Manpage of XFIG

# XFIG

Section: User Commands (1)
Updated: Xfig 3.2.3a-sgi (Feb 9, 2000)
Index

## NAME

xfig - Facility for Interactive Generation of figures under X11

## SYNOPSIS

xfig [options] [file]

## DESCRIPTION

Xfig is a menu-driven tool that allows the user to draw and manipulate objects interactively under the X Window System. It runs under X version 11 release 4 or higher and requires a two- or three-button mouse. file specifies the name of a file to be edited. The objects in the file will be read at the start of xfig.

The bulk of the documentation fori xfig is in an HTML-based reference guide. See the Help menu in xfig or point your browser at Doc/html/index.html (provided with the xfig distribution, usually in the Doc/www directory). There are both English and Japanese versions.

When using a two-button mouse use the <Meta> key and the right button at the same time to effect the action of the middle button.

Xfig is available from ftp://www-epb.lbl.gov/xfig and usually from ftp://ftp.x.org/contrib/applications/drawing_tools/xfig .

The TransFig package is used when printing or exporting the output from xfig. The fig2dev program from the TransFig package is automatically called by xfig as a back-end processor to produce various types of output:

LaTeX, Metafont, PostScript or Encapsulated PostScript, tk (tcl/tk tool command language/tool kit package), GIF, JPEG, PCX, PNG, PPM, TIFF, XBM, XPM, AutoCAD Slide, IBM-GL (HP/GL), Pic PiCTeX, box, epic, eepic, and eepicemu.

See man fig2dev for all options.

The TransFig package is available from ftp://www-epb.lbl.gov/xfig and ftp://ftp.x.org/contrib/applications/drawing_tools/transfig .

## OPTIONS

-help

  Print all command-line options for xfig and quit.

-a[llownegcoords]

  Allow panning into the negative region of the canvas. This is the default

-bal[loon_delay] msec

  Cause popup information balloons to be delayed by msec milliseconds. The default is 500 milliseconds.

-bol[d] font

  Cause the font used for displaying the file name and confirmation messages to be font (default = 8x13bold).

-butt[on] font

  Cause the font used for most buttons to be font (default = 6x13).

-but_[per_row] number

  Specify the number of buttons wide the mode panel should be. This is useful in conjunction with the -pheight parameter to reduce the canvas height for small screens.

-cbg color

  Use color as the background color for the canvas. If you want to set the background of everything in xfig (e.g. menus, etc.) use the general -bg option.

-center

  Set the print option to print the figure centered on the page. This is the default.

-centim[ers]

  Make centimeters the unit of choice. See also -metric.

-cfg color

  Use color as the default color for objects. If you want to set the foreground of everything in xfig (e.g. menus, etc.) use the general -fg option.

-deb[ug]

  Turn on debugging mode. Prints various debugging messages like font names etc.

-dep[th]

  Choose depth of visual desired. Your server must support the desired visual and depth chosen. Use xdpyinfo to see what visuals and depths are supported. See also the -visual option.

-donta[llownegcoords]

  Don't allow panning into the negative region of the canvas. The default is to allow panning in the negative region.

-dontshowb[alloons]

  Prevents xfig from popping up the information balloons. See also -showballoons.

-dontshowl[engths]

  Don't show lengths of lines as they are being drawn. This is the default.

-dontshowz[erolines]

  Don't show axis zero lines on the canvas. The default is to show them.

-dontsw[itchcmap]

  Prevents xfig from switching to a private colormap if there aren't enough colors available in the default colormap. See also -max_image_colors.

