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Newsgroups: comp.sources.misc organization: Pixar -- Marin County, California subject: v11i066: Gnuplot 2.0 - 1 of 14 From: thaw@ucbvax.Berkeley.EDU@pixar.UUCP (Tom Williams) Sender: allbery@uunet.UU.NET (Brandon S. Allbery - comp.sources.misc) Posting-number: Volume 11, Issue 66 Submitted-by: thaw@ucbvax.Berkeley.EDU@pixar.UUCP (Tom Williams) Archive-name: gnuplot2/part01 This is gnuplot.sh01 --- CUT HERE --- #! /bin/sh echo x - Copyright sed 's/^X//' >Copyright <<'*-*-END-of-Copyright-*-*' X/* X * Copyright (C) 1986, 1987, 1990 Thomas Williams, Colin Kelley X * X * Permission to use, copy, and distribute this software and its X * documentation for any purpose with or without fee is hereby granted, X * provided that the above copyright notice appear in all copies and X * that both that copyright notice and this permission notice appear X * in supporting documentation. X * X * Permission to modify the software is granted, but not the right to X * distribute the modified code. Modifications are to be distributed X * as patches to released version. X * X * This software is provided "as is" without express or implied warranty. X * X * X * AUTHORS X * X * Original Software: X * Thomas Williams, Colin Kelley. X * X * Gnuplot 2.0 additions: X * Russell Lang, Dave Kotz, John Campbell. X * X * send your comments or suggestions to (pixar!info-gnuplot@sun.com). X * X */ *-*-END-of-Copyright-*-* echo x - README sed 's/^X//' >README <<'*-*-END-of-README-*-*' XThe GNUPLOT source code and executables may be copied and/or modified Xfreely as long as the copyright messages are left intact. X XCompilation instructions are near the end of this file. X XGNUPLOT has been tested on Sun3's and Sun4's (SunOS 4.0.3), a Pyramid X90x (OSx 4.0 - ucb 4.3 and att V), a VAX 6410 (VMS 5.2), IBM PC XT's Xand AT's (MS-DOS 3.3, Microsoft C 5.10 and Turbo C 2.0)), IRIS 4D/70G Xand 4D/25G with MIPS C, and NeXT with gnu C 1.34. The code is written Xwith portability in mind. X XIf you have problems, send mail to pixar!info-gnuplot@sun.com. And Xplease send any modifications you make so they can be considered for Xlater releases. X X X GNUPLOT 2.0 RELEASE NOTES X XNew terminal drivers: Roland DXY800A, EEPIC, EPSON LX-800, Fig, XHP2648, HPGL, HP LaserJet, Imagen, Kermit-MS Tektronix emulator, XLaTeX, MCGA, NEC CP6 pinwriter, POSTSCRIPT, Proprinter, SUN, VGA. X XAdditions: X XCommand-line arguments are accepted. They are treated as names of Xfiles containing gnuplot commands. Gnuplot loads them, one by one, and Xthen exits. X XCommand 'plot' now has a 'title' option to change the information in Xthe key. The 'with' option can now specify line type and point type. X XCommand 'pause'. X XCommand 'replot' allows the addition of extra plots. X XCommand 'save' now saves all the 'set' options, including the last Xplot command. X XCommand 'set autoscale' now accepts autoscaling on the x axis for data Xfiles. The default is autoscaling on both axes. X XCommand 'set noclip' disables clipping of points near the border. 'set Xclip' reenables clipping. The default used to be 'clip', and is now X'noclip'. Clipping has also been extended to clip lines that extend Xoutside the borders: line plots are now clipped at the plot boundary. XFormerly, the line stopped at the last in-range data point. X XNumerical labelling at tic marks on x and y axes. Command 'set Xformat' allows the format of the tic mark labels to be altered. XCommands 'set xtics' and 'set ytics' allow for alphanumeric labels and Xarbitrary tic positions. X XCommand 'set grid' adds a grid between the tic marks. X XImproved key gives sample point or line types. Key can be disabled Xwith the 'set nokey'. Key can be positioned anywhere. X XCommand 'set label' allows the placement of arbitrary text labels and Xarrows. X XCommand 'set polar' for polar plots. X XCommand 'set offsets' for reducing the plotted area. Useful for polar Xplots. X XCommand 'set size' scales the displayed size of the plot. X XCommand 'set tics out' causes the tics to be drawn outwards from the Xborder. Useful for impulse plots. X XCommand 'set title' places a text label above the plot. X XCommands 'set xlabel' and 'set ylabel' place text labels on the x and Xy axes respectively. Some terminals will place the y label vertically Xupwards on the left of the plot, others place the label horizontally Xat the left of the plot. X XImproved tics on log scales. X XExtended comments: comments are allowed anywhere reasonable in the Xinput line, and continue to the end of the input line. X XLine continuation (with \) is added. X XNon-interactive use, through redirection or "load" command, is Ximproved. Error messages expanded to include file name and line Xnumber, and to reprint command line if not interactive. X XNew plotting styles 'linespoints' and 'dots'. X XBlank lines in data files denote "breaks". In lines and linespoints Xplot styles, this breaks the curve being drawn and begins at the next Xpoint, without changing the line or point types. X XCompletely new interactive help system that is similar to VMS help Xsystem. A printed manual can be obtained in LaTeX, troff, or nroff and Xis based on the same information as the interactive help. X XPC version now compiles with the large model so that gnuplot will Xcompile with the above additions! X XBug fixes include: X------------------ XBug involving functions plotted on a logarithmic x axis is fixed. X XErrors inside of loaded files now clean up and close files properly. X XNumbers of the form xxxxe+nn are now acceptable (+ sign caused error). X XTics are now place inside the borders (some were outside). X XReverse axes now work properly. X XCommand 'set output ""' used to crash. X XVMS was closing stdout, so 'set output' code changed to avoid closing Xit. VMS version of gnuplot now performs a SET TERM/NOWRAP itself. X XTerminal is now reset before closing output file, changing terminal Xtype or exiting gnuplot. X XSeveral old bugs have been superseded by new ones. X X X ACKNOWLEDGEMENTS X XThe Unix PC, polar, pause, and offset additions were by John Campbell. X(CAMPBELL@NAUVAX.bitnet) XThe Turbo C additions were by Bill Wilson. X(WILSON@NAUVAX.bitnet) XSome of the labelling improvements and combining of these additions Xwere by Russell Lang. X(rjl@monu1.cc.monash.oz.au) XThe LaTeX driver, the help system, and some of the labelling Ximprovements were by David Kotz. X(dfk@cs.duke.edu) XAnd of course, the vast majority of the program is by Colin Kelley Xand Thomas Williams. X(pixar!info-gnuplot@sun.com) X X X GNUPLOT 1.1 RELEASE NOTES X XNew terminal drivers: AED 512, BBN BitGraph, HP2623, POSTSCRIPT, XSelanar, Vectrix 384. The PC version now supports Hercules and ATT X6300 monochrome graphics. Thanks to those who sent these drivers in. X XNew commands: 'set dummy' and 'show dummy' to select the dummy Xvariable name; 'replot' to repeat the last 'plot' command. X XThe exclamation point (!) is now accepted as postfix factorial Xoperator. The gamma() function is also included, if your C library Xhas gamma(). See GAMMA below. X XLogical AND (&&) and OR (||) now short-circuit the way they do in C. XThat is, the second && operand is not evaluated if the first is false; Xthe second || operand is not evaluated if the first is true. The Xternary operator (?:) also does not evaluate the unused operand. This Xchange allows for the definition of recursive functions, e.g. a Xsynonym for the ! factorial operator: X X fact(x) = (x<=1) ? 