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/*
* HPGL Output
*
* Tom Quarles
*/
#define MAPX(state,x) ( (x) + P1X + state->clipminX )
#define MAPY(state,y) ( MAXY - (y) + P1Y - state->clipminY)
#include <stdlib.h>
#include <string.h>
#include "copyright.h"
#include "xgout.h"
#include "plotter.h"
#include <stdio.h>
#include <math.h>
#define MAX(a,b) ( ((a)>(b)) ? (a) : (b) )
#define MIN(a,b) ( ((a)<(b)) ? (a) : (b) )
/* char *malloc(); */
static void hpglText();
static void hpglSeg();
static void hpglDot();
static void hpglEnd();
static xgOut hpglInfo = {
D_COLOR, /* device characteristics */
MAXX, /* width */
MAXY, /* height */
200, /* border padding */
0, /* extra space around axis labels */
250, /* tick length - approx 1/4 inch */
50, /* spacing above legend lables */
0, /* axis font width */
0, /* axis font height */
0, /* title font width */
0, /* title font height */
1000000,/* maximum number of segments */
hpglText, /* text output function */
hpglSeg, /* segment drawing function */
hpglDot, /* dot/marker drawing function */
hpglEnd, /* end of plot function */
NULL, /* userInfo */
};
typedef struct {
double axis_w;
double axis_h;
double title_w;
double title_h;
FILE *plotterFile;
int clipminX;
int clipminY;
int clipmaxX;
int clipmaxY;
} mydata;
/*ARGSUSED*/
int
hpglInit(stream,width,height,title_family, title_size,
axis_family, axis_size, flags, outInfo,errmsg)
FILE *stream; /* output stream */
int width; /* desired width of space in microns */
int height; /* desired height in microns */
char *title_family; /* name of font for titles */
double title_size; /* size of font for titles */
char *axis_family; /* name of font for axes */
double axis_size; /* size of font for axes */
int flags; /* predicate values (ignored) */
xgOut *outInfo; /* my structure */
char errmsg[ERRBUFSIZE]; /* a place to complain to */
{
mydata *myInfo;
myInfo = (mydata*)malloc(sizeof(mydata));
if(myInfo == NULL) return(0);
*outInfo = hpglInfo;
outInfo->area_w = MIN(MAXX,width/25);
outInfo->area_h = MIN(MAXY,height/25);
/* magic formulas: input sizes are in points = 1/72 inch */
/* my sizes are in cm */
/* plotter units are in units of .025mm ~= 1/1016 inch */
/* have to warn of height 1.5 times larger or get bitten by
plotter's internal padding */
/* widths are (arbitrarily) selected to be 2/3 of the height */
/* (cancels with width factor) */
myInfo->axis_w = axis_size * .666 * 2.54/72.;
myInfo->axis_h = axis_size * 2.54/72.;
myInfo->title_w = title_size * .666 * 2.54/72.;
myInfo->title_h = title_size * 2.54/72.;
outInfo->axis_pad = axis_size*1016.*1.5/72.;
outInfo->axis_width = axis_size*1016.*1.5/72.;
outInfo->axis_height = axis_size*1016.*.666/72.;
outInfo->title_width = title_size*1016.*1.5/72.;
outInfo->title_height = title_size*1016.*.666/72.;
outInfo->user_state = (char *)myInfo;
myInfo->plotterFile = stream;
myInfo->clipminX = 0;
myInfo->clipminY = 0;
myInfo->clipmaxX = MAXX;
myInfo->clipmaxY = MAXY;
fprintf(myInfo->plotterFile,"PG;IN;\n");
fprintf(myInfo->plotterFile,"DI1,0;\n");
fprintf(myInfo->plotterFile,"IW%d,%d,%d,%d;\n",MAPX(myInfo,0),
MAPY(myInfo,myInfo->clipmaxY-myInfo->clipminY),
MAPX(myInfo,myInfo->clipmaxX-myInfo->clipminX),
MAPY(myInfo,0));
return(1);
}
static void
hpglText(userState,x,y,text,just,style)
mydata *userState; /* my state information */
int x,y; /* coords of text origin */
char *text; /* what to put there */
int just; /* how to justify */
/* where the origin is relative to where the text should go
* as a function of the various values of just
T_UPPERLEFT T_TOP T_UPPERRIGHT
T_LEFT T_CENTER T_RIGHT
T_LOWERLEFT T_BOTTOM T_LOWERRIGHT
*/
int style; /* T_AXIS = axis font, T_TITLE = title font */
{
fprintf(userState->plotterFile,"PU;SP%d;",TEXTCOLOR);
fprintf(userState->plotterFile,"PA%d,%d;",MAPX(userState,x),MAPY(userState,y));
switch(style) {
case T_AXIS:
fprintf(userState->plotterFile,"SI%f,%f;",userState->axis_w,userState->axis_h);
break;
case T_TITLE:
fprintf(userState->plotterFile,"SI%f,%f;",userState->title_w,userState->title_h);
break;
default:
printf("bad text style %d in hpglText\n",style);
exit(1);
break;
}
switch(just) {
case T_UPPERLEFT:
fprintf(userState->plotterFile,"LO3;\n");
break;
case T_TOP:
fprintf(userState->plotterFile,"LO6;\n");
break;
case T_UPPERRIGHT:
fprintf(userState->plotterFile,"LO9;\n");
break;
case T_LEFT:
fprintf(userState->plotterFile,"LO2;\n");
break;
case T_CENTER:
fprintf(userState->plotterFile,"LO5;\n");