-exportL[anguage] language

  Specifies the default language to be used for when exporting a fig file. Choices are:

      Name        Language
      box         LaTeX box (figure boundary)
      latex       LaTeX picture
      epic        LaTeX picture + epic macros
      eepic       LaTeX picture + eepic macros
      eepicemu    LaTeX picture + eepicemu macros
      pictex      PiCTeX macros
      ibmgl       IBMGL (or HPGL)
      eps         Encapuslated PostScript
      ps          PostScript
      pdf         PDF (Portable Document Format)
      pstex       Combined PS/LaTeX (both PS and LaTeX parts)
      textyl      Textyl special commands
      tpic        TPIC
      pic         PIC
      mf          MF (MetaFont)
      cgm         CGM (Computer MetaGraphics)
      tk          Tk (of the tcl/tk fame)
      sld         (AutoCad slide)
      pcx         PCX
      png         PNG
      gif         GIF
      jpeg        JPEG (JFIF)
      tiff        TIFF
      ppm         PPM (portable pixmap package)
      xbm         X11 Bitmap
      xpm         X11 Pixmap (XPM3 package)

-export_m[argin] width

  Set the size of the border margin around the figure for exporting to bitmap, PostScript, Encapsulated PostScript, or HTML MAP formats. This is in units of pixels (1/80th inch). The default is 0.

-fli[pvisualhints]

  Flip left/right mouse indicator messages for mice whose buttons have been switched. The default is to NOT flip the messages.

-flu[shleft]

  Set the print option to print the figure flush left. The default is to center the figure on the page.

-geom[etry] [WxH][+X+Y]

  You may use the -geometry option or resource to size and/or position the xfig window, or you may use -pwidth and/or -pheight to specify the canvas size in inches or centimeters. If you use the -geom option to make the xfig window smaller than the default, you may have to use the -but_per_row option to tell xfig to put 3 or 4 buttons per row on the left mode panel.

-grid[_color] color

  Draw the grid on the canvas in this color (default black).

-hidd[entext]

  Start xfig with the hidden text mode for text objects. The Hidden attribute is used for figures that will be used with LaTeX and is applicable only to the display of the document in xfig. It means that the text itself is not shown onscreen, but only the string ``<text>''. This is to keep long sequences of LaTeX formatting commands from making the screen messy and hard to read. The default for the Hidden flag is off.

-dontshowd[epthmanager]

  Hide the depth manager panel. The default is to show the panel.

-iconG[eometry] +X+Y

  Specifies the position for the icon.

-im[age_editor] editor

  Specify bitmap editor to use when ``Edit Image'' button is pressed in Picture Object panel.

-inc[hes] (or-imperial)

  Make inches the unit of choice. This is the default.

-internalBW width

  Use lines of width width between all buttons and panels (default = 1).

-jpeg[_quality] quality

  Set the quality factor for exporting to the jpeg format. The default is 75.

-k[eyFile] compose-key-file

  Use compose-key-file instead of CompKeyDB for compose (meta) key database. If there are no ``/''s in the name, the file must reside in the xfig library directory, $XFIGLIBDIR, usually /usr/local/lib/X11/xfig. If there are any ``/''s in the name it is taken as is (not relative to $XFIGLIBDIR). If there is a leading ``~/'' in the string then the ``~'' is expanded to the user's home directory.

-lan[dscape]

  Make xfig come up in landscape mode (10.5" x 8"). This is the default; however as the orientation is stored with Fig files, when you load a Fig file the orientation will change as required. This is only true for files of version 3.0 or higher.
  See also -portrait.

-lat[exfonts]

  Start xfig with LaTeX font selection. Normally, the PostScript fonts are available as the default. This flag selects the LaTeX fonts to start.

-le[ft]

  Change the position of the side panel window to the left of the canvas window. This is the default.

-li[brary_dir] directory

  Specify directory where Fig object libraries are located. There may be sub-directories there and sub-sub-directories, etc.

-mag[nification] mag

  Set export and print magnification in %.

-max[_image_colors] numcols

  Limit the number of colors used for imported images to numcols (default 64).

-me[tric]

  Make centimeters the unit of choice. Also -centimeters.
  After xfig is started you may change the units from metric to imperial or vice versa from a popup menu available by pressing mouse button 3 in the units box where the two rulers meet.

