gnuplot-old/term/mif.trm at master · gnuplot/gnuplot-old · GitHub

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/* Hello, Emacs, this is -*-C-*-

* $Id: mif.trm,v 1.34 2017-05-18 21:19:16 sfeam Exp $

/* GNUPLOT -- mif.trm */

/*[

* 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 file is included by ../term.c.

* This terminal driver was developed for

* gnuplot for unix version 3.0 (patchlevel 1)

* gnuplot for unix version 3.2 (patchlevel 2)

* This terminal driver supports:

* Frame Maker MIF format version 3.00

* Options for this terminal driver (set terminal mif [options]):

* colour / Draw primitives with line types >= 0 in colour (sep. 2-7)

* monochrome Draw primitives in black (sep. 0)

* polyline / Draw lines as continuous curves

* vectors Draw lines as collections of vectors

* help / ? Print short usage description on stderr

* Properties for this terminal driver:

* -Gnuplot size of worksheet: MIF_XMAX * MIF_YMAX

* -Unit in MIF output: cm

* -Plot primitives with the same pen will

* be grouped in the same MIF group.

* -Plot primitives with line types >= 0

* will as default be drawn in colour.

* -Lines are plotted as collections of

* vectors, or as continuous lines (default)

* -Plot primitives in a plot will be in a

* Frame in MIF. Several plot Frames will

* be collected in one large Frame.

* -Point size of MIF output characters: MIF_PSIZE

* -Used font for MIF output characters: Times

* -Supports vertical text

* -points and dots as characters

* -character formats for TextLines

* AUTHORS:

* Olof Franksson, Physics IV, KTH, S-100 44 Stockholm, Sweden

* NEW TERMINAL FORMAT: David C. Schooley

* COMMENTS:

* Send comments and/or suggestions to olof@fysik4.kth.se

* CHANGES:

* Changed to new terminal format 9/29/95 schooley@ee.gatech.edu

* Changed order of routine declarations. olof@fysik4.kth.se

* Changed mechanism for pen pattern selection. kssingvo@immd4.informatik.uni-erlangen.de

* Support for vertical text. kssingvo@immd4.informatik.uni-erlangen.de

* Fixed plot bug for "set size XS,YS", XS/YS > 1. olof@fysik4.kth.se

* Support colored text merritt@u.washington.edu

* Support box fill and pattern fill merritt@u.washington.edu

#include "driver.h"

#ifdef TERM_REGISTER

register_term(mif)

#endif

#ifdef TERM_PROTO

TERM_PUBLIC void MIF_init __PROTO((void));

TERM_PUBLIC void MIF_graphics __PROTO((void));

TERM_PUBLIC void MIF_text __PROTO((void));

TERM_PUBLIC void MIF_linetype __PROTO((int linetype));

TERM_PUBLIC void MIF_move __PROTO((unsigned int x, unsigned int y));

TERM_PUBLIC void MIF_vector __PROTO((unsigned int x, unsigned int y));

TERM_PUBLIC void MIF_put_text __PROTO((unsigned int x, unsigned int y, const char *str));

TERM_PUBLIC int MIF_text_angle __PROTO((int ang));

TERM_PUBLIC void MIF_reset __PROTO((void));

TERM_PUBLIC void MIF_options __PROTO((void));

TERM_PUBLIC int MIF_justify_text __PROTO((enum JUSTIFY mode));

TERM_PUBLIC void MIF_point __PROTO((unsigned int x, unsigned int y, int number));

TERM_PUBLIC void MIF_boxfill __PROTO((int style, unsigned int x1, unsigned int y1,

unsigned int width, unsigned int height));

TERM_PUBLIC void MIF_filled_polygon __PROTO((int points, gpiPoint* corners));

/** Coordinates **/

/* The cast to float is not necessary because we are dividing by a float */

/* On OSK the cast to a float is not allowed in a constant expression wich */

/* is used by the declaration and initialization of mif_line */

/* Converts gnuplot units to MIF units */

#define GNP_TO_MIF(P) ((P) / 1000.0)