1 : x*fact(x-1) X XGNUPLOT now has a much better memory allocation scheme, replacing most Xfixed-size arrays with malloc()'d linked lists. There is no longer Xany artificial maximum on the number of simultaneous plots, number of Xpoints in those plots, or the number of user-defined functions or Xvariables. All these are limited only by the memory available to Xmalloc(). This is a big improvement for memory-starved machines like XPDP-11s or PCs. X XLines beginning with # (also ! in VMS) are treated as comments. Only Xthe $ may now be used for a shell escape in VMS, since ! is a comment. X XSeveral old bugs have been superseded by new ones. X X X PREPROCESSOR #DEFINES X XThese #defines should be checked before compilation: Xdefine file note X------ ---- -------- XVFORK Makefile define if you've got vfork() system call XGAMMA Makefile define if you've got gamma(3) XBCOPY Makefile define if your memcpy() is called bcopy() XBZERO Makefile define if you have bzero() but not memset() XNOCOPY Makefile define if you've don't have a memcpy() by any name Xbcopy() plot.h define if you've got a memcpy() by some OTHER name X (see example in plot.h) XPC Makefile define if compiling on a PClone XMSDOS Makefile define if compiling under MSDOS; X automatically defined by Microsoft C 5.10 XHELPFILE Makefile name including path of gnuplot.gih file. XVERYLARGE plot.h define to be largest coordinate number. XSHELL plot.h default shell to spawn if SHELL environment X variable not found at run-time X XValid TERMFLAGS defines. These defines are used to include the Xvarious plotting terminals, printers, and protocols that a given version Xof gnuplot can access: X Xdefine file note X------ ---- -------- XTERMFLAGS Makefile the set of terminals you want, from below X X AED AED 512 and AED 767 X BITGRAPH BBN BitGraph X DXY800A Roland DXY800A plotter X EPSON Epson LX-800, Star NL-10, NX-1000 and lots of others X FIG Fig graphics language (requires object.h from TransFig) X HP2648 HP2648, HP2647 X HP26 HP2623A and maybe others X HP75 HP7580, and probably other HPs X HPGL HP7475 and (hopefully) lots of others X HPLJET HP Laserjet X IMAGEN Imagen laser printers (300dpi) (requires -Iterm also) X IRIS4D IRIS4D series computer X KERMIT MS-Kermit Tektronix 4010 emulator X LATEX LATEX picture environment X NEC NEC CP6 pinwriter printer X POSTSCRIPT Postscript X PROPRINTER IBM Proprinter X QMS QMS/QUIC laserprinter (Talaris 1200 and others) X REGIS ReGis graphics (vt125, vt220, vt240, Gigis...) X SELANAR Selanar X TEK Tektronix 4010, and probably others X SUN Sun Microsystems Workstation X UNIXPC unixpc (ATT 3b1 or ATT 7300) X UNIXPLOT unixplot X V384 Vectrix 384 and tandy color printer X X XThese #defines are defined automatically by various compilers, some Xgnuplot routines check these defines to implement features found in the Xvarious environments: X Xdefine note X------ -------- Xvms (and VMS) defined by VAX-11 C under VMS. X X__TURBOC__ defined automatically by Turbo C 2.0 X__ZTC__ defined automatically by Zortech C X X X TO COMPILE X Xunder UNIX: XTo compile do: X cp makefile.unx Makefile X (make any changes to #defines, especially HELPDEST and TERMFLAGS) X make X Xunder VMS: X To compile: X copy makefile.vms makefile. X make X Or if you don't have a suitable make: X @buildvms X To tell gnuplot where to find the help library: X $ define gnuplot$help disk:[directory]gnuplot.hlb X Alternatively (and preferably) put the help in the main system help library. X Xunder MSDOS: XUsing Microsoft C 5.10. X make makefile.msc X XUsing Turbo C 2.0. X make -fmakefile.tc X XThe file gnuplot.gih is needed for help on the PC. XIf the file gnuplot.gih is not in the default directory, then use: X set GNUHELP={full path name of gnuplot.gih} X XThe Zortech C++ compiler has been used to compile gnuplot, but Xit has not been tested. The Microsoft MASM and linker are needed. X X X ENVIRONMENT VARIABLES X XIf the environment variable GNUTERM is found, it is used as the terminal Xtype. Otherwise, in some cases the variable TERM will be used, or the Xhardware may be automatically detected. X XThe PC version looks for the environment variable GNUPLOT to contain Xthe name of the directory from which to load the initialization file XGNUPLOT.INI. See the help on 'start_up' for more information. X XHOME is examined as a directory where a .gnuplot startup file might be Xfound. See help on "start-up". X XIf defined, the environment variable GNUHELP is used for the name Xof the .gih help file, otherwise HELPFILE (defined in makefile or Xplot.c) is used. X XThe VMS version looks for the logical name GNUPLOT$HELP to locate Xthe help library. *-*-END-of-README-*-* echo x - README.gnutex sed 's/^X//' >README.gnutex <<'*-*-END-of-README.gnutex-*-*' XA note to former Gnutex users, from David Kotz (dfk@cs.duke.edu). X----------------------------------------------------------------- X XMarch 4, 1990 X XI am happy to be a part of GNUPLOT 2.0, and I believe that it is a Xmuch improved program from its various predecessors. Many aspects of Xgnutex 1.6 made it into GNUPLOT 2.0. Unfortunately for those of us who Xhave a lot of gnutex input files around, not everything from gnutex is Xsupported by GNUPLOT. To help gnutex users with the process of Xadapting to GNUPLOT (and I recommend it), I have included a section in Xthe LaTeX/GNUPLOT tutorial (in ./docs/latextut/) about the Xdifferences, and written a translator program (in ./translate/). XPlease read the LaTeX/GNUPLOT tutorial. X XUsers of gnutex that did not use the LaTeX driver will probably have Xlittle difficulty adapting. X XPlease send all comments, complaints, and suggestions on this subject Xto dfk@cs.duke.edu. *-*-END-of-README.gnutex-*-* echo x - makefile.unx sed 's/^X//' >makefile.unx <<'*-*-END-of-makefile.unx-*-*' X# X# GNUPLOT Makefile X# X X# directory where to install executables on 'make install' XDEST=/usr/local/bin X# directory for installing man page on 'make man_install' XMANDEST=/usr/man/manl X# where to install help file gnuplot.gih X#HELPDEST=/usr/local/lib/gnuplot.gih XHELPDEST=docs/gnuplot.gih X# Where to send email about bugs and comments (locally) XEMAIL=\"pixar\!bug-gnuplot@sun.com\" X X# -DVFORK if you have vfork() X# -DBCOPY if your memcpy() is called bcopy() (a Berkeleyism, right?) X# -DBZERO if you need to use bzero() (another BSD feature) instead of memset() X# -DNOCOPY if you don't have a memcpy() by any name X# -DGAMMA if you've got gamma(3) X# -fswitch if you are compiling on a Sun3 (or even -f68881) X# -O if you trust your compiler's optimizer XCFLAGS = -DVFORK -DBCOPY -DBZERO -DGAMMA #-gx #-O X X# -D<terminal> in TERMFLAGS iff you wish to support <terminal> X# -DAED AED 512 and AED 767 X# -DBITGRAPH BBN BitGraph X# -DDXY800A Roland DXY800A plotter X# -DEEPIC EEPIC-extended LaTeX driver, for EEPIC users X# -DEPSON Epson LX-800, Star NL-10, NX-1000 and lots of others X# -DFIG Fig graphics language (requires object.h from TransFig) X# -DHP2648 HP2648, HP2647 X# -DHP26 HP2623A and maybe others X# -DHP75 HP7580, and probably other HPs X# -DHPGL HP7475, HP7220 plotters, and (hopefully) lots of others X# -DHPLJET HP Laserjet X# -DIMAGEN Imagen laser printers (300dpi) (requires -Iterm also) X# -DIRIS4D IRIS4D series computer X# -DKERMIT MS-Kermit Tektronix 4010 emulator X# -DLATEX LATEX picture environment X# -DNEC NEC CP6 pinwriter printer X# -DPOSTSCRIPT Postscript X# -DPROPRINTER IBM Proprinter X# -DQMS QMS/QUIC laserprinter (Talaris 1200 and others) X# -DREGIS ReGis graphics (vt125, vt220, vt240, Gigis...) X# -DSELANAR Selanar X# -DTEK Tektronix 4010, and probably others X# -DSUN Sun Microsystems Workstation X# -DUNIXPC unixpc (ATT 3b1 or ATT 7300) X# -DUNIXPLOT unixplot X# -DV384 Vectrix 384 and tandy color printer X XTERMFLAGS = -Iterm -DAED -DBITGRAPH -DDXY800A -DEPSON -DHP2648 \ X -DHP26 -DHP75 -DHPGL -DHPLJET -DIMAGEN -DKERMIT -DLATEX -DEEPIC \ X -DPOSTSCRIPT -DPROPRINTER -DQMS -DREGIS -DSELANAR -DTEK \ X -DUNIXPLOT -DV384 X XOBJS = command.o eval.o graphics.o help.o internal.o misc.o parse.o\ X plot.o scanner.o setshow.o standard.o term.o util.o X XDIRS = term demo bugtest docs docs/latextut translate XCSOURCE1 = command.c setshow.c XCSOURCE2 = help.c graphics.c internal.c XCSOURCE3 = misc.c eval.c parse.c plot.c scanner.c standard.c XCSOURCE4 = term.c util.c version.c XCSOURCE5 = term/aed.trm term/dxy.trm term/epson.trm term/font5x7.trm \ X term/hp26.trm term/hp2648.trm term/hpgl.trm \ X term/hpljet.trm term/iris4d.trm term/sun.trm XCSOURCE6 = term/post.trm term/pc.trm term/qms.trm term/regis.trm \ X term/tek.trm term/unixpc.trm term/unixplot.trm term/v384.trm XCSOURCE7 = term/imPcodes.h term/imagen.trm term/object.h term/fig.trm \ X term/latex.trm term/eepic.trm X# not C code, but still needed XETC = Copyright README README.gnutex makefile.unx makefile.vms \ X makefile.3b1 makefile.ult plot.h help.h setshow.h lasergnu \ X demo/1.dat demo/2.dat demo/3.dat demo/controls.demo \ X demo/simple.demo demo/polar.demo demo/electron.demo \ X bugtest/README bugtest/printf.c bugtest/scanf.c \ X bugtest/mscbug.c term/README \ X linkopt.vms buildvms.com X# PC-specific files XPC = corgraph.asm corplot.c header.mac hrcgraph.asm lineproc.mac \ X linkopt.msc linkopt.tc makefile.msc makefile.tc pcgraph.asm X# Documentation and help files XDOCS1 = docs/Makefile docs/README docs/checkdoc.c docs/doc2gih.c \ X docs/doc2hlp.c docs/doc2hlp.com docs/doc2ms.c docs/doc2tex.c \ X docs/gnuplot.1 docs/lasergnu.1 \ X docs/titlepage.ms docs/titlepage.tex XDOCS2 = docs/gnuplot.doc