-mo[nochrome]

  Use black and white only.

-mu[ltiple]

  Sets multiple page mode for print or export. See also -single.

-nor[mal] font

  Cause the font used for the message window to be font. This font is also used on the canvas when the selected font is not available in an X11 font (default = 6x13).

-nos[calablefonts]

  Disables use of the X11R5 or OpenWindows scalable fonts. You might want to use this for debugging.

-not[rack]

  Turn off cursor (mouse) tracking arrows.

-pag[eborder] color

  Draw the page border on the canvas in this color (default light blue). The page border is turned on by the -showpageborder (resource Fig.showpageborder) option, and shows the edges of the current export paper size.

-pap[er_size] size

  Set the initial paper size for Export and Print. Choices are

      Letter (8.5" x 11"),
      Legal (8.5" x 14"),
      Ledger ( 17" x 11"),
      Tabloid ( 11" x 17"),
      A (8.5" x 11"),
      B ( 11" x 17"),
      C ( 17" x 22"),
      D ( 22" x 34"),
      E ( 34" x 44"),
      A4 (21 cm x 29.7cm),
      A3 (29.7cm x 42 cm),
      A2 (42 cm x 59.4cm),
      A1 (59.4cm x 84.1 cm),
      A0 (84.1 cm x 118.9cm),
      B5 (18.2cm x 25.7cm)

  Note that this doesn't affect the size of the drawing canvas. Use the -pheight and -pwidth options for that.

-ph[eight] height

  Make the xfig canvas height high (where height is either cm or in, depending on the -metric setting).

-po[rtrait]

  Make xfig come up in portrait mode (8.5" x 9"). See note about landscape mode.

-pw[idth] width

  Make the xfig canvas width wide (where width is either cm or in, depending on the -metric setting).

-righ[t]

  Change the position of the side panel window to the right of the canvas window (default: left).

-rigi[d]

  Start xfig with the rigid text mode for text objects. The Rigid attribute forces text to remain the same size even if inside a compound object that is scaled up or down. The default is off.

-ru[lerthick]

  Set the thickness of the top and side rulers in pixels. The default (and minimum) is 24.

-sc[alablefonts]

  Allows use of the X11R5 or OpenWindows scalable fonts (this is the default). If the scalable fonts aren't available xfig will automatically switch to non-scaling fonts.

-showa[llbuttons]

  Show all the xfig indicator buttons instead of only those relevant to the current drawing mode. Normally, the buttons line width, area-fill, grid mode, text size, etc. are only visible when they are relevant to the current drawing mode. The -showallbuttons option makes all of the indicator buttons visible at all times. This takes up more screen real estate, but allows the user to see all settable parameters.

-showb[alloons]

  Forces xfig to pop up the information balloons when the mouse passws over a button. This is the default. See also -dontshowballoons.

-showd[epthmanager]

  Show the depth manager panel. This panel lets one show or hide objects at various depths. This is the default.

-showl[engths]

  Makes xfig show the lengths of lines being drawn, in red text near the line itself. Also, when points are moved or added. In addition, imagine a triangle formed with the line segment as the hypotenuse, and a vertical and horizontal line forming the other two sides. These lines and their lengths are also drawn in red as the point is moved or added. This mode is ignored when drawing in freehand mode.
  This flag may be toggled by pressing <Meta>i (default).

-showp[ageborder]

  Makes xfig show the border of the current paper size in the color specified by the -pageborder option (default light blue).

-showz[erolines]

  Show axis zero lines on the canvas. This is the default

-si[ngle]

  Sets single page mode for print or export. This is the default. See also -multiple.

-spec[ialtext]

  Start xfig with the special text mode for text objects. Special text means that special characters in the string are not specially processed but are passed directly to LaTeX. This is most useful for writing LaTeX equations. If this flag is not set, then the backslash character '\' is changed to the \backslash command, a brace '{' is turned into a brace command \{, etc.

