| 1 |
greg |
1.1 |
#ifndef lint |
| 2 |
schorsch |
1.4 |
static const char RCSid[] = "$Id: tgraph.c,v 1.3 2003/07/21 22:30:18 schorsch Exp $"; |
| 3 |
greg |
1.1 |
#endif |
| 4 |
|
|
/* |
| 5 |
|
|
* Routines for tel-a-graph file plotting |
| 6 |
|
|
* |
| 7 |
|
|
* 1/20/85 |
| 8 |
|
|
*/ |
| 9 |
|
|
|
| 10 |
schorsch |
1.2 |
#include <ctype.h> |
| 11 |
|
|
#include <string.h> |
| 12 |
|
|
|
| 13 |
greg |
1.1 |
#include "tgraph.h" |
| 14 |
|
|
|
| 15 |
|
|
|
| 16 |
|
|
#define isfloat(a) (isdigit(a) || (a) == '-' || (a) == '.' || \ |
| 17 |
|
|
(a) == 'E' || (a) == '+' || (a) == 'e') |
| 18 |
|
|
|
| 19 |
|
|
|
| 20 |
|
|
extern double log10(); |
| 21 |
|
|
|
| 22 |
|
|
|
| 23 |
|
|
|
| 24 |
|
|
|
| 25 |
|
|
|
| 26 |
|
|
initialize() |
| 27 |
|
|
|
| 28 |
|
|
{ |
| 29 |
|
|
int i; |
| 30 |
|
|
|
| 31 |
|
|
for (i = 0; i < NCUR; i++) |
| 32 |
|
|
usecurve[i] = 1; |
| 33 |
|
|
|
| 34 |
|
|
} |
| 35 |
|
|
|
| 36 |
|
|
|
| 37 |
|
|
|
| 38 |
|
|
|
| 39 |
|
|
|
| 40 |
|
|
|
| 41 |
|
|
option(s) /* record option */ |
| 42 |
|
|
|
| 43 |
|
|
char *s; |
| 44 |
|
|
|
| 45 |
|
|
{ |
| 46 |
|
|
double atof(); |
| 47 |
|
|
char *sp; |
| 48 |
|
|
short userror = 0; |
| 49 |
|
|
int i; |
| 50 |
|
|
|
| 51 |
schorsch |
1.3 |
if (s[0] == '-') { |
| 52 |
greg |
1.1 |
|
| 53 |
|
|
switch(s[1]) { |
| 54 |
|
|
|
| 55 |
|
|
case 'x': |
| 56 |
|
|
xmnset = atof(s+2); |
| 57 |
|
|
break; |
| 58 |
|
|
|
| 59 |
|
|
case 'y': |
| 60 |
|
|
ymnset = atof(s+2); |
| 61 |
|
|
break; |
| 62 |
|
|
|
| 63 |
|
|
case 's': /* set symbol size */ |
| 64 |
|
|
symrad = atoi(s+2); |
| 65 |
|
|
break; |
| 66 |
|
|
|
| 67 |
|
|
case 'l': /* log plot */ |
| 68 |
|
|
if (s[2] == 'x') |
| 69 |
|
|
logx++; |
| 70 |
|
|
else if (s[2] == 'y') |
| 71 |
|
|
logy++; |
| 72 |
|
|
else |
| 73 |
|
|
userror++; |
| 74 |
|
|
break; |
| 75 |
|
|
|
| 76 |
|
|
case 'g': /* grid on */ |
| 77 |
|
|
grid = TRUE; |
| 78 |
|
|
break; |
| 79 |
|
|
|
| 80 |
|
|
case 'p': /* polar coordinates */ |
| 81 |
|
|
if (s[2] == 'd') |
| 82 |
|
|
polar = DEGREES; |
| 83 |
|
|
else if (s[2] == 'r') |
| 84 |
|
|
polar = RADIANS; |
| 85 |
|
|
else |
| 86 |
|
|
userror++; |
| 87 |
|
|
break; |
| 88 |
|
|
|
| 89 |
|
|
default: |
