/*
* $Id: dxf.trm,v 1.15 1998/04/14 00:17:37 drd Exp $
*
*/
/* GNUPLOT - dxf.trm */
/*[
* Copyright 1991 - 1993, 1998
*
* 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 supports:
* AutoCad (Release 10.x) dxf file format (import with AutoCad dxfin command)
*
*
* AUTHOR
* Florian Hiss (fhis1231@w204zrz.zrz.tu-berlin.de)
*
* send your comments or suggestions to (info-gnuplot@dartmouth.edu).
*/
/*
* adapted to the new terminal layout by Stefan Bodewig (Dec. 1995)
*/
#include "driver.h"
#ifdef TERM_REGISTER
register_term(dxf)
#endif
#ifdef TERM_PROTO
TERM_PUBLIC void DXF_init __PROTO((void));
TERM_PUBLIC void DXF_graphics __PROTO((void));
TERM_PUBLIC void DXF_text __PROTO((void));
TERM_PUBLIC void DXF_linetype __PROTO((int linetype));
TERM_PUBLIC void DXF_move __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC void DXF_vector __PROTO((unsigned int ux, unsigned int uy));
TERM_PUBLIC void DXF_put_text __PROTO((unsigned int x, unsigned int y,
char str[]));
TERM_PUBLIC int DXF_text_angle __PROTO((int ang));
TERM_PUBLIC int DXF_justify_text __PROTO((enum JUSTIFY mode));
TERM_PUBLIC void DXF_reset __PROTO((void));
#define DXF_XMAX (120.0 * DXF_UNIT)
#define DXF_YMAX (80.0 * DXF_UNIT)
#define DXF_HTIC (0.01 * DXF_XMAX) /* 1.0 percent */
#define DXF_VTIC (0.01 * DXF_YMAX) /* 1.0 percent */
#define DXF_HCHAR (0.014 * DXF_XMAX) /* 1.4 percent */
#define DXF_VCHAR (0.026 * DXF_YMAX) /* 2.6 percent */
#endif /* TERM_PROTO */
#ifndef TERM_PROTO_ONLY
#ifdef TERM_BODY
#define DXF_UNIT 60.0
#define LINEWIDTH 0.0351 /* default line width is 1 pt */
/* 120 (autocad units) wide by 80 (autocad units) high (default)
* use the GNUPLOT 'set size' command to change the defaults */
/* actual text height */
#define DXF_TEXTHEIGHT (0.7 * DXF_VCHAR)
/* actual text width, only a guess, we don't know the width of
* a character of given height of the AutoCad STANDARD text font,
* so change it if you like */
#define DXF_TEXTWIDTH (0.7 * DXF_HCHAR)
/* number of line types we support. see below */
#define DXF_LINE_TYPES 7
/* number of layers used for the drawing. see below */
#define MAX_LAYER 7
/* line type scaling */
#define LT_SCALE 1
static unsigned int DXF_posx;
static unsigned int DXF_posy;
/* linetype is mapped to a layer. see below. */
static unsigned int dxf_linetype;
enum JUSTIFY dxf_justify = LEFT;
static float dxf_angle = 0.0; /* either 0 (horizontal) or 90.0 (vertical) */
/* text style used in the entire drawing */
static char *text_style = "STANDARD";
/* text always resides on layer 0 */
#define TEXT_LAYER 0
/* each linetype resides on its own layer. each layer has its own color.
* this avoids difficulties that AutoCad has with proper scaling of
* the linetypes.
* change the colors according to your needs */
static char *layer_name[] ={ "0", "1", "2", "3", "4", "5", "6" };
/* the colours are white, red, yellow, green, cyan, blue, magenta.
* change them according to your needs.