-spel[lcheckcommand] command

  Use command for the external spell checking program when using the spell check/search/replace popup. The string command should include the string ``%s'' which is replaced by a temporary filename. Default is ``spell %s''.

-spinner_d[elay] msec

  The delay (in milliseconds) before the spinner will automatically count up or down when the button is pressed. Spinners are the (numeric) text widgets with an up- and down-arrow, which when clicked, cause the value to be incremented/decremented. The default is 500 milliseconds.

-spinner_r[rate] msec

  The rate (in milliseconds) at which the spinner will count when the up- or down-arrow is pressed.

-startfi[llstyle] stylenumber

  Set the starting fill style for area fill (-1 to 21).

-startfo[ntsize] pointsize

  Set the default font size for text objects (default = 12pt).

-startg[ridmode] modenumber

  Set the starting grid mode (0 to 3). Mode 0 is no grid. In imperial (inches) mode, grid mode 1 is 1/4 inch, mode 2 is 1/2 inch and mode 3 is 1 inch. In metric mode, grid mode 1 is 5mm, mode 2 is 1cm and mode 3 is 2cm.

-startla[texFont] font

  Set the starting font name for LaTeX fonts.

-startli[newidth] width

  Set the starting line width.

-startpo[snmode] modenumber

  Set the starting point positioning mode (0 to 4) In imperial (inches) mode, positioning mode 0 is ``any'', mode 1 is 1/16 inch, mode 2 is 1/4 inch, mode 3 is 1/2 inch and mode 4 is 1 inch. In metric mode, mode 0 is ``any'', mode 1 is 1mm, mode 2 is 5mm, mode 3 is 10mm and mode 4 is 20mm.

-startp[sFont] font

  Set the starting font name for PostScript fonts.

-startt[extstep] stepsize

  Set the starting text step.

-ta[blet]

  Specifies that xfig should use the input tablet instead of the mouse for drawing. You must have the XInputExtension in your X server and an input tablet for this to work. Also, you must modify the Imakefile to include the USETAB and TABLIB variables.

-track

  Turn on cursor (mouse) tracking arrows (default).

-tran[sparent_color] color_number

  Make the transparent color for GIF export color_number. This number is the color number according to the xfig color panel, starting at 0 (black) and ending at 31 (gold), or may be a user-defined color number, which is 32 or higher.

-up[date] file [ file ... ]

  Run xfig in an "update" mode, where it will read each Fig file specified on the command line and write it out to the original file, in the current file format for the version of xfig being run. The original Fig file will be preserved with the suffix .bak attached to the name.
  In this mode, xfig doesn't connect the X server, so no window is opened, and it exits when finished.

-users[cale] scale

  Set the multiplier for displayed line lengths etc. This factor is multiplied by the actual length, radius or diameter of the object currently being drawn on the canvas. It is useful for making scale drawings, where e.g. 1 inch = 1 foot (userscale = 12.0) or 1cm = 1m (userscale = 100.0).

-useru[nit] units

  The units string is printed with the length information when drawing objects. For example if the userscale = 1.0 and the userunit = ft then a line which is 3 inches long on the canvas would be displayed as ``length = 3 ft'' when it is being drawn.
  After xfig is started you may change the userscale and the userunit from a popup menu available by pressing mouse button 3 in the units box where the two rulers meet.

-visual visualname

  Use visualname as the visual for xfig. The names are TrueColor (case is not important), StaticColor, DirectColor, StaticGray, GrayScale and PseudoColor. xfig uses the default visual unless this is specified. Your server must support the desired visual. Use xdpyinfo to see what visuals and depths are supported. See also the -depth option.

-zoom zoomscale

  Set the starting zoom scale.