| 90 |
|
|
for (sp = s+1; *sp && *sp > '@' && *sp < '@'+NCUR; sp++) |
| 91 |
|
|
usecurve[*sp-'@'] = 0; |
| 92 |
|
|
userror = *sp; |
| 93 |
|
|
break; |
| 94 |
|
|
} |
| 95 |
schorsch |
1.3 |
} else { |
| 96 |
greg |
1.1 |
|
| 97 |
|
|
switch (s[1]) { |
| 98 |
|
|
|
| 99 |
|
|
case 'x': |
| 100 |
|
|
xmxset = atof(s+2); |
| 101 |
|
|
break; |
| 102 |
|
|
|
| 103 |
|
|
case 'y': |
| 104 |
|
|
ymxset = atof(s+2); |
| 105 |
|
|
break; |
| 106 |
|
|
|
| 107 |
|
|
default: |
| 108 |
|
|
for (i = 0; i < 27; i++) |
| 109 |
|
|
usecurve[i] = 0; |
| 110 |
|
|
for (sp = s+1; *sp && *sp > '@' && *sp < '@'+NCUR; sp++) |
| 111 |
|
|
usecurve[*sp-'@'] = 1; |
| 112 |
|
|
userror = *sp; |
| 113 |
|
|
} |
| 114 |
schorsch |
1.3 |
} |
| 115 |
greg |
1.1 |
|
| 116 |
|
|
if (userror) |
| 117 |
|
|
error(USER, "options are [-sSYMRAD][-g][-lx][-ly][-p{dr}][-xXMIN][+xXMAX][-yYMIN][+yYMAX][-C..|+C..]"); |
| 118 |
|
|
|
| 119 |
|
|
} |
| 120 |
|
|
|
| 121 |
|
|
|
| 122 |
|
|
|
| 123 |
|
|
|
| 124 |
|
|
normalize(fp, fout) /* get extrema from file */ |
| 125 |
|
|
|
| 126 |
|
|
FILE *fp, *fout; |
| 127 |
|
|
|
| 128 |
|
|
{ |
| 129 |
|
|
char line[255]; |
| 130 |
|
|
double x, y; |
| 131 |
|
|
long npoints = 0; |
| 132 |
|
|
|
| 133 |
|
|
ncurves = 0; |
| 134 |
|
|
xmin = ymin = FHUGE; |
| 135 |
|
|
xmax = ymax = -FHUGE; |
| 136 |
|
|
|
| 137 |
|
|
while (fgets(line, sizeof line, fp) != NULL) { |
| 138 |
|
|
|
| 139 |
|
|
if (fout != NULL) |
| 140 |
|
|
fputs(line, fout); |
| 141 |
|
|
|
| 142 |
|
|
if (islabel(line)) |
| 143 |
|
|
|
| 144 |
|
|
ncurves++; |
| 145 |
|
|
|
| 146 |
|
|
else if (ncurves < NCUR && usecurve[ncurves] && isdata(line)) { |
| 147 |
|
|
|
| 148 |
|
|
if (getdata(line, &x, &y) < 0) |
| 149 |
|
|
continue; |
| 150 |
|
|
|
| 151 |
|
|
if (x < xmin) |
| 152 |
|
|
xmin = x; |
| 153 |
|
|
if (x > xmax) |
| 154 |
|
|
xmax = x; |
| 155 |
|
|
if (y < ymin) |
| 156 |
|
|
ymin = y; |
| 157 |
|
|
if (y > ymax) |
| 158 |
|
|
ymax = y; |
| 159 |
|
|
|
| 160 |
|
|
npoints++; |
| 161 |
|
|
|
| 162 |
|
|
} |
| 163 |
|
|
|
| 164 |
|
|
} |
| 165 |
|
|
|
| 166 |
|
|
if (npoints <= 1) |
| 167 |
|
|
error(USER, "insufficient data in file"); |
| 168 |
|
|
|
| 169 |