XDOCS3 = docs/latextut/Makefile docs/latextut/eg1.plt \ X docs/latextut/eg2.plt docs/latextut/eg3.dat docs/latextut/eg3.plt \ X docs/latextut/eg4.plt docs/latextut/eg5.plt docs/latextut/eg6.plt \ X docs/latextut/header.tex docs/latextut/tutorial.tex X# gnutex->gnuplot translator XTSOURCE1 = translate/Makefile translate/README translate/command.c \ X translate/eval.c translate/gnut2p.1 translate/internal.c \ X translate/misc.c translate/parse.c translate/plot.c XTSOURCE2 = \ X translate/plot.h translate/scanner.c translate/standard.c \ X translate/test1 translate/test2 translate/util.c X X# -lplot if you have -DUNIXPLOT X# -lsuntool -lsunwindow -lpixrect if you have -DSUN X# -lgl_s if IRIS4D XLIBS = -lm -lplot X Xgnuplot: $(OBJS) version.o X cc $(CFLAGS) $(OBJS) version.o $(LIBS) -o gnuplot X Xdoc: X ( cd docs; make gnuplot.gih ) X Xtranslate: X (cd translate; make) X Xall: gnuplot doc X Xinstall: gnuplot doc man_install X cp gnuplot lasergnu $(DEST) X strip $(DEST)/gnuplot X (cd docs; make install-unix HELPDEST=$(HELPDEST)) X Xman_install: docs/gnuplot.1 docs/lasergnu.1 X cp docs/gnuplot.1 docs/lasergnu.1 $(MANDEST) X Xterm.o: $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) $(CSOURCE7) X cc $(CFLAGS) $(TERMFLAGS) -c term.c X Xversion.o: X cc $(CFLAGS) -DCONTACT=$(EMAIL) -c version.c X X$(OBJS): plot.h X Xcommand.o: X cc $(CFLAGS) -c command.c -DHELPFILE=\"$(HELPDEST)\" X Xcommand.o help.o misc.o: help.h X Xcommand.o graphics.o misc.o plot.o setshow.o: setshow.h X XSOURCES=plot.h help.h setshow.h $(CSOURCE1) $(CSOURCE2) $(CSOURCE3) \ X $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) $(CSOURCE7) X Xlint: X lint -hx $(CSOURCE1) $(CSOURCE2) $(CSOURCE3) $(CSOURCE4) X Xclean: X rm -f *.o *~ term/*~ X (cd docs; make clean) X (cd docs/latextut; make clean) X (cd translate; make clean) X Xspotless: X rm -f *.o *~ term/*~ TAGS gnuplot X (cd docs; make clean) X (cd docs/latextut; make spotless) X (cd translate; make spotless) X Xshar: gnuplot.sh00 gnuplot.sh01 gnuplot.sh02 gnuplot.sh03 gnuplot.sh04 \ X gnuplot.sh05 gnuplot.sh06 gnuplot.sh07 gnuplot.sh08 \ X gnuplot.sh09 gnuplot.sh10 gnuplot.sh11 gnuplot.sh12 \ X gnuplot.sh13 gnuplot.sh14 X Xgnuplot.sh00: X echo '#!/bin/sh' > gnuplot.sh00 X echo '# This is a shell file to make directories' >> gnuplot.sh00 X echo mkdir $(DIRS) >> gnuplot.sh00 X Xgnuplot.sh01: $(ETC) X shar $(ETC) > gnuplot.sh01 X Xgnuplot.sh02: $(DOCS1) X shar $(DOCS1) > gnuplot.sh02 X Xgnuplot.sh03: $(DOCS2) X shar $(DOCS2) > gnuplot.sh03 X Xgnuplot.sh04: $(DOCS3) X shar $(DOCS3) > gnuplot.sh04 X Xgnuplot.sh05: $(CSOURCE1) X shar $(CSOURCE1) > gnuplot.sh05 X Xgnuplot.sh06: $(CSOURCE2) X shar $(CSOURCE2) > gnuplot.sh06 X Xgnuplot.sh07: $(CSOURCE3) X shar $(CSOURCE3) > gnuplot.sh07 X Xgnuplot.sh08: $(CSOURCE4) X shar $(CSOURCE4) > gnuplot.sh08 X Xgnuplot.sh09: $(CSOURCE5) X shar $(CSOURCE5) > gnuplot.sh09 X Xgnuplot.sh10: $(CSOURCE6) X shar $(CSOURCE6) > gnuplot.sh10 X Xgnuplot.sh11: $(CSOURCE7) X shar $(CSOURCE7) > gnuplot.sh11 X Xgnuplot.sh12: $(PC) X shar $(PC) > gnuplot.sh12 X Xgnuplot.sh13: $(TSOURCE1) X shar $(TSOURCE1) > gnuplot.sh13 X Xgnuplot.sh14: $(TSOURCE2) X shar $(TSOURCE2) > gnuplot.sh14 X *-*-END-of-makefile.unx-*-* echo x - makefile.vms sed 's/^X//' >makefile.vms <<'*-*-END-of-makefile.vms-*-*' X# X# GNUPLOT Makefile X# for VMS X# X# use with the MAKE that was posted by Tony Ivanov (tony@gvgpvd.GVG.TEK.COM) X# in comp.os.vms on 5 December 1988 X# X X# NOOP NO Optimiser XCFLAGS = /NOOP X X# -D<terminal> in TERMFLAGS iff you wish to support <terminal> X# -DAED AED 512 and AED 767 X# -DBITGRAPH BBN BitGraph X# -DDXY800A Roland DXY800A plotter X# -DEPSON Epson LX-800, Star NL-10, NX-1000 and lots of others X# -DFIG Fig graphics language (requires object.h from TransFig) X# -DHP2648 HP2648, HP2647 X# -DHP26 HP2623A and maybe others X# -DHP75 HP7580, and probably other HPs X# -DHPGL HP7475 and (hopefully) lots of others X# -DHPLJET HP Laserjet X# -DIMAGEN Imagen laser printers (300dpi) (requires -Iterm also) X# -DIRIS4D IRIS4D series computer X# -DKERMIT MS-Kermit Tektronix 4010 emulator X# -DLATEX LATEX picture environment X# -DPOSTSCRIPT Postscript X# -DPROPRINTER IBM Proprinter X# -DQMS QMS/QUIC laserprinter (Talaris 1200 and others) X# -DREGIS ReGis graphics (vt125, vt220, vt240, Gigis...) X# -DSELANAR Selanar X# -DTEK Tektronix 4010, and probably others X# -DUNIXPC unixpc (ATT 3b1 or ATT 7300) X# -DUNIXPLOT unixplot X# -DV384 Vectrix 384 and tandy color printer X X XTERMFLAGS = /define=(AED,BITGRAPH,DXY800A,HP2648,HP26,HP75,HPGL, \ X KERMIT,LATEX,POSTSCRIPT,QMS,REGIS,SELANAR,TEK,V384) X XOBJS = command.obj,eval.obj,graphics.obj,internal.obj, \ X misc.obj,parse.obj,plot.obj,scanner.obj,setshow.obj, \ X standard.obj,term.obj,util.obj,version.obj X XCSOURCE1 = command.c setshow.c XCSOURCE2 = help.c graphics.c internal.c XCSOURCE3 = misc.c eval.c parse.c plot.c scanner.c standard.c XCSOURCE4 = term.c util.c version.c XCSOURCE5 = [.term]aed.trm [.term]dxy.trm [.term]epson.trm [.term]font5x7.trm \ X [.term]hp26.trm [.term]hp2648.trm [.term]hpgl.trm \ X [.term]hpljet.trm [.term]iris4d.trm [.term]latex.trm XCSOURCE6 = [.term]post.trm [.term]pc.trm [.term]qms.trm [.term]regis.trm \ X [.term]tek.trm [.term]unixpc.trm [.term]unixplot.trm [.term]v384.trm \ X [.term]imPcodes.h [.term]imagen.trm [.term]object.h [.term]fig.trm X X Xall : gnuplot.exe gnuplot.hlp gnuplot.hlb X X Xgnuplot.exe : $(OBJS) X link /exe=gnuplot $(OBJS) ,linkopt.vms/opt X Xgnuplot.hlp : doc2hlp.exe [.docs]gnuplot.doc [.docs]doc2hlp.com X $$@[.docs]doc2hlp.com X Xgnuplot.hlb : gnuplot.hlp X library/create/help gnuplot.hlb gnuplot.hlp X Xdoc2hlp.exe: [.docs]doc2hlp.c X cc [.docs]doc2hlp.c X link doc2hlp,linkopt.vms/opt X Xterm.obj : $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) X cc $(CFLAGS) $(TERMFLAGS) term.c X X$(OBJS) : plot.h X Xcommand.obj help.obj misc.obj : help.h X Xcommand.obj graphics.obj misc.obj plot.obj setshow.obj : setshow.h X Xclean : X purge/log X del/log *.obj;* *-*-END-of-makefile.vms-*-* echo x - makefile.3b1 sed 's/^X//' >makefile.3b1 <<'*-*-END-of-makefile.3b1-*-*' X# X# GNUPLOT Makefile for ATT 3b1 (ATT 7300 or the "unix-PC") X# X# Note: this makefile uses the shared library X# X X# directory where to install executables on 'make install' XDEST=/usr/local/bin X# directory for installing man page on 'make man_install' XMANDEST=/usr/man/manl X# where to install help file gnuplot.gih X#HELPDEST=/usr/local/lib/gnuplot.gih XHELPDEST=docs/gnuplot.gih X X# -DVFORK if you have vfork() X# -DBCOPY if your memcpy() is called bcopy() (a Berkeleyism, right?) X# -DBZERO if you need to use bzero() (another BSD feature) instead of memset() X# -DNOCOPY if you don't have a memcpy() by any name X# -DGAMMA if you've got gamma(3) X# -O if you trust your compiler's optimizer XCC = cc XCFLAGS = -DGAMMA -O #-g X X# -D<terminal> in TERMFLAGS iff you wish to support <terminal> X# -DAED AED 512 and AED 767 X# -DBITGRAPH BBN BitGraph X# -DDXY800A Roland DXY800A plotter X# -DEPSON Epson LX-800, Star NL-10, NX-1000 and lots of others X# -DFIG Fig graphics language (requires object.h from TransFig) X# -DHP2648 HP2648, HP2647 X# -DHP26 HP2623A and maybe others X# -DHP75 HP7580, and probably other HPs X# -DHPGL HP7475 and (hopefully) lots of others X# -DHPLJET HP Laserjet X# -DIMAGEN Imagen laser printers (300dpi) (requires -Iterm also) X# -DIRIS4D IRIS4D series computer X# -DKERMIT MS-Kermit Tektronix 4010 emulator X# -DLATEX LATEX picture environment X# -DPOSTSCRIPT Postscript X# -DPROPRINTER IBM Proprinter X# -DQMS QMS/QUIC laserprinter (Talaris 1200 and others) X# -DREGIS ReGis graphics (vt125, vt220, vt240, Gigis...) X# -DSELANAR Selanar X# -DTEK Tektronix 4010, and probably others X# -DSUN Sun Microsystems Workstation X# -DUNIXPC unixpc (ATT 3b1 or ATT 7300) X# -DUNIXPLOT unixplot X# -DV384 Vectrix 384 and tandy color printer X XTERMFLAGS = -Iterm -DNEC -DUNIXPLOT -DUNIXPC X XOBJS = command.o eval.o graphics.o help.o internal.o misc.o parse.o\ X plot.o scanner.o setshow.o standard.o term.o util.o X XDIRS = term demo bugtest docs docs/latextut translate XCSOURCE1 = command.c setshow.c XCSOURCE2 = help.c graphics.c internal.c XCSOURCE3 = misc.c eval.c parse.c plot.c scanner.c standard.c XCSOURCE4 = term.c util.c version.c XCSOURCE5 = term/aed.trm term/dxy.trm term/epson.trm term/font5x7.trm \ X term/hp26.trm term/hp2648.trm term/hpgl.trm \ X term/hpljet.trm term/iris4d.trm term/latex.trm term/sun.trm XCSOURCE6 = term/post.trm term/pc.trm term/qms.trm term/regis.trm \ X term/tek.trm