damc@natmlab.dms.oz.AU (Don McCormick) (12/20/87)
The following shar contains the source for two filters. 1. HPGL to PostScript 2. DXY to PostScript --------------------------- Cut ------------------------------------------ # This is a shell archive. Remove anything before this line, then # unpack it by saving it in a file and typing "sh file". (Files # unpacked will be owned by you and have default permissions.) # # This archive contains: # README Makefile dxy2ps.man hpgl2ps.man defn.h changesizes.c circle.c dxy2ps.c dxycom.c end_draw.c getval.c hpgl2ps.c hpglcom.c linesize.c linetype.c manualfeed.c plotcoords.c plotdot.c plotinit.c plotps.c ps_macros.c rectangle.c textps.c viewport.c test1.dxy test1.hpgl echo x - README cat > "README" << '//E*O*F README//' There are two filters in this package which are based on the Roland plotter command set. 1. DXY: A simple command set which is used with all DXY plotters 2. RD-GL: This command set is a superset of the HP (Hewlet Packard) graphics language. Not all the commands of DXY or RD-GL (HPGL) are implemented (approx 95% are) and those commands that are not are skipped and a warning given. It is very easy to add to this filter if a particular unimplemented command is desired. If you wish to implement a command go to the relevant portion in the command switch "dxycom.c" or "hpglcom.c" and call an appropriate user written procedure. (You will need a good knowledge of writing PostScript programs) The filters use the the procedure "getopt" which is used to interpret command line options and arguments and is normally available on 4.3 bsd and Sys V Unix. For those sites running 4.1 or 4.2 it may be available as a local library and must be written into the Makefile. IF YOU DONT HAVE GETOPT YOU WILL HAVE REWRITE THE CODE THAT INTERPRETS COMMAND LINE OPTIONS AND ARGUMENTS. NOTE 1: The method of writing text is not fully compatible with HPGL and will be changed at a later date. NOTE 2: The PostScript macros are written into a C procedure to allow each filter to be a single stand alone program. These macros can easily be incorporated into other filter programs. I have written some test procedures for the testing of each filter they are "test1.hpgl" for hpgl2ps and "test1.dxy" for dxy2ps. Don McCormick. //E*O*F README// echo x - Makefile cat > "Makefile" << '//E*O*F Makefile//' # 1.0 dxy2ps and hpgl2ps (Copyright) D McCormick # Commercial reproduction prohibited. # FILTER1= dxy2ps FILTER2= hpgl2ps INSDIR= /usr/local/bin INCLUDE= defn.h LOCALLIB= libroland.a AR= ar ARFLAGS= ru LOADLIBES= -lm CFLAGS= -g OBJ1= dxy2ps.o OBJ2= hpgl2ps.o OBJC= changesizes.o circle.o dxycom.o end_draw.o\ getval.o hpglcom.o linesize.o linetype.o\ manualfeed.o plotdot.o plotinit.o plotps.o\ ps_macros.o rectangle.o textps.o viewport.o\ plotcoords.o all: $(FILTER1) $(FILTER2) $(FILTER1): $(LOCALLIB) $(OBJ1) $(CC) $(CFLAGS) -o $@ $(OBJ1) $(LOCALLIB) $(LOADLIBES) $(FILTER2): $(LOCALLIB) $(OBJ2) $(CC) $(CFLAGS) -o $@ $(OBJ2) $(LOCALLIB) $(LOADLIBES) $(LOCALLIB): $(OBJC) $(AR) $(ARFLAGS) $@ $(OBJC) ranlib $(LOCALLIB) $(OBJC): $(INCLUDE) $(OBJ1): $(INCLUDE) $(OBJ2): $(INCLUDE) install: $(FILTER1) install -s $(FILTER1) $(INSDIR) install2: $(FILTER2) install -s $(FILTER2) $(INSDIR) clean: -rm -f *.o a.out core libroland.a //E*O*F Makefile// echo x - dxy2ps.man cat > "dxy2ps.man" << '//E*O*F dxy2ps.man//' .TH DXY2PS (1L) "25 September 1987" .SH NAME dxy2ps - A Roland DXY plot command filter to PostScript .SH SYNOPSIS \fBdxy2ps\fR [\fB-amr\fR] [\fB-l \fIline sizes\fR] [\fB-s \fIscale\fR] [\fB-x \fIoffset\fR] [\fB-y \fIoffset\fR] [\fIplotfile\fR] .SH DESCRIPTION This filter is used to convert the Roland DXY and the Roland Graphics Language (RD-GL) (which is a superset of the Hewlet Packard Graphics Language (HP-GL)) commands to PostScript. .PP The RD-GL commands are only operated on if each command is prefixed with a "^", therfore if your plotfile only contains HP-GL or RD-GL commands use the filter \fBhpgl2ps\fR. .PP The default conditions for \fBdxy2ps\fR are: .TP .B 1. The plot translation is from ISO A3 (420mm x 297mm) to ISO A4 (297mm x 210mm) on the LaserWriter. .TP .B 2. Line thicknesses are in millimeters and are for lines (pens) 1 to 9: ( 0.1, 0.2, 0.3, 0.4, 0.5, 0.7, 1.0, 1.25, 1.5 ) .TP .B Note: If the plotfile is not specified then standard input is assumed. .SH ARGUMENTS .TP .B -a Draw on an A4 ISO (297mm x 210mm) sheet of paper. This will give an aproximate 1:1 translation to the LaserWriter. .TP \fB-l \fIline sizes\fR This option allows the default line sizes to be replaced with different sizes starting from line (pen) one through nine. The new sizes (real or integer) are entered in a comma seperated string (\fIline size\fR) and are in millimeters. Only the sizes entered in the string will be changed with respect to lines (pens) one to nine while nonentered line (pen) sizes will retain the default sizes. .sp In the following example only the first three sizes will be changed. .sp eg: dxy2ps -l 0.4,0.3,1 file | lpr -Plaser1 .TP .B -m Enable the manual feed on the LaserWriter (cutoff time 3 minutes). .TP .B -r Rotate plot(s) through 90 degrees. (The plot is made smaller) .TP \fB-s\fI scale\fR Scale the plot from 0.1 to 3 times its original size. .TP \fB-x\fI offset\fR Place an X offset (in mm) in the plot. .TP \fB-y\fI offset\fR Place an Y offset (in mm) in the plot. .PP \fBNote:\fR Offsets are with respect to the 0, 0 (origin) of the HP-GL / RD-GL plotting commands, thus if the minimum plotting coordinates are below either the X and/or Y zero axis then a positive offset is applied. Similarly if the minimum plot coordinates are above the X and/or Y zero axis then