/* Basic unit: 0.01 mm (15cm -> 15*10*100=15000) */

#define MIF_XMAX 15000

/* Basic unit: 0.01 mm (10cm -> 10*10*100=10000) */

#define MIF_YMAX 10000

#define MIF_XLAST (MIF_XMAX - 1)

#define MIF_YLAST (MIF_YMAX - 1)

static int insert_mif_line __PROTO((double fx, double fy));

static int proc_group_id __PROTO((int group_id));

static void free_mif_line __PROTO((void));

static void put_mif_line __PROTO((void));

static void MIF_set_font __PROTO((const char *));

static void mif_put_point __PROTO((unsigned int x, unsigned int y, int np));

#endif

#ifndef TERM_PROTO_ONLY

#ifdef TERM_BODY

#ifndef cfree

# define cfree free

#endif

static struct mif_line { /* Line point structure specification */

float fpos_x; /* Line point X coordinate */

float fpos_y; /* Y coordinate */

struct mif_line *next; /* Pointer to next line point */

struct mif_line *prev; /* Pointer to previous line point */

} mif_line =

{ /* Current position structure. Adjust for orign. Local for this file. */

GNP_TO_MIF(0),

GNP_TO_MIF(MIF_YLAST),

&mif_line,

&mif_line

};

/** Characters **/

#define MIF_PSIZE 9 /* Point size of used characters */

#define MIF_VCHAR (MIF_YMAX/31) /* Distance between rows (a guess) */

#define MIF_HCHAR (MIF_XMAX/95) /* Distance between characters (a guess) */

/** Scale marks **/

#define MIF_VTIC (MIF_YMAX/150) /* Size of scale mark (vert) */

#define MIF_HTIC (MIF_XMAX/225) /* Size of scale mark (hor) */

/** Drawing properties **/

static char mif_justify[64]; /* How to justify the used text */

static char mif_pen[64], mif_pen_width[64], mif_separation[64]; /* How to plot */

static char mif_textcolor[64]; /* EAM parallels separation */

static int mif_text_ang = 0; /* Rotation angle of text */

static int mif_fill_patterns[] = {7,12,3,0,9,8,14,13};

#define MIF_FILL_SOLID 0

#define MIF_FILL_NONE 15

#define MIF_NPENS 16 /* Number of MIF pen types */

static int mif_pentype = 0; /* Pen type to use. Also used to create groups for graphics */

#define MIF_PEN_TO_GROUP(P) ( 1 + (P) ) /* Map pen type to group number. Must be >= 1 */

static int mif_pattern_table[MIF_NPENS] =

{ /* Table, which pattern should be used for drawing */

0, /* border */

1, /* not used */

2, 3, 4, 8, 12, 13, /* other lines: functions, data, ... (5 is used for grid; 6,7 is (nearly) invisible) */

5, /* grid */

9, 10, 11, 12, 13, 14, 15 /* not used */

};

/** MIF groups administration **/

#define MIF_NGROUP_ID 20

static struct mif_group_id {

int group_existance;

/* This group id should generate a MIF group */

#define MIF_GROUP_EXISTS 1

/* This group id should not generate a MIF group */

#define MIF_GROUP_NOT_EXISTS 0

int group_id;

#define MIF_INVALID_GROUP_ID 0 /* An invalid MIF group ID */

} mif_group_id[MIF_NGROUP_ID]; /* List of used group ID:s and corresponding MIF groups existance */