term/unixpc.trm term/unixplot.trm term/v384.trm \ X term/imPcodes.h term/imagen.trm term/object.h term/fig.trm X# not C code, but still needed XETC = README README.gnutex makefile.unx makefile.vms linkopt.vms \ X makefile.3b1 plot.h help.h setshow.h lasergnu \ X demo/1.dat demo/2.dat demo/3.dat demo/controls.demo \ X demo/simple.demo demo/polar.demo demo/electron.demo \ X bugtest/README bugtest/printf.c bugtest/scanf.c \ X bugtest/mscbug.c term/README X# PC-specific files XPC = corgraph.asm corplot.c header.mac hrcgraph.asm lineproc.mac \ X linkopt.msc linkopt.tc makefile.msc makefile.tc pcgraph.asm X# Documentation and help files XDOCS1 = docs/Makefile docs/README docs/checkdoc.c docs/doc2gih.c \ X docs/doc2hlp.c docs/doc2hlp.com docs/doc2ms.c docs/doc2tex.c \ X docs/gnuplot.1 docs/lasergnu.1 \ X docs/titlepage.ms docs/titlepage.tex XDOCS2 = docs/gnuplot.doc XDOCS3 = docs/latextut/Makefile docs/latextut/eg1.plt \ X docs/latextut/eg2.plt docs/latextut/eg3.dat docs/latextut/eg3.plt \ X docs/latextut/eg4.plt docs/latextut/eg5.plt docs/latextut/eg6.plt \ X docs/latextut/header.tex docs/latextut/tutorial.tex X# gnutex->gnuplot translator XTSOURCE1 = translate/Makefile translate/README translate/command.c \ X translate/eval.c translate/gnut2p.1 translate/internal.c \ X translate/misc.c translate/parse.c translate/plot.c \ X translate/plot.h translate/scanner.c translate/standard.c \ X translate/test1 translate/test2 translate/util.c X X# -lplot iff you have -DUNIXPLOT X# -lsuntool -lsunwindow -lpixrect iff you have -DSUN X# -lgl_s if IRIS4D XLIBS = -lm -lplot X Xgnuplot: $(OBJS) version.o X ld /lib/crt0s.o /lib/shlib.ifile $(OBJS) version.o $(LIBS) -o gnuplot X Xdoc: X ( cd docs; make gnuplot.gih ) X Xtranslate: X (cd translate; make) X Xall: gnuplot doc X Xinstall: gnuplot doc man_install X cp gnuplot lasergnu $(DEST) X strip $(DEST)/gnuplot X (cd docs; make install-unix HELPDEST=$(HELPDEST)) X Xman_install: docs/gnuplot.1 docs/lasergnu.1 X cp docs/gnuplot.1 docs/lasergnu.1 $(MANDEST) X Xterm.o: $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) X $(CC) $(CFLAGS) $(TERMFLAGS) -c term.c X X$(OBJS): plot.h X Xcommand.o: X cc $(CFLAGS) -c command.c -DHELPFILE=\"$(HELPDEST)\" X Xcommand.o help.o misc.o: help.h X Xcommand.o graphics.o misc.o plot.o setshow.o: setshow.h X XSOURCES=plot.h help.h setshow.h $(CSOURCE1) $(CSOURCE2) $(CSOURCE3) \ X $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) X Xlint: X lint -hx $(CSOURCE1) $(CSOURCE2) $(CSOURCE3) $(CSOURCE4) X Xclean: X rm -f *.o *~ term/*~ X (cd docs; make clean) X (cd docs/latextut; make clean) X (cd translate; make clean) X Xspotless: X rm -f *.o *~ term/*~ TAGS gnuplot X (cd docs; make clean) X (cd docs/latextut; make spotless) X (cd translate; make spotless) *-*-END-of-makefile.3b1-*-* echo x - makefile.ult sed 's/^X//' >makefile.ult <<'*-*-END-of-makefile.ult-*-*' X# X# GNUPLOT Makefile for Ultrix X# X# Note: Ultrix standard cc compiler has a bug with static structure X# initializations [such as struct ts {int x;} tb[]={{100*0.32}};] X# and so this makefile uses vcc instead. If this isn't possible, X# and you get "line xx: illegal initialization", then you'll have X# to go into the .trm include file and compute all the floating point X# defines with a calculator. X X# directory where to install executables on 'make install' XDEST=/usr/local/bin X# directory for installing man page on 'make man_install' XMANDEST=/usr/man/manl X# where to install help file gnuplot.gih X#HELPDEST=/usr/local/lib/gnuplot.gih XHELPDEST=docs/gnuplot.gih X X# -DVFORK if you have vfork() X# -DBCOPY if your memcpy() is called bcopy() (a Berkeleyism, right?) X# -DBZERO if you need to use bzero() (another BSD feature) instead of memset() X# -DNOCOPY if you don't have a memcpy() by any name X# -DGAMMA if you've got gamma(3) X# -O if you trust your compiler's optimizer XCFLAGS = -DVFORK -DBCOPY -DBZERO -DGAMMA -O #-gx X X# Not wise to use vcc for everything because math.h isn't compatible with X# vcc. (How can they get away with this?) X#CC = vcc X X# -D<terminal> in TERMFLAGS iff you wish to support <terminal> X# -DAED AED 512 and AED 767 X# -DBITGRAPH BBN BitGraph X# -DDXY800A Roland DXY800A plotter X# -DEPSON Epson LX-800, Star NL-10, NX-1000 and lots of others X# -DFIG Fig graphics language (requires object.h from TransFig) X# -DHP2648 HP2648, HP2647 X# -DHP26 HP2623A and maybe others X# -DHP75 HP7580, and probably other HPs X# -DHPGL HP7475 and (hopefully) lots of others X# -DHPLJET HP Laserjet X# -DIMAGEN Imagen laser printers (300dpi) (requires -Iterm also) X# -DIRIS4D IRIS4D series computer X# -DKERMIT MS-Kermit Tektronix 4010 emulator X# -DLATEX LATEX picture environment X# -DPOSTSCRIPT Postscript X# -DPROPRINTER IBM Proprinter X# -DQMS QMS/QUIC laserprinter (Talaris 1200 and others) X# -DREGIS ReGis graphics (vt125, vt220, vt240, Gigis...) X# -DSELANAR Selanar X# -DTEK Tektronix 4010, and probably others X# -DSUN Sun Microsystems Workstation X# -DUNIXPC unixpc (ATT 3b1 or ATT 7300) X# -DUNIXPLOT unixplot X# -DV384 Vectrix 384 and tandy color printer X XTERMFLAGS = -Iterm -DAED -DBITGRAPH -DDXY800A -DEPSON -DHP2648 \ X -DHP26 -DHP75 -DHPGL -DHPLJET -DIMAGEN -DKERMIT -DLATEX \ X -DPOSTSCRIPT -DPROPRINTER -DQMS -DREGIS -DSELANAR -DTEK \ X -DUNIXPLOT -DV384 X X#TERMFLAGS = -Iterm -DIMAGEN X XOBJS = command.o eval.o graphics.o help.o internal.o misc.o parse.o\ X plot.o scanner.o setshow.o standard.o term.o util.o X XDIRS = term demo bugtest docs docs/latextut translate XCSOURCE1 = command.c setshow.c XCSOURCE2 = help.c graphics.c internal.c XCSOURCE3 = misc.c eval.c parse.c plot.c scanner.c standard.c XCSOURCE4 = term.c util.c version.c XCSOURCE5 = term/aed.trm term/dxy.trm term/epson.trm term/font5x7.trm \ X term/hp26.trm term/hp2648.trm term/hpgl.trm \ X term/hpljet.trm term/iris4d.trm term/latex.trm term/sun.trm XCSOURCE6 = term/post.trm term/pc.trm term/qms.trm term/regis.trm \ X term/tek.trm term/unixpc.trm term/unixplot.trm term/v384.trm \ X term/imPcodes.h term/imagen.trm term/object.h term/fig.trm X# not C code, but still needed XETC = README README.gnutex makefile.unx makefile.vms linkopt.vms \ X makefile.3b1 plot.h help.h setshow.h lasergnu \ X demo/1.dat demo/2.dat demo/3.dat demo/controls.demo \ X demo/simple.demo demo/polar.demo demo/electron.demo \ X bugtest/README bugtest/printf.c bugtest/scanf.c \ X bugtest/mscbug.c term/README X# PC-specific files XPC = corgraph.asm corplot.c header.mac hrcgraph.asm lineproc.mac \ X linkopt.msc linkopt.tc makefile.msc makefile.tc pcgraph.asm X# Documentation and help files XDOCS1 = docs/Makefile docs/README docs/checkdoc.c docs/doc2gih.c \ X docs/doc2hlp.c docs/doc2hlp.com docs/doc2ms.c docs/doc2tex.c \ X docs/gnuplot.1 docs/lasergnu.1 \ X docs/titlepage.ms docs/titlepage.tex XDOCS2 = docs/gnuplot.doc XDOCS3 = docs/latextut/Makefile docs/latextut/eg1.plt \ X docs/latextut/eg2.plt docs/latextut/eg3.dat docs/latextut/eg3.plt \ X docs/latextut/eg4.plt docs/latextut/eg5.plt docs/latextut/eg6.plt \ X docs/latextut/header.tex docs/latextut/tutorial.tex X# gnutex->gnuplot translator XTSOURCE1 = translate/Makefile translate/README translate/command.c \ X translate/eval.c translate/gnut2p.1 translate/internal.c \ X translate/misc.c translate/parse.c translate/plot.c \ X translate/plot.h translate/scanner.c translate/standard.c \ X translate/test1 translate/test2 translate/util.c X X# -lplot iff you have -DUNIXPLOT X# -lsuntool -lsunwindow -lpixrect iff you have -DSUN X# -lgl_s if IRIS4D XLIBS = -lm -lplot X Xgnuplot: $(OBJS) version.o X vcc $(CFLAGS) $(OBJS) version.o $(LIBS) -o gnuplot X Xdoc: X ( cd docs; make gnuplot.gih ) X Xtranslate: X (cd translate; make) X Xall: gnuplot doc X Xinstall: gnuplot doc man_install X cp gnuplot lasergnu $(DEST) X strip $(DEST)/gnuplot X (cd docs; make install-unix HELPDEST=$(HELPDEST)) X Xman_install: docs/gnuplot.1 docs/lasergnu.1 X cp docs/gnuplot.1 docs/lasergnu.1 $(MANDEST) X Xterm.o: $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) X vcc $(CFLAGS) $(TERMFLAGS) -c term.c X X$(OBJS): plot.h X Xcommand.o: X cc $(CFLAGS) -c command.c -DHELPFILE=\"$(HELPDEST)\" X Xcommand.o help.o misc.o: help.h X Xcommand.o graphics.o misc.o plot.o setshow.o: setshow.h X XSOURCES=plot.h help.h setshow.h $(CSOURCE1) $(CSOURCE2) $(CSOURCE3) \ X $(CSOURCE4) $(CSOURCE5) $(CSOURCE6) X Xlint: X lint -hx $(CSOURCE1) $(CSOURCE2) $(CSOURCE3) $(CSOURCE4) X Xclean: X rm -f *.o *~ term/*~ X (cd docs; make clean) X (cd docs/latextut; make clean) X (cd translate; make clean) X Xspotless: X rm -f *.o *~ term/*~ TAGS gnuplot X (cd docs; make clean) X (cd docs/latextut; make spotless) X (cd translate; make spotless) *-*-END-of-makefile.ult-*-* echo x - plot.h sed 's/^X//' >plot.h <<'*-*-END-of-plot.h-*-*' X/* GNUPLOT - plot.h */ X/* X * Copyright (C) 1986, 1987, 1990 Thomas Williams, Colin Kelley X * X * Permission to use, copy, and distribute this software and its X * documentation for any purpose with or without fee is hereby granted, X * provided that the above copyright notice appear in all copies and X * that both that copyright notice and this permission notice appear X * in supporting documentation. X * X * Permission to modify the software is granted, but not the right to X * distribute the modified code. Modifications are to be distributed X * as patches to released version. X * X * This software is provided "as is" without express or implied warranty. X * X * X * AUTHORS X * X * Original Software: X * Thomas Williams, Colin Kelley. X * X * Gnuplot 2.0 additions: X * Russell Lang, Dave Kotz, John Campbell. X * X * send your comments or suggestions to (pixar!info-gnuplot@sun.com). X * X */ X X X#define PROGRAM "G N U P L O T" X#define PROMPT "gnuplot> " X#define SHELL "/bin/sh" /* used if SHELL env variable not set */ X X#define SAMPLES 160 /* default number of samples for a plot */ X#define ZERO 1e-8 /* default for 'zero' set option */ X X#ifndef TERM X/* default terminal is "unknown"; but see init_terminal */ X#define TERM "unknown" X#endif X X#define TRUE 1 X#define FALSE 0 X X X#define Pi 3.141592653589793 X X X#define MAX_POINTS 1 X#define MAX_LINE_LEN 1024 /* maximum number of chars allowed on line */ X#define MAX_TOKENS 200 X#define MAX_ID_LEN 50 /* max length of an identifier */ X X X#define MAX_AT_LEN 150 /* max number of entries in action table */ X#define STACK_DEPTH 100 X#define NO_CARET (-1) X X X X X#ifdef vms X#define OS "VMS " X#endif X X X#ifdef unix X#define OS "unix " X#endif X X X#ifdef MSDOS X#define OS "MS-DOS " X#endif X X X#ifndef OS X#define OS "" X#endif X X X/* X * Note about VERYLARGE: This is the upper bound double (or float, if PC) X * numbers. This flag indicates very large numbers. It doesn't have to X * be the absolutely biggest number on the machine. X * If your machine doesn't have HUGE, or float.h, X * define VERYLARGE here. X * X * example: X#define VERYLARGE 1e38 X */ X X#ifdef PC X#include <float.h> X#define VERYLARGE FLT_MAX X#else X#ifdef vms X#include <float.h> X#define VERYLARGE DBL_MAX X#else X#define VERYLARGE HUGE X#endif X#endif X X X#define END_OF_COMMAND (c_token >= num_tokens || equals(c_token,";")) X X X X X#ifdef vms X X X#define is_comment(c) ((c) == '#' || (c) == '!') X#define is_system(c) ((c) == '$') X X X#else /* vms */ X X X#define is_comment(c) ((c) == '#') X#define is_system(c) ((c) == '!') X X X#endif /* vms */ X X X/* X * If you're memcpy() has another name, define it below as bcopy() is. X * If you don't have a memcpy(): X#define NOCOPY X */ X X X#ifdef BCOPY X#define memcpy(dest,src,len) bcopy(src,dest,len) X#endif /* BCOPY */ X X X#ifdef vms X#define memcpy(dest,src,len) lib$movc3(&len,src,dest) X#endif /* vms */ X X X/* X * If you don't have BZERO, define it below. X */ X#ifndef BZERO X#define bzero(dest,len) (void)(memset(dest, (char)NULL, len)) X#endif /* BZERO */ X X X#define top_of_stack stack[s_p] X X Xtypedef int BOOLEAN; X X#ifdef __ZTC__ Xtypedef int (*FUNC_PTR)(...); X#else Xtypedef int (*FUNC_PTR)(); X#endif X X Xenum operators { X PUSH, PUSHC, PUSHD, CALL, LNOT, BNOT, UMINUS, LOR, LAND, BOR, XOR, X BAND, EQ, NE, GT, LT, GE, LE, PLUS, MINUS, MULT, DIV, MOD, POWER, X FACTORIAL, BOOL, JUMP, JUMPZ, JUMPNZ, JTERN, SF_START X}; X X X#define is_jump(operator) ((operator) >=(int)JUMP && (operator) <(int)SF_START) X X Xenum DATA_TYPES { X INT, CMPLX X}; X X Xenum PLOT_TYPE { X FUNC, DATA X}; X X Xenum PLOT_STYLE { X LINES, POINTS, IMPULSES, LINESPOINTS, DOTS X}; X Xenum JUSTIFY { X LEFT, CENTRE, RIGHT X}; X Xstruct cmplx { X double real, imag; X}; X X Xstruct value { X enum DATA_TYPES type; X union { X int int_val; X struct cmplx cmplx_val; X } v; X}; X X Xstruct lexical_unit { /* produced by scanner */ X BOOLEAN is_token; /* true if token, false if a value */ X struct value l_val; X int start_index; /* index of first char in token */ X int length; /* length of token in chars */ X}; X X Xstruct ft_entry { /* standard/internal function table entry */ X char *f_name; /* pointer to name of this function */ X FUNC_PTR func; /* address of function to call */ X}; X X Xstruct udft_entry { /* user-defined function table entry */ X struct udft_entry *next_udf; /* pointer to next udf in linked list */ X char udf_name[MAX_ID_LEN+1]; /* name of this function entry */ X struct at_type *at; /* pointer to action table to execute */ X char *definition; /* definition of function as typed */ X struct value dummy_value; /* current value of dummy variable */ X}; X X Xstruct udvt_entry { /* user-defined value table entry */ X struct udvt_entry *next_udv; /* pointer to next value in linked list */ X char udv_name[MAX_ID_LEN+1]; /* name of this value entry */ X BOOLEAN udv_undef; /* true if not defined yet */ X struct value udv_value; /* value it has */ X}; X X Xunion argument { /* p-code argument */ X int j_arg; /* offset for jump */ X struct value v_arg; /* constant value */ X struct udvt_entry *udv_arg; /* pointer to dummy variable */ X struct udft_entry *udf_arg; /* pointer to udf to execute */ X}; X X Xstruct at_entry { /* action table entry */ X enum operators index; /* index of p-code function */ X union argument arg; X}; X X Xstruct at_type { X int a_count; /* count of entries in .actions[] */ X struct at_entry actions[MAX_AT_LEN]; X /* will usually be less than MAX_AT_LEN is malloc()'d copy */ X}; X X X/* Defines the type of a coordinate */ X/* INRANGE and OUTRANGE points have an x,y point associated with them */ Xenum coord_type { X INRANGE, /* inside plot boundary */ X OUTRANGE, /* outside plot boundary, but defined */ X UNDEFINED /* not defined at all */ X}; X Xstruct coordinate { X enum coord_type type; /* see above */ X#ifdef PC X float x, y; /* memory is tight on PCs! */ X#else X double x, y; X#endif /* PC */ X}; X X Xstruct curve_points { X struct curve_points *next_cp; /* pointer to next plot in linked list */ X enum PLOT_TYPE plot_type; X enum PLOT_STYLE plot_style; X char *title; X int line_type; X int point_type; X int p_count; /* count of points in .points[] */ X struct coordinate points[MAX_POINTS]; X /* will usually be less in malloc()'d copy */ X}; X X Xstruct termentry { X char *name; X char *description; X unsigned int xmax,ymax,v_char,h_char,v_tic,h_tic; X FUNC_PTR init,reset,text,scale,graphics,move,vector,linetype, X put_text,text_angle,justify_text,point,arrow; X}; X X Xstruct text_label { X struct text_label *next; /* pointer to next label in linked list */ X int tag; /* identifies the label */ X double x,y; X enum JUSTIFY pos; X char text[MAX_LINE_LEN+1]; X}; X Xstruct arrow_def { X struct arrow_def *next; /* pointer to next arrow in linked list */ X int tag; /* identifies the arrow */ X double sx,sy; /* start position */ X double ex,ey; /* end position */ X}; X X/* Tic-mark labelling definition; see set xtics */ Xstruct ticdef { X int type; /* one of three values below */ X#define TIC_COMPUTED 1 /* default; gnuplot figures them */ X#define TIC_SERIES 2 /* user-defined series */ X#define TIC_USER 3 /* user-defined points */ X union { X struct { /* for TIC_SERIES */ X double start, incr; X double end; /* ymax, if VERYLARGE */ X } series; X struct ticmark *user; /* for TIC_USER */ X } def; X}; X X/* Defines one ticmark for TIC_USER style. X * If label==NULL, the value is printed with the usual format string. X * else, it is used as the format string (note that it may be a constant X * string, like "high" or "low"). X */ Xstruct ticmark { X double position; /* where on axis is this */ X char *label; /* optional (format) string label */ X struct ticmark *next; /* linked list */ X}; X X/* X * SS$_NORMAL is "normal completion", STS$M_INHIB_MSG supresses X X * printing a status message. X * SS$_ABORT is the general abort status code. X from: Martin Minow X decvax!minow X */ X#ifdef vms X#include <ssdef.h> X#include <stsdef.h> X#define IO_SUCCESS (SS$_NORMAL | STS$M_INHIB_MSG) X#define IO_ERROR SS$_ABORT X#endif /* vms */ X X X#ifndef IO_SUCCESS /* DECUS or VMS C will have defined these already */ X#define IO_SUCCESS 0 X#endif X#ifndef IO_ERROR X#define IO_ERROR 1 X#endif X X/* Some key global