break;
case T_RIGHT:
fprintf(userState->plotterFile,"LO8;\n");
break;
case T_LOWERLEFT:
fprintf(userState->plotterFile,"LO1;\n");
break;
case T_BOTTOM:
fprintf(userState->plotterFile,"LO4;\n");
break;
case T_LOWERRIGHT:
fprintf(userState->plotterFile,"LO7;\n");
break;
default:
printf("bad justification type %d in hpglText\n",just);
exit(1);
break;
}
fprintf(userState->plotterFile,"LB%s\03;",text);
}
static int penselect[8] = { PEN1, PEN2, PEN3, PEN4, PEN5, PEN6, PEN7, PEN8};
static int lineselect[8] = { LINE1, LINE2, LINE3, LINE4, LINE5, LINE6,
LINE7, LINE8};
static void
hpglSeg(userState,ns,segs,width,style,lappr,color)
mydata *userState; /* my state information (not used) */
int ns; /* number of segments */
XSegment *segs; /* X array of segments */
int width; /* width of lines in pixels */
int style; /* L_VAR = dotted, L_AXIS = grid, L_ZERO = axis*/
int lappr; /* line style */
int color; /* line color */
{
int i;
if (style == L_ZERO) {
fprintf(userState->plotterFile,"SP%d;",PENAXIS); /* select correct pen */
fprintf(userState->plotterFile,"LT;"); /* solid line style */
} else if (style == L_AXIS) {
fprintf(userState->plotterFile,"SP%d;",PENGRID); /* select correct pen */
fprintf(userState->plotterFile,"LT;"); /* solid line style */
} else if (style == L_VAR) {
if( (color < 0) || (color >7) ) {
printf("out of range line color %d in hpglLine\n",color);
exit(1);
}
fprintf(userState->plotterFile,"SP%d;",penselect[color]); /* select correct pen */
if( (lappr < 0) || (lappr >7) ) {
printf("out of range line style %d in hpglLine\n",lappr);
exit(1);
}
if(lappr == 0) {
fprintf(userState->plotterFile,"LT;");/*select solid line type*/
} else {
fprintf(userState->plotterFile,"LT%d;",lineselect[lappr]);/*select line type*/
}
} else {
printf("unknown style %d in hpglLine\n",style);
exit(1);
}
for(i=0;i<ns;i++) {
if(!i || ( (segs[i].x1!=segs[i-1].x2) || (segs[i].y1!=segs[i-1].y2) ) ){
/* MOVE */
fprintf(userState->plotterFile,"PU;PA%d,%d;\n",MAPX(userState,segs[i].x1),
MAPY(userState,segs[i].y1));
}
/* DRAW */
if(width <= 1) {
fprintf(userState->plotterFile,"PD;PA%d,%d;\n",MAPX(userState,segs[i].x2),
MAPY(userState,segs[i].y2));
} else { /* ugly - wide lines -> rectangles */
double frac;
int lx,ly;
int urx,ury,ulx,uly,llx,lly,lrx,lry;
frac = (width/2)/sqrt((double)
((segs[i].x1-segs[i].x2)*
(segs[i].x1-segs[i].x2))+
((segs[i].y1-segs[i].y2)*
(segs[i].y1-segs[i].y2)) );
lx = frac * (segs[i].y2 - segs[i].y1);
ly = -frac * (segs[i].x2 - segs[i].x1);
urx = segs[i].x2 +lx;
ury = segs[i].y2 +ly;
ulx = segs[i].x2 -lx;
uly = segs[i].y2 -ly;
llx = segs[i].x1 -lx;
lly = segs[i].y1 -ly;
lrx = segs[i].x1 +lx;
lry = segs[i].y1 +ly;
fprintf(userState->plotterFile,"PU;PA%d,%d;",MAPX(userState,llx),
MAPY(userState,lly));
fprintf(userState->plotterFile,"PM0;");
fprintf(userState->plotterFile,"PD,PA%d,%d;PA%d,%d;PA%d,%d;\n",
MAPX(userState,lrx),MAPY(userState,lry),
MAPX(userState,urx),MAPY(userState,ury),
MAPX(userState,ulx),MAPY(userState,uly) );
fprintf(userState->plotterFile,"PM2;FP;EP;");
}
}
fprintf(userState->plotterFile,"PU;");
}
static char *markselect[8] = { MARK1, MARK2, MARK3, MARK4, MARK5, MARK6,
MARK7, MARK8};
static void
hpglDot(userState,x,y,style,type,color)
mydata *userState; /* my state information (not used) */
int x,y; /* coord of dot */
int style; /* type of dot */
int type; /* dot style variation */
int color; /* color of dot */
{
/* move to given coord */
fprintf(userState->plotterFile,"PU;PA%d,%d;\n",MAPX(userState,x), MAPY(userState,y));
if( (color<0) || (color>7) ) {
printf("unknown color %d in hpglDot\n",color);
exit(1);
}
fprintf(userState->plotterFile,"SP%d;",penselect[color]);
if(style == P_PIXEL) {
fprintf(userState->plotterFile,"PD;PU;\n");
} else if (style == P_DOT) {
fprintf(userState->plotterFile,"LT;PM0;CI40;PM2;FT;EP;\n");
} else if (style == P_MARK) {
if( (type<0) || (type>7) ) {
printf("unknown marker type %d in hpglDot\n",type);
exit(1);
}
/*fprintf(userState->plotterFile,"LT;CA5;LO4;SI0.1;LB%s\03;\n",markselect[type]);*/
fprintf(userState->plotterFile,"LT;CS5;LO4;SI0.15;SM%s;PR0,0;SM;CS;\n",markselect[type]);
} else {
printf("unknown marker style %d in hpglDot\n",style);
exit(1);
}
}
static void
hpglEnd(userState)
mydata *userState; /* my state information (not used) */
{
fprintf(userState->plotterFile,"SP;PG;IN;\n");
fflush(userState->plotterFile);
return;
}
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