/** Semaphores **/

static int mif_initialized = 0; /* != 0 when output is active */

static int mif_in_frame = 0; /* != 0 when inside a plot frame */

static int mif_frameno = -1; /* Current frame number */

static int mif_colour = TRUE; /* == TRUE when colour should be used */

static int mif_polyline = TRUE; /* == TRUE when lines are drawn as continuous curves */

struct mpt { /* point definition structure */

int chr; /* character for point */

float x_offset, y_offset; /* offset for vertical positioning */

char *font; /* font */

};

static char zgnuplot[] = "ZGnuplot"; /* character formats */

static char zgnuplotp[] = "ZGnuplotP";

static char zgnuplotd[] = "ZGnuplotD";

static const char *mif_font = NULL; /* actual character format */

static struct mpt mpt[POINT_TYPES + 1] =

{ /* point definition data */

{'.', 0.000, 0.005, zgnuplotd, /* dot */ },

{'G', 0.002, 0.084, zgnuplotp, /* diamond */ },

{';', 0.002, 0.084, zgnuplotp, /* plus */ },

{'n', 0.002, 0.084, zgnuplotp, /* box */ },

{'5', 0.002, 0.084, zgnuplotp, /* X */ },

{'s', 0.002, 0.062, zgnuplotp, /* triangle */ },

{'K', 0.005, 0.075, zgnuplotp, /* star */ },

};

/* diamond is offset 0, dot is offset -1 */

static struct mpt *mif_point = &(mpt[1]);

/** Declaration of routine/s for internal use **/

static int insert_mif_line __PROTO((double fx, double fy));

static int proc_group_id __PROTO((int group_id));

enum MIF_id {

MIF_MONOCHROME, MIF_COLOR, MIF_VECTORS, MIF_POLYLINE, MIF_HELP,

MIF_OTHER

};

static struct gen_table MIF_opts[] =

{

{ "m$onochrome", MIF_MONOCHROME },

{ "c$olor", MIF_COLOR },

{ "c$olour", MIF_COLOR },

{ "v$ectors", MIF_VECTORS },

{ "p$olyline", MIF_POLYLINE },

{ "h$elp", MIF_HELP },

{ "?$", MIF_HELP },

{ NULL, MIF_OTHER }

};

/** Routine/s **/

/* Called when this terminal type is set in order to parse options */

TERM_PUBLIC void

MIF_options()

{

while (!END_OF_COMMAND) {

switch(lookup_table(&MIF_opts[0],c_token)) {

/* Colour options */

case MIF_MONOCHROME:

mif_colour = FALSE;

c_token++;

break;

case MIF_COLOR:

mif_colour = TRUE;

c_token++;

break;

/* Curve options */

case MIF_VECTORS:

mif_polyline = FALSE;

c_token++;

break;

case MIF_POLYLINE:

mif_polyline = TRUE;

c_token++;

break;

/* Short help */

case MIF_HELP:

case MIF_OTHER:

default:

fprintf(stderr, "\

Usage: set terminal mif [options]\n\

\toptions:\n\

\t\tcolour / Draw primitives with line types >= 0 in colour (sep. 2-7)\n\

\t\tmonochrome Draw primitives in black (sep. 0)\n\n\

\t\tpolyline / Draw lines as continuous curves\n\

\t\tvectors Draw lines as collections of vectors\n\n\

\t\thelp / ? Print short usage description on stderr\n");

c_token++;

break;

}

sprintf(term_options, "%s %s",

(mif_colour == TRUE) ? "colour" : "monochrome",

(mif_polyline == TRUE) ? "polyline" : "vectors");

}

/* Deallocate the used line structure elements */

static void

free_mif_line()

{

struct mif_line *tline;

while (mif_line.prev != &mif_line) {

/* Unlink */

tline = mif_line.prev;

mif_line.prev = mif_line.prev->prev;

mif_line.prev->next = &mif_line;

/* Deallocate */

free(tline);

}

/* Make sure that the list will be empty */

mif_line.prev = &mif_line;

mif_line.next = &mif_line;

}

/* Draw the pending line. Change current position. */

static void

put_mif_line()

{

int np, i;

struct mif_line *tline;

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Count the number of available points */

for (tline = mif_line.next, np = 1; tline != &mif_line; tline = tline->next, np++);