a negative offset is applied. .SH FILES /usr/local/bin/dxy2ps .br /usr/local/bin/hpgl2ps .SH AUTHOR Don McCormick .br CSIRO .br Division of Applied Physics .br PO 218, Lindfield, N.S.W., 2070 .br Australia .SH BUGS Some of the graphics commands are unimplemented and a warning will be displayed. If this command is vital then it must be written into the code. .PP No interactive command is suported. .PP If any bugs are found notify damc@natmlab or damc@nifty or root. //E*O*F dxy2ps.man// echo x - hpgl2ps.man cat > "hpgl2ps.man" << '//E*O*F hpgl2ps.man//' .TH HPGL2PS (1L) "25 September 1987" .SH NAME hpgl2ps - A HP (Hewlet Packard) plot command filter to PostScript .SH SYNOPSIS \fBhpgl2ps\fR [\fB-amr\fR] [\fB-l \fIline sizes\fR] [\fB-s \fIscale\fR] [\fB-x \fIoffset\fR] [\fB-y \fIoffset\fR] [\fIplotfile\fR] .SH DESCRIPTION This filter is used to convert the Hewlet Packard Graphic Language (HP-GL) 9873C plotter commands to PostScript. The HP-GL commands are a subset of the Roland plotter command set (RD-GL). .PP The default conditions for \fBhpgl2ps\fR are: .TP .B 1. The plot translation is from ISO A3 (420mm x 297mm) to ISO A4 (297mm x 210mm) on the LaserWriter. .TP .B 2. Line thicknesses are in millimeters and are for lines (pens) 1 to 9: ( 0.1, 0.2, 0.3, 0.4, 0.5, 0.7, 1.0, 1.25, 1.5 ) .TP .B Note: If the plotfile is not specified then standard input is assumed. .SH ARGUMENTS .TP .B -a Draw on an A4 ISO (297mm x 210mm) sheet of paper. This will give an aproximate 1:1 translation to the LaserWriter. .TP \fB-l \fIline sizes\fR This option allows the default line sizes to be replaced with different sizes starting from line (pen) one through nine. The new sizes (real or integer) are entered in a comma seperated string (\fIline size\fR) and are in millimeters. Only the sizes entered in the string will be changed with respect to lines (pens) one to nine while nonentered line (pen) sizes will retain the default sizes. .sp In the following example only the first three sizes will be changed. .sp eg: hpgl2ps -l 0.4,0.3,1 file | lpr -Plaser1 .TP .B -m Enable the manual feed on the LaserWriter (cutoff time 3 minutes). .TP .B -r Rotate plot(s) through 90 degrees. (The plot is made smaller) .TP \fB-s\fI scale\fR Scale the plot from 0.1 to 3 times its original size. .TP \fB-x\fI offset\fR Place an X offset (in mm) in the plot. .TP \fB-y\fI offset\fR Place an Y offset (in mm) in the plot. .PP \fBNote:\fR Offsets are with respect to the 0, 0 (origin) of the HP-GL / RD-GL plotting commands, thus if the minimum plotting coordinates are below either the X and/or Y zero axis then a positive offset is applied. Similarly if the minimum plot coordinates are above the X and/or Y zero axis then a negative offset is applied. .SH FILES /usr/local/bin/hpgl2ps .SH AUTHOR Don McCormick .br CSIRO .br Division of Applied Physics .br PO 218, Lindfield, N.S.W., 2070 .br Australia .SH BUGS Some of the graphics commands are unimplemented and a warning will be displayed. If this command is vital then it must be written into the code. .PP No interactive command is suported. .PP If any bugs are found notify damc@natmlab or damc@nifty or root. //E*O*F hpgl2ps.man// echo x - defn.h cat > "defn.h" << '//E*O*F defn.h//' /* * * The following definations allow for the efficient * translation of DXY and RD-GL codes to PostScript code * */ #include <stdio.h> #include <math.h> #include <ctype.h> #define CR '\015' #define LF '\012' #define SPACE '\040' #define SIGNED_NUMERIC (ungetc(( ch = getc(stream)),stream) != EOF ) &&\ (((ch>='0') && (ch<='9')) || (ch=='-') || (ch=='+')\ || (ch==' ') || (ch==',') || (ch == '.')) #define CIRCLE 21 /* DXY Circle */ #define RCIRCLE 22 /* DXY Relative Circle */ #define CCIRCLE 23 /* DXY Centered Circle */ #define ACIRCLE 24 /* DXY Arc plus Circle */ #define SCIRCLE 25 /* DXY Segment Circle */ #define RDGLCIRCLE 26 /* RD-GL Circle */ #define TEXT 31 #define MARK 32 #define LINETYPE 41 #define LINESCALE 42 #define LINE_TYPE_SCALE 43 /* * Files to open if any */ FILE *stream; FILE *fopen(); /* * Plotting Parameters that will contain the necessary PostScript * commands to plot (see dxy2ps.c for the initialisation) and * ps_macros.c for the plotting macros). */ char *MOVE; char *RMOVE; char *DRAW; char *RDRAW; /* * Definition of "ch" used in SIGNED_NUMERIC */ char ch; /* * Define the function getval() which returns a real number. */ float getval(); /* * Scaling parameters used for translation from DXY and RD-GL * coordinate sytem to the PostScript coordinate system which * has been defined in millimeters. (See above) */ float SCALE; float XSCALE; float YSCALE; float xmax, xmin; float ymax, ymin; /* * End of line terminator (RD-GL / HP-GL) */ char EOL; /* * PostScript Coordinate parameters */ float lastXmove; float lastYmove; float absX; float absY; float xval; float yval; float xoffset, yoffset; /* * Extra parameters */ float char_angle; float char_height; float char_width; float char_space; float char_slant; char font[]; char symbol; int dcount; /* * Degree radian conversion parameter ie: deg_rad = asin(1) / 90.0; * ( Defined in dxy2ps.c or rdgl2ps.c ) */ float deg_rad; /* * Line / pen size parameter (max 9 sizes) */ float pen_size[9]; /* * Paper size (ie A3 or A4) and Mode (HPGL or DXY) */ char *PaperSize; char *Mode; /* * Flags */ int LANDSCAPE; int DRAW_FLAG; int PLOTABS; int PENDOWN; int SETDOT; /* HP-GL commands only */ int SYMBOL; /* HP-GL commands only */ //E*O*F defn.h// echo x - changesizes.c cat > "changesizes.c" << '//E*O*F changesizes.c//' /* * This utility will take a string of real numbers seperated by commas and * put them in an array. * * Don McCormick */ #include "defn.h" #define