* when using a black and white plotting device the colours map to different
* line thicknesses. see description of AutoCad print / plot command */
static char *layer_colour[] = { "7", "1", "2", "3", "4", "5", "6" };
/* support line types AutoCad has to offer by default. */
static char *layer_lines[] = { "CONTINUOUS", "DASHED", "HIDDEN", "CENTER",
"PHANTOM", "DOT", "DASHDOT" };
static TBOOLEAN vector_was_last = FALSE;
TERM_PUBLIC void DXF_init()
{
DXF_posx = DXF_posy = 0;
dxf_linetype = 0;
dxf_angle = 0.0;
vector_was_last = FALSE;
}
TERM_PUBLIC void DXF_graphics()
{
register struct termentry *t = term;
int i;
static char GPFAR dxfi1[] = "\
999\n\
%% GNUPLOT: dxf file for AutoCad\n\
0\nSECTION\n 2\nHEADER\n\
9\n$EXTMIN\n\
10\n0.000\n 20\n0.000\n\
9\n$EXTMAX\n\
10\n%-6.3f\n 20\n%-6.3f\n\
9\n$LIMMIN\n\
10\n0.000\n 20\n0.000\n\
9\n$LIMMAX\n\
10\n%-6.3f\n 20\n%-6.3f\n\
9\n$TEXTSTYLE\n 7\n%s\n\
9\n$TEXTSIZE\n 40\n%-6.3f\n\
9\n$PLINEWID\n 40\n%-6.4f\n\
9\n$LTSCALE\n 40\n%-6.3f\n\
9\n$COORDS\n 70\n 1\n\
9\n$CELTYPE\n 6\nBYLAYER\n\
9\n$CLAYER\n 8\n0\n\
9\n$CECOLOR\n 62\n %s\n\
9\n$MENU\n 1\nacad\n\
0\nENDSEC\n\
0\nSECTION\n 2\nTABLES\n";
static char GPFAR dxfi2[] = "\
0\nTABLE\n 2\nLTYPE\n 70\n %d\n\
0\nLTYPE\n 2\nCONTINUOUS\n 70\n 64\n\
3\nSolid line\n 72\n 65\n 73\n 0\n 40\n0.0\n\
0\nLTYPE\n 2\nDASHED\n 70\n 64\n\
3\n__ __ __ __ __ __ __ __ __ __ __ __ __ __ __\n\
72\n 65\n 73\n 2\n 40\n0.75\n 49\n0.5\n 49\n-0.25\n\
0\nLTYPE\n 2\nHIDDEN\n 70\n 64\n\
3\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\n\
72\n 65\n 73\n 2\n 40\n0.375\n 49\n0.25\n 49\n-0.125\n\
0\nLTYPE\n 2\nCENTER\n 70\n 64\n\
3\n____ _ ____ _ ____ _ ____ _ ____ _ ____ _ ____\n\
72\n 65\n 73\n 4\n 40\n2.0\n 49\n1.25\n 49\n-0.25\n\
49\n0.25\n 49\n-0.25\n\
0\nLTYPE\n 2\nPHANTOM\n 70\n 64\n\
3\n_____ _ _ _____ _ _ _____ _ _ _____ _ _ ____\n\
72\n 65\n 73\n 6\n 40\n2.5\n 49\n1.25\n\
49\n-0.25\n 49\n0.25\n 49\n-0.25\n 49\n0.25\n 49\n-0.25\n\
0\nLTYPE\n 2\nDOT\n 70\n 64\n\
3\n...............................................\n\
72\n 65\n 73\n 2\n 40\n0.25\n 49\n0.0\n 49\n-0.25\n\
0\nLTYPE\n 2\nDASHDOT\n 70\n 64\n\
3\n__ . __ . __ . __ . __ . __ . __ . __ . __ . __\n\
72\n 65\n 73\n 4\n 40\n1.0\n 49\n0.5\n 49\n-0.25\n\
49\n0.0\n 49\n-0.25\n\
0\nENDTAB\n";
fprintf(gpoutfile, dxfi1,
t->xmax / DXF_UNIT, t->ymax / DXF_UNIT,
t->xmax / DXF_UNIT, t->ymax / DXF_UNIT,
text_style,
DXF_TEXTHEIGHT / DXF_UNIT,
LINEWIDTH,
(double) LT_SCALE,
layer_colour[0]);
/* the linetype table */