|
|
} |
| 170 |
|
|
|
| 171 |
|
|
|
| 172 |
|
|
|
| 173 |
|
|
|
| 174 |
|
|
|
| 175 |
|
|
makeaxis(flag) /* make and print x and y axis */ |
| 176 |
|
|
|
| 177 |
|
|
int flag; |
| 178 |
|
|
|
| 179 |
|
|
{ |
| 180 |
|
|
double xstep, ystep, step(), pos; |
| 181 |
|
|
int xorg, yorg; |
| 182 |
|
|
char *format, stemp[32]; |
| 183 |
|
|
|
| 184 |
|
|
/* set limits */ |
| 185 |
schorsch |
1.3 |
if (polar) { |
| 186 |
greg |
1.1 |
if (xmax-xmin < ymax-ymin) /* null aspect for polar */ |
| 187 |
|
|
xmax = xmin + ymax-ymin; |
| 188 |
|
|
else |
| 189 |
|
|
ymax = ymin + xmax-xmin; |
| 190 |
schorsch |
1.3 |
} else { |
| 191 |
|
|
if (xmnset > -FHUGE) { |
| 192 |
greg |
1.1 |
if (logx) { |
| 193 |
|
|
if (xmnset > FTINY) |
| 194 |
|
|
xmin = log10(xmnset); |
| 195 |
schorsch |
1.3 |
} else |
| 196 |
greg |
1.1 |
xmin = xmnset; |
| 197 |
schorsch |
1.3 |
} |
| 198 |
|
|
if (xmxset < FHUGE) { |
| 199 |
greg |
1.1 |
if (logx) { |
| 200 |
|
|
if (xmxset > FTINY) |
| 201 |
|
|
xmax = log10(xmxset); |
| 202 |
schorsch |
1.3 |
} else |
| 203 |
greg |
1.1 |
xmax = xmxset; |
| 204 |
schorsch |
1.3 |
} |
| 205 |
|
|
if (ymnset > -FHUGE) { |
| 206 |
greg |
1.1 |
if (logy) { |
| 207 |
|
|
if (ymnset > FTINY) |
| 208 |
|
|
ymin = log10(ymnset); |
| 209 |
schorsch |
1.3 |
} else |
| 210 |
greg |
1.1 |
ymin = ymnset; |
| 211 |
schorsch |
1.3 |
} |
| 212 |
|
|
if (ymxset < FHUGE) { |
| 213 |
greg |
1.1 |
if (logy) { |
| 214 |
|
|
if (ymxset > FTINY) |
| 215 |
|
|
ymax = log10(ymxset); |
| 216 |
schorsch |
1.3 |
} else |
| 217 |
greg |
1.1 |
ymax = ymxset; |
| 218 |
schorsch |
1.3 |
} |
| 219 |
greg |
1.1 |
} |
| 220 |
|
|
/* set step */ |
| 221 |
|
|
if (logx) { |
| 222 |
|
|
xmin = floor(xmin); |
| 223 |
|
|
xmax = ceil(xmax); |
| 224 |
|
|
xstep = 1.0; |
| 225 |
|
|
} else |
| 226 |
|
|
xstep = step(&xmin, &xmax); |
| 227 |
|
|
|
| 228 |
|
|
if (logy) { |
| 229 |
|
|
ymin = floor(ymin); |
| 230 |
|
|
ymax = ceil(ymax); |
| 231 |
|
|
ystep = 1.0; |
| 232 |
|
|
} else |
| 233 |
|
|
ystep = step(&ymin, &ymax); |
| 234 |
|
|
|
| 235 |
|
|
xsize = xmax - xmin; |
| 236 |
|
|
ysize = ymax - ymin; |
| 237 |
|
|
|
| 238 |
schorsch |
1.3 |
if (polar) { /* null aspect again */ |