ERROR1 "Only 9 line sizes allowed" #define ERROR2 "Too many decimal points in number" #define ERROR3 "line size specification incorrect" #define ERROR4 "Max no of characters for each line size is 5" changesizes(sizebuf) char sizebuf[50]; { int i; int j = 0; int k = 0; int DECIMAL = 0; float number; char numbuf[5]; for (i = 0; i < 50; i++) { if (sizebuf[i] == ',' || sizebuf[i] == NULL) { if ((number = atof(numbuf)) >= 0.01 && number <= 10) pen_size[j] = number; /* Put number in array */ else fprintf(stderr, "Warning: line size too large ignored \n"); if (sizebuf[i] == NULL) return; if (j++ > 8) { fprintf(stderr, "Error: %s\n", ERROR1); exit(1); } for (k = 0; k < 5; k++) numbuf[k] = NULL; /* Clear number buffer */ k = 0; DECIMAL = 0; /* One decimal per number */ while (sizebuf[i + 1] == ',' && sizebuf[i + 1] != NULL) i++; /* Get rid of extra commas */ } else { if ((sizebuf[i] >= '0' && sizebuf[i] <= '9') || sizebuf[i] == '.') { if (sizebuf[i] == '.') { if (DECIMAL == 1) { fprintf(stderr, "Error: %s\n", ERROR2); exit(1); } DECIMAL = 1; } numbuf[k] = sizebuf[i]; } else { fprintf(stderr, "Error: %s\n", ERROR3); exit(1); } if (k++ > 5) { fprintf(stderr, "Error: %s\n", ERROR4); exit(1); } } } } //E*O*F changesizes.c// echo x - circle.c cat > "circle.c" << '//E*O*F circle.c//' #include "defn.h" circle(type) int type; { float radius; float start_angle = 0; float end_angle = 360; float chord_angle = 0; float Xc, Yc; float percent; float distance; float length; float angle; end_draw(); switch (type) { case RDGLCIRCLE: if (SIGNED_NUMERIC) radius = getval() * XSCALE; if (SIGNED_NUMERIC) chord_angle = getval(); Xc = absX; Yc = absY; break; case CIRCLE: if (SIGNED_NUMERIC) absX = Xc = getval() * XSCALE; if (SIGNED_NUMERIC) absY = Yc = getval() * YSCALE; if (SIGNED_NUMERIC) radius = getval() * XSCALE; if (SIGNED_NUMERIC) start_angle = getval(); if (SIGNED_NUMERIC) end_angle = getval(); if (SIGNED_NUMERIC) chord_angle = getval(); break; case RCIRCLE: if (SIGNED_NUMERIC) radius = getval() * XSCALE; if (SIGNED_NUMERIC) start_angle = getval(); if (SIGNED_NUMERIC) end_angle = getval(); if (SIGNED_NUMERIC) chord_angle = getval(); angle = deg_rad * (90.0 - start_angle); Xc = absX - radius * cos(angle); angle = deg_rad * (90.0 - start_angle); Yc = absY + radius * sin(angle); break; case CCIRCLE: if (SIGNED_NUMERIC) absX = getval() * XSCALE; if (SIGNED_NUMERIC) absY = getval() * YSCALE; break; case ACIRCLE: Xc = absX; Yc = absY; if (SIGNED_NUMERIC) radius = getval() * XSCALE; if (SIGNED_NUMERIC) start_angle = getval(); if (SIGNED_NUMERIC) end_angle = getval(); if (SIGNED_NUMERIC) chord_angle = getval(); break; case SCIRCLE: if (SIGNED_NUMERIC) percent = getval(); if (SIGNED_NUMERIC) distance = getval(); if (SIGNED_NUMERIC) length = getval(); fprintf("Warning: segment and indication lines not available yet\n"); break; } printf("%g %g %g %g %g %g Ellipse\n", Xc, Yc, radius, radius, start_angle, end_angle); } //E*O*F circle.c// echo x - dxy2ps.c cat > "dxy2ps.c" << '//E*O*F dxy2ps.c//' #include "defn.h" #define USAGE "Usage: dxy2ps [-amr] [-l line sizes] [-s scale] [-x offset] [-y offset] [file]\n" main(argc, argv) int argc; char *argv[]; { extern int optind; extern char *optarg; char op; int MANUAL_FEED = 0; /* DEFAULT: No manual feed */ PaperSize = "A3"; Mode = "DXY"; plotcoords(); /* Set up plotter coordinates */ plotinit(); /* Get other initialisations */ while ((ch = getopt(argc, argv, "al:ms:x:y:r")) != EOF) { switch (ch) { case 'a': /* DXY ISO A4 297mm * 210mm */ PaperSize = "A4"; plotcoords(); break; case 'l': changesizes(optarg); break; case 'm': MANUAL_FEED = 1; break; case 'r': LANDSCAPE = 0; break; case 's': SCALE = atof(optarg); if (SCALE < 0.1) SCALE = 0.1; else if (SCALE > 3) SCALE = 3; break; case 'x': xoffset = atof(optarg); break; case 'y': yoffset = atof(optarg); break; default: fprintf(stderr, "%s\n", USAGE); exit(1); } } if (optind == argc) stream = stdin; else if ((stream = fopen(argv[optind], "r")) == NULL) { fprintf(stderr, "ERROR: cannot open \"%s\"\n", argv[optind]); exit(1); } ps_macros(); /* Output PostScript Macros */ viewport(); /* Scale the viewport for the plot */ printf("/%s %g Font\n", font, char_height); if (MANUAL_FEED) manualfeed(1); while ((op = getc(stream)) != EOF) if ((isalpha(op) > 0) || op == '^') dxycom(op); end_draw(); printf("showpage\n"); if (MANUAL_FEED) manualfeed(0); } //E*O*F dxy2ps.c// echo x - dxycom.c cat > "dxycom.c" << '//E*O*F dxycom.c//' #include "defn.h" dxycom(op) char op; { int intval; switch (op) { case 'H': /* HOME */ case 'h': break; case 'D': /* DRAW */ case 'd': plotps(DRAW); break; case 'M': /* MOVE */ case 'm': plotps(MOVE); break; case 'I': /* RELATIVE DRAW */ case 'i': plotps(RDRAW); break; case 'R': /* RELATIVE MOVE */ case 'r': plotps(RMOVE); break; case 'L': /* LINE TYPE */ case 'l': linetype(LINETYPE); break; case 'B': /* LINE SCALE */ case 'b': linetype(LINESCALE); break; case 'X': /* AXIS */ case 'x': { int p, q, r; p = rint(getval()); q = rint(getval()); r = rint(getval()); fprintf(stderr, "Warning %c not implemented yet\n", op); } break; case 'P': /* PRINT */ case 'p': textps(TEXT); break; case 'S': /* ALPHA SCALE */ case 's': { int n; if (SIGNED_NUMERIC) n = rint(getval()); else n = 3; char_height = (n + 1) * 0.8 * SCALE; char_width = (n + 1) * 0.4 * SCALE; char_space = (n + 1) * 0.2 * SCALE; } printf("/%s %g %g %g DefFont\n", font, char_width, char_height, char_slant); break; case 'Q': /* ALPHA ROTATE */ case 'q': intval = rint(getval()); switch (intval) { case 0: char_angle = 0.0; break; case 1: char_angle = 90.0; break; case 2: char_angle = 180.0; break; case 3: char_angle = 270.0; break; } break; case 'N': /* MARK */ case 'n': textps(MARK); break; case 'J': /* PEN CHANGE */ case 'j': linesize(); break; case 'C': /* CIRCLE */ case 'c': circle(CIRCLE); break; case 'E': /* RELATIVE CIRCLE */ case 'e': circle(RCIRCLE); break; case 'A': /* CIRCLE CENTER */ case 'a': circle(CCIRCLE); break; case 'G': /* ARC + CIRCLE */ case 'g': circle(ACIRCLE); break; case 'K': /* SEGMENT AND INDICATION LINES FOR CIRCLES */ case 'k': circle(SCIRCLE); break; case 'T': /* HATCHING */ case 't': rectangle(); break; case '^': /* CALL HP-GL / RD-GL COMMANDS */ end_draw(); if ((ch = getc(stream)) != EOF) hpglcom(ch); break; default: fprintf(stderr, "Warning: %c Unknown DXY command\n", op); break; } } //E*O*F dxycom.c// echo x - end_draw.c cat > "end_draw.c" << '//E*O*F end_draw.c//' #include "defn.h" end_draw() { if (DRAW_FLAG) { if (lastXmove == absX && lastYmove == absY) printf("closepath\n"); printf("stroke\n"); DRAW_FLAG = 0; } dcount = 0; } //E*O*F end_draw.c// echo x - getval.c cat > "getval.c" << '//E*O*F getval.c//' /* * Returns a real number */ #include "defn.h" #define ERROR "Two or more decimal places in a number" float getval() { char valbuf[10]; float value; int DECIMAL = 0; int i; /* Null the value buffer "valbuf" */ for (i = 0; i < 10; i++) valbuf[i] = NULL; i = 0; ch = getc(stream); while ((ch == ' ') || (ch == ',')) ch = getc(stream); while ((ch >= '0' && ch <= '9') || ch == '.' || ch == '-' || ch == '+') { if (ch == '.') { if (DECIMAL) { fprintf(stderr,"Error: %s\n", ERROR); exit(1); } DECIMAL = 1; } valbuf[i++] = ch; ch = getc(stream); } ungetc(ch, stream); /* Put non numeric char back */ value = atof (valbuf); return (value); } //E*O*F getval.c// echo x - hpgl2ps.c cat > "hpgl2ps.c" << '//E*O*F hpgl2ps.c//' #include "defn.h" #define USAGE "Usage: hpgl2ps [-amr] [-l line sizes] [-s scale] [-x offset] [-y offset] [file]\n" main(argc, argv) int argc; char *argv[]; { extern int optind; extern char *optarg; char op; int MANUAL_FEED = 0; /* DEFAULT: No manual feed */ PaperSize = "A3"; Mode = "HPGL"; plotcoords(); plotinit(); /* Get other initialiasations */ while ((ch = getopt(argc, argv, "al:ms:x:y:r")) != EOF) { switch (ch) { case 'a': /* HP-GL ISO A4 297mm * 210mm */ PaperSize = "A4"; plotcoords(); break; case 'l': changesizes(optarg); break; case 'm': MANUAL_FEED = 1; break; case 'r': LANDSCAPE = 0; break; case 's': SCALE = atof(optarg); if (SCALE < 0.1) SCALE = 0.1; else if (SCALE > 3) SCALE = 3; break; case 'x': xoffset = atof(optarg); break; case 'y': yoffset = atof(optarg); break; default: fprintf(stderr, "%s\n", USAGE); exit(1); } } if (optind == argc) stream = stdin; else if ((stream = fopen(argv[optind], "r")) == NULL) { fprintf(stderr, "ERROR: cannot open \"%s\"\n", argv[optind]); exit(1); } ps_macros(); /* Output PostScript Macros */ viewport(); /* Scale the viewport for the plot */ printf("/%s %g Font\n", font, char_height); if (MANUAL_FEED) manualfeed(1); while ((op = getc(stream)) != EOF) if (isalpha(op) > 0) hpglcom(op); end_draw(); printf("showpage\n"); if (MANUAL_FEED) manualfeed(0); } //E*O*F hpgl2ps.c// echo x - hpglcom.c cat > "hpglcom.c" << '//E*O*F hpglcom.c//' /* * This procedure translates RD-GL (Roland DG Graphic Language) into the * equivalent PostScript language. * * The RD-GL is a superset equivalent to HP-GL * * Don McCormick */ #include "defn.h" /* The folowing defaults should be 0.5% and 1.0% for the respective character * width and height, however this is too small when scaled to Postcript * charcter sizes. */ float DEFWIDTH = 0.0075; /* 0.75 % of P2x - P1x for default char width */ float DEFHEIGHT = 0.015; /* 1.5 % of P2y - P1y for default char height */ hpglcom(op1) char op1; { char op2; int no_op; /* No operation value */ switch (op1) { case 'A': case 'a': op2 = getc(stream); switch (op2) { case 'A': /* Arc Absolute (not HP-GL) */ case 'a': break; case 'P': /* Automatic Pen Lift (HP-GL only) */ case 'p': while (((ch = getc(stream)) != EOF) && ch != ';'); break; case 'R': /* Arc Relative (not HP-GL) */ case 'r': break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n\n", op1, op2); } break; case 'C': case 'c': op2 = getc(stream); switch (op2) { case 'A': /* Alternate Character Set (Not Used) */ case 'a': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr, "Warning: Alt character set not implemented yet\n"); break; case 'I': /* Circle */ case 'i': circle(RDGLCIRCLE); break; case 'P': /* Character Plot */ case 'p': { float xspace, yspace; xspace = getval() * XSCALE * SCALE * (char_width + char_space); yspace = getval() * YSCALE * SCALE * (char_width + char_space); end_draw(); printf(" %g mm %g mm %s\n", xspace, yspace, RMOVE); } break; case 'S': /* Standard Character Set */ case 's': while (((ch = getc(stream)) != EOF) && ch != ';'); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'D': case 'd': op2 = getc(stream); switch (op2) { case 'C': /* Digitize Clear (Not Used) */ case 'c': break; case 'F': /* Default */ case 'f': SETDOT = 0; SYMBOL = 0; PENDOWN = 0; EOL = '\003'; char_angle = 0; char_slant = 0; char_width = DEFWIDTH * (xmax - xmin) * XSCALE * SCALE; char_height = DEFHEIGHT * (ymax - ymin) * YSCALE * SCALE; char_space = char_width * (1/.67 - 1); printf("/%s %g %g %g DefFont\n", font, char_width, char_height, char_slant); break; case 'I': /* Absolute Direction */ case 'i': { float run, rise; if (SIGNED_NUMERIC) { run = getval() * XSCALE; rise = getval() * YSCALE; char_angle = atan2(rise, run) / deg_rad; } else char_angle = 0; } break; case 'P': /* Digitize Point (Not Used) */ case 'p': break; case 'R': /* Relative Direction */ case 'r': { float run, rise; if (SIGNED_NUMERIC) { run = getval() * XSCALE; rise = getval() * YSCALE; char_angle += atan2(rise, run) / deg_rad; } else char_angle = 0; } break; case 'T': /* Define Terminator */ case 't': if ((ch = getc(stream)) != EOF) EOL = ch; /* End of label terminator */ break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'E': /* NOT HP-GL */ case 'e': op2 = getc(stream); switch (op2) { case 'A': /* Edge Rectangle Absolute */ case 'a': break; case 'R': /* Edge Rectangle Relative */ case 'r': break; case 'W': /* Edge Wedge */ case 'w': break; default: fprintf(stderr, "Warning: %c%c Unknown RD-GL Command\n", op1, op2); } break; case 'F': /* NOT HP-GL */ case 'f': op2 = getc(stream); switch (op2) { case 'T': /* Fill Type */ case 't': break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'I': case 'i': op2 = getc(stream); switch (op2) { case 'M': /* Input Mask (Not Used) */ case 'm': break; case 'N': /* Initialize */ case 'n': plotcoords(); SETDOT = 0; SYMBOL = 0; PENDOWN = 0; EOL = '\003'; char_angle = 0; char_slant = 0; char_width = DEFWIDTH * (xmax - xmin) * XSCALE * SCALE; char_height = DEFHEIGHT * (ymax - ymin) * YSCALE * SCALE; char_space = char_width * (1/0.67 - 1); printf("/%s %g %g %g DefFont\n", font, char_width, char_height, char_slant); break; case 'P': /* Input P1 and P2 (Not Used) */ case 'p': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr,"Warning: IP command not implemented\n"); break; case 'W': /* Input Window */ case 'w': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr,"Warning: IW command not implemented\n"); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'L': case 'l': op2 = getc(stream); switch (op2) { case 'B': /* Label */ case 'b': textps(TEXT); break; case 'T': /* Line Type */ case 't': linetype(LINE_TYPE_SCALE); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'O': /* NOT USED */ case 'o': op2 = getc(stream); switch (op2) { case 'A': /* Output Actual Position (Not HP-GL) */ case 'a': break; case 'C': /* Output Commanded Position */ case 'c': break; case 'D': /* Output Digitise */ case 'd': break; case 'E': /* Output Error */ case 'e': break; case 'P': /* Output P1 and P2 */ case 'p': break; case 'S': /* Output Status */ case 's': break; case 'W': /* Output Window (Not HP-GL) */ case 'w': break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'P': case 'p': op2 = getc(stream); switch (op2) { case 'A': /* Plot Absolute */ case 'a': PLOTABS = 1; if (SIGNED_NUMERIC) if (SETDOT || SYMBOL) plotdot(MOVE); else if (PENDOWN) plotps(DRAW); else plotps(MOVE); break; case 'D': /* Pen Down */ case 'd': PENDOWN = 1; if (SIGNED_NUMERIC) if (SETDOT) plotdot(MOVE); else if (PLOTABS) plotps(DRAW); else plotps(RDRAW); break; case 'R': /* Plot Relative */ case 'r': PLOTABS = 0; if (SIGNED_NUMERIC) if (SETDOT || SYMBOL) plotdot(RMOVE); else if (PENDOWN) plotps(RDRAW); else plotps(RMOVE); break; case 'T': /* Pen Thickness (Not HP-GL) */ case 't': { float linewidth; linewidth = getval() * SCALE; /* In mm */ printf("%g mm setlinewidth\n", linewidth); } break; case 'U': /* Pen Up */ case 'u': PENDOWN = 0; if (SIGNED_NUMERIC) if (SETDOT) plotdot(MOVE); else if (PLOTABS) plotps(MOVE); else plotps(RMOVE); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'R': /* Not HP-GL */ case 'r': op2 = getc(stream); switch (op2) { case 'A': /* Shade Rectange Absolute */ case 'a': break; case 'R': /* Shade Rectangle Relative */ case 'r': break; default: fprintf(stderr, "Warning: %c%c Unknown RD-GL Command\n", op1, op2); } break; case 'S': case 's': op2 = getc(stream); switch (op2) { case 'A': /* Select Alternate Set (Not Used) */ case 'a': break; case 'C': /* Scale */ case 'c': if (SIGNED_NUMERIC) xmin = getval(); else break; if (SIGNED_NUMERIC) xmax = getval(); if (SIGNED_NUMERIC) ymin = getval(); if (SIGNED_NUMERIC) ymax = getval(); fprintf(stderr, "Warning: Scaling not implemented yet\n"); break; case 'I': /* Absolute Character Size */ case 'i': if (SIGNED_NUMERIC) { char_width = getval() * 10 * SCALE; /* In mm */ char_height = getval() * 10 * SCALE; /* In mm */ } else { if ((ch = getc(stream)) == ';') { char_width = 2.7 * SCALE; char_height = 1.9 * SCALE; } } char_space = char_width * (1/.67 - 1); printf("/%s %g %g %g DefFont\n", font, char_width, char_height, char_slant); break; case 'L': /* Character Slant */ case 'l': if (SIGNED_NUMERIC) char_slant = char_height * getval(); else char_slant = 0; char_space = char_width * (1/.67 - 1); printf("/%s %g %g %g DefFont\n", font, char_width, char_height, char_slant); break; case 'M': /* Symbol Mode */ case 'm': if ((ch = getc(stream)) != EOF && ch != ';' && isgraph(ch) > 0) { symbol = ch; SYMBOL = 1; } else SYMBOL = 0; break; case 'P': /* Pen Select */ case 'p': linesize(); break; case 'R': /* Relative Character Size */ case 'r': { float pwidth, pheight; if (SIGNED_NUMERIC) { pwidth = getval() * SCALE; /* Percent */ pheight = getval() * SCALE; /* Percent */ } else { pwidth = DEFWIDTH * 100 * SCALE; pheight = DEFHEIGHT * 100 * SCALE; } char_width = (xmax - xmin) * XSCALE * pwidth / 100.0; char_height = (ymax - ymin) * YSCALE * pheight / 100.0; char_space = char_width * (1/.67 - 1); } printf("/%s %g %g %g DefFont\n", font, char_width, char_height, char_slant); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'T': case 't': op2 = getc(stream); switch (op2) { case 'L': /* Tick Length */ case 'l': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr, "Warning: Tick length not implemented yet\n"); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'U': case 'u': op2 = getc(stream); switch (op2) { case 'C': /* User Defined Character */ case 'c': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr, "Warning: User defined character not implemented yet\n"); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'V': case 