/* Hello, Emacs: this is -*-C-*- ! * $Id: post.trm,v 1.203.2.17 2009/03/02 17:40:06 mikulik Exp $ */ /* GNUPLOT - post.trm */ /*[ * Copyright 1990 - 1993, 1998, 1999, 2000, 2001, 2004 * * Permission to use, copy, and distribute this software and its * documentation for any purpose with or 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. * * Permission to modify the software is granted, but not the right to * distribute the complete modified source code. Modifications are to * be distributed as patches to the released version. Permission to * distribute binaries produced by compiling modified sources is granted, * provided you * 1. distribute the corresponding source modifications from the * released version in the form of a patch file along with the binaries, * 2. add special version identification to distinguish your version * in addition to the base release version number, * 3. provide your name and address as the primary contact for the * support of your modified version, and * 4. retain our contact information in regard to use of the base * software. * Permission to distribute the released version of the source code along * with corresponding source modifications in the form of a patch file is * granted with same provisions 2 through 4 for binary distributions. * * This software is provided "as is" without express or implied warranty * to the extent permitted by applicable law. ]*/ /* * This terminal driver supports: * postscript * * AUTHORS * Russell Lang * * modified 10/5/95 by drd - put in support for other postscript drivers * (enhpost, pslatex, ...) so they dont have to work quite so hard * * send your comments or suggestions to (gnuplot-info@lists.sourceforge.net). * * The 'postscript' driver produces landscape output 10" wide and 7" high. * To change font to Times-Roman and font size to 20pts use * 'set term postscript "Times-Roman" 20'. * To get a smaller (5" x 3.5") eps output use 'set term post eps' * and make only one plot per file. Font size for eps will be half * the specified size. * * Erik Luijten 30/5/97: added %%CreationDate, made %%DocumentFonts conform * to DSC, added version no. and patchl. to %%Creator * Petr Mikulik, Jan 1999: terminal entries for PM3D functionality * * Dick Crawford 24/5/00: added 'a{}{}' syntax to allow for overprinting * * Dan Sebald, 7 March 2003: terminal entry for image functionality * * Harald Harders (h.harders@tu-bs.de), 2004-12-02: * Moved all terminal settings into a single structure. * * Harald Harders (h.harders@tu-bs.de), 2005-02-08: * Merged functionality of postscript, pslatex, pstex, and epslatex terminals. * * Ethan Merritt Mar 2006: Break out prolog and character encodings into * separate files loaded at runtime */ #include "driver.h" #ifdef TERM_PROTO #include "variable.h" /* For loadpath_handler used in PS_dump_prologue_file */ #endif #ifdef TERM_REGISTER register_term(post) #endif #ifdef TERM_PROTO TERM_PUBLIC void PS_options __PROTO((void)); TERM_PUBLIC void PS_common_init __PROTO((TBOOLEAN uses_fonts, unsigned int xoff, unsigned int yoff, unsigned int bb_xmin, unsigned int bb_ymin, unsigned int bb_xmax, unsigned int bb_ymax, const char **dict)); TERM_PUBLIC void PS_init __PROTO((void)); TERM_PUBLIC void PS_graphics __PROTO((void)); TERM_PUBLIC void PS_text __PROTO((void)); TERM_PUBLIC void PS_reset __PROTO((void)); TERM_PUBLIC void PS_linetype __PROTO((int linetype)); TERM_PUBLIC void PS_move __PROTO((unsigned int x, unsigned int y)); TERM_PUBLIC void PS_vector __PROTO((unsigned int x, unsigned int y)); TERM_PUBLIC void PS_put_text __PROTO((unsigned int x, unsigned int y, const char *str)); TERM_PUBLIC int PS_text_angle __PROTO((int ang)); TERM_PUBLIC int PS_justify_text __PROTO((enum JUSTIFY mode)); TERM_PUBLIC void PS_point __PROTO((unsigned int x, unsigned int y, int number)); TERM_PUBLIC void PS_arrow __PROTO(( unsigned int sx, unsigned int sy, unsigned int ex, unsigned int ey, int head)); TERM_PUBLIC int PS_set_font __PROTO((const char * font)); TERM_PUBLIC void PS_fillbox __PROTO((int style, unsigned int x1, unsigned int y1, unsigned int width, unsigned int height)); TERM_PUBLIC void PS_linewidth __PROTO((double linewidth)); /* JFi [linewidth] */ TERM_PUBLIC void PS_pointsize __PROTO((double ptsize)); /* JFi [pointsize] */ TERM_PUBLIC int PS_make_palette (t_sm_palette *); TERM_PUBLIC void PS_previous_palette (void); TERM_PUBLIC void PS_set_color (t_colorspec *); TERM_PUBLIC void PS_filled_polygon (int, gpiPoint *); #ifdef WITH_IMAGE TERM_PUBLIC void PS_image __PROTO((unsigned, unsigned, coordval *, gpiPoint *, t_imagecolor)); #endif /* To support "set term post enhanced" */ TERM_PUBLIC void ENHPS_put_text __PROTO((unsigned int x, unsigned int y, const char *str)); TERM_PUBLIC int ENHPS_set_font __PROTO((const char * font)); TERM_PUBLIC void ENHPS_OPEN __PROTO((char * fontname, double fontsize, double base, TBOOLEAN widthflag, TBOOLEAN showflag, int overprint)); TERM_PUBLIC void ENHPS_FLUSH __PROTO((void)); TERM_PUBLIC void ENHPS_WRITEC __PROTO((int c)); TERM_PUBLIC char *PS_RememberFont __PROTO((char *fname, int reencode)); TERM_PUBLIC char *PS_escape_string __PROTO((char *origstr, char *escapelist)); TERM_PUBLIC void PS_path __PROTO((int p)); static TBOOLEAN PS_newpath = FALSE; #endif /* TERM_PROTO */ #ifndef TERM_PROTO_ONLY #ifdef TERM_BODY #include "post.h" #define PS_FLUSH_PATH do { \ if (ps_path_count) { \ fputs("stroke\n", gppsfile); \ ps_path_count = 0; \ PS_relative_ok = FALSE; \ } \ } while (0) /* Datastructure implementing inclusion of font files */ struct ps_fontfile_def { struct ps_fontfile_def *next;/* pointer to next fontfile in linked list */ char *fontfile_name; char *fontfile_fullname; }; /* Terminal type of postscript dialect */ enum PS_TERMINALTYPE { PSTERM_PSTEX, PSTERM_PSLATEX, PSTERM_EPSLATEX, PSTERM_POSTSCRIPT }; enum PS_PSFORMAT { PSTERM_EPS, PSTERM_PORTRAIT, PSTERM_LANDSCAPE }; /* One struct that takes all terminal parameters * by Harald Harders */ typedef struct ps_params_t { enum PS_TERMINALTYPE terminal; int xoff; int yoff; enum PS_PSFORMAT psformat; TBOOLEAN level1; TBOOLEAN color; TBOOLEAN blacktext; TBOOLEAN solid; float dash_length; float linewidth_factor; TBOOLEAN duplex_option; /* one of duplex or simplex specified? */ TBOOLEAN duplex_state; TBOOLEAN rounded; /* rounded linecaps and linejoins */ struct ps_fontfile_def *first_fontfile; char font[MAX_ID_LEN+1]; /* name of font */ float fontsize; /* size of font in pts */ TBOOLEAN useauxfile; /* only necessary for ps(la)tex */ TBOOLEAN rotate; /* only necessary for ps(la)tex */ int palfunc_samples; /* setable via "palf$uncparam" */ double palfunc_deviation; /* terminal option */ TBOOLEAN oldstyle; TBOOLEAN epslatex_standalone; } ps_params_t; #define POST_PARAMS_DEFAULT { \ PSTERM_POSTSCRIPT, 50, 50, \ PSTERM_LANDSCAPE, FALSE, FALSE, FALSE, FALSE, 1.0, 1.0, FALSE, \ FALSE, FALSE, NULL, "Helvetica", 14, FALSE, FALSE, 2000, 0.003, \ FALSE, FALSE \ } static ps_params_t post_params = POST_PARAMS_DEFAULT; static const ps_params_t post_params_default = POST_PARAMS_DEFAULT; #define EPSLATEX_PARAMS_DEFAULT { \ PSTERM_EPSLATEX, 50, 50, \ PSTERM_EPS, FALSE, FALSE, TRUE, FALSE, 1.0, 1.0, FALSE, \ FALSE, FALSE, NULL, "", 11, TRUE, FALSE, 2000, 0.003, \ FALSE, FALSE \ } static ps_params_t epslatex_params = EPSLATEX_PARAMS_DEFAULT; static const ps_params_t epslatex_params_default = EPSLATEX_PARAMS_DEFAULT; #define PSLATEX_PARAMS_DEFAULT { \ PSTERM_PSLATEX, 0, 0, \ PSTERM_EPS, FALSE, FALSE, TRUE, FALSE, 1.0, 1.0, FALSE, \ FALSE, FALSE, NULL, "", 0, FALSE, TRUE, 2000, 0.003, \ FALSE, FALSE \ } static ps_params_t pslatex_params = PSLATEX_PARAMS_DEFAULT; static const ps_params_t pslatex_params_default = PSLATEX_PARAMS_DEFAULT; #define PSTEX_PARAMS_DEFAULT { \ PSTERM_PSTEX, 0, 0, \ PSTERM_EPS, FALSE, FALSE, TRUE, FALSE, 1.0, 1.0, FALSE, \ FALSE, FALSE, NULL, "", 0, FALSE, TRUE, 2000, 0.003, \ FALSE, FALSE \ } static ps_params_t pstex_params = PSTEX_PARAMS_DEFAULT; static const ps_params_t pstex_params_default = PSTEX_PARAMS_DEFAULT; static ps_params_t *ps_params = &post_params; static void make_interpolation_code __PROTO((void)); static void make_color_model_code __PROTO((void)); static char * save_space __PROTO((double gray)); static void write_component_array __PROTO((const char *text, gradient_struct *grad, int cnt, int offset)); static void write_gradient_definition __PROTO((gradient_struct *gradient, int cnt)); static void write_color_space __PROTO((t_sm_palette *palette)); static void make_palette_formulae __PROTO((void)); static void PS_make_header __PROTO((t_sm_palette *palette)); static float ps_fontsize; /* for enhanced mode, we keep a separate font name and size, which * is restored to the default value on font of "" */ static char ps_enh_font[MAX_ID_LEN+1]; static float ps_enh_fontsize; static int ENHPS_initialized; static int ps_page = 0; /* page count */ static int ps_path_count = 0; /* count of lines in path */ static int ps_ang = 0; /* text angle */ static enum JUSTIFY ps_justify = LEFT; /* text is flush left */ static void delete_ps_fontfile __PROTO((struct ps_fontfile_def *, struct ps_fontfile_def *)); TERM_PUBLIC void PS_load_fontfile __PROTO((struct ps_fontfile_def *,TBOOLEAN)); TERM_PUBLIC void PS_load_fontfiles __PROTO((TBOOLEAN)); static TBOOLEAN ps_explicit_size = FALSE; static size_units ps_explicit_units = INCHES; static int eps_explicit_x = 0; static int eps_explicit_y = 0; #define DOTS_PER_INCH (300) /* resolution of printer we expect to use */ /* name of auxiliary file */ static char *pslatex_auxname = NULL; /* Routine to copy pre-existing prolog files into output stream */ static void PS_dump_prologue_file __PROTO((char *)); static const char GPFAR * GPFAR OldEPSL_linetypes[] = { /* Line Types */ "% Redefine line types to match old epslatex driver\n", "/LTw { PL [] 1 setgray } def\n", /* background (assumed white) */ "/LTb { BL [] 0 0 0 DL } def\n", /* border */ "/LTa { AL [1 udl mul 2 udl mul] 0 setdash 0 0 0 setrgbcolor } def\n", /* axes */ "/LT0 { PL [] 1 0 0 DL } def\n", "/LT1 { PL [8 dl1 5 dl1] 0 0 1 DL } def\n", "/LT2 { PL [4 dl1 4 dl1] 0 1 1 DL } def\n", "/LT3 { PL [8 dl1 5 dl1 0.5 dl1 5 dl1] 1 0 1 DL } def\n", NULL }; static const char GPFAR * GPFAR ENHPS_header[] = { /* For MFshow and MFwidth the tos is an array with the string and font info: */ /* [ ] */ /* EAM Mar 2004 - Add in a special case overprint 3 = save, overprint 4 = restore */ "/MFshow {\n", " { dup 5 get 3 ge\n", /* EAM test for overprint 3 or 4 */ " { 5 get 3 eq {gsave} {grestore} ifelse }\n", /* EAM */ " {dup dup 0 get findfont exch 1 get scalefont setfont\n", " [ currentpoint ] exch dup 2 get 0 exch R dup 5 get 2 ne {dup dup 6\n", " get exch 4 get {show} {stringwidth pop 0 R} ifelse }if dup 5 get 0 eq\n", " {dup 3 get {2 get neg 0 exch R pop} {pop aload pop M} ifelse} {dup 5\n", " get 1 eq {dup 2 get exch dup 3 get exch 6 get stringwidth pop -2 div\n", " dup 0 R} {dup 6 get stringwidth pop -2 div 0 R 6 get\n", " show 2 index {aload pop M neg 3 -1 roll neg R pop pop} {pop pop pop\n", " pop aload pop M} ifelse }ifelse }ifelse }\n", " ifelse }\n", /* EAM */ " forall} bind def\n", /* get the width of the text */ /* HH 2005-07-24 - Add in a special case overprint 3 = save, 4 = restore * also for estimation of string width. This is done by interposing an * additional value on the stack. between XYsave and XYrestore, * this number is increased by the strings. By pop'ing this number, all * strings between XYsave and XYrestore are ignored. */ "/MFwidth {0 exch { dup 5 get 3 ge { 5 get 3 eq { 0 } { pop } ifelse }\n", " {dup 3 get{dup dup 0 get findfont exch 1 get scalefont setfont\n", " 6 get stringwidth pop add} {pop} ifelse} ifelse} forall} bind def\n", /* flush left show */ "/MLshow { currentpoint stroke M\n", " 0 exch R\n Blacktext {gsave 0 setgray MFshow grestore} {MFshow} ifelse } bind def\n", /* flush right show */ "/MRshow { currentpoint stroke M\n", " exch dup MFwidth neg 3 -1 roll R\n Blacktext {gsave 0 setgray MFshow grestore} {MFshow} ifelse } bind def\n", /* centred show */ "/MCshow { currentpoint stroke M\n", " exch dup MFwidth -2 div 3 -1 roll R\n Blacktext {gsave 0 setgray MFshow grestore} {MFshow} ifelse } bind def\n", /* Save and restore for @-text (phantom box) */ "/XYsave { [( ) 1 2 true false 3 ()] } bind def\n", "/XYrestore { [( ) 1 2 true false 4 ()] } bind def\n", NULL }; /* external/internal prologue files machinery */ #if defined(GNUPLOT_PS_DIR) # if defined(_Windows) # include "win/winmain.h" # elif defined(OS2) # define INCL_DOSPROCESS # define INCL_DOSMODULEMGR # include # endif /* _Windows || OS2 */ #else /* GNUPLOT_PS_DIR */ # include "PostScript/prologues.h" #endif /* GNUPLOT_PS_DIR */ /* added to enhpost by Matt Heffron */ /* moved to post.trm by drd */ static struct PS_FontName { char *name; struct PS_FontName *next; } *PS_DocFonts = NULL; static char PS_default_font[MAX_ID_LEN+1] = {'H','e','l','v','e','t','i','c','a',',','1','4','\0'}; /* given a font, look in store to see if it is there already * if so, return NULL. If not, reencode it if allowed to, otherwise * return an appropriate re-encode string */ TERM_PUBLIC char * PS_RememberFont(char *fname, int can_reencode) { struct PS_FontName *fnp; char *recode = NULL; char *myfname = "Symbol"; if (strcmp(fname, "Symbol-Oblique") != 0) myfname = fname; for (fnp = PS_DocFonts; fnp ; fnp = fnp->next) if (strcmp(fnp->name, myfname) == 0) return NULL; /* we did not find the name */ fnp = (struct PS_FontName *)gp_alloc(sizeof(struct PS_FontName), "PostScript Font record"); fnp->name = gp_strdup(myfname); fnp->next = PS_DocFonts; PS_DocFonts = fnp; switch(encoding) { case S_ENC_ISO8859_1: recode = "reencodeISO def\n"; break; case S_ENC_ISO8859_2: recode = "reencodeISO2 def\n"; break; case S_ENC_ISO8859_15: recode = "reencodeISO15 def\n"; break; case S_ENC_CP437: recode = "reencodeCP437 def\n"; break; case S_ENC_CP850 : recode = "reencodeCP850 def\n"; break; case S_ENC_CP852 : recode = "reencodeCP852 def\n"; break; case S_ENC_KOI8_R : recode = "reencodeKOI8R def\n"; break; case S_ENC_CP1250 : recode = "reencodeCP1250 def\n"; break; case S_ENC_KOI8_U : recode = "reencodeKOI8U def\n"; break; default: /* do nothing */ break; } if (can_reencode && recode) { fprintf(gppsfile,"/%s %s", myfname, recode); return NULL; } else return recode; } char * PS_escape_string(char *origstr, char *escapelist) { char *newstr; char *n; if (!origstr || !