variables */ Xextern BOOLEAN screen_ok; Xextern BOOLEAN term_init; Xextern BOOLEAN undefined; Xextern struct termentry term_tbl[]; X Xextern char *alloc(); *-*-END-of-plot.h-*-* echo x - help.h sed 's/^X//' >help.h <<'*-*-END-of-help.h-*-*' X/* Exit status returned by help() */ X#define H_FOUND 0 /* found the keyword */ X#define H_NOTFOUND 1 /* didn't find the keyword */ X#define H_ERROR (-1) /* didn't find the help file */ X Xextern void FreeHelp(); /* use this if you need memory */ *-*-END-of-help.h-*-* echo x - setshow.h sed 's/^X//' >setshow.h <<'*-*-END-of-setshow.h-*-*' X/* GNUPLOT - setshow.h */ X/* X * Copyright (C) 1986, 1987, 1990 Thomas Williams, Colin Kelley X * X * Permission to use, copy, and distribute this software and its X * documentation for any purpose with or without fee is hereby granted, X * provided that the above copyright notice appear in all copies and X * that both that copyright notice and this permission notice appear X * in supporting documentation. X * X * Permission to modify the software is granted, but not the right to X * distribute the modified code. Modifications are to be distributed X * as patches to released version. X * X * This software is provided "as is" without express or implied warranty. X * X * X * AUTHORS X * X * Original Software: X * Thomas Williams, Colin Kelley. X * X * Gnuplot 2.0 additions: X * Russell Lang, Dave Kotz, John Campbell. X * X * send your comments or suggestions to (pixar!info-gnuplot@sun.com). X * X */ X X/* X * global variables to hold status of 'set' options X * X */ Xextern BOOLEAN autoscale_x; Xextern BOOLEAN autoscale_y; Xextern BOOLEAN autoscale_lx; Xextern BOOLEAN autoscale_ly; Xextern BOOLEAN clip_points; Xextern BOOLEAN clip_lines1; Xextern BOOLEAN clip_lines2; Xextern char dummy_var[]; Xextern char xformat[]; Xextern char yformat[]; Xextern enum PLOT_STYLE data_style, func_style; Xextern BOOLEAN grid; Xextern int key; Xextern double key_x, key_y; /* user specified position for key */ Xextern BOOLEAN log_x, log_y; Xextern FILE* outfile; Xextern char outstr[]; Xextern BOOLEAN polar; Xextern int samples; Xextern float xsize; /* scale factor for size */ Xextern float ysize; /* scale factor for size */ Xextern int term; /* unknown term is 0 */ Xextern char title[]; Xextern char xlabel[]; Xextern char ylabel[]; Xextern double xmin, xmax, ymin, ymax; Xextern double loff, roff, toff, boff; Xextern double zero; /* zero threshold, not 0! */ X Xextern BOOLEAN xtics; Xextern BOOLEAN ytics; X Xextern struct ticdef xticdef; Xextern struct ticdef yticdef; X Xextern BOOLEAN tic_in; X Xextern struct text_label *first_label; Xextern struct arrow_def *first_arrow; X X/* The set and show commands, in setshow.c */ Xextern void set_command(); Xextern void show_command(); X/* and some accessible support functions */ Xextern enum PLOT_STYLE get_style(); Xextern BOOLEAN load_range(); Xextern void show_version(); *-*-END-of-setshow.h-*-* echo x - lasergnu sed 's/^X//' >lasergnu <<'*-*-END-of-lasergnu-*-*' X#!/bin/csh -f X# X# Print gnuplot output on an Imagen or Postscript laser printer. X Xset print_banner = on # Print a banner page unless told otherwise. Xset input_files = () # the plot input command files X X# Default printer set by shell variable LASER. Xif !($?LASER) then X set LASER = "imagen018" Xendif Xset printer = (-P$LASER) X X# File for plot commands, and for plot output Xset TMP=/tmp/plot$$ Xset outfile=$TMP.out # the output file Xonintr cleanup X X# default is Imagen mode for Imagen printer; see -p option Xset setterm="set terminal imagen" Xset LANG="-Limpress" X Xset usage="usage: lasergnu [-Pprinter] [-b] [-p] [-t title] [-f file] ['plot command']...." X X# Loop through the command-line arguments. X Xtop: X if ($#argv > 0) then X X switch ("$argv[1]") X X case -b*: # Do not print a banner page. X case -J*: # Compatible with imprint. X set print_banner = off X shift argv X goto top X X case -f?*: # Specify file containing plot commands X set input_files = ($input_files `echo $argv[1] | sed 's/^-f//'`) X shift argv X goto top X X case -f: # Specify file containing plot commands X shift argv X if ($#argv > 0) then X set input_files = ($input_files $argv[1]) X shift argv X else X echo "Usage: -f file ..." X echo "Type lasergnu -help for help." X exit (1) X endif X goto top X X case -t?*: # Specify title of plot X echo set title \""`echo $argv[1] | sed 's/^-t//'`"\" >> $TMP X shift argv X goto top X X case -t: # Specify title of plot X shift argv X if ($#argv > 0) then X echo set title \""$1"\" >> $TMP X shift argv X else X echo "Usage: -t title ..." X echo "Type lasergnu -help for help." X exit (1) X endif X goto top X case -help: X echo "$usage" X exit(1) X X case -P?*: # Set the printer, exactly as by itroff. X set printer = $argv[1] X shift argv X goto top X X case -P: # Set the printer, exactly as by itroff. X shift argv X if ($#argv > 0) then X set printer = (-P$argv[1]) X shift argv X else X echo "Usage: -P printer ..." X echo "Type lasergnu -help for help." X exit (1) X endif X goto top X X # use impress X case -I: X echo Imagen is the default mode now X shift argv X goto top X X # use postscript instead of impress language X case -p: X set setterm="set term postscript" X set LANG="-Lpostscript" X shift argv X goto top X X case -?*: X echo "I do not recognize option $argv[1]." X echo "$usage" X exit (1) X X default: X echo "$argv[1]" >> $TMP X shift argv X goto top X X endsw X endif X X# try to devine the printer type Xif ($printer =~ -Plw*) then X set setterm="set term postscript" X set LANG="-Lpostscript" Xendif X Xif ($printer =~ -Pim*) then X set setterm="set term imagen" X set LANG="-Limpress" Xendif X X# Set up input file Xecho $setterm > $TMP.plt Xecho set output \"$outfile\" >> $TMP.plt Xif (-e $TMP) cat $TMP >> $TMP.plt X X# If input file is specified AND command line contains plot commands, then X# do command line args first, then plot commands in input file. Xgnuplot $TMP.plt $input_files X Xif ($status == 0 && -e $outfile && ! -z $outfile) then X # The printer is whatever printer was last specified, X # or the default printer if none was specified. X if ($LANG == -Limpress) then X /usr/local/bin/ipr $LANG $printer \ X -D"jobheader $print_banner" \ X -D"pagereversal on" \ X -D"program lasergnu" $outfile X else if ($LANG == -Lpostscript) then X lpr $printer $outfile X endif Xelse X echo "lasergnu: error in plotting or empty plot; nothing printed." Xendif X Xcleanup: Xrm -f $TMP* $outfile *-*-END-of-lasergnu-*-* echo x - demo/1.dat sed 's/^X//' >demo/1.dat <<'*-*-END-of-demo/1.dat-*-*' X-20.000000 -3.041676 X-19.000000 -3.036427 X-18.000000 -3.030596 X-17.000000 -3.024081 X-16.000000 -3.016755 X-15.000000 -3.008456 X-14.000000 -2.998978 X-13.000000 -2.988049 X-12.000000 -2.975310 X-11.000000 -2.960273 X-10.000000 -2.942255 X-9.000000 -2.920278 X-8.000000 -2.892883 X-7.000000 -2.857799 X-6.000000 -2.811295 X-5.000000 -2.746802 X-4.000000 -2.651635 X-3.000000 -2.498092 X-2.000000 -2.214297 X-1.000000 -1.570796 X0.000000 0.000000 X1.000000 1.570796 X2.000000 2.214297 X3.000000 2.498092 X4.000000 2.651635 X5.000000 2.746802 X6.000000 2.811295 X7.000000 2.857799 X8.000000 2.892883 X9.000000 2.920278 X10.000000 2.942255 X11.000000 2.960273 X12.000000 2.975310 X13.000000 2.988049 X14.000000 2.998978 X15.000000 3.008456 X16.000000 3.016755 X17.000000 3.024081 X18.000000 3.030596 X19.000000 3.036427 *-*-END-of-demo/1.dat-*-* echo x - demo/2.dat sed 's/^X//' >demo/2.dat <<'*-*-END-of-demo/2.dat-*-*' X-20.000000 -6.083352 X-19.000000 -6.072853 X-18.000000 -6.061191 X-17.000000 -6.048162 X-16.000000 -6.033510 X-15.000000 -6.016913 X-14.000000 -5.997955 X-13.000000 -5.976098 X-12.000000 -5.950620 X-11.000000 -5.920546 X-10.000000 -5.884511 X-9.000000 -5.840556 X-8.000000 -5.785765 X-7.000000 -5.715597 X-6.000000 -5.622591 X-5.000000 -5.493603 X-4.000000 -5.303271 X-3.000000 -4.996183 X-2.000000 -4.428595 X-1.000000 -3.141593 X0.000000 0.000000 X1.000000 3.141593 X2.000000 4.428595 X3.000000 4.996183 X4.000000 5.303271 X5.000000 5.493603 X6.000000 5.622591 X7.000000 5.715597 X8.000000 5.785765 X9.000000 5.840556 X10.000000 5.884511 X11.000000 5.920546 X12.000000 5.950620 X13.000000 5.976098 X14.000000 5.997955 X15.000000 6.016913 X16.000000 6.033510 X17.000000 6.048162 X18.000000 6.061191 X19.000000 6.072853 *-*-END-of-demo/2.dat-*-* echo x - demo/3.dat sed 's/^X//' >demo/3.dat <<'*-*-END-of-demo/3.dat-*-*' X-20.000000 -9.125028 X-19.000000 -9.109280 X-18.000000 -9.091787 X-17.000000 -9.072243 X-16.000000 -9.050265 