fprintf(gpoutfile, dxfi2, DXF_LINE_TYPES);
/* the layer table */
fprintf(gpoutfile, " 0\nTABLE\n 2\nLAYER\n 70\n %-d\n", MAX_LAYER);
for (i = 1; i <= MAX_LAYER; i++)
fprintf(gpoutfile, " 0\nLAYER\n 2\n%s\n 70\n 64\n62\n %s\n 6\n%s\n", layer_name[i - 1], layer_colour[i - 1], layer_lines[i - 1]);
/* no blocks for insertion */
/* start the entity section */
fputs(" 0\nENDTAB\n0\nENDSEC\n\
0\nSECTION\n 2\nBLOCKS\n 0\nENDSEC\n\
0\nSECTION\n\
2\nENTITIES\n",
gpoutfile);
}
TERM_PUBLIC void DXF_text()
{
if (vector_was_last)
fputs(" 0\nSEQEND\n", gpoutfile);
fputs(" 0\nENDSEC\n 0\nEOF\n", gpoutfile);
}
TERM_PUBLIC void DXF_linetype(linetype)
int linetype;
{
linetype = ABS(linetype);
linetype = linetype % DXF_LINE_TYPES;
dxf_linetype = linetype;
}
TERM_PUBLIC void DXF_move(x, y)
unsigned int x, y;
{
DXF_posx = x;
DXF_posy = y;
if (vector_was_last)
fputs(" 0\nSEQEND\n", gpoutfile);
vector_was_last = FALSE;
fprintf(gpoutfile, "\
0\nPOLYLINE\n 8\n%s\n 66\n 1\n\
6\n%s\n\
0\nVERTEX\n 8\n%s\n\
6\n%s\n\
10\n%-6.3f\n 20\n%-6.3f\n 30\n0.000\n",
layer_name[dxf_linetype],
layer_lines[dxf_linetype],
layer_name[dxf_linetype],
layer_lines[dxf_linetype],
DXF_posx / DXF_UNIT, DXF_posy / DXF_UNIT);
}
TERM_PUBLIC void DXF_vector(ux, uy)
unsigned int ux, uy;
{
DXF_posx = ux;
DXF_posy = uy;
vector_was_last = TRUE;
fprintf(gpoutfile, "\
0\nVERTEX\n 8\n%s\n\
6\n%s\n\
10\n%-6.3f\n 20\n%-6.3f\n 30\n0.000\n",
layer_name[dxf_linetype],
layer_lines[dxf_linetype],
DXF_posx / DXF_UNIT, DXF_posy / DXF_UNIT);
}
TERM_PUBLIC void DXF_put_text(x, y, str)
unsigned int x, y;
char str[];
{
int stl;
float xleftpos, yleftpos, xrightpos, yrightpos;
/* shut up gcc warnings - SB */
xleftpos = yleftpos = xrightpos = yrightpos = 1.0; /* dummy */
/* ignore empty strings */
if (str[0] == NUL)
return;
stl = 0;
while (str[stl] != NUL)
++stl; /* get string length */
if (vector_was_last)
fputs(" 0\nSEQEND\n", gpoutfile);
vector_was_last = FALSE;
fprintf(gpoutfile, " 0\nTEXT\n 8\n%s\n", layer_name[TEXT_LAYER]);
if (dxf_angle != 90.0) {
switch (dxf_justify) {
case LEFT:
xleftpos = (float) x;
yleftpos = (float) (y - DXF_VCHAR / 4.0);
xrightpos = (float) (x + stl * DXF_TEXTWIDTH);
yrightpos = yleftpos;
break;
case RIGHT:
xleftpos = (float) (x - stl * DXF_TEXTWIDTH);
yleftpos = (float) (y - DXF_VCHAR / 4.0);
xrightpos = (float) x;
yrightpos = yleftpos;
break;
case CENTRE:
xleftpos = (float) (x - stl * DXF_TEXTWIDTH / 2.0);
yleftpos = (float) (y - DXF_VCHAR / 4.0);
xrightpos = (float) x; /* center point */
yrightpos = yleftpos;