*origstr) return NULL; newstr = gp_alloc(2*strlen(origstr)+1,"PS_escape_string"); for (n=newstr; *origstr; *n++ = *origstr++) { if (strchr(escapelist,*origstr)) *n++ = '\\'; } *n = '\0'; return newstr; } static int PS_pen_x, PS_pen_y; static int PS_taken; static int PS_linetype_last; static double PS_linewidth_last; /* HBB NEW 20031219 */ static TBOOLEAN PS_relative_ok; /* HBB 990914: PS_SOLID is already used by the WIN32 API headers. * Renamed to PS_SOLIDE, therefore... */ enum PS_id { PS_PORTRAIT, PS_LANDSCAPE, PS_EPSF, PS_DEFAULT, PS_ENHANCED, PS_NOENHANCED, PS_LATEX, EPSLATEX_STANDALONE, EPSLATEX_INPUT, PS_MONOCHROME, PS_COLOR, PS_BLACKTEXT, PS_COLORTEXT, PS_SOLIDE, PS_DASHED, PS_DASHLENGTH, PS_LINEWIDTH, PS_SIMPLEX, PS_DUPLEX, PS_DEFAULTPLEX, PS_ROUNDED, PS_NOROUNDED, PS_FONTFILE, PS_NOFONTFILES, PS_PALFUNCPARAM, PS_LEVEL1, PS_LEVELDEFAULT, PS_FONT, PSLATEX_ROTATE, PSLATEX_NOROTATE, PSLATEX_AUXFILE, PSLATEX_NOAUXFILE, PSLATEX_OLDSTYLE, PSLATEX_NEWSTYLE, EPSLATEX_HEADER, EPSLATEX_NOHEADER, PS_SIZE, PS_OTHER }; static struct gen_table PS_opts[] = { { "d$efault", PS_DEFAULT }, { "p$ortrait", PS_PORTRAIT }, { "l$andscape", PS_LANDSCAPE }, { "ep$sf", PS_EPSF }, { "enh$anced", PS_ENHANCED }, { "noenh$anced", PS_NOENHANCED }, { "m$onochrome", PS_MONOCHROME }, { "c$olor", PS_COLOR }, { "c$olour", PS_COLOR }, { "b$lacktext", PS_BLACKTEXT }, { "colort$ext", PS_COLORTEXT }, { "colourt$ext", PS_COLORTEXT }, { "so$lid", PS_SOLIDE }, { "da$shed", PS_DASHED }, { "dashl$ength", PS_DASHLENGTH }, { "dl", PS_DASHLENGTH }, { "linew$idth", PS_LINEWIDTH }, { "lw", PS_LINEWIDTH }, { "size", PS_SIZE }, { "si$mplex", PS_SIMPLEX }, { "du$plex", PS_DUPLEX }, { "defaultp$lex", PS_DEFAULTPLEX }, { "butt", PS_NOROUNDED }, { "rou$nded", PS_ROUNDED }, { "fontf$ile", PS_FONTFILE }, { "nofontf$iles", PS_NOFONTFILES }, { "palf$uncparam", PS_PALFUNCPARAM }, { "level1", PS_LEVEL1 }, { "leveldefault", PS_LEVELDEFAULT }, { "font", PS_FONT }, { "stand$alone", EPSLATEX_STANDALONE }, { "inp$ut", EPSLATEX_INPUT }, { "header", EPSLATEX_HEADER }, { "noheader", EPSLATEX_NOHEADER }, { "r$otate", PSLATEX_ROTATE }, { "n$orotate", PSLATEX_NOROTATE }, { "a$uxfile", PSLATEX_AUXFILE }, { "noa$uxfile", PSLATEX_NOAUXFILE }, { "old$style", PSLATEX_OLDSTYLE }, { "new$style", PSLATEX_NEWSTYLE }, { NULL, PS_OTHER } }; TERM_PUBLIC void PS_options() { struct value a; char *s; char *ps_fontfile_char = NULL; char tmp_term_options[MAX_LINE_LEN+1] = ""; TBOOLEAN set_orientation = FALSE, set_enhanced = FALSE, set_plex = FALSE; TBOOLEAN set_level = FALSE, set_color = FALSE, set_dashed = FALSE; TBOOLEAN set_dashlen = FALSE, set_linewidth = FALSE, set_round = FALSE; TBOOLEAN set_palfunc = FALSE, set_colortext = FALSE; TBOOLEAN set_standalone = FALSE, set_epslheader = FALSE; TBOOLEAN set_pslrotate = FALSE, set_pslauxfile = FALSE; TBOOLEAN set_psloldstyle = FALSE, set_font = FALSE, set_fontsize = FALSE; /* Annoying hack to handle the case of 'set termoption' after */ /* we have already initialized the terminal. */ if (c_token != 2) ps_explicit_size = FALSE; if (strcmp(term->name, "pstex") == 0) ps_params = &pstex_params; else if (strcmp(term->name, "pslatex") == 0) ps_params = &pslatex_params; else if (strcmp(term->name, "epslatex") == 0) { ps_params = &epslatex_params; } else ps_params = &post_params; if (ps_params->terminal == PSTERM_POSTSCRIPT) { if (pslatex_auxname) free(pslatex_auxname); pslatex_auxname = NULL; } else { term->set_font = PS_set_font; } if (!END_OF_COMMAND) { if (lookup_table(&PS_opts[0],c_token) == PS_DEFAULT) { switch (ps_params->terminal) { case PSTERM_POSTSCRIPT: while (ps_params->first_fontfile != NULL) delete_ps_fontfile((struct ps_fontfile_def *) NULL, ps_params->first_fontfile); *ps_params = post_params_default; break; case PSTERM_EPSLATEX: *ps_params = epslatex_params_default; break; case PSTERM_PSLATEX: *ps_params = pslatex_params_default; break; case PSTERM_PSTEX: *ps_params = pstex_params_default; break; } term->flags &= ~TERM_ENHANCED_TEXT; c_token++; if (!END_OF_COMMAND) int_error(c_token, "extraneous argument in set terminal %s",term->name); } } while (!END_OF_COMMAND) { switch(lookup_table(&PS_opts[0],c_token)) { case PS_PORTRAIT: if (set_orientation || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_orientation = TRUE; ps_params->psformat = PSTERM_PORTRAIT; c_token++; break; case PS_LANDSCAPE: if (set_orientation || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_orientation = TRUE; ps_params->psformat = PSTERM_LANDSCAPE; c_token++; break; case PS_EPSF: if (set_orientation || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_orientation = TRUE; ps_params->psformat = PSTERM_EPS; c_token++; break; case PS_LEVEL1: if (set_level) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_level = TRUE; ps_params->level1 = TRUE; c_token++; break; case PS_LEVELDEFAULT: if (set_level) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_level = TRUE; ps_params->level1 = FALSE; c_token++; break; case PS_DEFAULT: int_error(c_token, "extraneous argument in set terminal %s",term->name); c_token++; break; case PS_ENHANCED: if (set_enhanced || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_enhanced = TRUE; term->put_text = ENHPS_put_text; term->set_font = ENHPS_set_font; term->flags |= TERM_ENHANCED_TEXT; ++c_token; break; case PS_NOENHANCED: if (set_enhanced || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_enhanced = TRUE; term->put_text = PS_put_text; term->set_font = PS_set_font; term->flags &= ~TERM_ENHANCED_TEXT; ++c_token; break; #ifdef PSLATEX_DRIVER case EPSLATEX_STANDALONE: if (set_standalone || ps_params->terminal != PSTERM_EPSLATEX) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_standalone = TRUE; ps_params->epslatex_standalone = TRUE; ++c_token; break; case EPSLATEX_INPUT: if (set_standalone || ps_params->terminal != PSTERM_EPSLATEX) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_standalone = TRUE; ps_params->epslatex_standalone = FALSE; ++c_token; break; case EPSLATEX_HEADER: if (set_epslheader || ps_params->terminal != PSTERM_EPSLATEX) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_epslheader = TRUE; ++c_token; free(epslatex_header); /* Protect against int_error() bail from try_to_get_string() */ epslatex_header = NULL; epslatex_header = try_to_get_string(); if (!epslatex_header) int_error(c_token,"String containing header information expected"); break; case EPSLATEX_NOHEADER: if (set_epslheader || ps_params->terminal != PSTERM_EPSLATEX) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_epslheader = TRUE; free(epslatex_header); epslatex_header = NULL; ++c_token; break; case PSLATEX_ROTATE: if (set_pslrotate || ((ps_params->terminal != PSTERM_PSLATEX) && (ps_params->terminal != PSTERM_PSTEX))) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_pslrotate = TRUE; ps_params->rotate = TRUE; ++c_token; break; case PSLATEX_NOROTATE: if (set_pslrotate || ((ps_params->terminal != PSTERM_PSLATEX) && (ps_params->terminal != PSTERM_PSTEX))) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_pslrotate = TRUE; ps_params->rotate = FALSE; ++c_token; break; case PSLATEX_AUXFILE: if (set_pslauxfile || ((ps_params->terminal == PSTERM_POSTSCRIPT) || (ps_params->terminal == PSTERM_EPSLATEX))) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_pslauxfile = TRUE; ps_params->useauxfile = TRUE; c_token++; break; case PSLATEX_NOAUXFILE: if (set_pslauxfile || ((ps_params->terminal == PSTERM_POSTSCRIPT) || (ps_params->terminal == PSTERM_EPSLATEX))) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_pslauxfile = TRUE; ps_params->useauxfile = FALSE; c_token++; break; case PSLATEX_OLDSTYLE: if (set_psloldstyle || ps_params->terminal == PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_psloldstyle = TRUE; ps_params->oldstyle = TRUE; if (ps_params->terminal == PSTERM_EPSLATEX) ps_params->rounded = TRUE; c_token++; break; case PSLATEX_NEWSTYLE: if (set_psloldstyle || ps_params->terminal == PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_psloldstyle = TRUE; ps_params->oldstyle = FALSE; c_token++; break; #endif case PS_MONOCHROME: if (set_color) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_color = TRUE; ps_params->color = FALSE; c_token++; break; case PS_COLOR: if (set_color) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_color = TRUE; ps_params->color = TRUE; c_token++; break; case PS_BLACKTEXT: if (set_colortext || ((ps_params->terminal != PSTERM_POSTSCRIPT) && (ps_params->terminal != PSTERM_EPSLATEX))) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_colortext = TRUE; ps_params->blacktext = TRUE; c_token++; break; case PS_COLORTEXT: if (set_colortext || ((ps_params->terminal != PSTERM_POSTSCRIPT) && (ps_params->terminal != PSTERM_EPSLATEX))) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_colortext = TRUE; ps_params->blacktext = FALSE; c_token++; break; case PS_SOLIDE: if (set_dashed) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_dashed = TRUE; ps_params->solid = TRUE; c_token++; break; case PS_DASHED: if (set_dashed) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_dashed = TRUE; ps_params->solid = FALSE; c_token++; break; case PS_DASHLENGTH: if (set_dashlen) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_dashlen = TRUE; c_token++; ps_params->dash_length = real(const_express(&a)); if (ps_params->dash_length <= 0.0) ps_params->dash_length = 1.0; break; case PS_LINEWIDTH: if (set_linewidth) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_linewidth = TRUE; c_token++; ps_params->linewidth_factor = real(const_express(&a)); if (ps_params->linewidth_factor <= 0.0) ps_params->linewidth_factor = 1.0; break; case PS_SIMPLEX: if (set_plex || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_plex = TRUE; ps_params->duplex_state = FALSE; ps_params->duplex_option = TRUE; c_token++; break; case PS_DUPLEX: if (set_plex || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_plex = TRUE; ps_params->duplex_state = TRUE; ps_params->duplex_option = TRUE; c_token++; break; case PS_DEFAULTPLEX: if (set_plex || ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_plex = TRUE; ps_params->duplex_option = FALSE; c_token++; break; case PS_ROUNDED: if (set_round) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_round = TRUE; ps_params->rounded = TRUE; c_token++; break; case PS_NOROUNDED: if (set_round) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_round = TRUE; ps_params->rounded = FALSE; c_token++; break; case PS_FONTFILE: { TBOOLEAN deleteentry = FALSE; c_token++; if (ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); if (!isstring(c_token)) { if (equals(c_token, "add")) c_token++; else if (almost_equals(c_token, "del$ete")) { deleteentry = TRUE; c_token++; } else int_error(c_token, "Font filename expected"); } if (isstring(c_token)) { TBOOLEAN filename_doubled = FALSE; struct ps_fontfile_def *curr_ps_fontfile = ps_params->first_fontfile; struct ps_fontfile_def *prev_ps_fontfile = NULL; struct ps_fontfile_def *new_ps_fontfile = gp_alloc(sizeof(struct ps_fontfile_def), "new_ps_fontfile"); new_ps_fontfile->fontfile_name = gp_alloc (token_len(c_token), "new_ps_fontfile->fontfile_name"); quote_str(new_ps_fontfile->fontfile_name, c_token, token_len(c_token)); gp_expand_tilde(&(new_ps_fontfile->fontfile_name)); if (!deleteentry) { #if defined(PIPES) if (*(new_ps_fontfile->fontfile_name) != '<') { #endif new_ps_fontfile->fontfile_fullname = fontpath_fullname(new_ps_fontfile->fontfile_name); if (!new_ps_fontfile->fontfile_fullname) int_error(c_token, "Font file '%s' not found", new_ps_fontfile->fontfile_name); #if defined(PIPES) } else new_ps_fontfile->fontfile_fullname = NULL; #endif } new_ps_fontfile->next = NULL; if (!deleteentry) { LFS *lf=lf_head; if (lf) { while (lf->prev) lf=lf->prev; } if ((lf && lf->interactive) || interactive) /* if (interactive) { */ PS_load_fontfile(new_ps_fontfile,FALSE); } if (ps_params->first_fontfile) { while (curr_ps_fontfile) { if (strcmp(curr_ps_fontfile->fontfile_name, new_ps_fontfile->fontfile_name) == 0) { filename_doubled = TRUE; if (deleteentry) { delete_ps_fontfile(prev_ps_fontfile, curr_ps_fontfile); curr_ps_fontfile = NULL; break; } } prev_ps_fontfile = curr_ps_fontfile; curr_ps_fontfile = curr_ps_fontfile->next; } if (!filename_doubled) { if (!deleteentry) prev_ps_fontfile->next = new_ps_fontfile; else int_warn(c_token,"Can't delete Font filename '%s'", new_ps_fontfile->fontfile_name); } } else { if (!deleteentry) ps_params->first_fontfile = new_ps_fontfile; else int_warn(c_token, "Can't delete Font filename '%s'", new_ps_fontfile->fontfile_name); } c_token++; } else int_error(c_token, "Font filename expected"); break; } case PS_NOFONTFILES: if (ps_params->terminal != PSTERM_POSTSCRIPT) int_error(c_token, "extraneous argument in set terminal %s",term->name); while (ps_params->first_fontfile != NULL) delete_ps_fontfile((struct ps_fontfile_def *) NULL, ps_params->first_fontfile); ++c_token; break; case PS_PALFUNCPARAM: if (set_palfunc) int_error(c_token, "extraneous argument in set terminal %s",term->name); set_palfunc = TRUE; ++c_token; ps_params->palfunc_samples = (int)real(const_express(&a)); if (ps_params->palfunc_samples < 2) ps_params->palfunc_samples = 2; if (!END_OF_COMMAND && equals(c_token, ",")) { ++c_token; ps_params->palfunc_deviation = fabs(real(const_express(&a))); if (ps_params->palfunc_deviation >= 1) int_error(c_token-1,"allowed deviation must be < 1"); } break; case PS_SIZE: { float xmax_t, ymax_t; c_token++; ps_explicit_size = TRUE; ps_explicit_units = parse_term_size(&xmax_t, &ymax_t, INCHES); /* PostScript *always* works in pts, not locally defined dpi */ term->xmax = xmax_t * PS_SC * 72./gp_resolution; term->ymax = ymax_t * PS_SC * 72./gp_resolution; eps_explicit_x = 2 * term->xmax; eps_explicit_y = 2 * term->ymax; break; } case PS_FONT: c_token++; /* Fall through to attempt to read font name */ case PS_OTHER: default: if ((s = try_to_get_string())) { if (set_font) int_error(c_token, "extraneous argument in set terminal %s", term->name); set_font = TRUE; if ((ps_params->terminal == PSTERM_POSTSCRIPT) || (ps_params->terminal == PSTERM_EPSLATEX)) { char *comma = strrchr(s,','); if (comma && (1 == sscanf(comma+1,"%f",&ps_params->fontsize))) { set_fontsize = TRUE; *comma = '\0'; } if (*s) strncpy(ps_params->font, s, sizeof(ps_params->font)); free(s); } else int_error(c_token-1, "terminal %s does not allow specification %s", term->name, "of font name"); } else { if (set_fontsize) int_error(c_token, "extraneous argument in set terminal %s", term->name); set_fontsize = TRUE; /* We have font size specified */ ps_params->fontsize = real(const_express(&a)); } break; } } switch (ps_params->terminal) { case PSTERM_POSTSCRIPT: ps_fontsize = ps_params->fontsize; break; case PSTERM_EPSLATEX: ps_fontsize = 2 * ps_params->fontsize; break; case PSTERM_PSLATEX: case PSTERM_PSTEX: if (ps_params->fontsize > 0) ps_fontsize = 2 * ps_params->fontsize; else ps_fontsize = 20; /* default: 10pt */ break; } term->v_char = (unsigned int)(ps_fontsize*PS_SC); if (ps_params->oldstyle) term->h_char = (unsigned int)(ps_fontsize*PS_SC*5/10); else term->h_char = (unsigned int)(ps_fontsize*PS_SC*6/10); sprintf(PS_default_font,"%s,%g",ps_params->font,ps_fontsize); if (ps_params->terminal == PSTERM_POSTSCRIPT) { if (ps_params->first_fontfile) { struct ps_fontfile_def *curr_ps_fontfile = ps_params->first_fontfile; unsigned int totlength = 0; char *running; while (curr_ps_fontfile) { totlength += strlen(curr_ps_fontfile->fontfile_name) + strlen(" fontfile \"\""); curr_ps_fontfile = curr_ps_fontfile->next; } curr_ps_fontfile = ps_params->first_fontfile; ps_fontfile_char = gp_alloc (totlength+1,"ps_fontfile_char"); running = ps_fontfile_char; while (curr_ps_fontfile) { sprintf(running," fontfile \"%s\"", curr_ps_fontfile->fontfile_name); running += strlen(running); curr_ps_fontfile = curr_ps_fontfile->next; } } } /* HBB 19990823: fixed the options string. It violated the 'save * loadable output' rule */ if (ps_params->terminal == PSTERM_POSTSCRIPT) sprintf(term_options,"%s %s %s \\\n", ps_params->psformat==PSTERM_EPS ? "eps" : (ps_params->psformat==PSTERM_PORTRAIT ? "portrait" : "landscape"), term->put_text == ENHPS_put_text ? "enhanced" : "noenhanced", ps_params->duplex_option ? (ps_params->duplex_state ? "duplex" : "simplex") : "defaultplex"); else if (ps_params->terminal != PSTERM_EPSLATEX) sprintf(term_options, "%s%s", ps_params->rotate ? "rotate" : "norotate", ps_params->useauxfile ? " auxfile" : ""); else term_options[0] = '\0'; sprintf(tmp_term_options," %s %s %s \\\n\ %s dashlength %.1f linewidth %.1f %s \\\n", ps_params->level1 ? "level1" : "leveldefault", ps_params->color ? "color" : "monochrome", ps_params->blacktext ? "blacktext" : "colortext", ps_params->solid ? "solid" : "dashed", ps_params->dash_length, ps_params->linewidth_factor, ps_params->rounded ? "rounded" : "butt"); strcat(term_options,tmp_term_options); sprintf(tmp_term_options," palfuncparam %d,%g \\\n ", ps_params->palfunc_samples, ps_params->palfunc_deviation); strcat(term_options,tmp_term_options); #ifdef PSLATEX_DRIVER if ((ps_params->terminal == PSTERM_PSTEX) || (ps_params->terminal == PSTERM_PSLATEX)) { sprintf(tmp_term_options, "%s %s ", ps_params->rotate ? "rotate" : "norotate", ps_params->useauxfile ? "auxfile" : "noauxfile"); strcat(term_options,tmp_term_options); } if (ps_params->terminal == PSTERM_EPSLATEX) { sprintf(tmp_term_options, "%s ", ps_params->epslatex_standalone ? "standalone" : "input"); if (epslatex_header) sprintf(tmp_term_options, "header \"%s\" ", epslatex_header); else sprintf(tmp_term_options, "noheader "); strcat(term_options,tmp_term_options); } #endif if (ps_explicit_size) { if (ps_explicit_units == CM) sprintf(tmp_term_options,"size %.2fcm, %.2fcm ", 2.54*(float)term->xmax/(72.