/* Draw line (at least two points) */

if (np >= 2) {

/* Line preamble */

fprintf(gpoutfile, "\t<PolyLine <GroupID %d> %s %s %s <Fill 15>\n",

MIF_PEN_TO_GROUP(mif_pentype), mif_pen, mif_pen_width, mif_separation);

/* Draw the line elements */

fprintf(gpoutfile, "\t\t<NumPoints %d> ", np);

for (i = 0, tline = &mif_line; i < np; i++, tline = tline->next) {

if (i % 4 == 0)

fputs("\n\t\t", gpoutfile);

fprintf(gpoutfile, "<Point %.3f %.3f> ",

tline->fpos_x, tline->fpos_y);

}

/* Line post amble */

fputs("\n\t>\n", gpoutfile);

/* Register the used group ID */

proc_group_id(MIF_PEN_TO_GROUP(mif_pentype));

/* Avoid to redraw this. The MIF system should remember it. */

mif_pen[0] = '\0';

mif_pen_width[0] = '\0';

mif_separation[0] = '\0';

/* Move current position to end of line */

mif_line.fpos_x = mif_line.prev->fpos_x;

mif_line.fpos_y = mif_line.prev->fpos_y;

/* Restore the line */

free_mif_line();

}

} /* Line processed */

}

/* Filled box support - Ethan Merritt <merritt@u.washington.edu> */

TERM_PUBLIC void

MIF_boxfill(int style, unsigned int x1, unsigned int y1,

unsigned int width, unsigned int height)

{

int fill_pattern;

int fillpar = style >> 4;

style &= 0xf;

switch (style) {

default:

case FS_EMPTY: fill_pattern = 7;

break;

case FS_SOLID: fill_pattern = MIF_FILL_SOLID;

break;

case FS_PATTERN:fill_pattern = mif_fill_patterns[fillpar % 8];

break;

}

/* Object preamble */

fprintf(gpoutfile, "\t<Rectangle <GroupID %d> %s\n",

MIF_PEN_TO_GROUP(mif_pentype), mif_separation);

/* Set fill type */

fprintf(gpoutfile, "\t\t<Fill %d>\n", fill_pattern);

/* Draw the box */

fprintf(gpoutfile, "\t\t<ShapeRect %.3f %.3f %.3f %.3f>\n",

GNP_TO_MIF(x1), GNP_TO_MIF(MIF_YLAST - (y1+height)),

GNP_TO_MIF(width), GNP_TO_MIF(height));

/* End of object */

fputs("\n\t>\n", gpoutfile);

/* Register the used group ID */

proc_group_id(MIF_PEN_TO_GROUP(mif_pentype));

}

/* Filled polygon. Ethan Merritt <merritt@u.washington.edu> */

TERM_PUBLIC void

MIF_filled_polygon(int points, gpiPoint* corners)

{

int i;

/* Object preamble */

fprintf(gpoutfile, "\t<Polygon <GroupID %d>\n",

MIF_PEN_TO_GROUP(mif_pentype));

/* Set fill type */

fprintf(gpoutfile, "\t\t<Fill %d>\n", MIF_FILL_SOLID);

/* Draw the line elements */

fprintf(gpoutfile, "\t\t<NumPoints %d> ", points);

for (i=0; i<points; i++) {

fprintf(gpoutfile, "<Point %.3f %.3f> ",

GNP_TO_MIF(corners[i].x),

GNP_TO_MIF(MIF_YLAST - corners[i].y));

}

/* End of object */

fputs("\n\t>\n", gpoutfile);

/* Register the used group ID */

proc_group_id(MIF_PEN_TO_GROUP(mif_pentype));

}

/* Draw a point */

static void

mif_put_point(unsigned int x, unsigned int y, int np)

{

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Draw pending line */

if (mif_polyline == TRUE)

put_mif_line();

/* Adjust current position for text-graphics alignment */

MIF_move(x, y);

/* center text */

MIF_justify_text(CENTRE);

/* Draw the point */

fprintf(gpoutfile, "\t<TextLine <GroupID %d> %s\n",

MIF_PEN_TO_GROUP(mif_pentype),

mif_textcolor);