| 239 |
greg |
1.1 |
if (xsize < ysize) |
| 240 |
|
|
xmax = xmin + (xsize = ysize); |
| 241 |
|
|
else |
| 242 |
|
|
ymax = ymin + (ysize = xsize); |
| 243 |
schorsch |
1.3 |
} |
| 244 |
greg |
1.1 |
|
| 245 |
|
|
if (xmin > 0.0) |
| 246 |
|
|
xorg = XBEG; |
| 247 |
|
|
else if (xmax < 0.0) |
| 248 |
|
|
xorg = XBEG+XSIZ-1; |
| 249 |
|
|
else |
| 250 |
|
|
xorg = XCONV(0.0); |
| 251 |
|
|
if (ymin > 0.0) |
| 252 |
|
|
yorg = YBEG; |
| 253 |
|
|
else if (ymax < 0.0) |
| 254 |
|
|
yorg = YBEG+YSIZ-1; |
| 255 |
|
|
else |
| 256 |
|
|
yorg = YCONV(0.0); |
| 257 |
|
|
/* make x-axis */ |
| 258 |
|
|
if (flag & BOX) { |
| 259 |
|
|
plseg(010, XBEG, YBEG, XBEG+XSIZ-1, YBEG); |
| 260 |
|
|
plseg(010, XBEG, YBEG+YSIZ-1, XBEG+XSIZ-1, YBEG+YSIZ-1); |
| 261 |
|
|
} |
| 262 |
|
|
if (flag & ORIGIN) |
| 263 |
|
|
plseg(010, XBEG, yorg, XBEG+XSIZ-1, yorg); |
| 264 |
|
|
|
| 265 |
|
|
format = "%5g"; |
| 266 |
|
|
if (logx) |
| 267 |
|
|
format = "1e%-3.0f"; |
| 268 |
|
|
|
| 269 |
|
|
for (pos = xmin; pos < xmax+xstep/2; pos += xstep) { |
| 270 |
schorsch |
1.3 |
if (flag & XTICS) { |
| 271 |
greg |
1.1 |
if (polar) |
| 272 |
|
|
plseg(010, XCONV(pos), yorg-TSIZ/2, XCONV(pos), yorg+TSIZ/2); |
| 273 |
|
|
else { |
| 274 |
|
|
plseg(010, XCONV(pos), YBEG, XCONV(pos), YBEG-TSIZ); |
| 275 |
|
|
plseg(010, XCONV(pos), YBEG+YSIZ-1, XCONV(pos), YBEG+YSIZ-1+TSIZ); |
| 276 |
|
|
} |
| 277 |
schorsch |
1.3 |
} |
| 278 |
greg |
1.1 |
if (flag & XNUMS) { |
| 279 |
|
|
sprintf(stemp, format, pos); |
| 280 |
|
|
if (polar) |
| 281 |
|
|
pprim(PMSTR, 020, XCONV(pos)-600, yorg-TSIZ-150, |
| 282 |
|
|
XCONV(pos)-600, yorg-TSIZ-150, stemp); |
| 283 |
|
|
else |
| 284 |
|
|
pprim(PMSTR, 020, XCONV(pos)-600, YBEG-2*TSIZ-150, |
| 285 |
|
|
XCONV(pos)-600, YBEG-2*TSIZ-150, stemp); |
| 286 |
|
|
} |
| 287 |
|
|
if (flag & XGRID) |
| 288 |
|
|
plseg(040, XCONV(pos), YBEG, XCONV(pos), YBEG+YSIZ-1); |
| 289 |
|
|
} |
| 290 |
|
|
/* make y-axis */ |
| 291 |
|
|
if (flag & BOX) { |
| 292 |
|
|
plseg(010, XBEG, YBEG, XBEG, YBEG+YSIZ-1); |
| 293 |
|
|
plseg(010, XBEG+XSIZ-1, YBEG, XBEG+XSIZ-1, YBEG+YSIZ-1); |
| 294 |
|
|
} |
| 295 |
|
|
if (flag & ORIGIN) |
| 296 |
|
|