## X RESOURCES and DEFAULTS

The overall widget name(Class) is xfig(Fig). These resources correspond to the command line arguments:

    Name                Class               Type    Default     Command-line
                                                                equivalent
    allownegcoords      NegativeCoordinates boolean on          -allownegcoords,
                                                                -dontallownegcoords,
    balloon_delay       balloonDelay        integer 500 (ms)    -balloon_delay
    boldFont            Font                string  8x13bold    -bold
    but_per_row         But_per_row         int     2           -but_per_row
    buttonFont          Font                string  6x13        -button
    canvasBackground    Background          string  white       -cbg
    canvasForeground    Foreground          string  black       -cfg
    debug               Debug               boolean off         -debug
    depth               Depth               integer *           -depth
    dontswitchcmap      Dontswitchcmap      boolean false       -dontswitchcmap
    exportLanguage      ExportLanguage      string  eps         -exportLanguage
    export_margin       Margin              integer 0           -export_margin
    flipvisualhints     Hints               boolean false       -flipvisualhints
    flushleft           FlushLeft           boolean false       -flushleft
    grid_color          Color               string  black       -grid_color
    image_editor        ImageEditor         string  xv          -image_editor
    inches              Inches              boolean true        -inches,
                                                                -centimeters,
                                                                -imperial,
                                                                -metric
    internalborderwidth InternalBorderWidth integer 1           -internalBW
    justify             Justify             boolean false       -left (false),
                                                                -right (true)
    jpeg_quality        Quality             integer 75          -jpeg_quality
    keyFile             KeyFile             string  CompKeyDB   -keyFile
    landscape           Orientation         boolean true        -Landscape,
                                                                -Portrait
    latexfonts          Latexfonts          boolean off         -latexfonts
    library_dir         Directory           string  ~/xfiglib   -library_dir
    magnification       Magnification       float   100         -magnification
    max_image_colors    Max_image_colors    integer 64          -max_image_colors
    monochrome          Monochrome          boolean false       -monochrome
    multiple            Multiple            boolean false       -multiple
    normalFont          Font                string  6x13        -normal
    pageborder          Color               string  lightblue   -pageborder
    page_size           Pagesize            string  Letter/A4   -page_size
    pheight             Height              float   8(9.5)      -pheight
    pwidth              Width               float   10(8)       -pwidth
    rulerthick          RulerThick          integer 24          -rulerthick
    scalablefonts       ScalableFonts       boolean true        -scalablefonts
    showallbuttons      ShowAllButtons      boolean false       -showallbuttons
    showballoons        ShowBalloons        boolean true        -showballoons,
                                                                -dontshowballoons
    showdepthmanager    Hints               boolean true        -showdepthmanager,
                                                                -dontshowdepthmanager
    showpageborder      Debug               boolean true        -showpageborder,
                                                                -dontshowpageborder
    showlengths         ShowLengths         boolean false       -showlengths,
                                                                -dontshowlengths
    showzerolines       Axis                boolean true        -showzerolines,
                                                                -dontshowzerolines
    single              Single              boolean true        -single
    specialtext         SpecialText         boolean false       -specialtext
    spellcheckcommand   spellCheckCommand   string  spell %s    -spellcheckcommand
    spinner_delay       spinnerDelay        integer 500 (ms)    -spinner_delay
    spinner_rate        spinnerRate         integer 100 (ms)    -spinner_rate
    startfillstyle      StartFillStyle      integer 0           -startfillstyle
    startfontsize       StartFontSize       float   12          -startfontsize
    startgridmode       StartGridMode       integer 0           -startgridmode
    startlatexFont      StartlatexFont      string  Default     -startlatexFont
    startlinewidth      StartLineWidth      integer 1           -startlinewidth
    startposnmode       StartPosnMode       integer 1           -startposnmode
    startpsFont         StartpsFont         string  Times-Roman -startpsFont
    starttextstep       StartTextStep       float   1.2         -starttextstep
    trackCursor         Track               boolean on          -track,
                                                                -notrack
    transparent_color   Transparent         integer -2 (none)   -transparent_color
    userscale           UserScale           float   1.0         -userscale
    userunit            UserUnit            string  in(cm)      -userunit
    visual              Visual              string  *           -visual
    zoom                Zoom                float   1.0         -zoom

    * Default visual and depth depend on the X server. Use xdpyinfo to see what visuals
    and depths are supported.

