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

/*[

* GNUPLOT - grass.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 software is provided "as is" without express or implied warranty.

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

* This terminal driver supports:

* GRASS graphics driver

* AUTHOR

* James Darrell McCauley, PhD http://soils.ecn.purdue.edu/~mccauley/

* Dept of Agricultural Engineering mccauley@ecn.purdue.edu

* Purdue University tel: 317.494.1198 fax: 317.496.1115

* 05 Apr 1995 - cleaned up code by adding explicit function declarations.

* compiles clean with 'gcc -Wall'

* 14 Apr 1995 - adapted for new layout, added font selection

* 13 Jan 1999 - Copyright statement changed to new gnuplot copyright

* Permission given by orig author in private email (lh)

* send your comments or suggestions to (grassp-list@moon.cecer.army.mil).

]*/

#include "driver.h"

#ifdef TERM_REGISTER

register_term(grass)

#endif

#ifdef TERM_PROTO

TERM_PUBLIC void GRASS_move(unsigned int x, unsigned int y);

TERM_PUBLIC void GRASS_options(void);

TERM_PUBLIC void GRASS_init(void);

TERM_PUBLIC void GRASS_reset(void);

TERM_PUBLIC void GRASS_graphics(void);

TERM_PUBLIC void GRASS_text(void);

TERM_PUBLIC void GRASS_vector(unsigned int x, unsigned int y);

TERM_PUBLIC void GRASS_linetype(int lt);

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

TERM_PUBLIC int GRASS_text_angle(float ang);

TERM_PUBLIC int GRASS_justify_text(enum JUSTIFY mode);

TERM_PUBLIC void GRASS_point(unsigned int x, unsigned int y, int point);

TERM_PUBLIC int GRASS_set_font(const char *font);

#endif /* TERM_PROTO */

#ifndef TERM_PROTO_ONLY

#ifdef TERM_BODY

#include <stdio.h>

#include <string.h>

/* #include "gis.h" */ /* this causes conflicts with things in term.c */

#define GRASS_XMAX 1000

#define GRASS_YMAX 1000

#define GRASS_VCHAR 5

#define GRASS_HCHAR 5

#define GRASS_VTIC 3

#define GRASS_HTIC 3

#define PNT_SIZE 3

#define TYPE_DOT -1

#define TYPE_X 0

#define TYPE_PLUS 1

#define TYPE_BOX 2

#define TYPE_DIAMOND 3 /* need type 4 and 5 */

#define TYPE_TRIANGLE 4

#define TYPE_OCTO 5

#define TYPE_ITRIANGLE 6

#define TYPE_FBOX 7

#define TYPE_FTRIANGLE 8

#define TYPE_FITRIANGLE 9

#define TYPE_FOCTO 10

static void cont_abs(int x, int y);

static void draw_points_dot(int x, int y);

static void draw_points_diamond(int x, int y);

static void draw_points_box(int x, int y);

static void draw_points_fbox(int x, int y);

static void draw_points_itriangle(int x, int y);

static void draw_points_fitriangle(int x, int y);

static void draw_points_triangle(int x, int y);

static void draw_points_ftriangle(int x, int y);

static void draw_points_plus(int x, int y);

static void draw_points_octo(int x, int y);

static void draw_points_focto(int x, int y);

static void draw_points_x(int x, int y);

static int R__curx, R__cury;

static int grass_yoffset;

static int grass_xoffset;

static int y_max;

static int points_buf_x[PNT_SIZE*PNT_SIZE]; /* for filled point types */

static int points_buf_y[PNT_SIZE*PNT_SIZE];

extern int R_move_abs ();

extern int R_cont_abs ();

TERM_PUBLIC void

GRASS_move(unsigned int x, unsigned int y)

{

/* R_move_abs (grass_xoffset+x, grass_yoffset-y + y_max); */

R_move_abs (grass_xoffset+x, grass_yoffset-y);

}

static void

cont_abs(int x, int y)

{

/* R_cont_abs (grass_xoffset+x, grass_xoffset-y + y_max); */

R_cont_abs (grass_xoffset+x, grass_yoffset-y);