X-15.000000 -9.025369 X-14.000000 -8.996933 X-13.000000 -8.964147 X-12.000000 -8.925931 X-11.000000 -8.880819 X-10.000000 -8.826766 X-9.000000 -8.760835 X-8.000000 -8.678648 X-7.000000 -8.573396 X-6.000000 -8.433886 X-5.000000 -8.240405 X-4.000000 -7.954906 X-3.000000 -7.494275 X-2.000000 -6.642892 X-1.000000 -4.712389 X0.000000 0.000000 X1.000000 4.712389 X2.000000 6.642892 X3.000000 7.494275 X4.000000 7.954906 X5.000000 8.240405 X6.000000 8.433886 X7.000000 8.573396 X8.000000 8.678648 X9.000000 8.760835 X10.000000 8.826766 X11.000000 8.880819 X12.000000 8.925931 X13.000000 8.964147 X14.000000 8.996933 X15.000000 9.025369 X16.000000 9.050265 X17.000000 9.072243 X18.000000 9.091787 X19.000000 9.109280 *-*-END-of-demo/3.dat-*-* echo x - demo/controls.demo sed 's/^X//' >demo/controls.demo <<'*-*-END-of-demo/controls.demo-*-*' X# X# warning: this demo is SLOW on PCs without math coprocessors! X# X# From _Automatic_Control_Systems_, fourth ed., figure 6-14 X# transient response of a second-order system to a unit step input function X# Xdamp(t) = exp(-s*wn*t)/sqrt(1.0-s*s) Xper(t) = sin(wn*sqrt(1.0-s**2)*t - atan(-sqrt(1.0-s**2)/s)) Xc(t) = 1-damp(t)*per(t) X# X# wn is natural undamped frequency X# s is damping factor X# Xwn = 1.0 Xset xrange [0:13] Xset samples 50 Xset dummy t X# X# plot c(t) for several different damping factors s X# Xplot s=.1,c(t),s=.3,c(t),s=.5,c(t),s=.7,c(t),s=.9,c(t),s=1.0,c(t),s=1.5,c(t),s=2.0,c(t) Xpause -1 "Hit return to continue" X X# undo what we have done Xset xrange [-10:10] Xset autoscale xy Xset samples 160 Xset dummy x X *-*-END-of-demo/controls.demo-*-* echo x - demo/simple.demo sed 's/^X//' >demo/simple.demo <<'*-*-END-of-demo/simple.demo-*-*' X# X# Requires data files "[123].dat" from this directory, X# so change current working directory to this directory before running. X# gnuplot> set term <term-type> X# gnuplot> load 'simple.demo' X# Xset samples 50 Xplot [-10:10] sin(x),atan(x),cos(atan(x)) Xpause -1 "Hit return to continue" X Xset samples 100 Xplot [-pi/2:pi] cos(x),-(sin(x) > sin(x+1) ? sin(x) : sin(x+1)) Xpause -1 "Hit return to continue" X Xset samples 200 Xplot [-3:5] asin(x),acos(x) Xpause -1 "Hit return to continue" X Xplot [-30:20] besj0(x)*0.12e1 with impulses, (x**besj0(x))-2.5 with points Xpause -1 "Hit return to continue" X Xset samples 400 Xplot [-10:10] real(sin(x)**besj0(x)) Xpause -1 "Hit return to continue" X Xplot [-5*pi:5*pi] [-5:5] real(tan(x)/atan(x)), 1/x Xpause -1 "Hit return to continue" X Xset autoscale Xset samples 800 Xplot [-30:20] sin(x*20)*atan(x) Xpause -1 "Hit return to continue" X Xplot [-19:19] '1.dat'with impulses ,'2.dat' ,'3.dat' with lines Xpause -1 "Hit return to continue" X X# undo what we have done above Xset samples 160 Xset xrange [-10:10] Xset autoscale xy *-*-END-of-demo/simple.demo-*-* echo x - demo/polar.demo sed 's/^X//' >demo/polar.demo <<'*-*-END-of-demo/polar.demo-*-*' X# X# Show some of the new polar capabilities. X# Xset polar Xset dummy x Xset samples 160 Xset xrange [0:2*pi] Xset title "Three circles (with aspect ratio distortion)" Xplot .5,1,1.5 Xpause -1 "Hit return" Xset title "" X Xplot cos(2*x) Xpause -1 "Hit return" X Xplot 2*sqrt(cos(x)),-2*sqrt(cos(x)) Xpause -1 "Hit return" X Xset offset pi/4,pi/4,0,0 Xplot sin(4*x),cos(4*x) Xset offset 0,0,0,0 Xpause -1 "Hit return" X Xset yrange [-5:5] Xplot x/cos(3*x) Xpause -1 "Hit return" Xset autoscale X Xplot 1-sin(x) Xpause -1 "Hit return" X Xset xrange [0:12*pi] Xplot 2*x Xpause -1 "Hit return" X Xbutterfly(x)=exp(cos(x))-2*cos(4*x)+sin(x/12)**5 Xset samples 800 Xpause 0 "This is a big one (many samples), be patient..." Xset title "Butterfly" Xset nokey Xplot butterfly(x) Xpause -1 "Hit return" X X# undo what we've done above Xset nopolar Xset samples 160 Xset autoscale xy Xset title "" Xset offset 0,0,0,0 Xset key *-*-END-of-demo/polar.demo-*-* echo x - demo/electron.demo sed 's/^X//' >demo/electron.demo <<'*-*-END-of-demo/electron.demo-*-*' X# Electronics demo X# X# Bipolar Transistor (NPN) Mutual Characteristic XIe(Vbe)=Ies*exp(Vbe/kT_q) XIc(Vbe)=alpha*Ie(Vbe)+Ico Xalpha = 0.99 XIes = 4e-14 XIco = 1e-09 XkT_q = 0.025 Xset dummy Vbe Xset grid Xset offsets Xset nolog Xset nopolar Xset samples 160 Xset title "Mutual Characteristic of a Transistor" Xset xlabel "Vbe (base emmitter voltage)" Xset xrange [0 : 0.75] Xset ylabel "Ic (collector current)" Xset yrange [0 : 0.005] Xset key .2,.0045 Xset format y "%.4f" Xplot Ic(Vbe) Xset format "%g" X Xpause -1 "Hit return to continue" X X# Junction Field Effect Transistor (JFET) Mutual Characteristic X# drain current above pinch off XIda(Vd)=Ido*(1-Vg/Vp)**2 X# drain current below pinch off XIdb(Vd)=Ido*(2*Vd*(Vg-Vp)-Vd*Vd)/(Vp*Vp) X# drain current XId(Vd)= (Vd>Vg-Vp) ? Ida(Vd) : Idb(Vd) X# drain current at zero gate voltage XIdo = 2.5 X# pinch off voltage XVp = -1.25 X# gate voltage XVg = 0 Xset dummy Vd Xset nogrid Xset nokey Xset offsets 0, 1, 0, 0 Xset title "JFET Mutual Characteristic" Xset xlabel "Drain voltage Vd (V)" Xset xrange [0 : 4] Xset ylabel "Drain current Id (mA)" Xset yrange [0 : 5] Xset label "-0.5 Vp" at 4.1,0.625 Xset label "-0.25 Vp" at 4.1,1.4 Xset label "0" at 4.1,2.5 Xset label "Vg = 0.5 Vp" at 4.1,3.9 Xplot Vg=0.5*Vp,Id(Vd),Vg=0.25*Vp,Id(Vd),Vg=0,Id(Vd),Vg=-0.25*Vp,Id(Vd) Xset nolabel X Xpause -1 "Hit return to continue" X X# amplitude frequency response XA(jw) = ({0,1}*jw/({0,1}*jw+p1)) * (1/(1+{0,1}*jw/p2)) Xp1 = 10 Xp2 = 10000 Xset dummy jw Xset grid Xset key Xset logscale xy Xset offsets 0, 0, 0, 0 Xset title "Amplitude Frequency Response" Xset xlabel "jw (radians)" Xset xrange [1.1 : 90000.0] Xset ylabel "magnitude of A(jw)" Xset autoscale y Xplot abs(A(jw)) X Xpause -1 "Hit return" X X# phase frequency response Xset nolog y Xset logscale x Xset title "Phase Frequency Response" Xset ylabel "Phase of A(jw) (degrees)" Xplot 180/pi*arg(A(jw)) X Xpause -1 "Hit return" X X# undo what we've done Xset dummy x Xset nogrid Xset offsets 0,0,0,0 Xset title "" Xset ylabel "" Xset xlabel "" Xset xrange [-10:10] Xset autoscale xy Xset key Xset format xy "%g" Xset nolabel Xset nolog *-*-END-of-demo/electron.demo-*-* echo x - bugtest/README sed 's/^X//' >bugtest/README <<'*-*-END-of-bugtest/README-*-*' XThese two programs demonstrate some of the bugs in the SunOS stdio Xlibrary. The explanation, from `help bugs` in gnuplot: X X The most important known bug is actually in the stdio library for the X Sun4 operating system (SunOS Sys4-3.2). The "%g" format for `printf` X sometimes incorrectly prints numbers (e.g., 200000.0 as "2"). Thus, X tic mark labels may be incorrect on a Sun4 version of gnuplot. You X may work around it by rescaling your data or by using the `set format` X command to change the tic mark format to "%7.0f" or some other X appropriate format. This appears to have been fixed in SunOS 4.0. X X Another bug: On a Sun3 under SunOS 4.0, and on Sun4's under Sys4-3.2 X and SunOS 4.0, the `sscanf` routine incorrectly parses "00 12" with X the format "%f %f" and reads 0 and 0 instead of 0 and 12. This X affects data input. If your data file contains X coordinates that are X zero but are specified like '00', '000', etc, then you will read the X wrong Y values. Check your data files or do not use a Sun4 until they X fix the bug. It does NOT appear that this has been fixed in SunOS X 4.0, at least by 4.0.3. X X Xcompile with X cc printf.c -o printf X cc scanf.c -o scanf X XDavid Kotz XDecember 1989 X X---------------- X XThe program mscbug.c demonstrates a bug in Microsoft C 5.1. X XThe explanation, from `help bugs` in gnuplot: X Microsoft C 5.1 has a nasty bug associated with the %g format for X printf. When any of the formats "%.2g", "%.1g", "%.0g", "%.g" are X used, printf will incorrectly print numbers in the range 1e-4 to 1e-1. X Numbers that should be printed in the %e format are incorrectly X printed in the %f format, with the wrong number of zeros after the X decimal point. X To work around this problem, use the %e or %f formats explicitly. X Xcompile with X cl mscbug.c X XRussell Lang XJanuary 1990 *-*-END-of-bugtest/README-*-* echo x - bugtest/printf.c sed 's/^X//' >bugtest/printf.c <<'*-*-END-of-bugtest/printf.c-*-*' X#include <stdio.h> X Xmain() X{ X printf("%g %g %g %g %g %g %g\n", X 2., 20., 200., 2000., 20000., 200000., 2000000.); X} *-*-END-of-bugtest/printf.c-*-* echo x - bugtest/scanf.c sed 's/^X//' >bugtest/scanf.c <<'*-*-END-of-bugtest/scanf.c-*-*' X#include <stdio.h> X Xmain() X{ X float x,y; X X sscanf("0 12", "%f %f\n", &x, &y); X printf("%f, %f should be %f, %f\n", x, y, 0., 12.); X X sscanf("00 12", "%f %f\n", &x, &y); X printf("%f, %f should be %f, %f\n", x, y, 0., 12.); X} *-*-END-of-bugtest/scanf.c-*-* echo x - bugtest/mscbug.c sed 's/^X//' >bugtest/mscbug.c <<'*-*-END-of-bugtest/mscbug.c-*-*' X#include <stdio.h> X Xmain() X{ Xdouble x; X X printf("look at the fourth, fifth and sixth columns\n"); X printf("%%e\t\t %%f\t\t %%g\t %%.g\t %%.1g\t %%.2g\t %%.3g\n\n"); X for ( x = 1e-6; x < 1e+4; x *= 10.0 ) X printf("%e\t %f\t %g\t %.g\t %.1g\t %.2g\t %.3g\n", X x,x,x,x,x,x,x); X} *-*-END-of-bugtest/mscbug.c-*-* echo x - term/README sed 's/^X//' >term/README <<'*-*-END-of-term/README-*-*' XDOCUMENTATION FOR GNUPLOT TERMINAL DRIVER WRITERS XBy Russell Lang 1/90 X XInformation on each terminal device driver is contained in term.c and Xthe term/*.trm files. Each driver is contained in a .trm file and is X#include'd into term.c. Each driver has a set of initialisers in Xterm.c for term_tbl[], an array of struct termentry. X XHere is the definition of the struct termentry from plot.h: X Xstruct termentry { X char *name; X char *description; X unsigned int xmax,ymax,v_char,h_char,v_tic,h_tic; X FUNC_PTR init,reset,text,scale,graphics,move,vector,linetype, X put_text,text_angle,justify_text,point,arrow; X}; X XHere's a brief description of each variable: X XThe char *name is a pointer to a string containing the name Xof the terminal. This name is used by the 'set terminal' and X'show terminal' commands. XThe name must be unique and must not be confused with an abbreviation Xof another name. For example if the name "postscript" exists, it is not Xpossible to have another name "postscript2". XKeep the name under 15 characters. X XThe char *description is a pointer to a string containing a Xdescription of the terminal, which is displayed in response Xto the 'set terminal' command. XKeep the description under 60 characters. X Xxmax is the maximum number of points in the x direction. XThe range of points used by gnuplot is 0 to xmax-1. X Xymax is the maximum number of points in the y direction. XThe range of points used by gnuplot is 0 to ymax-1. X Xv_char is the height of characters, in the same units as xmax and ymax. XThe border for labelling at the top and bottom of the plot is Xcalculated using v_char. Xv_char is used as the vertical line spacing for characters. X Xh_char is the width of characters, in the same units as xmax and ymax. XThe border for labelling at the left and right of the plot is Xcalculated using h_char. XIf the _justify_text function returns FALSE, h_char is used to justify Xtext right or centre. If characters are not fixed width, then the X_justify_text function must correctly justify the text. X Xv_tic is the vertical size of tics along the x axis, Xin the same units as ymax. X Xh_tic is the horizontal size of tics along the y axis, Xin the same units as xmax. X X XHere's a brief description of what each term.c function does: X X_init() Called once, when the device is first selected. This procedure Xshould set up things that only need to be set once, like handshaking and Xcharacter sets etc... X X_reset() Called when gnuplot is exited, the output device changed or Xthe terminal type changed. This procedure should reset the device, Xpossibly flushing a buffer somewhere or generating a form feed. X X_scale(xs,ys) Called just before _graphics(). This takes the x and y Xscaling factors as information. If the terminal would like to do its Xown scaling, it returns TRUE. Otherwise, it can ignore the information Xand return FALSE: do_plot will do the scaling for you. null_scale is Xprovided to do just this, so most drivers can ignore this function Xentirely. The Latex driver is currently the only one providing its own Xscaling. X X_graphics() Called just before a plot is going to be displayed. This Xprocedure should set the device into graphics mode. Devices which can't Xbe used as terminals (like plotters) will probably be in graphics mode Xalways and therefore won't need this. X X_text() Called immediately after a plot is displayed. This procedure Xshould set the device back into text mode if it is also a terminal, so Xthat commands can be seen as they're typed. Again, this will probably Xdo nothing if the device can't be used as a terminal. X X_move(x,y) Called at the start of a line. The cursor should move to the X(x,y) position without drawing. X X_vector(x,y) Called when a line is to be drawn. This should display a line Xfrom the last (x,y) position given by _move() or _vector() to this new (x,y) Xposition. X X_linetype(lt) Called to set the line type before text is displayed or Xline(s) plotted. This procedure should select a pen color or line Xstyle if the device has these capabilities. Xlt is an integer from -2 to 0 or greater. XAn lt of -2 is used for the border of the plot. XAn lt of -1 is used for the X and Y axes. Xlt 0 and upwards are used for plots 0 and upwards. XIf _linetype() is called with lt greater than the available line types, Xit should map it to one of the available line types. XMost drivers provide 9 different linetypes (lt is 0 to 8). X X_put_text(x,y,str) Called to display text at the (x,y) position, Xwhile in graphics mode. The text should be vertically (with respect Xto the text) justified about (x,y). The text is rotated according Xto _text_angle and then horizontally (with respect to the text) Xjustified according to _justify_text. X X_text_angle(ang) Called to rotate the text angle when placing the y label. XIf ang = 0 then text is horizontal. If ang = 1 then text is vertically Xupwards. Returns TRUE if text can be rotated, FALSE otherwise. X X_justify_text(mode) Called to justify text left, right or centre. XIf mode = LEFT then text placed by _put_text is flushed left against (x,y). XIf mode = CENTRE then centre of text is at (x,y). XIf mode = RIGHT then text is placed flushed right against (x,y). XReturns TRUE if text can be justified XReturns FALSE otherwise and then _put_text assumes text is flushed left; Xjustification of text is then performed by calculating the text width Xusing strlen(text) * h_char. X X_point(x,y,point) Called to place a point at position (x,y). Xpoint is -1 or an integer from 0 upwards. X6 point types (numbered 0 to 5) are normally provided. XPoint type -1 is a dot. XIf point is more than the available point types then it should Xbe mapped back to one of the available points. XTwo _point() functions called do_point() and line_and_point() are Xprovided in term.c and should be suitable for most drivers. Xdo_point() draws the points in the current line type. XIf your driver uses dotted line types (generally because it is Xmonochrome), you should use line_and_point() which changes to Xline type 0 before drawing the point. line type 0 should be solid. X X X_arrow(sx,sy,ex,ey) Called to draw an arrrow from (sx,sy) to (ex,ey). XAn _arrow() function called do_arrow() is provided in term.c which will Xdraw arrows using the _move() and _vector() functions. XDrivers should use do_arrow unless it causes problems. X X XThe following should illustrate the order in which calls to these Xroutines are made: X X _init() X _scale(xs,ys) X _graphics() X _linetype(lt) X _move(x,y) X _vector(x,y) X _point(x,y,point) X _text_angle(angle) X _justify(mode) X _put_text(x,y,text) X _arrow(sx,sy,ex,ey) X _text() X _graphics() X . X . X _text() X _reset() X X *-*-END-of-term/README-*-* echo x - linkopt.vms sed 's/^X//' >linkopt.vms <<'*-*-END-of-linkopt.vms-*-*' Xsys$library:vaxcrtl/share *-*-END-of-linkopt.vms-*-* echo x - buildvms.com sed 's/^X//' >buildvms.com <<'*-*-END-of-buildvms.com-*-*' X$ ! buildvms.com (Command file to compile/link gnuplot and doc2hlp) X$ CFLAGS = "/NOOP" X$ TERMFLAGS = "/define=(AED,BITGRAPH,DXY800A,HP2648,HP26,HP75,HPGL,KERMIT,LATEX,POSTSCRIPT,QMS,REGIS,SELANAR,TEK,V384)" X$ set verify X$ cc 'CFLAGS' command.c X$ cc 'CFLAGS' eval.c X$ cc 'CFLAGS' graphics.c X$ cc 'CFLAGS' internal.c X$ cc 'CFLAGS' misc.c X$ cc 'CFLAGS' parse.c X$ cc 'CFLAGS' plot.c X$ cc 'CFLAGS' scanner.c X$ cc 'CFLAGS' setshow.c X$ cc 'CFLAGS' standard.c X$ cc 'CFLAGS' 'TERMFLAGS' term.c X$ cc 'CFLAGS' util.c X$ cc 'CFLAGS' version.c X$ link /exe=gnuplot - X command.obj,eval.obj,graphics.obj,internal.obj, - X misc.obj,parse.obj,plot.obj,scanner.obj,setshow.obj, - X standard.obj,term.obj,util.obj,version.obj ,linkopt.vms/opt X$ cc [.docs]doc2hlp.c X$ link doc2hlp,linkopt.vms/opt X$ @[.docs]doc2hlp.com X$ library/create/help gnuplot.hlb gnuplot.hlp X$ set noverify X *-*-END-of-buildvms.com-*-* exit