## BUGS and RESTRICTIONS

Please send bug reports, fixes, new features etc. to:
xfig-bugs@epb1.lbl.gov (Brian V. Smith)

When reporting a bug, please first check if the problem is mentioned in the FAQ section of the HTML files (xfig Help menu).

If it is not mentioned there, be sure to report the operating system you are using (e.g. SunOS 4.1.3), type of X server and version (OpenWindows 3, X11R6.4, XFree86 3.2.2, etc) and color depth (e.g. 8bpp, 16bpp), and most importantly the version of xfig or fig2dev that is having the problem.

It is also VERY useful to me if you can provide a stack trace from a debugger such as gdb, dbx, ups, etc, if the bug causes xfig to crash.

Because of the difference of some fonts in some X servers and the PostScript fonts on printers, text alignment can be problematic.

Not all operations employ smart redrawing of objects which are altered as a by product of the operation. You may need to use Redraw in these cases.

Some servers do not allow bitmaps/pixmaps taller than the screen height or wider than the screen width. That is why there is a limit on the width of the top ruler and height of the side ruler. If you need wider/taller rulers AND your server allows bigger pixmaps, you may define MAX_TOPRULER_WD and/or MAX_SIDERULER_HT in your Imakefile in the DEFINES line. For example, to have a maximum top ruler width of 1160 pixels, add -DMAX_TOPRULER_WD=1160 to your DEFINES line in the Imakefile.

If the image is panned or the xfig window iconified and de-iconified during the middle of an operation (e.g. while drawing a line), the picture will be distorted. This can be corrected using Redraw after the operation is complete.

When zoomed very large, the length of dashes in dashed lines will top out at 255 pixels long. This is due to a restriction in X that the dash list is defined by char (255 pixels maximum for a dash). The figure will print correctly, however.

When you do a copy/rotate with multiple copies, only the creation of the last object can be undone with the Undo button.

Modifications to text using the popup search/update/replace/spell check panel cannot be undone.

See the README file for troubleshooting.

## SEE ALSO

fig2dev(1) (TransFig package)

gs(1) (Ghostscript PostScript previewer)

## ACKNOWLEDGEMENT

(From the original author, Supoj Sutanthavibul): Many thanks goes to Professor Donald E. Fussell who inspired the creation of this tool.

(From current maintainer Brian Smith): Thanks to all the users who have contributed to xfig, especially Paul King who, besides adding many features, revamped the look and feel which became version 2.1.

## COPYRIGHT

    Original Copyright (c) 1985 by Supoj Sutanthavibul
    Parts Copyright (c) 1989-2002 by Brian V. Smith
    Parts Copyright (c) 1991 by Paul King
    Other Copyrights may be found in various files

Any party obtaining a copy of these files is granted, free of charge, a full and unrestricted irrevocable, world-wide, paid up, royalty-free, nonexclusive right and license to deal in this software and documentation files (the "Software"), including without limitation the rights to use, copy, modify, merge, publish and/or distribute copies of the Software, and to permit persons who receive copies from any such party to do so, with the only requirement being that this copyright notice remain intact.

Note that although I work at Lawrence Berkeley National Laboratory (LBNL) I don't speak for LBNL nor do I represent LBNL with respect to my work on TransFig and xfig, nor does LBL make any representations about the suitability of this software for any purpose.

Here is the legal part:

THE LAWRENCE BERKELEY NATIONAL LABORATORY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

PostScript is a trademark of Adobe Systems Incorporated.