*PS_SC), 2.54*(float)term->ymax/(72.*PS_SC)); else sprintf(tmp_term_options,"size %.2fin, %.2fin ", (float)term->xmax/(72.*PS_SC), (float)term->ymax/(72.*PS_SC)); strcat(term_options,tmp_term_options); } if (ps_params->terminal == PSTERM_POSTSCRIPT) sprintf(tmp_term_options,"\"%s\" %g%s ", ps_params->font,ps_params->fontsize, ps_fontfile_char ? ps_fontfile_char : ""); else if (ps_params->terminal == PSTERM_EPSLATEX) sprintf(tmp_term_options,"\"%s\" %g ", ps_params->font,ps_params->fontsize); else if (ps_params->fontsize) sprintf(tmp_term_options,"%g ",ps_params->fontsize); else tmp_term_options[0]='\0'; if (ps_fontfile_char) free(ps_fontfile_char); strcat(term_options,tmp_term_options); } /* store settings passed to common_init() for use in PS_graphics() * ps_params->psformat, etc are reserved for storing the term options */ static TBOOLEAN ps_common_uses_fonts; static unsigned int ps_common_xoff, ps_common_yoff; TERM_PUBLIC void PS_load_fontfile(struct ps_fontfile_def *current_ps_fontfile, TBOOLEAN doload) { if (current_ps_fontfile) { unsigned int linesread = 0; FILE *ffont = NULL; char line[256]; char ext[4]; char cmd[256]; char *fontname = NULL; #if defined(PIPES) char *envcmd = NULL; TBOOLEAN ispipe = FALSE; #endif ext[0] = '\0'; cmd[0] = '\0'; if (doload) fprintf(gppsfile,"%%%%BeginProcSet: %s\n", current_ps_fontfile->fontfile_name); /* get filename extension if no pipe (if pipe *ext=='\0') */ #if defined(PIPES) if (*(current_ps_fontfile->fontfile_name) != '<') { /* Filename is given */ #endif if (strlen(current_ps_fontfile->fontfile_name) > 3) strcpy(ext, current_ps_fontfile->fontfile_name + strlen(current_ps_fontfile->fontfile_name) - 3); else strcpy(ext, current_ps_fontfile->fontfile_name); /* make extension lowercase for comparison */ lower_case(ext); if (!current_ps_fontfile->fontfile_fullname) int_error(NO_CARET, "Font file '%s' not found", current_ps_fontfile->fontfile_name); #if defined(PIPES) } #endif if (strlen(ext) == 0) { #if defined(PIPES) /* Pipe is given */ ispipe = TRUE; strcpy(cmd,current_ps_fontfile->fontfile_name + 1); ffont = popen(cmd, "r"); if (!ffont) int_error(NO_CARET, "Could not execute pipe '%s'", current_ps_fontfile->fontfile_name + 1); #endif } else if (strcmp(ext,"ttf") == 0) { /* TrueType */ #if defined(PIPES) ispipe = TRUE; envcmd = getenv("GNUPLOT_TTFTOPFA"); if (envcmd != NULL) sprintf(cmd,envcmd,current_ps_fontfile->fontfile_fullname); else sprintf(cmd,"ttf2pt1 -a -e -W 0 %s -", current_ps_fontfile->fontfile_fullname); if (strlen(cmd) == 0) int_error(NO_CARET, "No command for automatic font conversion ttf->pfa defined"); else { ffont = popen(cmd,"r"); if (!ffont) int_error(NO_CARET,"Could not execute command '%s'", cmd); } #else os_error(NO_CARET, "Automatic font conversion ttf->pfa not supported"); #endif } else if (strcmp(ext,"pfb") == 0) { /* PFB */ #if defined(PIPES) ispipe = TRUE; envcmd = getenv("GNUPLOT_PFBTOPFA"); if (envcmd != NULL) sprintf(cmd,envcmd,current_ps_fontfile->fontfile_fullname); else sprintf(cmd,"pfbtops %s", current_ps_fontfile->fontfile_fullname); if (strlen(cmd) == 0) int_error(NO_CARET, "No command for automatic font conversion pfb->pfa defined"); else { ffont = popen(cmd,"r"); if (!ffont) int_error(NO_CARET,"Could not execute command '%s'", cmd); } #else os_error(NO_CARET, "Automatic font conversion pfb->pfa not supported"); #endif } else { /* PFA */ if (strcmp(ext,"pfa") != 0) int_warn(NO_CARET, "Font file '%s' has unknown extension. Assume it is a pfa file", current_ps_fontfile->fontfile_name); ffont = fopen(current_ps_fontfile->fontfile_fullname, "r"); if (!ffont) int_error(NO_CARET, "Font file '%s' not found", current_ps_fontfile->fontfile_name); } /* read the file */ while (fgets(line,255,ffont)) { /* test file format */ if ((linesread == 0) && (strstr(line,"%!PS-AdobeFont") != line) && (strstr(line,"%!FontType1") != line)) { #if defined(PIPES) if (ispipe) int_warn(NO_CARET, "Command '%s' seems not to generate PFA data", cmd); else #endif int_warn(NO_CARET, "Font file '%s' seems not to be a PFA file", current_ps_fontfile->fontfile_name); } /* get fontname */ if (strstr(line,"/FontName") == line) { char *fnende = NULL; fontname = gp_alloc(strlen(line)-9,"load_fontfiles"); strcpy(fontname,strstr(line+1,"/")+1); fnende = strstr(fontname," "); *fnende = '\0'; /* Print font name */ if (!doload) { if (current_ps_fontfile->fontfile_fullname) fprintf(stderr, "Font file '%s' contains the font '%s'. Location:\n %s\n", current_ps_fontfile->fontfile_name, fontname, current_ps_fontfile->fontfile_fullname); else fprintf(stderr, "Pipe '%s' contains the font '%s'.\n", current_ps_fontfile->fontfile_name, fontname); #if defined(PIPES) /* Stop reading font file in order to save time */ /* This does not work for pipes because they give the */ /* error message 'broken pipe' */ if (!ispipe) #endif break; } } if (doload) fputs(line, gppsfile); ++linesread; } #if defined(PIPES) if (ispipe) { int exitcode; if ((exitcode = pclose(ffont)) != 0) int_error(NO_CARET, "Command '%s' generated error, exitcode is %d", cmd, exitcode); } else #endif fclose(ffont); if (linesread == 0) { #if defined(PIPES) if (ispipe) int_error(NO_CARET, "Command '%s' generates empty output", cmd); else #endif int_error(NO_CARET, "Font file '%s' is empty", current_ps_fontfile->fontfile_name); } if (doload) fputs("%%EndProcSet\n", gppsfile); /* Computer Modern Symbol font with corrected baseline if the * font CMEX10 is embedded */ if (doload && fontname && (strcmp(fontname,"CMEX10") == 0)) { fputs("%%BeginProcSet: CMEX10-Baseline\n", gppsfile); fputs("/CMEX10-Baseline /CMEX10 findfont [1 0 0 1 0 1] makefont\n", gppsfile); fputs("dup length dict begin {1 index /FID eq {pop pop} {def} ifelse} forall\n", gppsfile); fputs("currentdict end definefont pop\n", gppsfile); fputs("%%EndProcSet\n",gppsfile); } if (fontname) { free(fontname); fontname = NULL; } } } TERM_PUBLIC void PS_load_fontfiles(TBOOLEAN doload) { struct ps_fontfile_def *current_ps_fontfile=ps_params->first_fontfile; while (current_ps_fontfile) { PS_load_fontfile(current_ps_fontfile,doload); current_ps_fontfile = current_ps_fontfile->next; } } TERM_PUBLIC void PS_common_init( TBOOLEAN uses_fonts, /* FALSE for (e)ps(la)tex */ unsigned int xoff, unsigned int yoff, /* how much to translate by */ unsigned int bb_xmin, unsigned int bb_ymin, unsigned int bb_xmax, unsigned int bb_ymax, /* bounding box */ const char **dict) /* extra entries for the dictionary */ { static const char GPFAR psi1[] = "\ %%%%Creator: gnuplot %s patchlevel %s\n\ %%%%CreationDate: %s\n\ %%%%DocumentFonts: %s\n"; static const char GPFAR psi2[] = "\ %%%%EndComments\n\ %%%%BeginProlog\n\ /gnudict 256 dict def\ngnudict begin\n\ %%\n\ %% The following 6 true/false flags may be edited by hand if required\n\ %% The unit line width may also be changed\n\ %%\n\ /Color %s def\n\ /Blacktext %s def\n\ /Solid %s def\n\ /Dashlength %g def\n\ /Landscape %s def\n\ /Level1 %s def\n\ /Rounded %s def\n\ /TransparentPatterns false def\n\ /gnulinewidth %.3f def\n\ /userlinewidth gnulinewidth def\n\ %%\n\ /vshift %d def\n\ /dl1 {\n\ %.1f Dashlength mul mul\n\ Rounded { currentlinewidth 0.75 mul sub dup 0 le { pop 0.01 } if } if\n\ } def\n\ /dl2 {\n\ %.1f Dashlength mul mul\n\ Rounded { currentlinewidth 0.75 mul add } if\n\ } def\n\ /hpt_ %.1f def\n\ /vpt_ %.1f def\n\ /hpt hpt_ def\n\ /vpt vpt_ def\n"; static const char GPFAR psi3[] = "\ Level1 {} {\n\ /SDict 10 dict def\n\ systemdict /pdfmark known not {\n\ userdict /pdfmark systemdict /cleartomark get put\n\ } if\n\ SDict begin [\n\ /Title (%s)\n\ /Subject (gnuplot plot)\n\ /Creator (gnuplot %s patchlevel %s)\n\ /Author (%s)\n\ %% /Producer (gnuplot)\n\ %% /Keywords ()\n\ /CreationDate (%s)\n\ /DOCINFO pdfmark\n\ end\n\ } ifelse\n"; struct termentry *t = term; int i; time_t now; char *timedate; ps_common_uses_fonts = uses_fonts; ps_common_xoff = xoff; ps_common_yoff = yoff; ps_page = 0; time(&now); timedate=asctime(localtime(&now)); timedate[strlen(timedate)-1]='\0'; #ifdef PSLATEX_DRIVER /* Set files for (e)ps(la)tex terminals */ switch (ps_params->terminal) { case PSTERM_EPSLATEX: EPSLATEX_common_init(); break; case PSTERM_PSLATEX: case PSTERM_PSTEX: PSTEX_common_init(); break; default:; /* do nothing, just avoid a compiler warning */ } #endif if (ps_params->psformat == PSTERM_EPS) fputs("%!PS-Adobe-2.0 EPSF-2.0\n", gppsfile); else fputs("%!PS-Adobe-2.0\n", gppsfile); if (outstr) fprintf(gppsfile, "%%%%Title: %s\n", outstr); /* JFi */ fprintf(gppsfile, psi1, gnuplot_version, gnuplot_patchlevel, timedate, uses_fonts ? "(atend)" : ""); fprintf(gppsfile,"%%%%BoundingBox: %d %d %d %d\n", xoff + bb_xmin, yoff + bb_ymin, xoff + bb_xmax, yoff + bb_ymax); if ((ps_params->terminal == PSTERM_POSTSCRIPT) && (ps_params->psformat != PSTERM_EPS)) fprintf(gppsfile,"%%%%Orientation: %s\n", ps_params->psformat == PSTERM_LANDSCAPE ? "Landscape" : "Portrait"); if (ps_params->psformat != PSTERM_EPS) fputs("%%Pages: (atend)\n", gppsfile); fprintf(gppsfile, psi2, ps_params->color ? "true" : "false", ps_params->blacktext ? "true" : "false", ps_params->solid ? "true" : "false", ps_params->dash_length, /* dash length */ ps_params->psformat == PSTERM_LANDSCAPE ? "true" : "false", ps_params->level1 ? "true" : "false", ps_params->rounded ? "true" : "false", PS_LW*ps_params->linewidth_factor, /* line width */ (int)(t->v_char)/(-3), /* shift for vertical centring */ PS_SC*1.0, /* dash length */ PS_SC*1.0, /* dash length */ PS_HTIC/2.0, /* half point width */ PS_VTIC/2.0); /* half point height */ /* HH: print pdf information interpreted by ghostscript/acrobat */ { char *username=getusername(); char *username2=PS_escape_string(username,"()\\"); char *outstr2=PS_escape_string(outstr,"()\\"); fprintf(gppsfile, psi3, outstr2?outstr2:"", gnuplot_version, gnuplot_patchlevel, username2?username2:"", timedate); if (username) free(username); if (username2) free(username2); if (outstr2) free(outstr2); } /* insert font encoding vector */ if (uses_fonts) { switch (encoding) { case S_ENC_ISO8859_1: PS_dump_prologue_file("8859-1.ps"); break; case S_ENC_ISO8859_2: PS_dump_prologue_file("8859-2.ps"); break; case S_ENC_ISO8859_15: PS_dump_prologue_file("8859-15.ps"); break; case S_ENC_CP437: PS_dump_prologue_file("cp437.ps"); break; case S_ENC_CP850: PS_dump_prologue_file("cp850.ps"); break; case S_ENC_CP852: PS_dump_prologue_file("cp852.ps"); break; case S_ENC_CP1250: PS_dump_prologue_file("cp1250.ps"); break; case S_ENC_KOI8_R: PS_dump_prologue_file("koi8r.ps"); break; case S_ENC_KOI8_U: PS_dump_prologue_file("koi8u.ps"); break; case S_ENC_DEFAULT: default: break; } } /* Dump the body of the prologue */ PS_dump_prologue_file("prologue.ps"); /* Redefine old epslatex linetypes if requested */ if ((ps_params->terminal == PSTERM_EPSLATEX) && ps_params->oldstyle) { for (i = 0; OldEPSL_linetypes[i] != NULL; i++) fprintf(gppsfile,"%s",OldEPSL_linetypes[i]); } if (ps_params->duplex_option) fprintf(gppsfile, "statusdict begin %s setduplexmode end\n", ps_params->duplex_state ? "true" : "false"); if (dict) while (*dict) fputs(*(dict++), gppsfile); if (uses_fonts) { PS_load_fontfiles(TRUE); PS_RememberFont(ps_params->font, 1); } fputs("end\n%%EndProlog\n", gppsfile); } /* the init fn for the postscript driver */ TERM_PUBLIC void PS_init() { unsigned int xmin_t = 0, ymin_t = 0, xmax_t = 0, ymax_t = 0; switch (ps_params->psformat) { case PSTERM_EPS: if (ps_explicit_size) { term->xmax = eps_explicit_x; term->ymax = eps_explicit_y; } else { term->xmax = PS_XMAX; if (ps_params->oldstyle) term->ymax = PS_YMAX_OLDSTYLE; else term->ymax = PS_YMAX; } xmin_t = term->xmax * xoffset / (2*PS_SC); xmax_t = term->xmax * (xsize + xoffset) / (2*PS_SC); ymin_t = term->ymax * yoffset / (2*PS_SC); ymax_t = term->ymax * (ysize + yoffset) / (2*PS_SC); break; case PSTERM_PORTRAIT: if (!ps_explicit_size) { term->xmax = PS_YMAX; term->ymax = PS_XMAX; } xmin_t = term->xmax * xoffset / PS_SC; xmax_t = term->xmax * (xsize + xoffset) / PS_SC; ymin_t = term->ymax * yoffset / PS_SC; ymax_t = term->ymax * (ysize + yoffset) / PS_SC; break; case PSTERM_LANDSCAPE: if (!ps_explicit_size) { term->xmax = PS_XMAX; term->ymax = PS_YMAX; } ymin_t = term->xmax * xoffset / PS_SC; ymax_t = term->xmax * (xsize+xoffset) / PS_SC; xmin_t = term->ymax * (1-ysize-yoffset) / PS_SC; xmax_t = term->ymax * (1-yoffset) / PS_SC; break; default: int_error(NO_CARET, "invalid postscript format used"); } /* for enhanced postscript, copy ps_params->font to ps_enh_font * does no harm for non-enhanced */ strcpy(ps_enh_font, ps_params->font); ps_enh_fontsize = ps_fontsize; switch (ps_params->terminal) { case PSTERM_POSTSCRIPT: gppsfile = gpoutfile; break; default: #ifdef PSLATEX_DRIVER PSTEX_reopen_output(); break; case PSTERM_EPSLATEX: EPSLATEX_reopen_output(); #endif break; } PS_common_init(ps_params->terminal == PSTERM_POSTSCRIPT, ps_params->xoff, ps_params->yoff, xmin_t, ymin_t, xmax_t, ymax_t, (term->put_text == ENHPS_put_text) ? ENHPS_header : NULL); /* Keep track of whether we have written the enhanced text dictionary yet */ ENHPS_initialized = (term->put_text == ENHPS_put_text) ? 2 : 1; } TERM_PUBLIC void PS_graphics() { static char GPFAR psg1[] = "0 setgray\nnewpath\n"; struct termentry *t = term; ps_page++; if (ps_params->psformat != PSTERM_EPS) fprintf(gppsfile,"%%%%Page: %d %d\n",ps_page,ps_page); /* If we are about to use enhanced text mode for the first time in a plot that */ /* was initialized previously without it, we need to write out the macros now */ if (term->put_text == ENHPS_put_text && ENHPS_initialized == 1) { const char **dict = ENHPS_header; while (*dict) fputs(*(dict++), gppsfile); fprintf(stderr,"Writing out PostScript macros for enhanced text mode\n"); ENHPS_initialized = 2; } fprintf(gppsfile,"\ gnudict begin\ngsave\n\ %d %d translate\n\ %.3f %.3f scale\n", ps_common_xoff, ps_common_yoff, (ps_params->psformat == PSTERM_EPS ? 0.5 : 1.0)/PS_SC, (ps_params->psformat == PSTERM_EPS ? 