}

TERM_PUBLIC void

GRASS_options()

{

options_null (); /* no options to begin with */

}

TERM_PUBLIC void

GRASS_init()

{

/* char buff[128]; */

char window_name[64];

float size = 3.0;

/* int backcolor; */

int dots_per_line;

int top, b, l, r;

/* int textcolor; */

struct termentry *t = term;

extern int G_gisinit();

extern int R_open_driver();

extern int D_setup();

extern int D_get_cur_wind();

extern int G_fatal_error();

extern int D_set_cur_wind();

extern int D_get_screen_window();

extern int R_set_window();

extern int R_text_size();

extern int R_font();

extern int R_screen_top();

extern int R_screen_bot();

extern int D_erase_window();

G_gisinit ("g.gnuplot");

R_open_driver ();

D_setup (0);

if (D_get_cur_wind (window_name))

G_fatal_error ("No current window");

if (D_set_cur_wind (window_name))

G_fatal_error ("Current window not available");

/* Set up the screen, conversions, and graphics */

D_get_screen_window (&top, &b, &l, &r);

/* D_set_overlay_mode (1); */

/* Figure out where to put text */

R_set_window (top, b, l, r);

t->xmax = r-l;

t->ymax = b-top;

grass_xoffset=l;

grass_yoffset=b;

dots_per_line = (int) (size / 100.0 * (float) (t->ymax));

t->v_char = t->h_char = (int) (.8 * (float) dots_per_line);

R_text_size (t->h_char, t->v_char);

R_font("romans");

t->v_tic = t->h_tic = 4;

y_max = t->ymax; /* kludge? */

R__curx = R_screen_top ();

R__cury = R_screen_bot () + grass_yoffset;

D_erase_window();

fprintf(stderr,"**********************************************\n");

fprintf(stderr,"DIAGNOSTIC TERMINAL SETUP\n");

fprintf(stderr,"top = %d\tb = %d\tl = %d\tr = %d\n", top,b,l,r);

fprintf(stderr,"name = %s\n", t->name);

fprintf(stderr,"description = %s\n", t->description);

fprintf(stderr,"xmax = %d\t", (int)t->xmax);

fprintf(stderr,"ymax = %d\n", (int)t->ymax);

fprintf(stderr,"v_char = %d\t", (int)t->v_char);

fprintf(stderr,"h_char = %d\n", (int)t->h_char);

fprintf(stderr,"v_tic = %d\t", (int)t->v_tic);

fprintf(stderr,"h_tic = %d\n", (int)t->h_tic);

fprintf(stderr,"**********************************************\n\n");

}

TERM_PUBLIC void

GRASS_reset ()

{

extern int R_standard_color();

extern int D_translate_color();

extern int R_flush();

extern int R_stabilize();

extern int R_close_driver();

R_standard_color (D_translate_color ("black"));

/* D_erase_window(); .* don't clear after g.gnuplot is finished */

R_flush ();

R_stabilize ();

R_close_driver ();

}

TERM_PUBLIC void

GRASS_graphics ()

{

extern int D_erase_window();

extern int R_flush();

extern int R_stabilize();

extern int R_standard_color();

extern int D_translate_color();

R_flush ();

R_stabilize ();

R_standard_color (D_translate_color ("black"));

D_erase_window();

return;

}

TERM_PUBLIC void

GRASS_text ()

{

extern int R_flush ();

extern int R_stabilize ();

R_flush ();

R_stabilize ();

return; /* device can't be used as a terminal */

}

TERM_PUBLIC void

GRASS_vector(unsigned int x, unsigned int y)

{

extern int R_flush ();

extern int R_stabilize ();

cont_abs (x, y);

R_flush ();

R_stabilize ();

}

TERM_PUBLIC void

GRASS_linetype(int lt)

{

extern int R_standard_color();

extern int D_translate_color();

extern int R_flush ();

extern int R_stabilize ();

while (lt > 10) lt-=10;

if (lt <= LT_BLACK)