plseg(010, xorg, YBEG, xorg, YBEG+YSIZ-1); |
| 297 |
|
|
|
| 298 |
|
|
format = "%5g"; |
| 299 |
|
|
if (logy) |
| 300 |
|
|
format = "1e%-3.0f"; |
| 301 |
|
|
|
| 302 |
|
|
for (pos = ymin; pos < ymax+ystep/2; pos += ystep) { |
| 303 |
schorsch |
1.3 |
if (flag & YTICS) { |
| 304 |
greg |
1.1 |
if (polar) |
| 305 |
|
|
plseg(010, xorg-TSIZ/2, YCONV(pos), xorg+TSIZ/2, YCONV(pos)); |
| 306 |
|
|
else { |
| 307 |
|
|
plseg(010, XBEG, YCONV(pos), XBEG-TSIZ, YCONV(pos)); |
| 308 |
|
|
plseg(010, XBEG+XSIZ-1, YCONV(pos), XBEG+XSIZ-1+TSIZ, YCONV(pos)); |
| 309 |
|
|
} |
| 310 |
schorsch |
1.3 |
} |
| 311 |
greg |
1.1 |
if (flag & YNUMS) { |
| 312 |
|
|
sprintf(stemp, format, pos); |
| 313 |
|
|
if (polar) |
| 314 |
|
|
pprim(PMSTR, 020, xorg-TSIZ-900, YCONV(pos)+32, |
| 315 |
|
|
xorg-TSIZ-900, YCONV(pos)+32, stemp); |
| 316 |
|
|
else |
| 317 |
|
|
pprim(PMSTR, 020, XBEG-2*TSIZ-900, YCONV(pos)+32, |
| 318 |
|
|
XBEG-2*TSIZ-900, YCONV(pos)+32, stemp); |
| 319 |
|
|
} |
| 320 |
|
|
if (flag & YGRID) |
| 321 |
|
|
plseg(040, XBEG, YCONV(pos), XBEG+XSIZ-1, YCONV(pos)); |
| 322 |
|
|
} |
| 323 |
|
|
|
| 324 |
|
|
} |
| 325 |
|
|
|
| 326 |
|
|
|
| 327 |
|
|
|
| 328 |
|
|
isdata(s) |
| 329 |
|
|
|
| 330 |
|
|
register char *s; |
| 331 |
|
|
|
| 332 |
|
|
{ |
| 333 |
|
|
int commas = 0; |
| 334 |
|
|
|
| 335 |
|
|
while (*s) |
| 336 |
|
|
if (isfloat(*s) || isspace(*s)) |
| 337 |
|
|
s++; |
| 338 |
|
|
else if (*s == ',') { |
| 339 |
|
|
commas++; |
| 340 |
|
|
s++; |
| 341 |
|
|
} |
| 342 |
|
|
else |
| 343 |
|
|
return 0; |
| 344 |
|
|
|
| 345 |
|
|
return commas <= 1; |
| 346 |
|
|
} |
| 347 |
|
|
|
| 348 |
|
|
|
| 349 |
|
|
|
| 350 |
|
|
|
| 351 |
|
|
islabel(s) |
| 352 |
|
|
|
| 353 |
|
|
char s[]; |
| 354 |
|
|
|
| 355 |
|
|
{ |
| 356 |
|
|
int i; |
| 357 |
|
|
|
| 358 |
|
|
i = strlen(s) - 2; |
| 359 |
|
|
|
| 360 |
|
|
return(i > 0 && s[0] == '"' && s[i] == '"'); |
| 361 |
|
|
} |
| 362 |
|
|
|
| 363 |
|
|
|
| 364 |
|
|
|
| 365 |
|
|
|
| 366 |
|
|
double |
| 367 |
|
|
step(mn, mx) /* compute step size for axis */ |
| 368 |
|
|
|
| 369 |
|
|
double *mn, *mx; |
| 370 |
|
|
|
| 371 |
|
|
{ |
| 372 |
|
|
static int steps[] = {100, 50, 20, 10, 5, 2, 1}; |
| 373 |