MIF_set_font(mif_point[np].font);

fprintf(gpoutfile, "\t\t<TLOrigin %.3f %.3f> %s <String `%c'>\n",

mif_line.fpos_x + mif_point[np].x_offset,

mif_line.fpos_y + mif_point[np].y_offset,

mif_justify,

mif_point[np].chr);

fputs("\t>\n", gpoutfile);

/* Register the used group ID */

proc_group_id(MIF_PEN_TO_GROUP(mif_pentype));

/* Avoid to redraw this. The MIF system should remember it. */

mif_justify[0] = '\0';

} /* Point processed */

}

* draw points

TERM_PUBLIC void

MIF_point(unsigned int x, unsigned int y, int number)

{

if (number < 0) { /* dot */

number = -1;

} else { /* point */

number %= POINT_TYPES;

}

mif_put_point(x, y, number);

}

/* Set up a MIF output file */

TERM_PUBLIC void

MIF_init()

{

int i;

/* Process if not inside a MIF file and Frame */

if (mif_initialized == 0 && mif_in_frame == 0) {

/* Tell this terminal driver that the output is initialized and

* no current frames are processed */

mif_initialized = 1;

mif_in_frame = 0;

/* Reset internal position */

free_mif_line();

mif_line.fpos_x = GNP_TO_MIF(0);

mif_line.fpos_y = GNP_TO_MIF(MIF_YLAST);

/* Reset drawing properties strings */

mif_pen[0] = '\0';

mif_pen_width[0] = '\0';

mif_separation[0] = '\0';

MIF_justify_text(LEFT);

/* Reset group ID generator */

for (i = 0; i < MIF_NGROUP_ID; i++) {

mif_group_id[i].group_id = MIF_INVALID_GROUP_ID;

mif_group_id[i].group_existance = MIF_GROUP_NOT_EXISTS;

}

/* Identify ourselves */

/*bs show borders */

/* Setup a default environment to use */

fprintf(gpoutfile, "\

<MIFFile 3.00> # Generated by gnuplot version %s patchlevel %s; identifies this as a MIF file\n\

#\n\

# show borders\n\

<Document\n<DBordersOn Yes>\n>\n\

# Set a default pen pattern, pen width, unit and font for subsequent objects\n\

<Pen 0>\n\

<Fill 15>\n\

<PenWidth 0.5 pt>\n\

<Separation 0>\n\

<Units Ucm>\n\

<FontCatalog\n\

\t<FFamily `Times'><FSize %d><FPlain Yes>>\n\

\t<FFamily `ZapfDingbats'><FSize 7.0 pt><FPlain Yes>>\n\

\t<FFamily `Symbol'><FSize 5.0 pt><FPlain Yes>>\n\

>\n\

#\n",

gnuplot_version, gnuplot_patchlevel,

zgnuplot, MIF_PSIZE,

zgnuplotp,

zgnuplotd);

} /* MIF file created */

}

/* Finish of a MIF output file */

TERM_PUBLIC void

MIF_reset()

{

/* Process if inside a MIF file and not inside a Frame */

if (mif_initialized != 0 && mif_in_frame == 0) {

/* Finish off the MIF file */

fputs("\

#\n\

# End of MIFFile\n", gpoutfile);

/* Tell this terminal driver that the output is finished */

mif_initialized = 0;

/* bs: reset frame number */

mif_frameno = -1;

} /* MIF file finished */

}

/* Start plotting a Frame (-> graphics mode) */

TERM_PUBLIC void

MIF_graphics()

{

int i;

/* Process if not inside a Frame */

if (mif_initialized != 0 && mif_in_frame == 0) {

/* Tell that this terminal driver is working with a plot frame */

mif_in_frame = 1;

/* Update frame number */

mif_frameno++;

/* Set current position */

free_mif_line();

mif_line.fpos_x = GNP_TO_MIF(0);

mif_line.fpos_y = GNP_TO_MIF(MIF_YLAST);