0.5 : 1.0)/PS_SC); if (ps_params->psformat == PSTERM_LANDSCAPE) fprintf(gppsfile,"90 rotate\n0 %d translate\n", -(int)(term->ymax)); fprintf(gppsfile, psg1); if (ps_common_uses_fonts) fprintf(gppsfile, "(%s) findfont %d scalefont setfont\n", ps_params->font, (t->v_char)); ps_path_count = 0; PS_relative_ok = FALSE; PS_pen_x = PS_pen_y = -4000; PS_taken = 0; PS_linewidth_last = PS_linetype_last = LT_UNDEFINED; } TERM_PUBLIC void PS_text() { ps_path_count = 0; fputs("stroke\ngrestore\nend\nshowpage\n", gppsfile); /* fprintf(stderr,"taken %d times\n",PS_taken); */ /* informational: tells how many times it was "cheaper" * to do a relative moveto or lineto rather than an * absolute one */ } TERM_PUBLIC void PS_reset() { fputs("%%Trailer\n", gppsfile); /* I think the following commands should be executed `if (ps_common_uses_fonts)`. So I changed the next line. Please see "PS_RememberFont", too. */ /* JFi */ /* if (!ps_common_uses_fonts) { */ /* JFi */ if (ps_common_uses_fonts) { fputs("%%DocumentFonts: ", gppsfile); while (PS_DocFonts) { struct PS_FontName *fnp; fnp = PS_DocFonts->next; fprintf(gppsfile, "%s%s", PS_DocFonts->name, fnp ? " " : "\n"); free(PS_DocFonts->name); free(PS_DocFonts); PS_DocFonts = fnp; } } if (ps_params->psformat != PSTERM_EPS) fprintf(gppsfile,"%%%%Pages: %d\n",ps_page); } TERM_PUBLIC void PS_linetype(int linetype) { if ((ps_params->terminal == PSTERM_EPSLATEX) && ps_params->oldstyle) linetype = (linetype % 4) + 3; else linetype = (linetype % 9) + 3; if (linetype < 0) /* LT_NODRAW, LT_BACKGROUND, LT_UNDEFINED */ linetype = 0; if (PS_linetype_last == linetype) return; PS_relative_ok = FALSE; PS_FLUSH_PATH; PS_linetype_last = linetype; fprintf(gppsfile, "LT%c\n", "wba012345678"[linetype]); ps_path_count = 0; } TERM_PUBLIC void PS_linewidth (double linewidth) { /* HBB NEW 20031219: don't do anything if nothing changed */ if (ps_path_count != 0 && PS_linewidth_last == linewidth) return; PS_linewidth_last = linewidth; PS_linetype_last = -1; /* disable cache for next linetype change */ PS_FLUSH_PATH; fprintf(gppsfile, "%.3f UL\n", linewidth); /* Documentation of the 'change linewidth' strategy of the postscript terminal: 1. define a new postscript variable with a default value: /userlinewidth gnulinewidth def 2. define a new postscript command to change the contents of that variable: /UL { gnulinewidth mul /userlinewidth exch def } def usage: multiplication_factor UL 3. modify the already known postscript command /PL for the plot lines: /PL { stroke userlinewidth setlinewidth } def 4. issue the new command before every change of the plot linestyle: example: 4.0 UL LT0 result: Linetype 0 is drawn four times as thick as defined by the contents of the postscript variable 'gnulinewidth'. */ } TERM_PUBLIC void PS_pointsize (double ptsize) { fprintf(gppsfile, "%.3f UP\n", ptsize); /* * Documentation of the 'change pointsize' strategy of the postscript * terminal: * * 1. define two new postscript variables to hold the overall pointsize: * /hpt_ and /vpt_ * * 2. define a new postscript command to use the contents of these variables: * /UP { cf. definition above } def * usage: multiplication_factor UP * * [3.] [doesn't exist, skip to next number] * * 4. issue the new command whereever you change the symbols (and linetype): * example: * 2.5 UP * 4.0 UL % optionally change linewidth, too * LT0 * result: * Next symbols will be drawn 2.5 times as big as defined by the * GNUPLOT `set pointsize` command (= overall pointsize). */ } TERM_PUBLIC void PS_move(unsigned int x, unsigned int y) { /* Make this semi-dynamic and independent of architecture */ char abso[5+2*INT_STR_LEN], rel[5+2*INT_STR_LEN]; int dx = x - PS_pen_x; int dy = y - PS_pen_y; /* can't cancel all null moves--need a move after stroke'ing */ if (dx==0 && dy==0 && PS_relative_ok) return; sprintf(abso, "%d %d M\n", x, y); sprintf(rel, "%d %d R\n", dx, dy); if (PS_newpath) { fprintf(gppsfile, "%d %d N\n", x, y); PS_newpath = FALSE; } else if (strlen(rel) < strlen(abso) && PS_relative_ok) { fputs(rel, gppsfile); PS_taken++; } else fputs(abso, gppsfile); PS_relative_ok = TRUE; ps_path_count += 1; PS_pen_x = x; PS_pen_y = y; } TERM_PUBLIC void PS_vector(unsigned int x, unsigned int y) { char abso[5+2*INT_STR_LEN], rel[5+2*INT_STR_LEN]; int dx = x - PS_pen_x; int dy = y - PS_pen_y; if (dx==0 && dy==0) return; sprintf(abso, "%d %d L\n", x, y); sprintf(rel, "%d %d V\n", dx, dy); /* The following PS_move() is executed only when the limit of ps_path_count * has been reached below: then PS_FLUSH_PATH has been called which has not * moved to currentpoint after the stroke. */ if (!PS_relative_ok) PS_move(PS_pen_x, PS_pen_y); if (strlen(rel) < strlen(abso)) { fputs(rel, gppsfile); PS_taken++; /* only used for debug info */ ps_path_count += 1; } else { fputs(abso, gppsfile); ps_path_count = 1; /* If we set it to zero, it may never get flushed */ } /* Ghostscript has a "pile-up of rounding errors" bug: a sequence of many * rmove's or rlineto's does not yield the same line as move's or lineto's. * Therefore, we periodically force an update of the absolute position. * There was a case when 400 rlineto's were too much, so let's go a little * bit higher than the default function sampling rate in gnuplot. * This runs into a second ghostscript bug, that mixing relative and absolute * lineto with no intervening 'stroke' is ridiculously slow to render. * So we stroke the partial line, update the position in absolute terms, * then continue. This whole section can go away if ghostscript/gv is fixed. */ #define MAX_REL_PATHLEN 105 if (ps_path_count >= MAX_REL_PATHLEN) { fprintf(gppsfile, "stroke %d %d M\n", x, y); ps_path_count = 1; } PS_relative_ok = TRUE; PS_pen_x = x; PS_pen_y = y; } TERM_PUBLIC void PS_put_text(unsigned int x, unsigned int y, const char *str) { char ch; if (!str && !strlen(str)) return; PS_move(x,y); if (ps_ang != 0) fprintf(gppsfile,"currentpoint gsave translate %d rotate 0 0 M\n", ps_ang); putc('(',gppsfile); ch = *str++; while(ch!='\0') { if ((ch=='(') || (ch==')') || (ch=='\\')) putc('\\', gppsfile); putc(ch, gppsfile); ch = *str++; } switch(ps_justify) { case LEFT : fputs(") Lshow\n", gppsfile); break; case CENTRE : fputs(") Cshow\n", gppsfile); break; case RIGHT : fputs(") Rshow\n", gppsfile); break; } if (ps_ang != 0) fputs("grestore\n", gppsfile); ps_path_count = 0; PS_relative_ok = FALSE; } TERM_PUBLIC int PS_text_angle(int ang) { ps_ang = ang; return TRUE; } TERM_PUBLIC int PS_justify_text(enum JUSTIFY mode) { ps_justify = mode; return TRUE; } TERM_PUBLIC int PS_set_font(const char *font) { char *name; unsigned int i; float size; size_t sep; if (!font || !(*font)) font = PS_default_font; sep = strcspn(font,","); name = gp_strdup(font); name[sep] = NUL; for (i=0; iterminal == PSTERM_POSTSCRIPT) { PS_RememberFont(name,1); fprintf(gppsfile, "/%s findfont %g scalefont setfont\n", name, size*PS_SC); } free(name); term->v_char = (unsigned int)(size*PS_SC); term->h_char = (unsigned int)(size*PS_SC*6/10); return TRUE; } /* postscript point routines */ TERM_PUBLIC void PS_point(unsigned int x, unsigned int y, int number) { static const char GPFAR * GPFAR pointFNS[] = { "Pnt", "Pls", "Crs", "Star", "Box", "BoxF", "Circle", "CircleF", "TriU", "TriUF", "TriD", "TriDF", "Dia", "DiaF", "Pent", "PentF", "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", "C8", "C9", "C10", "C11", "C12", "C13", "C14", "C15", "S0", "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9", "S10", "S11", "S12", "S13", "S14", "S15", "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15", "BoxE", "CircE", "TriUE", "TriDE", "DiaE", "PentE", "BoxW", "CircW", "TriUW","TriDW", "DiaW", "PentW" }; static const char GPFAR * GPFAR pointFNS_OldEPSL[] = { "Pnt", "Dia", "Circle", "Pls", "Crs", "Box", "DiaF", "CircleF", "BoxF" }; if ((ps_params->terminal == PSTERM_EPSLATEX) && ps_params->oldstyle) { if (number < 0) number = -1; /* negative types are all 'dot' */ else number %= sizeof(pointFNS_OldEPSL)/sizeof(pointFNS_OldEPSL[0]) -1; fprintf(gppsfile, "%d %d %s\n", x, y, pointFNS_OldEPSL[number+1]); } else { if (number < 0) number = -1; /* negative types are all 'dot' */ else number %= sizeof(pointFNS)/sizeof(pointFNS[0]) -1; fprintf(gppsfile, "%d %d %s\n", x, y, pointFNS[number+1]); } PS_relative_ok = FALSE; ps_path_count = 0; PS_linewidth_last = PS_linetype_last = -1; /* force next linetype change */ } TERM_PUBLIC void PS_fillbox( int style, unsigned int x1, unsigned int y1, unsigned int width, unsigned int height) { double filldens; int pattern; PS_FLUSH_PATH; switch(style & 0xf) { case FS_SOLID: /* style == 1 --> fill with intensity according to filldensity */ filldens = (style >> 4) / 100.0; if(filldens < 0.0) filldens = 0.0; if(filldens > 1.0) filldens = 1.0; fprintf(gppsfile, "%.3f %d %d %d %d BoxColFill\n", filldens, x1,y1, width,height); break; case FS_PATTERN: /* style == 2 --> fill with pattern according to fillpattern */ /* the upper 3 nibbles of 'style' contain pattern number */ pattern = (style >> 4) % 8; switch (pattern) { default: case 0: fprintf(gppsfile, "%d %d %d %d BoxFill\n", x1, y1, width, height); break; case 1: fprintf(gppsfile, "%d %d %d %d %d %d 1 PatternFill\n", x1, y1, width, height, 80, -45); break; case 2: fprintf(gppsfile, "%d %d %d %d %d %d 2 PatternFill\n", x1, y1, width, height, 40, 45); break; case 3: fprintf(gppsfile, "1 %d %d %d %d BoxColFill\n", x1, y1, width, height); break; case 4: fprintf(gppsfile, "%d %d %d %d %d %d 0 PatternFill\n", x1, y1, width, height, 80, 45); break; case 5: fprintf(gppsfile, "%d %d %d %d %d %d 0 PatternFill\n", x1, y1, width, height, 80, -45); break; case 6: fprintf(gppsfile, "%d %d %d %d %d %d 0 PatternFill\n", x1, y1, width, height, 40, 30); break; case 7: fprintf(gppsfile, "%d %d %d %d %d %d 0 PatternFill\n", x1, y1, width, height, 40, -30); break; } break; /* end of pattern filling part */ default: /* style == 0 or unknown --> fill with background color */ fprintf(gppsfile, "%d %d %d %d BoxFill\n", x1, y1, width, height); } PS_relative_ok = FALSE; PS_linewidth_last = PS_linetype_last = -1; } /* ENHPOST */ static TBOOLEAN ENHps_opened_string; /* try to cut out empty ()'s */ /* * close a postscript string if it has been opened */ TERM_PUBLIC void ENHPS_FLUSH() { if (ENHps_opened_string) { fputs(")]\n", gppsfile); ENHps_opened_string = FALSE; } } /* * open a postscript string */ TERM_PUBLIC void ENHPS_OPEN( char *fontname, double fontsize, double base, TBOOLEAN widthflag, TBOOLEAN showflag, int overprint) { /* overprint 3 means save current position; 4 means restore saved position */ /* EAM FIXME - I couldn't figure out how to use less than the 7 parameters */ /* that the normal case macro wants. Somebody more familiar with PostScript*/ /* than I am please clean it up! */ if (overprint == 3) { fputs("XYsave\n", gppsfile); return; } else if (overprint == 4) { fputs("XYrestore\n", gppsfile); return; } if (!ENHps_opened_string) { fprintf(gppsfile, "[(%s) %.1f %.1f %s %s %d (", fontname, fontsize, base, widthflag ? "true" : "false", showflag ? "true" : "false", overprint); ENHps_opened_string = TRUE; } } /* * write one or more characters from inside enhanced text processing */ TERM_PUBLIC void ENHPS_WRITEC(int c) { fputc(c, gppsfile); } /* a set-font routine for enhanced post : simply copies * the font into a global, or restores the globals * to the ps_params->font default */ TERM_PUBLIC int ENHPS_set_font(const char *font) { if (ignore_enhanced_text) return PS_set_font(font); if (*font) { size_t sep = strcspn(font,","); if (sep > 0) { strncpy(ps_enh_font,font,sep); ps_enh_font[sep] = NUL; PS_RememberFont(ps_enh_font, 1); } ps_enh_fontsize = ps_fontsize; sscanf (font+sep+1,"%f",&ps_enh_fontsize); } else { /* return to defaults */ strcpy(ps_enh_font, ps_params->font); ps_enh_fontsize = ps_fontsize; } term->v_char = (unsigned int)(ps_enh_fontsize*PS_SC); term->h_char = (unsigned int)(ps_enh_fontsize*PS_SC*6/10); return TRUE; } TERM_PUBLIC void ENHPS_put_text(unsigned int x, unsigned int y, const char *str) { if (ignore_enhanced_text) { PS_put_text(x,y,str); return; } /* flush any pending graphics (all the XShow routines do this...) */ if (!strlen(str)) return; PS_FLUSH_PATH; /* if there are no magic characters, we should just be able * punt the string to PS_put_text(), which will give shorter * ps output [eg tics and stuff rarely need extra processing], * but we need to make sure that the current font is the * default one before we can do that. {ie I tried it and it * used the wrong font !} * if (!strpbrk(str, "{}^_@&~")) * { * - do something to ensure default font is selected * PS_put_text(x,y,str); * return; * } */ PS_move(x,y); if (ps_ang != 0) fprintf(gppsfile,"currentpoint gsave translate %d rotate 0 0 moveto\n", ps_ang); fputs("[ ", gppsfile); /* set up the global variables needed by enhanced_recursion() */ enhanced_max_height = -1000; enhanced_min_height = 1000; enhanced_fontscale = PS_SC; strncpy(enhanced_escape_format,"\\%o",sizeof(enhanced_escape_format)); ENHps_opened_string = FALSE; /* Set the recursion going. We say to keep going until a * closing brace, but we don't really expect to find one. * If the return value is not the nul-terminator of the * string, that can only mean that we did find an unmatched * closing brace in the string. We increment past it (else * we get stuck in an infinite loop) and try again. * * ps_enh_font and ps_enh_fontsize are either set to the * the defaults set on option line, or have been set to * "font,size". That is to say, ps_params->font is used only * at startup and by ENHPS_set_font */ while (*(str = enhanced_recursion((char *)str, TRUE, ps_enh_font, (double)(ps_enh_fontsize*PS_SC), 0.0, TRUE, TRUE, 0))) { ENHPS_FLUSH(); /* I think we can only get here if *str == '}' */ enh_err_check(str); if (!*++str) break; /* end of string */ /* else carry on and process the rest of the string */ } enhanced_max_height += enhanced_min_height; fprintf(gppsfile, "] %.1f ", -enhanced_max_height/3); switch(ps_justify) { case LEFT : fputs("MLshow\n", gppsfile); break; case CENTRE : fputs("MCshow\n", gppsfile); break; case RIGHT : fputs("MRshow\n", gppsfile); break; } if (ps_ang != 0) fputs("grestore\n", gppsfile); ps_path_count = 0; PS_relative_ok = FALSE; } static void make_palette_formulae() { #define R sm_palette.formulaR #define G sm_palette.formulaG #define B sm_palette.formulaB /* print the definition of R,G,B formulae */ fputs("/InterpolatedColor false def\n", gppsfile); if (sm_palette.ps_allcF == 0) { /* print only those 3 used formulae */ fprintf(gppsfile, "/cF%i {%s} bind def\t%% %s\n", abs(R), ps_math_color_formulae[ 2*abs(R) ], ps_math_color_formulae[ 2*abs(R)+1 ]); if (abs(G) != abs(R)) fprintf(gppsfile, "/cF%i {%s} bind def\t%% %s\n", abs(G), ps_math_color_formulae[ 2*abs(G) ], ps_math_color_formulae[ 2*abs(G)+1 ]); if ((abs(B) != abs(R)) && (abs(B) != abs(G))) fprintf(gppsfile, "/cF%i {%s} bind def\t%% %s\n", abs(B), ps_math_color_formulae[ 2*abs(B) ], ps_math_color_formulae[ 2*abs(B)+1 ]); } else { /* all color formulae are written into the output PostScript file */ int i = 0; while (*(ps_math_color_formulae[2*i])) { fprintf(gppsfile, "/cF%i {%s} bind def\t%% %s\n", i, ps_math_color_formulae[ 2*i ], ps_math_color_formulae[ 2*i+1 ]); i++; } } #undef R #undef G #undef B } static void make_interpolation_code() { static const char *header[] = { "/grayindex {/gidx 0 def\n", " {GrayA gidx get grayv ge {exit} if /gidx gidx 1 add def} loop} def\n", "/dgdx {grayv GrayA gidx get sub GrayA gidx 1 sub get\n", " GrayA gidx get sub div} def \n", "/redvalue {RedA gidx get RedA gidx 1 sub get\n", " RedA gidx get sub dgdxval mul add} def\n", "/greenvalue {GreenA gidx get GreenA gidx 1 sub get\n", " GreenA gidx get sub dgdxval mul add} def\n", "/bluevalue {BlueA gidx get BlueA gidx 1 sub get\n", " BlueA gidx get sub dgdxval mul add} def\n", "/interpolate {\n", " grayindex grayv GrayA gidx get sub abs 1e-5 le\n", " {RedA gidx get GreenA gidx get BlueA gidx get}\n", " {/dgdxval dgdx def redvalue greenvalue bluevalue} ifelse} def\n", NULL, }; int i; for(i=0; header[i]!