|
|
int i; |
| 374 |
|
|
double fact, stp; |
| 375 |
|
|
double pown(), floor(), ceil(); |
| 376 |
|
|
|
| 377 |
|
|
if (*mx-*mn <= FTINY) { |
| 378 |
|
|
stp = 1.0; |
| 379 |
|
|
} |
| 380 |
|
|
else { |
| 381 |
|
|
fact = pown(10.0, (int)log10(*mx-*mn)-2); |
| 382 |
|
|
stp = (*mx-*mn)/fact/MINDIVS; |
| 383 |
|
|
|
| 384 |
|
|
for (i = 0; stp < steps[i]; i++); |
| 385 |
|
|
stp = steps[i]*fact; |
| 386 |
|
|
} |
| 387 |
|
|
|
| 388 |
|
|
*mn = floor(*mn/stp) * stp; |
| 389 |
|
|
*mx = ceil(*mx/stp) * stp; |
| 390 |
|
|
|
| 391 |
|
|
return(stp); |
| 392 |
|
|
} |
| 393 |
|
|
|
| 394 |
|
|
|
| 395 |
|
|
|
| 396 |
|
|
double |
| 397 |
|
|
pown(x, n) /* raise x to an integer power */ |
| 398 |
|
|
|
| 399 |
|
|
double x; |
| 400 |
|
|
int n; |
| 401 |
|
|
|
| 402 |
|
|
{ |
| 403 |
|
|
register int i; |
| 404 |
|
|
double p = 1.0; |
| 405 |
|
|
|
| 406 |
|
|
if (n > 0) |
| 407 |
|
|
for (i = 0; i < n; i++) |
| 408 |
|
|
p *= x; |
| 409 |
|
|
else |
| 410 |
|
|
for (i = 0; i > n; i--) |
| 411 |
|
|
p /= x; |
| 412 |
|
|
|
| 413 |
|
|
return(p); |
| 414 |
|
|
} |
| 415 |
|
|
|
| 416 |
|
|
|
| 417 |
|
|
|
| 418 |
|
|
|
| 419 |
|
|
istitle(s) |
| 420 |
|
|
|
| 421 |
|
|
char *s; |
| 422 |
|
|
|
| 423 |
|
|
{ |
| 424 |
|
|
char word[32]; |
| 425 |
|
|
|
| 426 |
|
|
if (sscanf(s, "%10s", word) == 1) |
| 427 |
|
|
return strcmp(word, "title") == 0; |
| 428 |
|
|
else |
| 429 |
|
|
return 0; |
| 430 |
|
|
} |
| 431 |
|
|
|
| 432 |
|
|
|
| 433 |
|
|
|
| 434 |
|
|
|
| 435 |
|
|
isdivlab(s) /* return TRUE if division label(s) */ |
| 436 |
|
|
|
| 437 |
|
|
register char *s; |
| 438 |
|
|
|
| 439 |
|
|
{ |
| 440 |
|
|
|
| 441 |
|
|
return(instr(s, "division") != NULL); |
| 442 |
|
|
} |
| 443 |
|
|
|
| 444 |
|
|
|
| 445 |
|
|
|
| 446 |
|
|
|
| 447 |
|
|
isxlabel(s) |
| 448 |
|
|
|
| 449 |
|
|
register char *s; |
| 450 |
|
|
|
| 451 |
|
|
{ |
| 452 |
|
|
register char *xindex = instr(s, "x "); |
| 453 |
|
|
|
| 454 |
|
|
return(xindex != NULL && instr(xindex, "label ") != NULL); |
| 455 |
|
|
} |
| 456 |
|
|
|
| 457 |
|
|
|
| 458 |
|
|
|
| 459 |
|
|
|
| 460 |
|
|
isylabel(s) |
| 461 |
|
|
|
| 462 |
|
|
register char *s; |
| 463 |
|
|
|
| 464 |
|
|
{ |
| 465 |