R_standard_color (D_translate_color ("gray"));

else if (lt == LT_AXIS)

R_standard_color (D_translate_color ("white"));

else if (lt == 0)

R_standard_color (D_translate_color ("red"));

else if (lt == 1)

R_standard_color (D_translate_color ("green"));

else if (lt == 2)

R_standard_color (D_translate_color ("magenta"));

else if (lt == 3)

R_standard_color (D_translate_color ("brown"));

else if (lt == 4)

R_standard_color (D_translate_color ("orange"));

else if (lt == 5)

R_standard_color (D_translate_color ("yellow"));

else if (lt == 6)

R_standard_color (D_translate_color ("blue"));

else if (lt == 7)

R_standard_color (D_translate_color ("violet"));

else if (lt == 8)

R_standard_color (D_translate_color ("indigo"));

else if (lt == 9)

R_standard_color (D_translate_color ("gray"));

else /* if (lt == 10) */

R_standard_color (D_translate_color ("white"));

R_flush ();

R_stabilize ();

return;

}

/* originally /usr/grass4/src/display/d.label/cmd/label.c */

TERM_PUBLIC void

GRASS_put_text(unsigned int x, unsigned int y, const char *str)

{

extern int R_text();

extern int R_flush ();

extern int R_stabilize ();

if (strlen (str) == 0)

return;

GRASS_move (x, y);

/* R_standard_color (D_translate_color ("white")); */

R_text (str);

R_flush ();

R_stabilize ();

}

TERM_PUBLIC int

GRASS_text_angle (float ang)

{

extern int R_text_rotation();

R_text_rotation((float)ang);

return TRUE; /* GRASS can (?) rotate text */

}

TERM_PUBLIC int

GRASS_justify_text (enum JUSTIFY mode)

{

return (FALSE); /* don't mess with this now */

}

TERM_PUBLIC void

GRASS_point (unsigned int x, unsigned y, int point)

{

switch (point) {

case TYPE_DOT:

draw_points_dot (x, y);

break;

case TYPE_X:

draw_points_x (x, y);

break;

case TYPE_PLUS:

draw_points_plus (x, y);

break;

case TYPE_BOX:

draw_points_box (x, y);

break;

case TYPE_DIAMOND:

draw_points_diamond (x, y);

break;

case TYPE_TRIANGLE:

draw_points_triangle (x, y);

break;

case TYPE_OCTO:

draw_points_octo (x, y);

break;

case TYPE_ITRIANGLE:

draw_points_itriangle (x, y);

break;

case TYPE_FBOX:

draw_points_fbox (x, y);

break;

case TYPE_FTRIANGLE:

draw_points_ftriangle (x, y);

break;

case TYPE_FITRIANGLE:

draw_points_fitriangle (x, y);

break;

case TYPE_FOCTO:

draw_points_focto (x, y);

break;

}

/* modified from /usr/grass4/src/display/d.points/cmd/main.c */

static void

draw_points_dot(int x, int y)

{

GRASS_move (x, y);

cont_abs (x, y);

}

static void

draw_points_diamond(int x, int y)

{

GRASS_move (x, y + PNT_SIZE);

GRASS_vector (x + PNT_SIZE, y);

GRASS_vector (x, y - PNT_SIZE);

GRASS_vector (x - PNT_SIZE, y);

GRASS_vector (x, y + PNT_SIZE);

}

static void

draw_points_box(int x, int y)

{

GRASS_move (x - PNT_SIZE, y - PNT_SIZE);

GRASS_vector (x - PNT_SIZE, y + PNT_SIZE);

GRASS_vector (x + PNT_SIZE, y + PNT_SIZE);

GRASS_vector (x + PNT_SIZE, y - PNT_SIZE);

GRASS_vector (x - PNT_SIZE, y - PNT_SIZE);

}

static void

draw_points_fbox(int x, int y)