break;
}
} else {
switch (dxf_justify) {
case LEFT:
xleftpos = (float) (x + DXF_VCHAR / 4.0);
yleftpos = (float) y;
xrightpos = xleftpos;
yrightpos = (float) (y + stl * DXF_TEXTWIDTH);
break;
case RIGHT:
xleftpos = (float) (x + DXF_VCHAR / 4.0);
yleftpos = (float) (y - stl * DXF_HCHAR);
xrightpos = xleftpos;
yrightpos = (float) y;
break;
case CENTRE:
xleftpos = (float) (x + DXF_VCHAR / 4.0);
yleftpos = (float) (y - stl * DXF_TEXTWIDTH / 2.0);
xrightpos = xleftpos;
yrightpos = (float) y; /* center point */
break;
}
}
fprintf(gpoutfile, "\
10\n%-6.3f\n 20\n%-6.3f\n 30\n0.000\n\
40\n%-6.3f\n 1\n%s\n 50\n%-6.3f\n\
7\n%s\n",
xleftpos / DXF_UNIT, yleftpos / DXF_UNIT,
DXF_TEXTHEIGHT / DXF_UNIT, str, dxf_angle,
text_style);
if (dxf_justify != LEFT) {
fprintf(gpoutfile, " 72\n%d\n\
11\n%-6.3f\n 21\n%-6.3f\n 31\n0.000\n",
dxf_justify,
xrightpos / DXF_UNIT, yrightpos / DXF_UNIT);
}
}
TERM_PUBLIC int DXF_text_angle(ang)
int ang;
{
dxf_angle = 0.0;
if (ang == 1)
dxf_angle = 90.0;
return (TRUE);
}
TERM_PUBLIC int DXF_justify_text(mode)
enum JUSTIFY mode;
{
dxf_justify = mode;
return (TRUE);
}
TERM_PUBLIC void DXF_reset()
{
DXF_posx = DXF_posy = 0;
}
#endif /* TERM_BODY */
#ifdef TERM_TABLE
TERM_TABLE_START(dxf_driver)
"dxf", "dxf-file for AutoCad (default size 120x80)",
DXF_XMAX, DXF_YMAX, DXF_VCHAR, DXF_HCHAR,
DXF_VTIC, DXF_HTIC, options_null, DXF_init, DXF_reset,
DXF_text, null_scale, DXF_graphics, DXF_move, DXF_vector,
DXF_linetype, DXF_put_text, DXF_text_angle,
DXF_justify_text, do_point, do_arrow, set_font_null
TERM_TABLE_END(dxf_driver)
#undef LAST_TERM
#define LAST_TERM dxf_driver
#endif /* TERM_TABLE */
#endif /* TERM_PROTO_ONLY */
#ifdef TERM_HELP
START_HELP(dxf)
"1 dxf",
"?commands set terminal dxf",
"?set terminal dxf",
"?set term dxf",
"?terminal dxf",
"?term dxf",
"?dxf",
" The `dxf` terminal driver creates pictures that can be imported into AutoCad",
" (Release 10.x). It has no options of its own, but some features of its plots",
" may be modified by other means. The default size is 120x80 AutoCad units,",
" which can be changed by `set size`. `dxf` uses seven colors (white, red,",
" yellow, green, cyan, blue and magenta), which can be changed only by",
" modifying the source file. If a black-and-white plotting device is used, the",
" colors are mapped to differing line thicknesses. See the description of the",
" AutoCad print/plot command."
END_HELP(dxf)
#endif /* TERM_HELP */
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