|
|
register char *yindex = instr(s, "y "); |
| 466 |
|
|
|
| 467 |
|
|
return(yindex != NULL && instr(yindex, "label ") != NULL); |
| 468 |
|
|
} |
| 469 |
|
|
|
| 470 |
|
|
|
| 471 |
|
|
|
| 472 |
|
|
char * |
| 473 |
|
|
instr(s, t) /* return pointer to first occurrence of t in s */ |
| 474 |
|
|
|
| 475 |
|
|
char *s, |
| 476 |
|
|
*t; |
| 477 |
|
|
|
| 478 |
|
|
{ |
| 479 |
|
|
register char *pt, *ps; |
| 480 |
|
|
|
| 481 |
|
|
do { |
| 482 |
|
|
|
| 483 |
|
|
ps = s; |
| 484 |
|
|
pt = t; |
| 485 |
|
|
|
| 486 |
|
|
while (*pt && *pt == *ps++) |
| 487 |
|
|
pt++; |
| 488 |
|
|
|
| 489 |
|
|
if (*pt == '\0') |
| 490 |
|
|
return(s); |
| 491 |
|
|
|
| 492 |
|
|
} while (*s++); |
| 493 |
|
|
|
| 494 |
|
|
return(NULL); |
| 495 |
|
|
} |
| 496 |
|
|
|
| 497 |
|
|
|
| 498 |
|
|
|
| 499 |
|
|
|
| 500 |
|
|
char * |
| 501 |
|
|
snagquo(s) /* find and return quoted string within s */ |
| 502 |
|
|
|
| 503 |
|
|
register char *s; |
| 504 |
|
|
|
| 505 |
|
|
{ |
| 506 |
|
|
register char *rval = NULL; |
| 507 |
|
|
|
| 508 |
|
|
for ( ; *s; s++) |
| 509 |
schorsch |
1.3 |
if (*s == '"') { |
| 510 |
greg |
1.1 |
if (rval == NULL) |
| 511 |
|
|
rval = s+1; |
| 512 |
|
|
else { |
| 513 |
|
|
*s = '\0'; |
| 514 |
|
|
return(rval); |
| 515 |
|
|
} |
| 516 |
schorsch |
1.3 |
} |
| 517 |
greg |
1.1 |
|
| 518 |
|
|
return(NULL); |
| 519 |
|
|
} |
| 520 |
|
|
|
| 521 |
|
|
|
| 522 |
|
|
|
| 523 |
|
|
|
| 524 |
|
|
getdata(s, xp, yp) /* get data from line */ |
| 525 |
|
|
|
| 526 |
|
|
char *s; |
| 527 |
|
|
double *xp, *yp; |
| 528 |
|
|
|
| 529 |
|
|
{ |
| 530 |
|
|
double sin(), cos(); |
| 531 |
|
|
int oobounds = 0; |
| 532 |
|
|
double a; |
| 533 |
|
|
register char *cp; |
| 534 |
|
|
|
| 535 |
schorsch |
1.2 |
if ((cp = strchr(s, ',')) != NULL) |
| 536 |
greg |
1.1 |
*cp = ' '; |
| 537 |
|
|
|
| 538 |
|
|
if (sscanf(s, "%lf %lf", xp, yp) != 2) |
| 539 |
|
|
return(-1); |
| 540 |
|
|
|
| 541 |
|
|
if (*xp < xmnset || *xp > xmxset) |
| 542 |
|
|
oobounds++; |
| 543 |
|
|
if (*yp < ymnset || *yp > ymxset) |
| 544 |
|
|
oobounds++; |
| 545 |
|
|
|
| 546 |
schorsch |
1.3 |
if (logx) { |
| 547 |
greg |
1.1 |
if (*xp < FTINY) |
| 548 |
|
|
oobounds++; |