{

int R_polygon_abs();

points_buf_x[0] = grass_xoffset + x - PNT_SIZE;

points_buf_y[0]= grass_yoffset - (y + PNT_SIZE);

points_buf_x[1] = grass_xoffset + x + PNT_SIZE;

points_buf_y[1]= grass_yoffset - (y + PNT_SIZE);

points_buf_x[2] = grass_xoffset + x + PNT_SIZE;

points_buf_y[2]= grass_yoffset - (y - PNT_SIZE);

points_buf_x[3] = grass_xoffset + x - PNT_SIZE;

points_buf_y[3]= grass_yoffset - (y - PNT_SIZE);

R_polygon_abs(points_buf_x, points_buf_y, 4 );

}

static void

draw_points_itriangle(int x, int y)

{

GRASS_move (x - PNT_SIZE, y + PNT_SIZE);

GRASS_vector (x + PNT_SIZE, y + PNT_SIZE);

GRASS_vector (x , y - PNT_SIZE);

GRASS_vector (x - PNT_SIZE, y + PNT_SIZE);

}

static void

draw_points_fitriangle(int x, int y)

{

int R_polygon_abs();

points_buf_x[0] = grass_xoffset + x + PNT_SIZE;

points_buf_y[0] = grass_yoffset - (y + PNT_SIZE);

points_buf_x[1] = grass_xoffset + x ;

points_buf_y[1] = grass_yoffset - (y - PNT_SIZE);

points_buf_x[2] = grass_xoffset + x - PNT_SIZE;

points_buf_y[2] = grass_yoffset - (y + PNT_SIZE);

R_polygon_abs(points_buf_x, points_buf_y, 3 );

}

static void

draw_points_triangle(int x, int y)

{

GRASS_move (x - PNT_SIZE, y - PNT_SIZE);

GRASS_vector (x , y + PNT_SIZE);

GRASS_vector (x + PNT_SIZE, y - PNT_SIZE);

GRASS_vector (x - PNT_SIZE, y - PNT_SIZE);

}

static void

draw_points_ftriangle(int x, int y)

{

int R_polygon_abs();

points_buf_x[0] = grass_xoffset + x;

points_buf_y[0]= grass_yoffset - (y + PNT_SIZE);

points_buf_x[1] = grass_xoffset + x + PNT_SIZE;

points_buf_y[1]= grass_yoffset - (y - PNT_SIZE);

points_buf_x[2] = grass_xoffset + x - PNT_SIZE;

points_buf_y[2]= grass_yoffset - (y - PNT_SIZE);

R_polygon_abs(points_buf_x, points_buf_y, 3 );

}

static void

draw_points_plus(int x, int y)

{

GRASS_move (x - PNT_SIZE, y);

GRASS_vector (x + PNT_SIZE, y);

GRASS_move (x, y - PNT_SIZE);

GRASS_vector (x, y + PNT_SIZE);

}

/* depends on PNT_SIZE */

static void

draw_points_octo(int x, int y)

{

/* CCW */

GRASS_move (x - (int) (PNT_SIZE/3), y - PNT_SIZE); /* 1 */

GRASS_vector (x + (int) (PNT_SIZE/3), y - PNT_SIZE); /* 2 */

GRASS_vector (x + PNT_SIZE, y - (int) (PNT_SIZE/3)); /* 3 */

GRASS_vector (x + PNT_SIZE, y + (int) (PNT_SIZE/3)); /* 4 */

GRASS_vector (x + (int) (PNT_SIZE/3), y + PNT_SIZE); /* 5 */

GRASS_vector (x - (int) (PNT_SIZE/3), y + PNT_SIZE); /* 6 */

GRASS_vector (x - PNT_SIZE, y + (int) (PNT_SIZE/3)); /* 7 */

GRASS_vector (x - PNT_SIZE, y - (int) (PNT_SIZE/3)); /* 8 */

GRASS_vector (x - (int) (PNT_SIZE/3), y - PNT_SIZE); /* 1 */

}

/* depends on PNT_SIZE */

static void

draw_points_focto(int x, int y)

{

int R_polygon_abs();