'v': op2 = getc(stream); switch (op2) { case 'S': /* Velocity Select */ case 's': while (((ch = getc(stream)) != EOF) && ch != ';'); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'W': /* Not HP-GL */ case 'w': op2 = getc(stream); switch (op2) { case 'G': /* Shade Wedge */ case 'g': break; default: fprintf(stderr, "Warning: %c%c Unknown RD-GL Command\n", op1, op2); } break; case 'X': case 'x': op2 = getc(stream); switch (op2) { case 'T': /* X Tick */ case 't': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr, "Warning: X tick not implemented yet\n"); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; case 'Y': case 'y': op2 = getc(stream); switch (op2) { case 'T': /* Y Tick */ case 't': while (((ch = getc(stream)) != EOF) && ch != ';'); fprintf(stderr, "Warning: Y tick not implemented yet\n"); break; default: fprintf(stderr, "Warning: %c%c Unknown HP-GL Command\n", op1, op2); } break; default: fprintf(stderr, "Warning: %c Unknown HP-GL First Op Command\n", op1); break; } } //E*O*F hpglcom.c// echo x - linesize.c cat > "linesize.c" << '//E*O*F linesize.c//' #include "defn.h" linesize() { int ipen = 0; float linewidth; if (SIGNED_NUMERIC) ipen = getval() - 1; if (ipen < 0 || ipen > 8) ipen = 0; linewidth = pen_size[ipen] * SCALE; /* In mm */ printf("%g mm setlinewidth\n", linewidth); } //E*O*F linesize.c// echo x - linetype.c cat > "linetype.c" << '//E*O*F linetype.c//' /* * Sets the line type and the scaling of the line pattern * * Don McCormick CSIRO Division of Applied Physics National Measurements * Laboritory Bradfield Road Lindfield 2018 N.S.W. * * NOTE: default length for a line pattern is approx 6.5 mm on A4 size paper. */ #include "defn.h" float linescale; int linestyle; linetype(line) int line; { float down1, down2; float up1, up2; float diagonal; end_draw(); if (line == LINE_TYPE_SCALE) /* HP-GL only */ { if (SIGNED_NUMERIC) { if ((linestyle = rint(getval())) > 6) linestyle = 6; else if (linestyle < -6) linestyle = -6; } else { SETDOT = 0; printf("[] 0 setdash\n"); return; } diagonal = pow((xmax - xmin),2.0) + pow((ymax - ymin),2.0); diagonal = pow(diagonal,0.5); if (SIGNED_NUMERIC) linescale = getval() * 0.01 * diagonal * XSCALE * SCALE * 0.2; else linescale = 0.015 * diagonal * XSCALE * SCALE * 0.2; } else if (line == LINESCALE) /* DXY commands only */ { if (SIGNED_NUMERIC) linescale = getval() / 80 * SCALE; else return; } else if (line == LINETYPE) /* DXY commands only */ { if (SIGNED_NUMERIC) { if ((linestyle = rint(getval())) > 5) linestyle = 5; else if (linestyle < -5) linestyle = -5; } else return; } else { fprintf(stderr, "Error: Unknown line flag in linetype.c\n"); exit(1); } /* * select a line style/type and scale/pitch */ switch (linestyle) { case 6: down1 = 2.0; up1 = up2 = 1.5; down2 = 1.5; break; case 5: down1 = 3.0; up1 = up2 = 1.0; down2 = 1.5; break; case 4: down1 = 4.0; up1 = up2 = 0.75; down2 = 1.0; break; case 3: down1 = 5.0; up1 = up2 = 1.0; down2 = 0.5; break; case 2: down1 = 5.5; up1 = 1.0; up2 = down2 = 0.0; break; case 1: down1 = 5.0; up1 = 1.5; up2 = down2 = 0.0; break; case -1: down1 = 1.5; up1 = 3.5; down2 = 1.5; up2 = 0.0; break; case -2: down1 = 2.0; up1 = 2.5; down2 = 2.0; up2 = 0.0; break; case -3: down1 = 2.5; up1 = up2 = 1.75; down2 = 0.5; break; case -4: down1 = 2.5; up1 = up2 = 1.5; down2 = 1.5; break; case -5: down1 = down2 = 2.0; up1 = up2 = 1.25; break; case -6: down1 = down2 = 1.75; up1 = up2 = 1.5; break; } if (linestyle == 0) { SETDOT = 1; /* For HP-GL only */ printf("[] 0 setdash\n"); /* For DXY commands */ } else { SETDOT = 0; /* For HP-GL only */ if (linescale <= 0) linescale = SCALE; down1 *= linescale; up2 *= linescale; up1 *= linescale; down2 *= linescale; printf("[%g mm %g mm %g mm %g mm] 0 setdash\n", down1, up1, down2, up2); } } //E*O*F linetype.c// echo x - manualfeed.c cat > "manualfeed.c" << '//E*O*F manualfeed.c//' /* * A procedure to allow the user to use the manual feed on * the LaserWriter. * The default wait before timeout is 3 minutes however this * is easily changed. * * argument: 1. Enable manual feed. * 0. Disable manual feed. * * Don McCormick */ manualfeed(arg) int arg; { if (arg == 1) { printf("statusdict /manualfeed true put\n"); printf("statusdict /manualfeedtimeout 180 put\n"); /* 3 minute wait */ } else printf("statusdict /manualfeed false put\n"); printf("usertime 5000 add\n"); printf("{dup usertime lt {pop exit} if} loop\n"); } //E*O*F manualfeed.c// echo x - plotcoords.c cat > "plotcoords.c" << '//E*O*F plotcoords.c//' /* * Define default maximum and minimum plotting coordinates. * P1 (xmin, ymin), P2 (xmax, ymax) * * PaperSize can be: * "A3" ISO (420mm by 297mm) * "A4" ISO (297mm by 210mm) * "A" ANSI (11" by 8.5") * "B" ANSI (17" by 11") * * Mode can be: "HPGL" or "DXY" * * Don McCormick */ #include "defn.h" plotcoords() { if (strcmp(Mode, "HPGL") == 0) { if (strcmp(PaperSize, "A3") == 0) /* HP-GL ISO A3 420mm * 297mm */ { xmax = 15200; ymax = 10800; } else /* HP-GL ISO A4 297mm * 210mm */ { xmax = 10800; ymax = 7680; } } else { if (strcmp(PaperSize, "A3") == 0) /* DXY ISO A3 420mm * 297mm */ { xmax = 3800; ymax = 2700; } else /* DXY ISO A4 297mm * 210mm */ { xmax = 2700; ymax = 1920; } } xmin = ymin = 0.0; } //E*O*F plotcoords.c// echo x - plotdot.c cat > "plotdot.c" << '//E*O*F plotdot.c//' /* * Plot a dot or symbol on the paper */ #include "defn.h" plotdot(type) char *type; { end_draw(); while (SIGNED_NUMERIC) { xval = getval() * XSCALE; yval = getval() * YSCALE; if (type == RMOVE) { absX += xval; absY += yval; } else if (type == MOVE) { absX = xval; absY = yval; } else { fprintf(stderr, "Error: expecting move command not %s\n", type); exit(1); } if (SYMBOL) printf("%g %g 5 %g (%c) Text\n", absX, absY, char_angle, symbol); else if (SETDOT) { printf("newpath\n"); printf(" %g %g %s %g %g %s\n", absX, absY, MOVE, absX, absY, DRAW); printf("stroke\n"); } } } //E*O*F plotdot.c// echo x - plotinit.c cat > "plotinit.c" << '//E*O*F plotinit.c//' #include "defn.h" plotinit() { /* * Initialisation of PostScript plot macros */ MOVE = "M"; RMOVE = "R"; DRAW = "D"; RDRAW = "I"; LANDSCAPE = 1; /* Display plot in Landscape mode */ SCALE = 1; /* Default Scale */ PLOTABS = 1; /* Absolute plot coordinates */ PENDOWN = 0; /* Penup */ SETDOT = 0; /* HP-GL only for linetype = 0 */ SYMBOL = 0; /* HP-GL only */ /* * Default line/pen sizes (in mm) */ pen_size[0] = 0.1; pen_size[1] = 0.2; pen_size[2] = 0.3; pen_size[3] = 0.4; pen_size[4] = 0.5; pen_size[5] = 0.7; pen_size[6] = 1.0; pen_size[7] = 1.25; pen_size[8] = 1.5; font = "Helvetica"; /* Default font */ EOL = '\003'; /* End of line terminator default */ /* * Default character specifications */ char_angle = 0; /* Degrees */ char_slant = 0; /* tan(angle) */ char_height = 2.7; /* mm */ char_space = 0.8; /* mm */ char_width = 1.9; /* mm */ /* * Page offsets set to zero */ xoffset = yoffset = 0; /* * Define degree to radian parameter */ deg_rad = asin(1.0) / 90.0; } //E*O*F plotinit.c// echo x - plotps.c cat > "plotps.c" << '//E*O*F plotps.c//' #include "defn.h" #define MAXDRAWPOINTS 100 plotps(type) char *type; { if (type == MOVE || type == RMOVE) { while (SIGNED_NUMERIC) { if (type == MOVE) { end_draw(); absX = lastXmove = getval() * XSCALE; absY = lastYmove = getval() * YSCALE; } else if (type == RMOVE) { end_draw(); lastXmove = absX += getval() * XSCALE; lastYmove = absY += getval() * YSCALE; } } } else /* Must be a DRAW or RDRAW */ { while (SIGNED_NUMERIC) { if (dcount++ >= MAXDRAWPOINTS) { end_draw(); printf("newpath\n"); printf(" %g %g %s\n", absX, absY, MOVE); DRAW_FLAG = 1; fprintf(stderr, "Warning exceeded 100 draw points\n"); } xval = getval() * XSCALE; yval = getval() * YSCALE; if (!DRAW_FLAG) { printf("newpath\n"); printf(" %g %g %s\n", absX, absY, MOVE); DRAW_FLAG = 1; } if (type == RDRAW) { absX += xval; absY += yval; printf(" %g %g %s\n", xval, yval, RDRAW); } else if (type == DRAW) { absX = xval; absY = yval; printf(" %g %g %s\n", absX, absY, DRAW); } else { fprintf(stderr, "Error: expecting draw command not %s\n", type); exit(1); } } } } //E*O*F plotps.c// echo x - ps_macros.c cat > "ps_macros.c" << '//E*O*F ps_macros.c//' ps_macros() { printf("%%! PS-Adobe-1.0: For Apple LaserWriter\n"); printf("%% default font is 10 pt. Helvetica\n"); printf("/basefont {/Helvetica findfont 10 scalefont setfont} def\n"); printf("/mm {72.27 mul 25.4 div} def\n"); /* Specify millimeters */ printf("/M\n"); /* Move macro */ printf("{\n"); printf(" /Ymove exch def\n"); printf(" /Xmove exch def\n"); printf(" Xmove mm Ymove mm moveto\n"); printf("} def\n"); printf("/R\n"); /* Relative move macro */ printf("{\n"); printf(" /Yrmove exch def\n"); printf(" /Xrmove exch def\n"); printf(" Xrmove mm Yrmove mm rmoveto\n"); printf("} def\n"); printf("/D\n"); /* Draw macro */ printf("{\n"); printf(" /Ydraw exch def\n"); printf(" /Xdraw exch def\n"); printf(" Xdraw mm Ydraw mm lineto\n"); printf("} def\n"); printf("/I\n"); /* Relative draw macro */ printf("{\n"); printf(" /Yrdraw exch def\n"); printf(" /Xrdraw exch def\n"); printf(" Xrdraw mm Yrdraw mm rlineto\n"); printf("} def\n"); /* * Procedure to change font and size of font * ----> font size Font <---- */ printf("/Font\n"); printf("{\n"); printf(" /Height exch def\n"); printf(" /FontName exch def\n"); printf(" FontName findfont Height mm scalefont setfont\n"); printf("} def\n"); /* * Procedure to change font, width, slant and height * ----> font width height slant DefFont <---- * * Note: slant = height * tan( slant_angle ) */ printf("/DefFont\n"); printf("{\n"); printf(" /Slant exch def\n"); printf(" /Height exch def\n"); printf(" /Width exch def\n"); printf(" /FontName exch def\n"); printf(" FontName findfont [ Width mm 0 Slant mm Height mm 0 0] makefont setfont\n"); printf("} def\n"); /* * General Text Layout Procedure * ----> x y pos_num angle (text) Text <---- */ printf("/Text\n"); printf("{\n"); printf(" /String exch def\n"); printf(" /Angle exch def\n"); printf(" /Position exch def\n"); printf(" /Ymove exch def\n"); printf(" /Xmove exch def\n"); printf(" Position 1 lt {/hpf 0 def /lpf 0 def} if\n"); printf(" Position 1 eq {/hpf 0 def /lpf 0 def} if\n"); printf(" Position 2 eq {/hpf 0 def /lpf 0.5 def} if\n"); printf(" Position 3 eq {/hpf 0 def /lpf 1 def} if\n"); printf(" Position 4 eq {/hpf 0.5 def /lpf 0 def} if\n"); printf(" Position 5 eq {/hpf 0.5 def /lpf 0.5 def} if\n"); printf(" Position 6 eq {/hpf 0.5 def /lpf 1 def} if\n"); printf(" Position 7 eq {/hpf 1 def /lpf 0 def} if\n"); printf(" Position 8 eq {/hpf 1 def /lpf 0.5 def} if\n"); printf(" Position 9 eq {/hpf 1 def /lpf 1 def} if\n"); printf(" Position 9 gt {/hpf 1 def /lpf 1 def} if\n"); printf(" /StrLen String stringwidth pop lpf mul def\n"); printf(" /StrHt Height mm hpf mul def\n"); printf(" /Xdiff StrHt Angle sin mul StrLen Angle cos mul sub def\n"); printf(" /Ydiff StrHt Angle cos mul StrLen Angle sin mul add def\n"); printf(" Xmove mm Xdiff add Ymove mm Ydiff sub moveto\n"); printf(" gsave\n"); printf(" Angle rotate\n"); printf(" String show\n"); printf(" grestore\n"); printf(" /PosterOnly 0 def\n"); printf("} def\n"); /* * Ellipse and Circle procedure. * ----> xcen ycen xrad yrad start_angle end_angle Ellipse <---- */ printf("/EllipseDict 8 dict def\n"); printf("EllipseDict /mtrx matrix put\n"); printf("/Ellipse \n"); printf("{ EllipseDict begin\n"); printf(" /endangle exch def\n"); printf(" /startangle