/* Set drawing properties */

mif_pen[0] = '\0';

mif_pen_width[0] = '\0';

mif_separation[0] = '\0';

MIF_justify_text(LEFT);

/* Reset group ID generator */

for (i = 0; i < MIF_NGROUP_ID; i++) {

mif_group_id[i].group_id = MIF_INVALID_GROUP_ID;

mif_group_id[i].group_existance = MIF_GROUP_NOT_EXISTS;

}

/* Frame preamble */

fprintf(gpoutfile, "\

#\n\

# Frame number %d with plot of graphics\n\

<Frame\n\

\t<Pen 15>\n\

\t<Fill 15>\n\

\t<PenWidth 0.5 pt>\n\

\t<Separation 0>\n\

\t<BRect 2.000 %.3f %.3f %.3f>\n\

\t<NSOffset 0.000>\n\

\t<BLOffset 0.000>\n",

mif_frameno,

((float) mif_frameno) * GNP_TO_MIF(MIF_YMAX + 100),

GNP_TO_MIF(MIF_XMAX), GNP_TO_MIF(MIF_YMAX));

} /* Frame created */

}

/* Stop plotting a Frame (-> text mode) */

TERM_PUBLIC void

MIF_text()

{

int i;

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Draw pending line */

if (mif_polyline == TRUE)

put_mif_line();

/* Group the used plot primitives */

fputs("\

\t#\n\

\t# Group the the objects in groups to make the chart easier to manipulate\n\

\t# after it's imported into FrameMaker.\n", gpoutfile);

for (i = 0; i < MIF_NGROUP_ID; i++) {

if (mif_group_id[i].group_id != MIF_INVALID_GROUP_ID &&

mif_group_id[i].group_existance == MIF_GROUP_EXISTS) {

fprintf(gpoutfile, "\

\t<Group\n\

\t\t<ID %d>\n\

\t>\n", mif_group_id[i].group_id);

}

/* Frame post amble */

fprintf(gpoutfile, "\

>\n\

# End of Frame number %d\n\

#\n",

mif_frameno);

/* Tell that this terminal driver is not working with a plot frame */

mif_in_frame = 0;

} /* Frame finshed */

}

/* Select type of line in grapics */

/* NOTE: actually written to output the first time a primitive

* is drawn AFTER this call */

/* -2=border, -1=X/Y-axis, 0-13=lines, and 14-=mapped back */

TERM_PUBLIC void

MIF_linetype(int linetype)

{

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Draw pending line */

if (mif_polyline == TRUE)

put_mif_line();

/* Translate gnuplot pen types to MIF pen types */

if (linetype < 0) { /* Special lines */

if (linetype == LT_AXIS) {

mif_pentype = 8 + MIF_NPENS; /* -1 */

if (mif_colour == TRUE)

sprintf(mif_separation, " <Separation 0> ");

} else {

mif_pentype = 0 + MIF_NPENS; /* -2 or less */

if (mif_colour == TRUE)

sprintf(mif_separation, " <Separation 0> ");

}

sprintf(mif_pen_width, " <PenWidth 1.0 pt> ");

/* EAM - set text color to black */

sprintf(mif_textcolor, " > ");

} else { /* Normal lines */

mif_pentype = (linetype) % MIF_NPENS; /* 0-(MIF_NPENS-1) */

sprintf(mif_pen_width, " <PenWidth 0.1 pt> ");

if (mif_colour == TRUE)

sprintf(mif_separation, " <Separation %d> ",

2 + (mif_pentype % 6)); /* 2-7 */

/* EAM - set text color also */

if (mif_colour == TRUE)

sprintf(mif_textcolor, " > ",

2 + (mif_pentype % 6)); /* 2-7 */

}

/* Set pen type */

sprintf(mif_pen, " <Pen %d> ",

mif_pattern_table[mif_pentype % MIF_NPENS]);