| 549 |
|
|
else |
| 550 |
|
|
*xp = log10(*xp); |
| 551 |
schorsch |
1.3 |
} |
| 552 |
greg |
1.1 |
|
| 553 |
schorsch |
1.3 |
if (logy) { |
| 554 |
greg |
1.1 |
if (*yp < FTINY) |
| 555 |
|
|
oobounds++; |
| 556 |
|
|
else |
| 557 |
|
|
*yp = log10(*yp); |
| 558 |
schorsch |
1.3 |
} |
| 559 |
greg |
1.1 |
|
| 560 |
|
|
if (polar) { |
| 561 |
|
|
a = *xp; |
| 562 |
|
|
if (polar == DEGREES) |
| 563 |
|
|
a *= PI/180.0; |
| 564 |
|
|
*xp = *yp * cos(a); |
| 565 |
|
|
*yp *= sin(a); |
| 566 |
|
|
} |
| 567 |
|
|
|
| 568 |
|
|
return(oobounds ? -1 : 0); |
| 569 |
|
|
} |
| 570 |
|
|
|
| 571 |
|
|
|
| 572 |
|
|
|
| 573 |
|
|
|
| 574 |
|
|
symout(a0, x, y, sname) /* output a symbol */ |
| 575 |
|
|
|
| 576 |
|
|
int a0; |
| 577 |
|
|
int x, y; |
| 578 |
|
|
char *sname; |
| 579 |
|
|
|
| 580 |
|
|
{ |
| 581 |
|
|
|
| 582 |
|
|
pprim(PSEG, a0, x-symrad, y-symrad, x+symrad, y+symrad, sname); |
| 583 |
|
|
|
| 584 |
|
|
} |
| 585 |
|
|
|
| 586 |
|
|
|
| 587 |
|
|
|
| 588 |
|
|
boxstring(a0, xmn, ymn, xmx, ymx, s) /* output a string within a box */ |
| 589 |
|
|
|
| 590 |
|
|
int a0; |
| 591 |
|
|
int xmn, ymn, xmx, ymx; |
| 592 |
|
|
char *s; |
| 593 |
|
|
|
| 594 |
|
|
{ |
| 595 |
|
|
int start; |
| 596 |
|
|
long size; |
| 597 |
|
|
|
| 598 |
|
|
if (a0 & 020) { /* up or down */ |
| 599 |
|
|
|
| 600 |
|
|
size = (long)strlen(s)*(xmx-xmn)*2/3; /* aspect ratio is 1.5 */ |
| 601 |
|
|
|
| 602 |
|
|
if (size > ymx-ymn) { |
| 603 |
|
|
size = ymx-ymn; /* squash it */ |
| 604 |
|
|
start = ymn; |
| 605 |
|
|
} else |
| 606 |
|
|
start = (ymx-ymn-(int)size)/2 + ymn; /* center it */ |
| 607 |
|
|
|
| 608 |
|
|
pprim(PVSTR, a0, xmn, start, xmx, start+(int)size, s); |
| 609 |
|
|
|
| 610 |
|
|
} else { /* right or left */ |
| 611 |
|
|
|
| 612 |
|
|
size = (long)strlen(s)*(ymx-ymn)*2/3; /* aspect ratio is 1.5 */ |
| 613 |
|
|
|
| 614 |
|
|
if (size > xmx-xmn) { |
| 615 |
|
|
size = xmx-xmn; /* squash it */ |
| 616 |
|
|
start = xmn; |
| 617 |
|
|
} else |
| 618 |
|
|
start = (xmx-xmn-(int)size)/2 + xmn; /* center it */ |
| 619 |
|
|
|
| 620 |
|
|
pprim(PVSTR, a0, start, ymn, start+(int)size, ymx, s); |
| 621 |
|
|
|
| 622 |
|
|
} |
| 623 |
|
|
|
| 624 |
|
|
} |
