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grass.trm
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1999-01-14
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/*[
* GNUPLOT - grass.trm
* $Id: grass.trm,v
*-
* Copyright (C) 1992-1995, 1999. James Darrell McCauley
*
* 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 __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC void GRASS_options __PROTO((void));
TERM_PUBLIC void GRASS_init __PROTO((void));
TERM_PUBLIC void GRASS_reset __PROTO((void));
TERM_PUBLIC void GRASS_graphics __PROTO((void));
TERM_PUBLIC void GRASS_text __PROTO((void));
TERM_PUBLIC void GRASS_vector __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC void GRASS_linetype __PROTO((int lt));
TERM_PUBLIC void GRASS_put_text __PROTO((unsigned int x, unsigned int y, char *str));
TERM_PUBLIC int GRASS_text_angle __PROTO((int ang));
TERM_PUBLIC int GRASS_justify_text __PROTO((enum JUSTIFY mode));
TERM_PUBLIC void GRASS_point __PROTO((unsigned int x, unsigned int y, int point));
TERM_PUBLIC int GRASS_set_font __PROTO((char *font));
/* TERM_PUBLIC void GRASS_set_pointsize __PROTO((double size)); */
TERM_PUBLIC void GRASS_arrow __PROTO((unsigned int sx, unsigned int sy, unsigned int ex, unsigned int ey, int head));
#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 __PROTO((int x, int y));
static void draw_points_dot __PROTO((int x, int y));
static void draw_points_diamond __PROTO((int x, int y));
static void draw_points_box __PROTO((int x, int y));
static void draw_points_fbox __PROTO((int x, int y));
static void draw_points_itriangle __PROTO((int x, int y));
static void draw_points_fitriangle __PROTO((int x, int y));
static void draw_points_triangle __PROTO((int x, int y));
static void draw_points_ftriangle __PROTO((int x, int y));
static void draw_points_plus __PROTO((int x, int y));
static void draw_points_octo __PROTO((int x, int y));
static void draw_points_focto __PROTO((int x, int y));
static void draw_points_x __PROTO((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];
TERM_PUBLIC void GRASS_move (x, y)
unsigned int x, y;
{
int R_move_abs ();
/* R_move_abs (grass_xoffset+x, grass_yoffset-y + y_max); */
R_move_abs (grass_xoffset+x, grass_yoffset-y);
}
static void cont_abs (x, y)
int x, y;
{
int R_cont_abs ();
/* 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;
int G_gisinit();
int R_open_driver();
int D_setup();
int D_get_cur_wind();
int G_fatal_error();
int D_set_cur_wind();
int D_get_screen_window();
int R_set_window();
int R_text_size();
int R_font();
int R_screen_top();
int R_screen_bot();
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 ()
{
int R_standard_color();
int D_translate_color();
int R_flush();
int R_stabilize();
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 ()
{
int D_erase_window();
int R_flush();
int R_stabilize();
int R_standard_color();
int D_translate_color();
R_flush ();
R_stabilize ();
R_standard_color (D_translate_color ("black"));
D_erase_window();
return;
}
TERM_PUBLIC void GRASS_text ()
{
int R_flush ();
int R_stabilize ();
R_flush ();
R_stabilize ();
return; /* device can't be used as a terminal */
}
TERM_PUBLIC void GRASS_vector (x, y)
unsigned int x, y;
{
int R_flush ();
int R_stabilize ();
cont_abs (x, y);
R_flush ();
R_stabilize ();
}
TERM_PUBLIC void GRASS_linetype (lt)
int lt;
{
int R_standard_color();
int D_translate_color();
int R_flush ();
int R_stabilize ();
while (lt > 10) lt-=10;
if (lt <= -2)
R_standard_color (D_translate_color ("gray"));
else if (lt == -1)
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 (x, y, str)
unsigned int x, y;
char *str;
{
int R_text();
int R_flush ();
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 (ang)
int ang;
{
int R_text_rotation();
R_text_rotation((float)ang);
return TRUE; /* GRASS can (?) rotate text */
}
TERM_PUBLIC int GRASS_justify_text (mode)
enum JUSTIFY mode;
{
return (FALSE); /* don't mess with this now */
}
TERM_PUBLIC void GRASS_point (x, y, point)
unsigned int x,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 (x, y)
int x, y;
{
GRASS_move (x, y);
cont_abs (x, y);
}
static void draw_points_diamond (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x, 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 (x, y)
int x,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 (font)
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;
}
#ifdef GRASS_POINTSIZE
TERM_PUBLIC void GRASS_set_pointsize (size));
double *size;
{
return;
}
#endif /* GRASS_POINTSIZE */
/* need to fix */
TERM_PUBLIC void GRASS_arrow (sx, sy, ex, ey, head)
unsigned int sx, sy, ex, ey;
int head;
{
do_arrow (sx, sy, ex, ey, 1);
return;
}
#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, GRASS_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",
" 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