exch def\n"); printf(" /yradius exch def\n"); printf(" /xradius exch def\n"); printf(" /ycenter exch def\n"); printf(" /xcenter exch def\n"); printf(" /savematrix mtrx currentmatrix def\n"); printf(" xcenter mm ycenter mm translate\n"); printf(" xradius mm yradius mm div 1 scale\n"); printf(" newpath\n"); printf(" 0 0 xradius mm startangle endangle arc\n"); printf(" stroke\n"); printf(" savematrix setmatrix\n"); printf(" end\n"); printf("} def\n"); printf("basefont\n"); /* Set the default font */ printf("1 setlinecap\n"); /* Use round caps */ printf("1 setlinejoin\n"); /* Use round joins */ printf("3 setmiterlimit\n"); /* Bevel small angle miters */ } //E*O*F ps_macros.c// echo x - rectangle.c cat > "rectangle.c" << '//E*O*F rectangle.c//' #include "defn.h" rectangle() { int hatch; float width, height; float hatch_spacing; float hatch_angle; if (SIGNED_NUMERIC) hatch = getval(); if (SIGNED_NUMERIC) width = getval() * XSCALE; if (SIGNED_NUMERIC) height = getval() * YSCALE; if (SIGNED_NUMERIC) hatch_spacing = getval() * XSCALE; if (SIGNED_NUMERIC) hatch_angle = getval(); end_draw(); printf("%g %g M\n", xval, yval); printf("%g 0 I\n", width); printf("0 %g I\n", height); printf("-%g 0 I\n", width); printf("closepath stroke\n"); if (hatch != 2) fprintf(stderr, "Warning: Cross hatching not implemented yet\n"); } //E*O*F rectangle.c// echo x - textps.c cat > "textps.c" << '//E*O*F textps.c//' #include "defn.h" #define MAXBUFSIZE 100 textps(type) int type; { char string[4]; char buffer[MAXBUFSIZE]; float Xch, Ych; int intval; int i; end_draw(); if (type == TEXT) { for (i = 0 ; i < MAXBUFSIZE; i++) /* Clear buffer */ buffer[i] = NULL; i = 0; /* Reset buffer counter */ while (((ch = getc(stream)) != EOF) && ch != CR && ch != LF && ch != EOL) { buffer[i++] = ch; /* printf("%g %g 1 %g (%c) Text\n", absX, absY, char_angle, ch); * absX += (char_width + char_space) * cos(char_angle * deg_rad); * absY += (char_width + char_space) * sin(char_angle * deg_rad); */ } printf("%g %g 1 %g (%s) Text\n", absX, absY, char_angle, buffer); } else /* Must be a MARK */ { int symb_num; if (SIGNED_NUMERIC) symb_num = getval(); else { fprintf(stderr, "Error: expecting a symbol number not %c (%d)", symb_num, symb_num); exit(1); } intval = (int)(getval() + 0.5); switch (intval) { case 0: strcpy(string, "*"); break; case 1: strcpy(string, "+"); break; case 2: strcpy(string, "#"); break; case 3: strcpy(string, "@"); break; case 4: strcpy(string, "%"); break; case 5: strcpy(string, "|"); break; case 6: strcpy(string, "="); break; case 7: strcpy(string, "&"); break; case 9: strcpy(string, "O"); break; case 10: strcpy(string, "0"); break; case 11: strcpy(string, "Y"); break; case 12: strcpy(string, "X"); break; case 13: strcpy(string, "Z"); break; case 14: strcpy(string, "S"); break; case 15: strcpy(string, "Q"); break; default: fprintf(stderr, "Warning symbol number is %d\n", symb_num); strcpy(string, "*"); break; } printf("%g %g 5 %g (%s) Text\n", absX, absY, char_angle, string); } } //E*O*F textps.c// echo x - viewport.c cat > "viewport.c" << '//E*O*F viewport.c//' /* * This procedure sets up the variables for the translation of plotter * coordinates to PostScript coordinates. * * Note: the procedure "defaults" may be incorporated here, however * I have not had the time to work it out properly. * * Don McCormick */ #include "defn.h" viewport() { float pagewidth = 197.0; /* Page width for Laser Printer */ float pageheight = 280.0; /* Page height for Laser Printer */ float pwoffset = 12; float phoffset = 12; float psxmax, psymax; /* Sizes scaled to the viewport */ if (LANDSCAPE) /* Default mode */ { psymax = pagewidth * 0.938095; psxmax = psymax * (xmax - xmin)/ (ymax - ymin); xoffset += (pageheight + phoffset - psxmax) / 2.0; yoffset -= (pagewidth + pwoffset + psymax) / 2.0; printf("90 rotate\n"); } else { psxmax = pagewidth * 0.938095; psymax = psxmax * (ymax - ymin) / (xmax - xmin); xoffset += (pagewidth + pwoffset - psxmax) / 2.0; yoffset += (pageheight + phoffset - psymax) / 2.0; } printf("%g mm %g mm translate\n", xoffset, yoffset); XSCALE = psxmax / xmax * SCALE; YSCALE = psymax / ymax * SCALE; } //E*O*F viewport.c// echo x - test1.dxy cat > "test1.dxy" << '//E*O*F test1.dxy//' J1 M 1000, 1000 I 100, 0, -200,0, 100, 0, 0,100,0, -200 P Hi There C 1000, 1000, 500, 0, 250 M 2000,1000 I 100, 0, -200,0, 100, 0, 0,100,0, -200 L 2 J5 C 2000, 1000, 500, 250, 0 J3 M 0 0 I 3800,0,0,2700,-3800,0,0,-2700 M 500,2000 ^SL1;S50PDXY-880 ^SL;S3 //E*O*F test1.dxy// echo x - test1.hpgl cat > "test1.hpgl" << '//E*O*F test1.hpgl//' DF;IN;LT;PU1000,1000;PD2000,1000,2000,2000,1000,2000,1000,1000; PR-100,0,0,-100,100,0,0,100; PU;PA0,0;PD10800,0,10800,7680,0,7680,0,0;PU; LT6,2;PA;PU4000,1400;PD;PR4000,0; LT5,2;PA;PU4000,1300;PD;PR4000,0; LT4,2;PA;PU4000,1200;PD;PR4000,0; LT3,2;PA;PU4000,1100;PD;PR4000,0; LT2,2;PA;PU4000,1000;PD;PR4000,0; LT1,2;PA;PU4000,900;PD;PR4000,0; LT0;PA;PU4000,800;PD;PR4000,0; LT-1,2;PA;PU4000,700;PD;PR4000,0; LT-2,2;PA;PU4000,600;PD;PR4000,0; LT-3,2;PA;PU4000,500;PD;PR4000,0; LT-4,2;PA;PU4000,400;PD;PR4000,0; LT-5,2;PA;PU4000,300;PD;PR4000,0; LT-6,2;PA;PU4000,200;PD;PR4000,0; PU;PA2000,4000; DI;LB -- 0deg -- DI1,1;LB -- 45deg -- DI0,1;LB -- 90deg -- DI-1,1;LB -- 135deg -- DI-1,0;LB -- 180deg -- DI-1,-1;LB -- 225deg -- DI0,-1;LB -- 270deg -- DI1,-1;LB -- 315deg -- PA4000,4000; DI;SL1;LB SLANT of 45deg PA4000,3600; SL-1;LB SLANT of -45deg PA2000,6000; SL;SR;LB Size is relative PA2000,5500; SI;LB DEFAULT sizes PA2000,5000; SI.8,1;LBLARGE size (w=8mm, h=10mm) LT; PA 9000,1000;CI500,20;CI400;CI300;CI200,1;CI100;CI50; IN;SM+;PA9000,1000,10000,1000;SM%;PR0,500,0,-1000; SM; //E*O*F test1.hpgl// exit 0