} /* Primitive processed */

}

/* Allow arbitrary text rotation */

TERM_PUBLIC int

MIF_text_angle(int ang)

{

mif_text_ang = ang;

return (TRUE);

}

/* Justify following text lines (MIF_put_text()) relative to the

* insertion point

* NOTE: actually written to output in text primitives which are

* drawn AFTER this call */

TERM_PUBLIC int

MIF_justify_text(enum JUSTIFY mode)

{

int rval = TRUE;

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

switch (mode) {

case LEFT:

sprintf(mif_justify, " <TLAlignment Left> ");

break;

case CENTRE:

sprintf(mif_justify, " <TLAlignment Center> ");

break;

case RIGHT:

sprintf(mif_justify, " <TLAlignment Right> ");

break;

default:

rval = FALSE;

break;

}

/* Primitive processed */

else {

rval = FALSE;

}

return (rval);

}

/* Draw a vector from current position to (x, y) and change current position.

* NOTE: actually written to output the first time another primitive

* is called AFTER this call */

TERM_PUBLIC void

MIF_vector(unsigned int x, unsigned int y)

{

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Setup the vector as a part of the line */

insert_mif_line(GNP_TO_MIF(x), GNP_TO_MIF(MIF_YLAST - (int) y));

/* Draw pending line -> vector */

if (mif_polyline == FALSE)

put_mif_line();

} /* Vector processed */

}

/* Move current position */

TERM_PUBLIC void

MIF_move(unsigned int x, unsigned int y)

{

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Draw pending line */

if (mif_polyline == TRUE)

put_mif_line();

mif_line.fpos_x = GNP_TO_MIF(x);

mif_line.fpos_y = GNP_TO_MIF(MIF_YLAST - (int) y);

}

/* set font */

static void

MIF_set_font(const char *font)

{

if (font != mif_font) {

fprintf(gpoutfile, "\t\t<Font\n\t\t\t<FTag `%s'>\n\t\t>\n", font);

mif_font = font;

}

/* Draw the text string str at (x, y). Adjust according to MIF_justify_text().

* Change current position. */

TERM_PUBLIC void

MIF_put_text(unsigned int x, unsigned int y, const char str[])

{

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Draw pending line */

if (mif_polyline == TRUE)

put_mif_line();

/* Adjust current position for text-graphics alignment */

MIF_move(x, y - MIF_VCHAR / 5);

if (strlen(str) > 0) {

/* Draw the text */

fprintf(gpoutfile, "\t<TextLine <GroupID %d> %s %s %s %s\n",

MIF_PEN_TO_GROUP(mif_pentype), mif_pen,

mif_pen_width, mif_separation, mif_textcolor);

MIF_set_font(zgnuplot);

fprintf(gpoutfile, "\

\t\t<TLOrigin %.3f %.3f> %s <Angle %d> <String `%s'>\n\

\t>\n",

mif_line.fpos_x, mif_line.fpos_y, mif_justify,

mif_text_ang, str);

/* Register the used group ID */

proc_group_id(MIF_PEN_TO_GROUP(mif_pentype));

/* Avoid to redraw this. The MIF system should remember it. */

mif_pen[0] = '\0';

mif_pen_width[0] = '\0';

mif_separation[0] = '\0';

mif_justify[0] = '\0'; /* Independent of linetype */

}

} /* Text processed */

}

/* Insert one point in the line */

static int

insert_mif_line(double fx, double fy)

{

int rval = TRUE;

if ((mif_line.prev->next = (struct mif_line *) gp_alloc(sizeof(struct mif_line),

"MIF driver")) != (struct mif_line *) NULL) {

/* Link */

mif_line.prev->next->next = &mif_line;

mif_line.prev->next->prev = mif_line.prev;

mif_line.prev = mif_line.prev->next;

/* Fill */

mif_line.prev->fpos_x = fx;

mif_line.prev->fpos_y = fy;

rval = TRUE;

} else { /* Failed to allocate */

/* Relink */

mif_line.prev->next = &mif_line;

rval = FALSE;