/* CCW */

points_buf_x[0] = grass_xoffset + x + (int) (PNT_SIZE/3);

points_buf_y[0] = grass_yoffset - (y - PNT_SIZE);

points_buf_x[1] = grass_xoffset + x + PNT_SIZE;

points_buf_y[1] = grass_yoffset - (y - (int) (PNT_SIZE/3));

points_buf_x[2] = grass_xoffset + x + PNT_SIZE;

points_buf_y[2] = grass_yoffset - (y + (int) (PNT_SIZE/3));

points_buf_x[3] = grass_xoffset + x + (int) (PNT_SIZE/3);

points_buf_y[3] = grass_yoffset - (y + PNT_SIZE);

points_buf_x[4] = grass_xoffset + x - (int) (PNT_SIZE/3);

points_buf_y[4] = grass_yoffset - (y + PNT_SIZE);

points_buf_x[5] = grass_xoffset + x - PNT_SIZE;

points_buf_y[5] = grass_yoffset - (y + (int) (PNT_SIZE/3));

points_buf_x[6] = grass_xoffset + x - PNT_SIZE;

points_buf_y[6] = grass_yoffset - (y - (int) (PNT_SIZE/3));

points_buf_x[7] = grass_xoffset + x - (int) (PNT_SIZE/3);

points_buf_y[7] = grass_yoffset - (y - PNT_SIZE);

R_polygon_abs(points_buf_x, points_buf_y, 8 );

}

static void

draw_points_x(int x, int y)

{

GRASS_move (x - PNT_SIZE, y - PNT_SIZE);

GRASS_vector (x + PNT_SIZE, y + PNT_SIZE);

GRASS_move (x + PNT_SIZE, y - PNT_SIZE);

GRASS_vector (x - PNT_SIZE, y + PNT_SIZE);

}

TERM_PUBLIC int

GRASS_set_font(const char *font)

{

char name[32];

int size,sep, R_font();

struct termentry *t = term;

int R_text_size (), dots_per_line;

/* G_warning(font); */

sep=strcspn(font,",");

strncpy(name,font,sep); name[sep]=NUL;

sscanf (&(font[sep+1]),"%d",&size);

if (size==0)

size=3;

dots_per_line = (int) (size / 100.0 * (float) (t->ymax));

t->v_char = t->h_char = (int) (.8 * (float) dots_per_line);

R_text_size (t->h_char, t->v_char);

/* cyrilc,gothgbt,gothgrt,gothitt,greekc,greekcs,greekp,

greeks,italicc,italiccs,italict,romanc,romancs,romand,

romans,romant,scriptc,scripts */

if (strlen(name) > 5 )

R_font(name);

else

R_font("romans");

return TRUE;

}

#endif /* TERM_BODY */

#ifdef TERM_TABLE

TERM_TABLE_START(grass_driver)

"grass", "GRASS Graphics Monitor",

GRASS_XMAX, GRASS_YMAX, GRASS_VCHAR, GRASS_HCHAR,

GRASS_VTIC, GRASS_HTIC, GRASS_options, GRASS_init, GRASS_reset,

GRASS_text, null_scale, GRASS_graphics, GRASS_move, GRASS_vector,

GRASS_linetype, GRASS_put_text, GRASS_text_angle,

GRASS_justify_text, GRASS_point, do_arrow, GRASS_set_font

TERM_TABLE_END(grass_driver)

#undef LAST_TERM

#define LAST_TERM grass_driver

#endif /* TERM_TABLE */

#endif /* TERM_PROTO_ONLY */

#ifdef TERM_HELP

START_HELP(grass)

"1 grass",

"?commands set terminal grass",

"?set terminal grass",

"?set term grass",

"?terminal grass",

"?term grass",

"?grass",

" Note: legacy terminal.",

" The `grass` terminal driver gives `gnuplot` capabilities to users of the ",

" GRASS geographic information system. Contact grassp-list@moon.cecer.army.mil",

" for more information. Pages are written to the current frame of the GRASS",

" Graphics Window. There are no options."

END_HELP(grass)

#endif

gnuplot/term/grass.trm at master · gnuplot/gnuplot · GitHub

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