=NULL; ++i) { fputs(header[i], gppsfile); } } static void make_color_model_code() { /* Postscript version of the color space transformations in getcolor.c */ static const char *header[] = { "/HSV2RGB {", " exch dup 0.0 eq {pop exch pop dup dup} % achromatic gray\n", " { /HSVs exch def /HSVv exch def 6.0 mul dup floor dup 3 1 roll sub\n ", " /HSVf exch def /HSVi exch cvi def /HSVp HSVv 1.0 HSVs sub mul def\n", " /HSVq HSVv 1.0 HSVs HSVf mul sub mul def \n", " /HSVt HSVv 1.0 HSVs 1.0 HSVf sub mul sub mul def\n", " /HSVi HSVi 6 mod def 0 HSVi eq {HSVv HSVt HSVp}\n", " {1 HSVi eq {HSVq HSVv HSVp}{2 HSVi eq {HSVp HSVv HSVt}\n", " {3 HSVi eq {HSVp HSVq HSVv}{4 HSVi eq {HSVt HSVp HSVv}\n", " {HSVv HSVp HSVq} ifelse} ifelse} ifelse} ifelse} ifelse\n", " } ifelse} def\n", "/Constrain {\n", " dup 0 lt {0 exch pop}{dup 1 gt {1 exch pop} if} ifelse} def\n", "/YIQ2RGB {\n", " 3 copy -1.702 mul exch -1.105 mul add add Constrain 4 1 roll\n", " 3 copy -0.647 mul exch -0.272 mul add add Constrain 5 1 roll\n", " 0.621 mul exch -0.956 mul add add Constrain 3 1 roll } def\n", "/CMY2RGB {", " 1 exch sub exch 1 exch sub 3 2 roll 1 exch sub 3 1 roll exch } def\n", "/XYZ2RGB {", " 3 copy -0.9017 mul exch -0.1187 mul add exch 0.0585 mul exch add\n", " Constrain 4 1 roll 3 copy -0.0279 mul exch 1.999 mul add exch\n", " -0.9844 mul add Constrain 5 1 roll -0.2891 mul exch -0.5338 mul add\n", " exch 1.91 mul exch add Constrain 3 1 roll} def\n", "/SelectSpace {ColorSpace (HSV) eq {HSV2RGB}{ColorSpace (XYZ) eq {\n", " XYZ2RGB}{ColorSpace (CMY) eq {CMY2RGB}{ColorSpace (YIQ) eq {YIQ2RGB}\n", " if} ifelse} ifelse} ifelse} def\n", NULL, }; int i; for(i=0; header[i]!=NULL; ++i) { fputs(header[i], gppsfile); } } static char *save_space(double gray) { /* printing the gray with 4 digits and without the leading 0 * ... saving space */ static char s[40]; gray = 0.0001*(int)(gray*10000+0.5); /* round it to 4 digits */ sprintf(s, "%.4g", gray); if (s[0] == '0' && s[1] == '.') return &(s[1]); /* strip leading 0 */ else return s; } static void write_color_space(t_sm_palette *palette) { /* write something like * /ColorSpace (HSV) def * depending on the selected cmodel in palette */ fputs("/ColorSpace ", gppsfile); switch(palette->cmodel) { case C_MODEL_RGB: fputs("(RGB)", gppsfile); break; case C_MODEL_HSV: fputs("(HSV)", gppsfile); break; case C_MODEL_CMY: fputs("(CMY)", gppsfile); break; case C_MODEL_YIQ: fputs("(YIQ)", gppsfile); break; case C_MODEL_XYZ: fputs("(XYZ)", gppsfile); break; default: fprintf(stderr,"%s:%d ooops: Unkown color model '%c'. Will be RGB\n", __FILE__, __LINE__, (char)(palette->cmodel)); fputs("(RGB)", gppsfile); break; } fputs(" def\n", gppsfile); } static void write_component_array(const char *text, gradient_struct *grad, int cnt, int offset) { /* write someting like * /RedA [ 0 .1 .2 .3 .35 .3 .2 .1 0 0 0 ] def * nicely formated to gppsfile */ int i=0, len=0; char *val; fprintf(gppsfile, "/%s [", text); len = strlen(text) + 4; for(i=0; i 77) { fputs("\n ",gppsfile); len = strlen(val) + 3; } fprintf(gppsfile, "%s ", val); } fputs("] def\n", gppsfile); } static void write_gradient_definition(gradient_struct *gradient, int cnt) { /* some strange pointer acrobatic here, but it seems to work... */ char *ref = (char*) (gradient); int p = (char*) (&(gradient[0].pos)) - ref; int r = (char*) (&(gradient[0].col.r)) - ref; int g = (char*) (&(gradient[0].col.g)) - ref; int b = (char*) (&(gradient[0].col.b)) - ref; write_component_array("GrayA", gradient, cnt, p); write_component_array("RedA", gradient, cnt, r); write_component_array("GreenA", gradient, cnt, g); write_component_array("BlueA", gradient, cnt, b); } static void PS_make_header(t_sm_palette *palette) { /* write header for smooth colors */ fputs("gsave % colour palette begin\n", gppsfile); fprintf(gppsfile, "/maxcolors %i def\n", sm_palette.use_maxcolors); make_color_model_code(); switch(sm_palette.colorMode) { case SMPAL_COLOR_MODE_GRAY: fputs("/InterpolatedColor false def\n", gppsfile); break; /* nothing to do for gray */ case SMPAL_COLOR_MODE_RGB: make_palette_formulae(); break; case SMPAL_COLOR_MODE_FUNCTIONS: { int cnt=0; gradient_struct *gradient; fputs("/InterpolatedColor true def\n", gppsfile); make_interpolation_code(); gradient = approximate_palette(palette, ps_params->palfunc_samples, ps_params->palfunc_deviation, &cnt); write_gradient_definition(gradient, cnt); free(gradient); break; } case SMPAL_COLOR_MODE_GRADIENT: fputs("/InterpolatedColor true def\n", gppsfile); make_interpolation_code(); write_gradient_definition(palette->gradient, palette->gradient_num); break; default: fprintf(stderr, "%s:%d ooops: Unknown color mode '%c'\n", __FILE__, __LINE__, (char)(sm_palette.colorMode)); } fputs("/pm3dround {maxcolors 0 gt {dup 1 ge\n", gppsfile); fputs("\t{pop 1} {maxcolors mul floor maxcolors 1 sub div} ifelse} if} def\n", gppsfile); fprintf(gppsfile, "/pm3dGamma 1.0 %g div def\n", sm_palette.gamma); write_color_space(palette); /* Now print something like /g {dup cF7 exch dup cF5 exch cF15 setrgbcolor} bind def */ #define R sm_palette.formulaR #define G sm_palette.formulaG #define B sm_palette.formulaB /* 18.1.2009 Since the beginning of pm3d, the Color definition switched between gray and colour map. This led to ambiguities for custom colour palettes if they contain grays only. Thus let postscript choose always always colour palette for interpolated colours ('set palette defined', 'set palette file') and colour/gray according to Color otherwise ('set palette gray', 'set palette rgb'). */ #if 0 fprintf(gppsfile, "Color %s and { %% COLOUR vs. GRAY map\n", (sm_palette.colorMode!=SMPAL_COLOR_MODE_GRAY) ? "true":"false"); #else if (sm_palette.colorMode == SMPAL_COLOR_MODE_GRAY) fputs("false { % COLOUR vs. GRAY map\n", gppsfile); else fputs("Color InterpolatedColor or { % COLOUR vs. GRAY map\n", gppsfile); #endif fputs(" InterpolatedColor { %% Interpolation vs. RGB-Formula\n", gppsfile); fputs(" /g {stroke pm3dround /grayv exch def interpolate\n", gppsfile); fputs(" SelectSpace setrgbcolor} bind def\n", gppsfile); fputs(" }{\n", gppsfile); fputs(" /g {stroke pm3dround dup ", gppsfile); if (R < 0) fputs("1 exch sub ", gppsfile); /* negate */ fprintf(gppsfile,"cF%i Constrain exch dup ", abs(R)); if (G < 0) fputs("1 exch sub ", gppsfile); /* negate */ fprintf(gppsfile,"cF%i Constrain exch ", abs(G)); if (R<0 || G<0 || B<0) fputs("\n\t", gppsfile); if (B < 0) fputs("1 exch sub ", gppsfile); /* negate */ fprintf(gppsfile,"cF%i Constrain ", abs(B)); fputs("\n SelectSpace setrgbcolor} bind def\n", gppsfile); fputs(" } ifelse\n", gppsfile); fputs("}{\n", gppsfile); fputs(" /g {stroke pm3dround pm3dGamma exp setgray} bind def\n", gppsfile); fputs("} ifelse\n", gppsfile); #undef R #undef G #undef B } TERM_PUBLIC int PS_make_palette (t_sm_palette *palette) { if (palette == NULL) { return 0; /* postscript can do continuous colors */ } PS_make_header(palette); return 0; } TERM_PUBLIC void PS_set_color (t_colorspec *colorspec) { double gray; PS_linetype_last = -1; /* Force next call to linetype to be honored */ if (colorspec->type == TC_LT) { int linetype = colorspec->lt; PS_FLUSH_PATH; if ((ps_params->terminal == PSTERM_EPSLATEX) && ps_params->oldstyle) linetype = (linetype % 4) + 3; else linetype = (linetype % 9) + 3; if (linetype < 0) /* LT_NODRAW, LT_BACKGROUND, LT_UNDEFINED */ linetype = 0; fprintf(gppsfile, "LC%1c setrgbcolor\n","wba012345678"[linetype]); } else if (colorspec->type == TC_RGB) { double r = (double)((colorspec->lt >> 16 ) & 255) / 255.; double g = (double)((colorspec->lt >> 8 ) & 255) / 255.; double b = (double)(colorspec->lt & 255) / 255.; PS_FLUSH_PATH; fprintf(gppsfile, "%3.2f %3.2f %3.2f C ",r,g,b); } if (colorspec->type != TC_FRAC) return; /* map [0;1] to gray/colors */ gray = colorspec->value; if (gray <= 0) fputs("0 g ", gppsfile); else { if (gray >= 1) fputs("1 g ", gppsfile); else fprintf(gppsfile, "%s g ", save_space(gray)); } PS_relative_ok = FALSE; /* "M" required because "g" forces stroke (??) */ } TERM_PUBLIC void PS_filled_polygon (int points, gpiPoint *corners) { int i; float filldens = 1.0; int pattern = 0; int style = corners->style; /* Stroke the previous graphic element if required. */ if (PS_relative_ok) PS_FLUSH_PATH; if (points == 4 && style == FS_OPAQUE) { /* Special case for pm3d surface quadrangles * ... h */ fprintf(gppsfile, "%i %i N", corners[0].x, corners[0].y); fprintf(gppsfile, " %i %i %i %i %i %i h\n", corners[3].x-corners[2].x, corners[3].y-corners[2].y, corners[2].x-corners[1].x, corners[2].y-corners[1].y, corners[1].x-corners[0].x, corners[1].y-corners[0].y); } else { /* General case for solid or pattern-filled polygons * gsave N ... density PolyFill */ fprintf(gppsfile, "gsave "); fprintf(gppsfile, "%i %i N", corners[0].x, corners[0].y); for (i = 1; i < points; i++) { /* The rationale for mixing V and L is given in PS_vector */ if (i % MAX_REL_PATHLEN) fprintf(gppsfile, " %i %i V", corners[i].x-corners[i-1].x, corners[i].y-corners[i-1].y); else fprintf(gppsfile, " %i %i L", corners[i].x, corners[i].y); } switch(style & 0xf) { case FS_SOLID: filldens = (style >> 4) / 100.0; if(filldens < 0.0) filldens = 0.0; if(filldens >= 1.0) fprintf(gppsfile, " 1 PolyFill\n"); else fprintf(gppsfile, " %.2f PolyFill\n", filldens); break; case FS_PATTERN: pattern = (style >> 4) % 8; if (pattern == 0) { filldens = 0.5; fprintf(gppsfile, " %.1f PolyFill\n", filldens); } else { fprintf(gppsfile," Pattern%d fill grestore\n", pattern); } break; default: fputs(" 1 PolyFill\n", gppsfile); break; } } PS_relative_ok = FALSE; } #undef MAX_REL_PATHLEN TERM_PUBLIC void PS_previous_palette() { /* Needed to stroke the previous graphic element. */ PS_FLUSH_PATH; fputs("grestore % colour palette end\n", gppsfile); } /* * The reason for having a PostScript-specific wrapper for do_arrow * is that post.trm draws dotted lines for monochrome output, and * dotted arrowheads are ugly. So in that case we call do_arrow twice, * the second time to retrace the head with the line style forced to solid. */ TERM_PUBLIC void PS_arrow ( unsigned int sx, unsigned int sy, unsigned int ex, unsigned int ey, int head) { do_arrow( sx, sy, ex, ey, head ); if (!ps_params->solid && head != 0) { PS_FLUSH_PATH; fputs("gsave [] 0 setdash\n", gppsfile); do_arrow( sx, sy, ex, ey, -head ); PS_FLUSH_PATH; fputs("grestore\n", gppsfile); } } static void delete_ps_fontfile(struct ps_fontfile_def *prev, struct ps_fontfile_def *this) { if (this != NULL) { /* there really is something to delete */ FPRINTF((stderr, "Remove font/kerning file `%s'\n", this->fontfile_name)); if (prev != NULL) /* there is a previous ps_fontfile */ prev->next = this->next; else /* this = ps_params->first_fontfile */ /* so change ps_params->first_fontfile */ ps_params->first_fontfile = this->next; free(this->fontfile_name); free(this->fontfile_fullname); free(this); this = NULL; } } #ifdef WITH_IMAGE static void PS_encode85(unsigned long tuple4, unsigned char *tuple5) { /* The compiler should know to carry out the powers of * 85 computation at compilation time. */ tuple5[0] = tuple4/(85*85*85*85); tuple4 -= ((unsigned long)tuple5[0])*(85*85*85*85); tuple5[1] = tuple4/(85*85*85); tuple4 -= ((unsigned long)tuple5[1])*(85*85*85); tuple5[2] = tuple4/(85*85); tuple4 -= ((unsigned long)tuple5[2])*(85*85); tuple5[3] = tuple4/(85); tuple4 -= ((unsigned long)tuple5[3])*(85); tuple5[4] = tuple4; } enum PS_ENCODING { PS_ASCII_HEX, PS_ASCII85 } PS_ENCODING; /* Returns pointer to encoded image, allocated on heap that the * caller must free. Can error to command line so make sure all * heap memory is recorded in static pointers when calling this * routine. */ static char * PS_encode_image(unsigned M, unsigned N, coordval *image, t_imagecolor color_mode, int bits_per_component, int max_colors, double cscale, enum PS_ENCODING encoding, int *return_num_bytes) { unsigned coord_remaining; coordval *coord_ptr; unsigned short i_line; unsigned i_element; unsigned end_of_line; unsigned short bits_remaining, bits_start; unsigned long tuple4; unsigned char tuple5[5]; int max_encoded_bytes; char *encoded_image, *encoded_image_ptr; unsigned long total_bits; #define ASCII_PER_LINE 78 /* 18.1.2009 RGB images ("plot ... with rgbimage") are drawn always in color, * i.e. for both "set term post color" and "set term post mono". */ total_bits = bits_per_component*M*N*((color_mode == IC_RGB /* && ps_params->color */) ? 3 : 1); /* At the end of each image line, data is aligned to the nearest 8 bits, * which means potentially adding 7 bits per line. */ end_of_line = M; total_bits += N*7; /* Compute max number of ascii characters encoding will require. */ if (encoding == PS_ASCII_HEX) { /* Straight hex encoding */ max_encoded_bytes = (total_bits/4 + 1); max_encoded_bytes += max_encoded_bytes / ASCII_PER_LINE; /* newline characters */ } else { /* ASCII85 encoding */ max_encoded_bytes = (total_bits/32 + 1)*5 + 2; /* 5 tuples and additional ~> */ max_encoded_bytes += max_encoded_bytes / ASCII_PER_LINE; /* newline characters */ } /* Reserve enough memory. */ if (!(encoded_image = gp_alloc(max_encoded_bytes, "encoded image"))) int_error(NO_CARET, "GNUPLOT (post.trm): Error allocating memory.\n"); encoded_image_ptr = encoded_image; coord_ptr = image; i_line = ASCII_PER_LINE; i_element = 0; coord_remaining = M*N; if (color_mode == IC_RGB /* && ps_params->color */) { end_of_line *= 3; coord_remaining *= 3; } bits_remaining = 32; bits_start = 0; tuple4 = 0; while (coord_remaining) { unsigned short us_tmp; if (0 /* color_mode == IC_RGB && !ps_params->color */) { coordval c_tmp; c_tmp = *coord_ptr++; c_tmp += *coord_ptr++; c_tmp += *coord_ptr++; us_tmp = (unsigned short) (c_tmp*(max_colors-1)/3.0 + 0.5); } else us_tmp = (unsigned short) ((*coord_ptr++) * max_colors); if (us_tmp > (max_colors-1)) us_tmp = max_colors-1; /* Rescale to accommodate a mismatch between max_colors and # of bits */ us_tmp *= cscale; if (bits_remaining < bits_per_component) { tuple4 <<= bits_remaining; bits_start = bits_per_component - bits_remaining; bits_remaining = 0; tuple4 |= (us_tmp >> bits_start); } else { tuple4 <<= bits_per_component; tuple4 |= us_tmp; bits_remaining -= bits_per_component; } /* If this is last pixel in line, pad to nearest 8 bits. */ i_element++; if (i_element == end_of_line) { register unsigned short bit_align = (bits_remaining & 0x7); tuple4 <<= bit_align; bits_remaining -= bit_align; i_element = 0; } /* Check if another 4-tuple is complete. */ if (!bits_remaining) { if (ps_params->level1) { /* A straight hex encoding for every 4 bits. */ unsigned char tuple8[8]; int i; for (i=7; i >= 0; i--) { tuple8[i] = tuple4 & 0xf; tuple4 >>= 4; } for (i=0; i < 8; i++) { sprintf(encoded_image_ptr++, "%1x", tuple8[i]); i_line--; if (!i_line) {i_line = ASCII_PER_LINE; *encoded_image_ptr++ = '\n';} } } else { /* Convert to ASCII85 representation. */ if (tuple4) { int i; PS_encode85(tuple4, tuple5); tuple4 = 0; for (i=0; i < 5; i++) { sprintf(encoded_image_ptr++, "%c", tuple5[i]+'!'); i_line--; if (!i_line) {i_line = ASCII_PER_LINE; *encoded_image_ptr++ = '\n';} } } else { *encoded_image_ptr++ = 'z'; i_line--; if (!i_line) {i_line = ASCII_PER_LINE; *encoded_image_ptr++ = '\n';} } } /* Now pick up any bits that may have not made it into the 4-tuple. */ if (bits_start) {tuple4 = us_tmp - ((us_tmp>>bits_start)<level1) { /* A straight hex encoding for every 4 bits. */ unsigned char tuple8[8]; for (i=2*n-1; i >= 0; i--) { tuple8[i] = tuple4 & 0xf; tuple4 >>= 4; } for (i=0; i < 2*n; i++) { sprintf(encoded_image_ptr++, "%1x", tuple8[i]); i_line--; if (!i_line) {i_line = ASCII_PER_LINE; *encoded_image_ptr++ = '\n';} } } else { /* Convert to ASCII85 representation. * * The case where not all bytes in a tuple are used is slightly different. * There is no use of 'z' as a special character and the remaining bytes * need to be filled. Then use only a portion of the final 5-tuple. */ tuple4 <<= bits_remaining; PS_encode85(tuple4, tuple5); /* Write first n+1 bytes. */ for (i=0; i <= n; i++) { sprintf(encoded_image_ptr++, "%c", tuple5[i]+'!'); i_line--; if (!i_line) {i_line = ASCII_PER_LINE; *encoded_image_ptr++ = '\n';} } } } if (!ps_params->level1) { sprintf(encoded_image_ptr, "~>"); encoded_image_ptr += 2; } *return_num_bytes = (encoded_image_ptr - encoded_image); assert(*return_num_bytes <= max_encoded_bytes); return encoded_image; } static void print_five_operand_image(unsigned M, unsigned N, gpiPoint *corner, t_imagecolor color_mode, unsigned short bits_per_component) { char *space = ps_params->level1 ? "" : " "; fprintf(gppsfile, "%sgsave\n", space); if (sm_palette.colorMode == SMPAL_COLOR_MODE_GRAY) fprintf(gppsfile, "%s{pm3dGamma exp} settransfer\n", space); fprintf(gppsfile, "%s%d %d translate\n", space, corner[0].x, corner[0].y); fprintf(gppsfile, "%s%d %d scale\n", space, (corner[1].x - corner[0].x), (corner[1].y - corner[0].y)); fprintf(gppsfile, "%s%d %d %d\n", space, M, N, bits_per_component); fprintf(gppsfile, "%s[ %d 0 0 %d 0 0 ]\n", space, M, N); if (ps_params->level1) { fprintf(gppsfile, "/imagebuf %d string def\n", (M*N*bits_per_component*((color_mode == IC_RGB /* && ps_params->color */) ? 