    Parts Copyright (C) 1989 by Jef Poskanzer.
    Copyright notice for pbmplus code:

    Permission to use, copy, modify, and distribute this
    software and its documentation for any purpose and without
    fee is hereby granted, provided that the above copyright
    notice appear in all copies and that both that copyright
    notice and this permission notice appear in supporting
    documentation.  This software is provided ``as is'' without
    express or implied warranty.

## FILES

CompKeyDB
  Data base of compose (meta) key sequences for 8-bit characters. Must be installed in $(XFIGLIBDIR) with ``make install'', or may be specified with command line option -keyFile or X toolkit resource keyFile. See the Imakefile.
/usr/lib/X11/xfig
  This directory contains the html documentation, the above mentioned CompKeyDB file, and a directory of libraries containing Fig objects such as electrical symbols, logic symbols, etc.
Fig.ad and Fig-color.ad
  Application defaults files which are automatically installed in the system app-defaults directory with the make install command.
Doc/FORMAT3.2
  Description of Fig file format.
README
  Installation instructions and troubleshooting.
CHANGES
  Description of bug fixes/new features.

## AUTHORS

Many people have contributed to xfig. Here is a list of the people who have contributed the most (in chronological order):

Version 1:

Original author:
Supoj Sutanthavibul, University of Texas at Austin

The LaTeX line drawing modes were contributed by:
Frank Schmuck, Cornell University

Original X11 port by:
Ken Yap, Rochester

Variable window sizes, cleanup of X11 port, right hand side panel:
Dana Chee, Bellcore

Cleanup of color port to X11 by:
John T. Kohl, MIT

Version 2.0:

Area fill, multiple line thicknesses, multiple fonts and font sizes, bottom panel, line style/thickness, (and anything else that wasn't written by the others) by:
Brian Smith
(standard disclaimer applies)
(bvsmith@lbl.gov)

Popup change-object menu by:
Jon Tombs
Frank Schmuck

Zooming and panning functions, shift key select mechanism by:
Dieter Pellkofer
Henning Spruth

Depth feature by:
Mike Lutz

Cut/Paste by:
Tom Tkacik

Version 2.1:

Indicator panel, file menu popup, print menu popup, panning with rulers, mouse function window, regular polygon, rubberbanding of circles/ellipses, filled splines on canvas, dashed/dotted splines on canvas, update button, arbitrary angle rotation of objects, alignment in compound, object scaling, constrained copy/move, corner markers for compound, context sensitive corner markers, smarter redraw, undo for compound and point move for boxes, cancel object creation, point positioning to three resolutions, TransFig scalable text, hidden text, special text, save of figure on crash by:

Paul King (king@cs.uq.oz.au)
with help from:
Brian Smith and Micah Beck (beck@cs.utk.edu)

Encapsulated PostScript importing by:
Brian Boyter

Pan/zoom with ctrl key/mouse by:
Henning Spruth

International characters by:
Herve Soulard

Directory Browser based on XDir by:
Win Treese, Digital Equipment Corporation

Rotated ellipses by:
James Tough, Dept. of Computer Science, Heriot-Watt University, Scotland

Rotated text from the xvertext package by:
Alan Richardson, Space Science Centre, School of MAPS, University of Sussex

Popup scale menu and dynamic switching between inches and cm by:
Paul King (king@cs.uq.oz.au)

Extensive man page formatting revisions by:
David W. Sanderson

Display Postscript code for IBM RS/6000 by:
Dave Hale (dhale@green.mines.colorado.edu)

Version 3.0:

New arrowhead types, separate pen/fill colors, new file protocol, more colors with extended color popup panel, new arc style, new fill patterns (bricks, etc), new line join and cap styles, export offset and file load offset, XPM import, XBM import and export (and anything else that wasn't written by the others) by:
Brian Smith
(Note: the color popup panel was based on xcoloredit by Richard Hesketh)

GIF header reading code by:
David Koblas from the giftoppm part of the pbmplus package

XPM export code (using XPM3 libraries) by:
Karel van Houten (K.H.C.vanHouten@research.ptt.nl)

Higher figure resolution (1200dpi) by:
Ross Martin (martin@trcsun3.eas.asu.edu)

Color quantization using neural network by:
Anthony Dekker (dekker@ACM.org)
[NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994. See ``Kohonen neural networks for optimal colour quantization'' in ``Network: Computation in Neural Systems'' Vol. 5 (1994) pp 351-367. for a discussion of the algorithm.]

