that conflicted with Alpha compiler definitions.

- Added blank line to inc.sed to work around Apple Mac OS X bug in which the "i" (insert) command was treating final \\ as continuation \ in the text.

- Added include of mkrtemp.h to mkrtemp.c to get conditional compilation for Mac OSX.

- Added support for --with-zlib to fitsy so that ds9 could use its own copy of zlib (and not build the copy in fitsy).

- Removed config.cache and Makefile files from distribution tar file.

## Beta Release 1.0.1b4 (26 January 2002)

- Make explicit that column filters are not permitted in an image expression (such as the funcnts region arguments).

- Fix bug in region parser in which a region (without parens), followed immediately by an operator:

        circle 512 512 .5&&pi==1

  was not processing the final argument of the region correctly.

- Ignore new "tile" directive in filters (used by ds9).

## Beta Release 1.0.1b3 (4 January 2002)

- Made modifications to Makefile.in to make releases easier.

- Added instructions Makefile.in so that funtools.h will always have correct #defines for FUN_VERSION, FUN_MAJOR_VERSION, FUN_MINOR_VERSION, and FUN_PATCH_LEVEL.

- Allow #include statements in funcalc program files.

- funimage now updates all 4 CDX_Y values by the block factor.

- Minor changes to make funtools work under darwin (Mac OS X).

## Beta Release 1.0.1b2 (14 November 2001)

- Fixed FunOpen() bug (introduced in b1) in which filenames without extensions SEGV'ed on open. Yikes!

- Funmerge now extends the tlmin/tlmax values of the output binning columns so that merged events from widely separated files are valid in the output table.

- In funhist, added -w switch to specify bin width (lo:hi:width) instead of number of bins (lo:hi:num). Added support for this new width option in funtools.ds9.

- If a tdbin value was set using bincols=(name:tlmin:tlmax:tdbin, ...), the WCS parameters were not being updated properly.

- Cleaned up build support for zlib.

## Beta Release 1.0.1b1 (6 November 2001)

- Added support for gzip'ed files to the underlying fitsy/gio library. This means that all funtools programs now accept gzip'ed files as valid input:

        funcnts foo.fits.gz "circle 504 512 10"

  It is no longer necessary to run gunzip and pipe the results to stdin of a funtools program.

- Funtools tasks are now placed in a sub-menu in the DS9 Analysis menu, instead of at the top level.

- Fixed a bug in funcnts in which the bottom-most pixel of a small circle or annulus region could be missed when the region is only one pixel wide for that value of y.

- Added -n switch to funhist so that table histograms could be normalized by the width of the bin (val/(hi_edge-lo_edge)).

- Added -T switch to fundisp, funcnts, funhist to output in starbase/rdb format (uses tabs instead of spaces between columns, form-feeds between tables, etc.)

- Fixed a bug in which the field() region was not being properly processed in combination with an image section. This could affect funcnts processing of image data where an image section was specified (though it usually resulted in a funcnts error).

- Fixed bug in display of binary table header for vector columns.

- Filters now recognize hex constants (starting with 0x) and long constants (ending with L).

- Filenames containing a ':' are now only treated as sockets if they actually are in the form of a valid ip:port.

- Replaced funtools.ds9 with a new version that calls a new funds9 script, instead of calling funcnts or funhist directly. The new script supports gzip'ed files and bracket specifications on filenames at the same time, which the direct call could not. Also the new script has better error reporting.

- Replaced system() call used to compile filter and funcalc expression with a special launch() call, which performs execvp() directly without going through sh. (launch() works under DOS and has fewer security problems.)

- Fixed image filter code in which the field() region was being ignored if it was combined with one or more exclude regions (and no other include regions), resulting in no valid pixels.

- Changed use of getdtable() to FD_SETSIZE in calls to select().

- Added code to guard against FITS binary tables without proper TFORMx parameters.

- Added support to FunParamGets so that it returns the raw FITS card if the specified input name is NULL and the input n value is positive.

- Fixed bug in underlying fitsy code that set the comment in a header parameter.

## Public Release 1.0.0 (31 July 2001)

- "a new day with no mistakes ... yet"

Index to the Funtools Help Pages

##### Last updated: 22 April 2002