3 : 1) + 7)/8); fputs("{currentfile imagebuf readhexstring pop}\n", gppsfile); } else fprintf(gppsfile, " currentfile /ASCII85Decode filter\n"); if (color_mode == IC_RGB /* && ps_params->color */) { fprintf(gppsfile, "%sfalse 3\n" "%scolorimage\n", space, space); } else fprintf(gppsfile, "%simage\n", space); } TERM_PUBLIC void PS_image (unsigned M, unsigned N, coordval *image, gpiPoint *corner, t_imagecolor color_mode) { char *encoded_image; int num_encoded_bytes; unsigned short bits_per_component = 0; int max_colors, i_tmp; TBOOLEAN five_operand_image; double cscale; #define DEFAULT_BITS_PER_COMPONENT 8 #define DEFAULT_COMPONENT_MAX (1< 0) max_colors = sm_palette.use_maxcolors; else max_colors = DEFAULT_COMPONENT_MAX; i_tmp = 1; while (i_tmp < max_colors) { bits_per_component++; i_tmp <<= 1; } if (bits_per_component < 1 || bits_per_component > 12) { fprintf(stderr, "GNUPLOT (post.trm): Component bits (%d) out of range.\n", bits_per_component); return; } if (bits_per_component > 8) bits_per_component = 12; else if (bits_per_component > 4) bits_per_component = 8; else if (bits_per_component > 2) bits_per_component = 4; /* Color and gray scale images do not need a palette and can use * the 5 operand form of the image routine. */ #if 0 /* 18.1.2009 It was decided to use the custom palette (i.e. colours) also for the monochrome postscript output. */ if ((color_mode == IC_RGB) || (sm_palette.colorMode == SMPAL_COLOR_MODE_GRAY) || !ps_params->color) #else if ((color_mode == IC_RGB) || (sm_palette.colorMode == SMPAL_COLOR_MODE_RGB && !ps_params->color) || (sm_palette.colorMode == SMPAL_COLOR_MODE_GRAY)) #endif five_operand_image = TRUE; else five_operand_image = FALSE; /* The five operand image doesn't have a palette and the values are * such that 0 maps to 0.0 and 2^bits_per_component - 1 maps to 1.0 * in the PostScript driver. Without any other knowledge, we scale * things so that our max colors corresponds to 1.0. */ if (five_operand_image) cscale = (float)((1 << bits_per_component)-1) / (float)(max_colors-1); else cscale = 1.0; encoded_image = PS_encode_image(M, N, image, color_mode, bits_per_component, max_colors, cscale, (ps_params->level1 ? PS_ASCII_HEX : PS_ASCII85), &num_encoded_bytes); fputs("%%%%BeginImage\n", gppsfile); /* Clip image to requested bounding box */ fprintf(gppsfile,"gsave %d %d N %d %d L %d %d L %d %d L Z clip\n", corner[2].x, corner[2].y, corner[2].x, corner[3].y, corner[3].x, corner[3].y, corner[3].x, corner[2].y); /* Color and gray scale images do not need a palette and can use * the 5 operand form of the image routine. For other types of * palettes, the 1 operand form of the image routine must be used * and an indexed palette needs to be constructed. */ if (five_operand_image) { if (ps_params->level1) { print_five_operand_image(M, N, corner, color_mode, bits_per_component); } else { fputs("InterpretLevel1 {\n" " %% Construct a box instead of image\n" " LTb\n", gppsfile); fprintf(gppsfile, " %d %d M\n", corner[0].x, corner[0].y); fprintf(gppsfile, " %d 0 V\n", (corner[1].x - corner[0].x)); fprintf(gppsfile, " 0 %d V\n", (corner[1].y - corner[0].y)); fprintf(gppsfile, " %d 0 V\n", -(corner[1].x - corner[0].x)); fprintf(gppsfile, " %d %d L\n", corner[0].x, corner[0].y); fputs(" 40 -110 R\n" " (PS level 2 image) Lshow\n" " % Read data but ignore it\n", gppsfile); fprintf(gppsfile, " /imagebuf %d string def\n", num_encoded_bytes); fputs(" currentfile imagebuf readstring\n" "} {\n", gppsfile); print_five_operand_image(M, N, corner, color_mode, bits_per_component); fputs("} ifelse\n", gppsfile); } } else { int allocated; unsigned short i_tuple; double fact = 1.0 / (double)(max_colors-1); if (!ps_params->level1) { fputs("InterpretLevel1 {\n" " %% Construct a box instead of image\n" " LTb\n", gppsfile); fprintf(gppsfile, " %d %d M\n", corner[0].x, corner[0].y); fprintf(gppsfile, " %d 0 V\n", (corner[1].x - corner[0].x)); fprintf(gppsfile, " 0 %d V\n", (corner[1].y - corner[0].y)); fprintf(gppsfile, " %d 0 V\n", -(corner[1].x - corner[0].x)); fprintf(gppsfile, " %d %d L\n", corner[0].x, corner[0].y); fprintf(gppsfile, " 40 -110 R\n" " (PS level 2 image) Lshow\n" " %% Read data but ignore it\n" " /imagebuf %d string def\n" " currentfile imagebuf readstring\n", num_encoded_bytes); fputs("} {\n", gppsfile); } fputs("gsave\n", gppsfile); fprintf(gppsfile, "%d %d translate\n", corner[0].x, corner[0].y); fprintf(gppsfile, "%d %d scale\n", (corner[1].x - corner[0].x), (corner[1].y - corner[0].y)); fputs("%%%%BeginPalette\n", gppsfile); fprintf(gppsfile, "[ /Indexed\n /DeviceRGB %d\n <", (max_colors-1)); #define TUPLES_PER_LINE 8 for (allocated = 0, i_tuple = 0; allocated < max_colors; allocated++, i_tuple--) { double gray = (double) allocated * fact; rgb255_color color; rgb255maxcolors_from_gray( gray, &color ); if (!i_tuple) { fprintf(gppsfile,"\n "); i_tuple = TUPLES_PER_LINE; } fprintf(gppsfile," %2.2x%2.2x%2.2x", (int)color.r, (int)color.g, (int)color.b); } fputs("\n >\n] setcolorspace\n", gppsfile); fputs("%%%%EndPalette\n", gppsfile); fprintf(gppsfile, "<<\n /ImageType 1\n /Width %d\n /Height %d\n", M, N); fprintf(gppsfile, " /BitsPerComponent %d\n /ImageMatrix [ %d 0 0 %d 0 0 ]\n", bits_per_component, M, N); fprintf(gppsfile, " /Decode [ 0 %d ]\n", ((1<level1) { fprintf(gppsfile, " /imagebuf %d string def\n", (M*N*bits_per_component + 7)/8); fputs(" /DataSource {currentfile imagebuf readhexstring pop}\n", gppsfile); } else { fputs(" /DataSource currentfile /ASCII85Decode filter\n", gppsfile); } fputs(" /MultipleDataSources false\n", gppsfile); fputs(" /Interpolate false\n" ">>\n" "image\n", gppsfile); if (!ps_params->level1) fputs("} ifelse\n", gppsfile); } /* Send encoded image to file. */ { char *encoded_image_ptr; for (i_tmp=0, encoded_image_ptr = encoded_image; i_tmp < num_encoded_bytes; i_tmp++) fputc(*encoded_image_ptr++, gppsfile); } if (ps_params->level1) fputs("\ngrestore\n", gppsfile); else fputs("\nInterpretLevel1 not {\n" " grestore\n" "} if\n", gppsfile); fputs("grestore\n", gppsfile); fputs("%%%%EndImage\n", gppsfile); free(encoded_image); return; } #endif /* WITH_IMAGE */ /* First look for the GNUPLOT_PS_DIR environment variable * If unsuccessful, look for hardcoded absolute path on UNIX, * or hardcoded relative path on Windows and OS2, * or files included at compile time. */ static void PS_dump_prologue_file(char *name) { char *fullname; char *ps_prologue_dir; FILE *prologue_fd; char buf[256]; if ((ps_prologue_dir = getenv("GNUPLOT_PS_DIR")) == NULL) { #ifdef GNUPLOT_PS_DIR # if defined(_Windows) /* retrieve prologues path relatively to gnuplot executable, * whose path is in szModuleName (winmain.c) */ ps_prologue_dir = gp_alloc(strlen((char*) szModuleName) + strlen(GNUPLOT_PS_DIR) + 2, "Prolog path"); strcpy(ps_prologue_dir, (char*) szModuleName); strcat(ps_prologue_dir, "\\"); /* GNUPLOT_PS_DIR is _relative_ path */ strcat(ps_prologue_dir, GNUPLOT_PS_DIR); # elif defined(OS2) const ULONG bufsiz = 1024; CHAR exepath[bufsiz]; PPIB ppib; ULONG rc; rc = DosGetInfoBlocks(NULL, &ppib); if (!rc) rc = DosQueryModuleName(ppib->pib_hmte, bufsiz, (PCHAR) &exepath); if (!rc) { char *p = strrchr(exepath, '\\'); *(++p) = '\0'; ps_prologue_dir = gp_alloc(strlen(exepath) + strlen(GNUPLOT_PS_DIR) + 2, "Prolog path"); strcpy(ps_prologue_dir, exepath); strcat(ps_prologue_dir, "\\"); /* GNUPLOT_PS_DIR is _relative_ path */ strcat(ps_prologue_dir, GNUPLOT_PS_DIR); } else { ps_prologue_dir = gp_alloc(1, "Prolog path"); /* unsucessful to retrieve executable path */ strcpy(ps_prologue_dir,""); } # else /* !_Windows && !OS2 */ /* use hardcoded _absolute_ path */ ps_prologue_dir = GNUPLOT_PS_DIR; # endif #else /* using headers included at compile time */ const char **dump = NULL; int i; /* load from included header */ if (!strcmp(name,"8859-15.ps")) dump = prologue_8859_15_ps; else if (!strcmp(name,"8859-1.ps")) dump = prologue_8859_1_ps; else if (!strcmp(name,"8859-2.ps")) dump = prologue_8859_2_ps; else if (!strcmp(name,"cp1250.ps")) dump = prologue_cp1250_ps; else if (!strcmp(name,"cp437.ps")) dump = prologue_cp437_ps; else if (!strcmp(name,"cp850.ps")) dump = prologue_cp850_ps; else if (!strcmp(name,"cp852.ps")) dump = prologue_cp852_ps; else if (!strcmp(name,"koi8r.ps")) dump = prologue_koi8r_ps; else if (!strcmp(name,"koi8u.ps")) dump = prologue_koi8u_ps; else if (!strcmp(name,"prologue.ps")) dump = prologue_prologue_ps; else int_error(NO_CARET,"Requested Postscript prologue is not included"); if (dump) { for (i = 0; dump[i] != NULL; ++i) fprintf(gppsfile, "%s", dump[i]); } return; #endif /* GNUPLOT_PS_DIR */ } fullname = gp_alloc(strlen(ps_prologue_dir) + strlen(name) + 4,"Prolog name"); strcpy(fullname,ps_prologue_dir); #if defined(_Windows) || defined(OS2) if (fullname[strlen(fullname)-1] != '\\') strcat(fullname,"\\"); #elif !defined(VMS) if (fullname[strlen(fullname)-1] != '/') strcat(fullname,"/"); #endif strcat(fullname,name); prologue_fd = fopen(fullname,"r"); #if defined(_Windows) || defined(OS2) if (getenv("GNUPLOT_PS_DIR") == NULL) free(ps_prologue_dir); #endif if (!prologue_fd) prologue_fd = loadpath_fopen(name,"r"); if (!prologue_fd) { fprintf(stderr,"Can't find PostScript prologue file %s\n", fullname); loadpath_handler(ACTION_SHOW,NULL); free(fullname); fprintf(stderr,"Please copy %s to one of the above directories\n",name); fprintf(stderr,"or set the loadpath appropriately\n"); fprintf(stderr,"or set the environmental variable GNUPLOT_PS_DIR\n"); int_error(NO_CARET,"Plot failed!"); } free(fullname); while (fgets(buf, sizeof(buf), prologue_fd)) fputs(buf, gppsfile); fclose(prologue_fd); } TERM_PUBLIC void PS_path(int p) { switch (p) { case 0: /* Start new path */ PS_FLUSH_PATH; PS_newpath = TRUE; break; case 1: /* Close path */ fprintf(gppsfile, "Z "); PS_FLUSH_PATH; break; } } #endif /* TERM_BODY */ #ifdef TERM_TABLE TERM_TABLE_START(post_driver) "postscript", "PostScript graphics, including EPSF embedded files (*.eps)", PS_XMAX, PS_YMAX, PS_VCHAR, PS_HCHAR, PS_VTIC, PS_HTIC, PS_options, PS_init, PS_reset, PS_text, null_scale, PS_graphics, PS_move, PS_vector, PS_linetype, PS_put_text, PS_text_angle, PS_justify_text, PS_point, PS_arrow, PS_set_font, PS_pointsize, TERM_BINARY|TERM_IS_POSTSCRIPT|TERM_CAN_CLIP /*flags*/, 0 /*suspend*/, 0 /*resume*/, PS_fillbox, PS_linewidth #ifdef USE_MOUSE , 0, 0, 0, 0, 0 /* no mouse support for postscript */ #endif , PS_make_palette, PS_previous_palette, /* write grestore */ PS_set_color, PS_filled_polygon #ifdef WITH_IMAGE , PS_image #endif , ENHPS_OPEN, ENHPS_FLUSH, ENHPS_WRITEC , 0 /* layer control */ , PS_path TERM_TABLE_END(post_driver) #undef LAST_TERM #define LAST_TERM post_driver #endif /* TERM_TABLE */ #endif /* TERM_PROTO_ONLY */ #ifdef TERM_HELP /* This is a pseudo help section that is labeled with 00psglobal to be * sure that it is sorted in before `post', `epslatex', and `pslatex'. * This section just defines commonly used text snippets for all three * help sections defined in this file. Defining PS_COMMON_OPTS1, * PS_COMMON_OPTS2, and PS_COMMON_DOC1 outside START_HELP()...END_HELP() * does not work. * The last line before the END_HELP(00psglobal) contains one single line * of "text" that is necessary to avoid errors. */ START_HELP(00psglobal) #define PS_COMMON_OPTS1 \ " {level1 | leveldefault}",\ " {color | colour | monochrome}",\ " {solid | dashed}",\ " {dashlength | dl
}",\ " {linewidth | lw }",\ " {rounded | butt}",\ " {palfuncparam {,}}",\ " {size {unit},{unit}}", #define PS_COMMON_OPTS2 \ " {blacktext | colortext | colourtext}",\ " {{font} \"fontname{,fontsize}\" {}}", #define PS_COMMON_PROLOG_INFO \ " If you see the error message",\ " \"Can't find PostScript prologue file ... \"",\ " Please see and follow the instructions in `postscript prologue`.",\ "", #define PS_COMMON_DOC1 \ " The option `color` enables color, while `monochrome` prefers black and white",\ " drawing elements. Further, `monochrome` uses gray `palette` but it does not",\ " change color of objects specified with an explicit `colorspec`."\ "",\ " `solid` draws all plots with solid lines, overriding any dashed patterns.",\ " `dashlength` or `dl` scales the length of the dashed-line segments by