Floyd-Steinberg algorithm for dithering color images on monochrome displays lifted from the Pbmplus package by Jef Poskanser.

rotate/flip objects around/about selected anchor point and multiple copies of objects by:
Uwe Bonnes (bon@lte.e-technik.uni-erlangen.de)

Input tablet extension by:
Greg LaCoste (greg@seismo.do.usbr.gov)

Version 3.1:

The only difference between protocol version 3.0 and version 3.1 is that the position of the ``magnet'' has been shifted by 14 fig units. In the 2.1 and older versions of xfig the grid was in multiples of 5 fig units, but they were on intervals 4, 9, 14, 19, etc. When version 3.0 was created, coordinates were simply multiplied by the ratio of the resolutions (1200/80 = 15) so values like 4 became 60 instead of 74 ((4+1)*15 - 1).

The JPEG import/export code uses the Independent JPEG Group software (see jpeg/README for details)

Image browser, editor and screen capture features by:
Jim Daley (jdaley@cix.compulink.co.uk)

Version 3.2:

The changes to the version 3.2 file protocol are the addition of the paper size, print/export magnification, single/multiple page indicator and a transparent color name used for GIF export to the header of the file.
The other difference in the version 3.2 protocol is the mathematical model used for splines. The new version uses X-splines which allows the user to mix interpolation and approximation points in a same curve. More precisely, it means that an X-spline curve is neither an interpolated spline nor an approximated one, it is BOTH (the behaviour of each point is controlled by one single parameter called ``shape factor''). For additional information about X-splines, see:

"X-Splines: A Spline Model Designed for the End User"
by C. Blanc and C. Schlick, Proceedings of SIGGRAPH'95
http://dept-info.labri.u-bordeaux.fr/~schlick/DOC/sig1.html

Caveat: Because previous spline models (quadratic B-splines and Bezier with hidden points) are no longer supported, curves that are present in version 3.1 and older files are automatically converted to X-splines. This translation is only an approximation process. It means that the converted curves are not exactly the same as the original ones. Though they are usually very close, some hand-fitting may be needed in some pathological cases.

Inclusion of X-splines by:
Carole Blanc (blanc@labri.u-bordeaux.fr)
Christophe Schlick (schlick@labri.u-bordeaux.fr)
Note: the initial implementation was done by C. Feuille, S. Grosbois, L. Maziere and L. Minihot as a student practice (Universite Bordeaux, France).

Open/close compound feature written by
Bill Taylor (bill@mainstream.com)

Library feature written by
Stephane Mancini (mancini@elecsrv.enst.fr) (object preview by Brian V. Smith)

The library objects in the Electrical and Logic libraries were done by
Peter Hiscocks (phiscock@ee.ryerson.ca)

The library objects in the Computer, Networks, and Hospital-Equipment libraries were extracted from the clipart example files by
Bill Chimiak (chim@bgsm.edu)

Version 3.2.3:

Please see the CHANGES file for credits for version 3.2.3 features.

## NOTES

Many bug fixes/cleanups etc. by a host of faithful users

See the CHANGES file for all the credits

The TransFig package was written by Micah Beck and is maintained by Brian Smith

## Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
X RESOURCES and DEFAULTS
BUGS and RESTRICTIONS
SEE ALSO
ACKNOWLEDGEMENT
COPYRIGHT
FILES
AUTHORS
NOTES