}

return (rval);

}

/* Register group ID. Update group ID existance. */

/* Returns: 1 group_id belongs to a MIF group

0 group_id does not belong to a MIF group

-1 not inside a Frame

-2 group ID list is full

static int

proc_group_id(int group_id)

{

int i, rval = 0;

/* Process if inside a Frame */

if (mif_initialized != 0 && mif_in_frame != 0) {

/* Find out the group ID, or a free group ID slot index. */

for (i = 0; i < MIF_NGROUP_ID &&

mif_group_id[i].group_id != MIF_INVALID_GROUP_ID &&

mif_group_id[i].group_id != group_id;

i++) {

/* Don't check the group_existance variable */

}

if (i < MIF_NGROUP_ID) {

if (mif_group_id[i].group_id == MIF_INVALID_GROUP_ID) {

/* Register as new group ID for eventual use as MIF group */

mif_group_id[i].group_id = group_id;

mif_group_id[i].group_existance = MIF_GROUP_NOT_EXISTS;

} else {

/* If second use of this group ID -> create a new MIF group */

if (mif_group_id[i].group_id == group_id) {

mif_group_id[i].group_existance = MIF_GROUP_EXISTS;

/* NOTE: a group MUST have at least two members. */

rval = 1;

}

} else {

rval = -2; /* No place for this group ID in the list */

}

/* Group ID processed */

else {

rval = -1; /* Not inside a Frame */

}

/* Return MIF group status */

return (rval);

}

#endif

#ifdef TERM_TABLE

TERM_TABLE_START(mif_driver)

"mif", "Frame maker MIF 3.00 format",

MIF_XMAX, MIF_YMAX, MIF_VCHAR, MIF_HCHAR,

MIF_VTIC, MIF_HTIC, MIF_options, MIF_init, MIF_reset,

MIF_text, null_scale, MIF_graphics, MIF_move, MIF_vector,

MIF_linetype, MIF_put_text, MIF_text_angle,

MIF_justify_text, MIF_point, do_arrow, set_font_null,

0, /* pointsize */

0, /* flags */

0, 0, /* suspend, resume */

MIF_boxfill,

0 /* linewidth */

#ifdef USE_MOUSE

, 0, 0, 0, 0, 0

#endif

,0 /* make_palette */

,0 /* previous_palette */

,0 /* set_color */

,MIF_filled_polygon /* filled_polygon */

TERM_TABLE_END(mif_driver)

#undef LAST_TERM

#define LAST_TERM mif_driver

#endif

#endif /* TERM_PROTO_ONLY */

#ifdef TERM_HELP

START_HELP(mif)

"1 mif",

"?commands set terminal mif",

"?set terminal mif",

"?set term mif",

"?terminal mif",

"?term mif",

"?mif",

" Note: Legacy terminal.",

" The `mif` terminal driver produces Frame Maker MIF format version 3.00. It",

" plots in MIF Frames with the size 15*10 cm, and plot primitives with the same",

" pen will be grouped in the same MIF group. Plot primitives in a `gnuplot`",

" page will be plotted in a MIF Frame, and several MIF Frames are collected in",

" one large MIF Frame. The MIF font used for text is \"Times\".",

"",

" Several options may be set in the MIF 3.00 driver.",

"",

" Syntax:",

" set terminal mif {color | colour | monochrome} {polyline | vectors}",

" {help | ?}",

"",

" `colour` plots lines with line types >= 0 in colour (MIF sep. 2--7) and",

" `monochrome` plots all line types in black (MIF sep. 0).",

" `polyline` plots curves as continuous curves and `vectors` plots curves as",

" collections of vectors.",

" `help` and `?` print online help on standard error output---both print a",

" short description of the usage; `help` also lists the options.",

"",

" Examples:",

" set term mif colour polylines # defaults",

" set term mif # defaults",

" set term mif vectors",

" set term mif help"

END_HELP(mif)

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