,",\ " which is a floating-point number greater than zero.",\ " `linewidth` or `lw` scales all linewidths by .",\ "",\ " By default the generated PostScript code uses language features that were",\ " introduced in PostScript Level 2, notably filters and pattern-fill of",\ " irregular objects such as filledcurves. PostScript Level 2 features are",\ " conditionally protected so that PostScript Level 1 interpreters do not issue",\ " errors but, rather, display a message or a PostScript Level 1 approximation.",\ " The `level1` option substitutes PostScript Level 1 approximations of these",\ " features and uses no PostScript Level 2 code. This may be required by some",\ " old printers and old versions of Adobe Illustrator. The flag `level1` can be", \ " toggled later by editing a single line in the PostScript output file to force",\ " PostScript Level 1 interpretation. In the case of files containing level 2",\ " code, the above features will not appear or will be replaced by a note when",\ " this flag is set or when the interpreting program does not indicate that it",\ " understands level 2 PostScript or higher.",\ "",\ " `rounded` sets line caps and line joins to be rounded; `butt` is the",\ " default, butt caps and mitered joins;",\ "",\ " `palfuncparam` controls how `set palette functions` are encoded as gradients",\ " in the output. Analytic color component functions (set via",\ " `set palette functions`) are encoded as linear interpolated gradients in the",\ " postscript output: The color component functions are sampled at ",\ " points and all points are removed from this gradient which can be removed",\ " without changing the resulting colors by more than . For",\ " almost every useful palette you may savely leave the defaults of",\ " =2000 and =0.003 untouched.",\ "",\ " The default size for postscript output is 10 inches x 7 inches. The default",\ " for eps output is 5 x 3.5 inches. The `size` option changes this to",\ " whatever the user requests. By default the X and Y sizes are taken to be in",\ " inches, but other units are possibly (currently only cm). The BoundingBox",\ " of the plot is correctly adjusted to contain the resized image.",\ " Screen coordinates always run from 0.0 to 1.0 along the full length of the",\ " plot edges as specified by the `size` option.",\ " NB: `this is a change from the previously recommended method of using the",\ " set size command prior to setting the terminal type`. The old method left",\ " the BoundingBox unchanged and screen coordinates did not correspond to the",\ " actual limits of the plot.",\ "", "" END_HELP(00psglobal) START_HELP(epslatex) "1 epslatex", "?commands set terminal epslatex", "?set terminal epslatex", "?set term epslatex", "?terminal epslatex", "?term epslatex", "?epslatex", " The `epslatex` driver generates output for further processing by LaTeX.", "", " Syntax:", " set terminal epslatex {default}", " set terminal epslatex {standalone | input}", " {oldstyle | newstyle}", PS_COMMON_OPTS1 " {header
| noheader}", PS_COMMON_OPTS2 "", " The epslatex terminal prints a plot as `terminal postscript eps`", " but transfers the texts to LaTeX instead of including in the PostScript", " code. Thus, many options are the same as in the `postscript terminal`.", "", " From version 4.0 to 4.2, some changes have been invoked into the default ", " appearance of the epslatex terminal to reach better consistency with the", " postscript terminal: The plot size has been changed from 5 x 3 inches to", " 5 x 3.5 inches; the character width is now estimated to be 60% of the font", " size while the old epslatex terminal used 50%; now, the larger number of", " postscript linetypes and symbols are used. To reach an appearance that is", " nearly identical to the old one specify the option `oldstyle`. (In fact", " some small differences remain: the symbol sizes are slightly different, the", " tics are half as large as in the old terminal which can be changed using", " `set tics scale`, and the arrows have all features as in the postscript", " terminal.)", "", PS_COMMON_PROLOG_INFO PS_COMMON_DOC1 " `blacktext` forces all text to be written in black even in color mode;", "", " The epslatex driver offers a special way of controlling text positioning:", " (a) If any text string begins with '{', you also need to include a '}' at the", " end of the text, and the whole text will be centered both horizontally", " and vertically by LaTeX. (b) If the text string begins with '[', you need", " to continue it with: a position specification (up to two out of t,b,l,r,c),", " ']{', the text itself, and finally, '}'. The text itself may be anything", " LaTeX can typeset as an LR-box. \\rule{}{}'s may help for best positioning.", " See also the documentation for the `pslatex` terminal driver.", " To create multiline labels, use \\shortstack, for example", " set ylabel '[r]{\\shortstack{first line \\\\ second line}}' ", "", " The `back` option of `set label` commands is handled slightly different", " than in other terminals. Labels using 'back' are printed behind all other", " elements of the plot while labels using 'front' are printed above ", " everything else.", "", " The driver produces two different files, one for the eps part of the figure", " and one for the LaTeX part. The name of the LaTeX file is taken from the", " `set output` command. The name of the eps file is derived by replacing", " the file extension (normally `.tex`) with `.eps` instead. There is no", " LaTeX output if no output file is given! Remember to close the", " `output file` before next plot unless in `multiplot` mode.", "", " In your LaTeX documents use '\\input{filename}' to include the figure.", " The `.eps` file is included by the command \\includegraphics{...}, so you", " must also include \\usepackage{graphicx} in the LaTeX preamble. If you", " want to use coloured text (option `textcolour`) you also have to include", " \\usepackage{color} in the LaTeX preamble.", "", " Pdf files can be made from the eps file using 'epstopdf'. If the graphics", " package is properly configured, the LaTeX files can also be processed by", " pdflatex without changes, using the pdf files instead of the eps files." "", " The behaviour concerning font selection depends on the header mode.", " In all cases, the given font size is used for the calculation of proper", " spacing. When not using the `standalone` mode the actual LaTeX font and", " font size at the point of inclusion is taken, so use LaTeX commands for", " changing fonts. If you use e.g. 12pt as font size for your LaTeX", " document, use '\"\" 12' as options. The font name is ignored. If using", " `standalone` the given font and font size are used, see below for a", " detailed description.", "", " If text is printed coloured is controlled by the TeX booleans \\ifGPcolor", " and \\ifGPblacktext. Only if \\ifGPcolor is true and \\ifGPblacktext is", " false, text is printed coloured. You may either change them in the", " generated TeX file or provide them globally in your TeX file, for example", " by using", " \\newif\\ifGPblacktext", " \\GPblacktexttrue", " in the preamble of your document. The local assignment is only done if no", " global value is given.", "", " When using the epslatex terminal give the name of the TeX file in the", " `set output` command including the file extension (normally \".tex\").", " The eps filename is generated by replacing the extension by \".eps\".", "", " If using the `standalone` mode a complete LaTeX header is added to the", " LaTeX file; and \"-inc\" is added to the filename of the eps file.", " The `standalone` mode generates a TeX file that produces", " output with the correct size when using dvips, pdfTeX, or VTeX.", " The default, `input`, generates a file that has to be included into a", " LaTeX document using the \\input command.", "", " If a font other than \"\" or \"default\" is given it is interpreted as", " LaTeX font name. It contains up to three parts, separated by a comma:", " 'fontname,fontseries,fontshape'. If the default fontshape or fontseries", " are requested, they can be omitted. Thus, the real syntax for the fontname", " is '[fontname][,fontseries][,fontshape]'. The naming convention for all", " parts is given by the LaTeX font scheme. The fontname is 3 to 4 characters", " long and is built as follows: One character for the font vendor, two", " characters for the name of the font, and optionally one additional", " character for special fonts, e.g., 'j' for fonts with old-style numerals", " or 'x' for expert fonts. The names of many fonts is described in", "^ ", " http://www.tug.org/fontname/fontname.pdf", "^ ", " For example, 'cmr' stands for Computer Modern Roman, 'ptm' for Times-Roman,", " and 'phv' for Helvetica. The font series denotes the thickness of the", " glyphs, in most cases 'm' for normal (\"medium\") and 'bx' or 'b' for bold", " fonts. The font shape is 'n' for upright, 'it' for italics, 'sl' for", " slanted, or 'sc' for small caps, in general. Some fonts may provide", " different font series or shapes.", "", " Examples:", "", " Use Times-Roman boldface (with the same shape as in the surrounding text):", " set terminal epslatex 'ptm,bx'", " Use Helvetica, boldface, italics:", " set terminal epslatex 'phv,bx,it'", " Continue to use the surrounding font in slanted shape:", " set terminal epslatex ',,sl'", " Use small capitals:", " set terminal epslatex ',,sc'", "", " By this method, only text fonts are changed. If you also want to change", " the math fonts you have to use the \"gnuplot.cfg\" file or the `header`", " option, described below.", "", " In standalone mode, the font size is taken from the given font size in the", " `set terminal` command. To be able to use a specified font size, a file", " \"size.clo\" has to reside in the LaTeX search path. By default,", " 10pt, 11pt, and 12pt are supported. If the package \"extsizes\" is", " installed, 8pt, 9pt, 14pt, 17pt, and 20pt are added.", "", " The `header` option takes a string as argument. This string is written", " into the generated LaTeX file. If using the `standalone` mode, it is ", " written into the preamble, directly before the \\begin{document} command.", " In the `input` mode, it is placed directly after the \\begingroup command", " to ensure that all settings are local to the plot.", "", " Examples:", "", " Use T1 fontencoding, change the text and math font to Times-Roman as well", " as the sans-serif font to Helvetica:", " set terminal epslatex standalone header \\", " \"\\\\usepackage[T1]{fontenc}\\n\\\\usepackage{mathptmx}\\n\\\\usepackage{helvet}\"", " Use a boldface font in the plot, not influencing the text outside the plot:", " set terminal epslatex input header \"\\\\bfseries\"", "", " If the file \"gnuplot.cfg\" is found by LaTeX it is input in the preamble", " the LaTeX document, when using `standalone` mode. It can be used for", " further settings, e.g., changing the document font to Times-Roman,", " Helvetica, and Courier, including math fonts (handled by \"mathptmx.sty\"):", " \\usepackage{mathptmx}", " \\usepackage[scaled=0.92]{helvet}", " \\usepackage{courier}", " The file \"gnuplot.cfg\" is loaded before the header information given", " by the `header` command. Thus, you can use `header` to overwrite some of", " settings performed using \"gnuplot.cfg\"", "" END_HELP(epslatex) START_HELP(pslatex) "1 pslatex and pstex", "?commands set terminal pslatex", "?set terminal pslatex", "?set term pslatex", "?terminal pslatex", "?term pslatex", "?pslatex", "?commands set terminal pstex", "?set terminal pstex", "?set term pstex", "?terminal pstex", "?term pstex", "?pstex", " The `pslatex` driver generates output for further processing by LaTeX,", " while the `pstex` driver generates output for further processing by", " TeX. `pslatex` uses \\specials understandable by dvips and xdvi. Figures", " generated by `pstex` can be included in any plain-based format (including", " LaTeX).", "", " Syntax:", " set terminal [pslatex | pstex] {default}", " set terminal [pslatex | pstex]", " {rotate | norotate}", " {oldstyle | newstyle}", " {auxfile | noauxfile}", PS_COMMON_OPTS1 " {}", "", PS_COMMON_PROLOG_INFO PS_COMMON_DOC1 " if `rotate` is specified, the y-axis label is rotated.", " is the size (in pts) of the desired font.", "", " If `auxfile` is specified, it directs the driver to put the PostScript", " commands into an auxiliary file instead of directly into the LaTeX file.", " This is useful if your pictures are large enough that dvips cannot handle", " them. The name of the auxiliary PostScript file is derived from the name of", " the TeX file given on the `set output` command; it is determined by replacing", " the trailing `.tex` (actually just the final extent in the file name) with", " `.ps` in the output file name, or, if the TeX file has no extension, `.ps`", " is appended. The `.ps` is included into the `.tex` file by a", " \\special{psfile=...} command. Remember to close the `output file` before", " next plot unless in `multiplot` mode.", "", " Gnuplot versions prior version 4.2 have generated plots of the size", " 5 x 3 inches using the ps(la)tex terminal while the current version generates", " 5 x 3.5 inches to be consistent with the postscript eps terminal. In", " addition, the character width is now estimated to be 60% of the font size", " while the old epslatex terminal used 50%. To reach the old format specify", " the option `oldstyle`.", "", " The pslatex driver offers a special way of controlling text positioning: ", " (a) If any text string begins with '{', you also need to include a '}' at the", " end of the text, and the whole text will be centered both horizontally", " and vertically by LaTeX. (b) If the text string begins with '[', you need", " to continue it with: a position specification (up to two out of t,b,l,r),", " ']{', the text itself, and finally, '}'. The text itself may be anything", " LaTeX can typeset as an LR-box. \\rule{}{}'s may help for best positioning.", "", " The options not described here are identical to the `Postscript terminal`.", " Look there if you want to know what they do.", "", " Examples:", " set term pslatex monochrome dashed rotate # set to defaults", " To write the PostScript commands into the file \"foo.ps\":", " set term pslatex auxfile", " set output \"foo.tex\"; plot ...; set output", " About label positioning:", " Use gnuplot defaults (mostly sensible, but sometimes not really best):", " set title '\\LaTeX\\ -- $ \\gamma $'", " Force centering both horizontally and vertically:", " set label '{\\LaTeX\\ -- $ \\gamma $}' at 0,0", " Specify own positioning (top here):", " set xlabel '[t]{\\LaTeX\\ -- $ \\gamma $}'", " The other label -- account for long ticlabels:", " set ylabel '[r]{\\LaTeX\\ -- $ \\gamma $\\rule{7mm}{0pt}}'", "", " Linewidths and pointsizes may be changed with `set style line`." "" END_HELP(pslatex) START_HELP(post) "1 postscript", "?commands set terminal postscript", "?set terminal postscript", "?set term postscript", "?terminal postscript", "?term postscript", "?postscript", " Several options may be set in the `postscript` driver.", "", " Syntax:", " set terminal postscript {default}", " set terminal postscript {landscape | portrait | eps}", " {enhanced | noenhanced}", " {defaultplex | simplex | duplex}", " {fontfile [add | delete] \"\"", " | nofontfiles}", PS_COMMON_OPTS1 PS_COMMON_OPTS2 PS_COMMON_PROLOG_INFO "", " `landscape` and `portrait` choose the plot orientation.", " `eps` mode generates EPS (Encapsulated PostScript) output, which is just", " regular PostScript with some additional lines that allow the file to be", " imported into a variety of other applications. (The added lines are", " PostScript comment lines, so the file may still be printed by itself.) To", " get EPS output, use the `eps` mode and make only one plot per file. In `eps`", " mode the whole plot, including the fonts, is reduced to half of the default", " size.", "", " `enhanced` enables enhanced text mode features (subscripts,", " superscripts and mixed fonts). See `enhanced` for more information.", " `blacktext` forces all text to be written in black even in color mode;", "", " Duplexing in PostScript is the ability of the printer to print on both", " sides of the same sheet of paper. With `defaultplex`, the default setting", " of the printer is used; with `simplex` only one side is printed; `duplex`", " prints on both sides (ignored if your printer can't do it).", "", " `\"\"` is the name of a valid PostScript font; and `` is", " the size of the font in PostScript points.", " In addition to the standard postscript fonts, an oblique version of the", " Symbol font, useful for mathematics, is defined. It is called", " \"Symbol-Oblique\".", "", " `default` sets all options to their defaults: `landscape`, `monochrome`,", " `dashed`, `dl 1.0`, `lw 1.0`, `defaultplex`, `noenhanced`, \"Helvetica\" and", " 14pt. Default size of a PostScript plot is 10 inches wide and 7 inches high.", PS_COMMON_DOC1 " Fonts listed by `fontfile` or `fontfile add` encapsulate the font", " definitions of the listed font from a postscript Type 1 or TrueType font", " file directly into the gnuplot output postscript file. Thus, the enclosed", " font can be used in labels, titles, etc. See the section", " `postscript fontfile` for more details. With `fontfile delete`, a fontfile", " is deleted from the list of embedded files. `nofontfiles` cleans the list", " of embedded fonts.", "", " Examples:", " set terminal postscript default # old postscript", " set terminal postscript enhanced # old enhpost", " set terminal postscript landscape 22 # old psbig", " set terminal postscript eps 14 # old epsf1", " set terminal postscript eps 22 # old epsf2", " set size 0.7,1.4; set term post portrait color \"Times-Roman\" 14", " set term post \"VAGRoundedBT_Regular\" 14 fontfile \"bvrr8a.pfa\"", "", " Linewidths and pointsizes may be changed with `set style line`.", "", " The `postscript` driver supports about 70 distinct pointtypes, selectable", " through the `pointtype` option on `plot` and `set style line`.", "", " Several possibly useful files about `gnuplot`'s PostScript are included", " in the /docs/psdoc subdirectory of the `gnuplot` distribution and at the", " distribution sites. These are \"ps_symbols.gpi\" (a `gnuplot` command file", " that, when executed, creates the file \"ps_symbols.ps\" which shows all the", " symbols available through the `postscript` terminal), \"ps_guide.ps\" (a", " PostScript file that contains a summary of the enhanced syntax and a page", " showing what the octal codes produce with text and symbol fonts),", " \"ps_file.doc\" (a text file that contains a discussion of the organization", " of a PostScript file written by `gnuplot`), and \"ps_fontfile_doc.tex\"", " (a LaTeX file which contains a short documentation concerning the", " encapsulation of LaTeX fonts with a glyph table of the math fonts).", "", " A PostScript file is editable, so once `gnuplot` has created one, you are", " free to modify it to your heart's desire. See the `editing postscript`", " section for some hints.", "2 enhanced postscript", "?commands set terminal postscript enhanced", "?set terminal postscript enhanced", "?set term postscript enhanced", "?terminal postscript enhanced", "?term postscript enhanced", "?enhanced_postscript", "?enhanced postscript", "?Enhanced postscript", "?enhanced text", "?Enhanced text", "?enhanced", " Several terminal types support an enhanced text mode in which ", " additional formatting information is embedded in the text string.", "", "@start table - first is interactive cleartext form", " Control Examples Explanation", " ^ a^x superscript", " _ a_x subscript", " @ @x or a@^b_c phantom box (occupies no width)", " & &{space} inserts space of specified length", " ~ ~a{.8-} overprints '-' on 'a', raised by .8", " times the current fontsize", "#\\begin{tabular}{|ccl|} \\hline", "#\\multicolumn{3}{|c|}{Enhanced Text Control Codes} \\\\ \\hline", "#Control & Examples & Explanation \\\\ \\hline", "#\\verb~^~ & \\verb~a^x~ & superscript\\\\", "#\\verb~_~ & \\verb~a_x~ & subscript\\\\", "#\\verb~@~ & \\verb~@x or a@^b_c~ & phantom box (occupies no width)\\\\", "#\\verb~&~ & \\verb~&{space}~ & inserts space of specified length\\\\", "#\\verb|~| & \\verb|~a{.8-}| & overprints '-' on 'a', raised by .8\\\\", "#\\verb~ ~ & \\verb~ ~ & times the current fontsize\\\\", "%c c l .", "%.TE", /* ugly - doc2ms uses @ for column separator, but here we */ "%.TS", /* need @ in table, so end and restart the table ! */ "%center box tab ($) ;", "%c c l .", "%Control$Examples$Explanation", "%_", "%^$a^x$superscript", "%\\&_$a\\&_x$subscript", "% @ $ @x or a\\&@^b\\&_c$phantom box (occupies no width)", "% & $ &{space}$inserts space of specified length", "% ~ $ ~a{.8-}$overprints '-' on 'a', raised by .8", "% $ $times the current fontsize", "@end table", "", " Braces can be used to place multiple-character text where a single character", " is expected (e.g., 2^{10}). To change the font and/or size, use the full", " form: {/[fontname][=fontsize | *fontscale] text}. Thus {/Symbol=20 G} is a", " 20-point GAMMA and {/*0.75 K} is a K at three-quarters of whatever fontsize", " is currently in effect. (The '/' character MUST be the first character after", " the '{'.)", "", " If the encoding vector has been changed by `set encoding`, the default", " encoding vector can be used instead by following the slash with a dash. This", " is unnecessary if you use the Symbol font, however---since /Symbol uses its", " own encoding vector, `gnuplot` will not apply any other encoding vector to", " it.", "", " The phantom box is useful for a@^b_c to align superscripts and subscripts", " but does not work well for overwriting an accent on a letter. (To do the", " latter, it is much better to use 'set encoding iso_8859_1' to change to the", " ISO Latin-1 encoding vector, which contains a large variety of letters with", " accents or other diacritical marks.) Since the box is non-spacing, it is", " sensible to put the shorter of the subscript or superscript in the box (that", " is, after the @).", "", " Space equal in length to a string can be inserted using the '&' character.", " Thus", " 'abc&{def}ghi'", " would produce", " 'abc ghi'.", "", " The '~' character causes the next character or bracketed text to be", " overprinted by the following character or bracketed text. The second text", " will be horizontally centered on the first. Thus '~a/' will result in an 'a'", " with a slash through it. You can also shift the second text vertically by", " preceding the second text with a number, which will define the fraction of the", " current fontsize by which the text will be raised or lowered. In this case", " the number and text must be enclosed in brackets because more than one", " character is necessary. If the overprinted text begins with a number, put a", " space between the vertical offset and the text ('~{abc}{.5 000}'); otherwise", " no space is needed ('~{abc}{.5---}'). You can change the font for one or", " both strings ('~a{.5 /*.2 o}'---an 'a' with a one-fifth-size 'o' on top---and", " the space between the number and the slash is necessary), but you can't", " change it after the beginning of the string. Neither can you use any other", " special syntax within either string. You can, of course, use control", " characters by escaping them (see below), such as '~a{\\^}'", "", " You can access special symbols numerically by specifying \\character-code (in", " octal), e.g., {/Symbol \\245} is the symbol for infinity.", "", " You can escape control characters using \\, e.g., \\\\, \\{, and so on.", "", " But be aware that strings in double-quotes are parsed differently than those", " enclosed in single-quotes. The major difference is that backslashes may need", " to be doubled when in double-quoted strings.", "", " Examples (these are hard to describe in words---try them!):", " set xlabel 'Time (10^6 {/Symbol m}s)'", " set title '{/Symbol=18 \\362@_{/=9.6 0}^{/=12 x}} \\", " {/Helvetica e^{-{/Symbol m}^2/2} d}{/Symbol m}'", "", " The file \"ps_guide.ps\" in the /docs/psdoc subdirectory of the `gnuplot` source", " distribution contains more examples of the enhanced syntax.", "2 editing postscript", "?commands set terminal postscript editing", "?set terminal postscript editing", "?set term postscript editing", "?terminal postscript editing", "?term postscript editing", "?editing_postscript", "?editing postscript", " The PostScript language is a very complex language---far too complex to", " describe in any detail in this document. Nevertheless there are some things", " in a PostScript file written by `gnuplot` that can be changed without risk of", " introducing fatal errors into the file.", "", " For example, the PostScript statement \"/Color true def\" (written into the", " file in response to the command `set terminal postscript color`), may be", " altered in an obvious way to generate a black-and-white version of a plot.", " Similarly line colors, text colors, line weights and symbol sizes can also be", " altered in straight-forward ways. Text (titles and labels) can be edited to", " correct misspellings or to change fonts. Anything can be repositioned, and", " of course anything can be added or deleted, but modifications such as these", " may require deeper knowledge of the PostScript language.", "", " The organization of a PostScript file written by `gnuplot` is discussed in", " the text file \"ps_file.doc\" in the docs/ps subdirectory of the gnuplot", " source distribution.", "2 postscript fontfile", "?commands set terminal postscript fontfile", "?set terminal postscript fontfile", "?set term postscript fontfile", "?terminal postscript fontfile", "?term postscript fontfile", "?postscript fontfile", "?fontfile", " The `fontfile` or `fontfile add` option takes one file name as argument", " and encapsulates this file into the postscript output in order to make", " this font available for text elements (labels, tic marks, titles, etc.).", " The `fontfile delete` option also takes one file name as argument. It", " deletes this file name from the list of encapsulated files.", "", " The postscript terminal understands some", " font file formats: Type 1 fonts in ASCII file format (extension \".pfa\"),", " Type 1 fonts in binary file format (extension \".pfb\"), and TrueType", " fonts (extension \".ttf\"). Pfa files are understood directly, pfb and ttf", " files are converted on the fly if appropriate conversion tools are", " installed (see below). You have to specify the full filename including the", " extension. Each `fontfile` option takes exact one font file name. This", " option can be used multiple times in order to include more than one font", " file.", "", " The font file is searched in the working directory and in all directories", " listed in the fontpath which is determined by `set fontpath`.", " In addition, the fontpath can be set using the environment variable", " GNUPLOT_FONTPATH. If this is not set a system dependent default search", " list is used. See `set fontpath` for more details.", "", " For using the encapsulated font file you have to specify the font name", " (which normally is not the same as the file name). When embedding a", " font file by using the `fontfile` option in interactive mode, the ", " font name is printed on the screen. E.g.", " Font file 'p052004l.pfb' contains the font 'URWPalladioL-Bold'. Location:", " /usr/lib/X11/fonts/URW/p052004l.pfb", "", " When using pfa or pfb fonts, you can also find it out by looking into the", " font file. There is a line similar to \"/FontName /URWPalladioL-Bold def\".", " The middle string without the slash is the fontname, here", " \"URWPalladioL-Bold\".", " For TrueType fonts, this is not so easy since the font name is stored in a", " binary format. In addition, they often have spaces in the font names which", " is not supported by Type 1 fonts (in which a TrueType is converted on the", " fly). The font names are changed in order to eliminate the spaces in the", " fontnames. The easiest way to find out which font name is generated for", " use with gnuplot, start gnuplot in interactive mode and type in", " \"set terminal postscript fontfile ''\".", "", " For converting font files (either ttf or pfb) to pfa format, the conversion", " tool has to read the font from a file and write it to standard output. If", " the output cannot be written to standard output, on-the-fly conversion is", " not possible.", "", " For pfb files \"pfbtops\" is a tool which can do this. If this program", " is installed on your system the on the fly conversion should work.", " Just try to encapsulate a pfb file. If the compiled in program call does", " not work correctly you can specify how this program is called by", " defining the environment variable GNUPLOT_PFBTOPFA e.g. to", " \"pfbtops %s\". The `%s` will be replaced by the font file name and thus", " has to exist in the string.", "", " If you don't want to do the conversion on the fly but get a pfa file of", " the font you can use the tool \"pfb2pfa\" which is written in simple c", " and should compile with any c compiler.", " It is available from many ftp servers, e.g.", "^ ", " ftp://ftp.dante.de/tex-archive/fonts/utilities/ps2mf/", "^ ", " In fact, \"pfbtopfa\" and \"pfb2ps\" do the same job. \"pfbtopfa\" puts", " the resulting pfa code into a file, whereas \"pfbtops\" writes it to", " standard output.", "", " TrueType fonts are converted into Type 1 pfa format, e.g.", " by using the tool \"ttf2pt1\" which is available from", "^ ", " http://ttf2pt1.sourceforge.net/", "^ ", " If the builtin conversion does not", " work, the conversion command can be changed by the environment variable", " GNUPLOT_TTFTOPFA. For usage with ttf2pt1 it may be set to", " \"ttf2pt1 -a -e -W 0 %s - \". Here again, `%s` stands for the", " file name.", "", " For special purposes you also can use a pipe (if available for your", " operating system). Therefore you start the file name definition with ", " the character \"<\" and append a program call. This program has ", " to write pfa data to standard output. Thus, a pfa file may be accessed", " by `set fontfile \"< cat garamond.pfa\"`.", "", " For example, including Type 1 font files can be used for including the", " postscript output in LaTeX documents. The \"european computer modern\"", " font (which is a variant of the \"computer modern\" font) is available", " in pfb format from any CTAN server, e.g.", "^ ", " ftp://ftp.dante.de/tex-archive/fonts/ps-type1/cm-super/", "^ ", " For example, the file \"sfrm1000.pfb\" contains the normal upright fonts", " with serifs in the design size 10pt (font name \"SFRM1000\").", " The computer modern fonts, which are still necessary for mathematics,", " are available from", "^ ", " ftp://ftp.dante.de/tex-archive/fonts/cm/ps-type1/bluesky", "^ ", " With these you can use any character available in TeX. However, the", " computer modern fonts have a strange encoding. (This is why you should not", " use cmr10.pfb for text, but sfrm1000.pfb instead.)", " The usage of TeX fonts is shown in one of the demos.", " The file \"ps_fontfile_doc.tex\" in the /docs/psdoc subdirectory of the", " `gnuplot` source distribution contains a table with glyphs of the TeX", " mathfonts.", "", " If the font \"CMEX10\" is embedded (file \"cmex10.pfb\") gnuplot defines", " the additional font \"CMEX10-Baseline\". It is shifted vertically in order", " to fit better to the other glyphs (CMEX10 has its baseline at the top of", " the symbols).", "2 postscript prologue", "?commands set terminal postscript prologue", "?set terminal postscript prologue", "?terminal postscript prologue", "?postscript prologue", "?prologue", " Each PostScript output file includes a %%Prolog section and possibly some", " additional user-defined sections containing, for example, character", " encodings. These sections are copied from a set of PostScript prologue files", " which are either compiled in the gnuplot executable or stored elsewhere on your", " computer. This behaviour and the default directory where these files live are", " controlled at the time gnuplot is built. However, you can control this", " either by defining an environment variable GNUPLOT_PS_DIR or by using the", " gnuplot command `set loadpath`. See `set loadpath`.", "", "" END_HELP(post) #endif /* TERM_HELP */