global.c
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1 
2 /*<html><pre> -<a href="qh-globa.htm"
3  >-------------------------------</a><a name="TOP">-</a>
4 
5  global.c
6  initializes all the globals of the qhull application
7 
8  see README
9 
10  see libqhull.h for qh.globals and function prototypes
11 
12  see qhull_a.h for internal functions
13 
14  Copyright (c) 1993-2015 The Geometry Center.
15  $Id: //main/2015/qhull/src/libqhull/global.c#17 $$Change: 2066 $
16  $DateTime: 2016/01/18 19:29:17 $$Author: bbarber $
17  */
18 
19 #include "qhull_a.h"
20 
21 /*========= qh definition -- globals defined in libqhull.h =======================*/
22 
23 #if qh_QHpointer
24 qhT *qh_qh= NULL; /* pointer to all global variables */
25 #else
26 qhT qh_qh; /* all global variables.
27  Add "= {0}" if this causes a compiler error.
28  Also qh_qhstat in stat.c and qhmem in mem.c. */
29 #endif
30 
31 /*-<a href ="qh-globa.htm#TOC"
32  >--------------------------------</a><a name="qh_version">-</a>
33 
34  qh_version
35  version string by year and date
36  qh_version2 for Unix users and -V
37 
38  the revision increases on code changes only
39 
40  notes:
41  change date: Changes.txt, Announce.txt, index.htm, README.txt,
42  qhull-news.html, Eudora signatures, CMakeLists.txt
43  change version: README.txt, qh-get.htm, File_id.diz, Makefile.txt, CMakeLists.txt
44  check that CmakeLists @version is the same as qh_version2
45  change year: Copying.txt
46  check download size
47  recompile user_eg.c, rbox.c, libqhull.c, qconvex.c, qdelaun.c qvoronoi.c, qhalf.c, testqset.c
48 */
49 
50 const char qh_version[]= "2015.2 2016/01/18";
51 const char qh_version2[]= "qhull 7.2.0 (2015.2 2016/01/18)";
52 
53 /*-<a href="qh-globa.htm#TOC"
54  >-------------------------------</a><a name="appendprint">-</a>
55 
56  qh_appendprint( printFormat )
57  append printFormat to qh.PRINTout unless already defined
58 */
59 void qh_appendprint(qh_PRINT format) {
60  int i;
61 
62  for (i=0; i < qh_PRINTEND; i++) {
63  if (qh PRINTout[i] == format && format != qh_PRINTqhull)
64  break;
65  if (!qh PRINTout[i]) {
66  qh PRINTout[i]= format;
67  break;
68  }
69  }
70 } /* appendprint */
71 
72 /*-<a href="qh-globa.htm#TOC"
73  >-------------------------------</a><a name="checkflags">-</a>
74 
75  qh_checkflags( commandStr, hiddenFlags )
76  errors if commandStr contains hiddenFlags
77  hiddenFlags starts and ends with a space and is space delimited (checked)
78 
79  notes:
80  ignores first word (e.g., "qconvex i")
81  use qh_strtol/strtod since strtol/strtod may or may not skip trailing spaces
82 
83  see:
84  qh_initflags() initializes Qhull according to commandStr
85 */
86 void qh_checkflags(char *command, char *hiddenflags) {
87  char *s= command, *t, *chkerr; /* qh_skipfilename is non-const */
88  char key, opt, prevopt;
89  char chkkey[]= " ";
90  char chkopt[]= " ";
91  char chkopt2[]= " ";
92  boolT waserr= False;
93 
94  if (*hiddenflags != ' ' || hiddenflags[strlen(hiddenflags)-1] != ' ') {
95  qh_fprintf(qh ferr, 6026, "qhull error (qh_checkflags): hiddenflags must start and end with a space: \"%s\"", hiddenflags);
96  qh_errexit(qh_ERRinput, NULL, NULL);
97  }
98  if (strpbrk(hiddenflags, ",\n\r\t")) {
99  qh_fprintf(qh ferr, 6027, "qhull error (qh_checkflags): hiddenflags contains commas, newlines, or tabs: \"%s\"", hiddenflags);
100  qh_errexit(qh_ERRinput, NULL, NULL);
101  }
102  while (*s && !isspace(*s)) /* skip program name */
103  s++;
104  while (*s) {
105  while (*s && isspace(*s))
106  s++;
107  if (*s == '-')
108  s++;
109  if (!*s)
110  break;
111  key = *s++;
112  chkerr = NULL;
113  if (key == 'T' && (*s == 'I' || *s == 'O')) { /* TI or TO 'file name' */
114  s= qh_skipfilename(++s);
115  continue;
116  }
117  chkkey[1]= key;
118  if (strstr(hiddenflags, chkkey)) {
119  chkerr= chkkey;
120  }else if (isupper(key)) {
121  opt= ' ';
122  prevopt= ' ';
123  chkopt[1]= key;
124  chkopt2[1]= key;
125  while (!chkerr && *s && !isspace(*s)) {
126  opt= *s++;
127  if (isalpha(opt)) {
128  chkopt[2]= opt;
129  if (strstr(hiddenflags, chkopt))
130  chkerr= chkopt;
131  if (prevopt != ' ') {
132  chkopt2[2]= prevopt;
133  chkopt2[3]= opt;
134  if (strstr(hiddenflags, chkopt2))
135  chkerr= chkopt2;
136  }
137  }else if (key == 'Q' && isdigit(opt) && prevopt != 'b'
138  && (prevopt == ' ' || islower(prevopt))) {
139  chkopt[2]= opt;
140  if (strstr(hiddenflags, chkopt))
141  chkerr= chkopt;
142  }else {
143  qh_strtod(s-1, &t);
144  if (s < t)
145  s= t;
146  }
147  prevopt= opt;
148  }
149  }
150  if (chkerr) {
151  *chkerr= '\'';
152  chkerr[strlen(chkerr)-1]= '\'';
153  qh_fprintf(qh ferr, 6029, "qhull error: option %s is not used with this program.\n It may be used with qhull.\n", chkerr);
154  waserr= True;
155  }
156  }
157  if (waserr)
158  qh_errexit(qh_ERRinput, NULL, NULL);
159 } /* checkflags */
160 
161 /*-<a href="qh-globa.htm#TOC"
162  >-------------------------------</a><a name="qh_clear_outputflags">-</a>
163 
164  qh_clear_outputflags()
165  Clear output flags for QhullPoints
166 */
167 void qh_clear_outputflags(void) {
168  int i,k;
169 
170  qh ANNOTATEoutput= False;
171  qh DOintersections= False;
172  qh DROPdim= -1;
173  qh FORCEoutput= False;
174  qh GETarea= False;
175  qh GOODpoint= 0;
176  qh GOODpointp= NULL;
177  qh GOODthreshold= False;
178  qh GOODvertex= 0;
179  qh GOODvertexp= NULL;
180  qh IStracing= 0;
181  qh KEEParea= False;
182  qh KEEPmerge= False;
183  qh KEEPminArea= REALmax;
184  qh PRINTcentrums= False;
185  qh PRINTcoplanar= False;
186  qh PRINTdots= False;
187  qh PRINTgood= False;
188  qh PRINTinner= False;
189  qh PRINTneighbors= False;
190  qh PRINTnoplanes= False;
191  qh PRINToptions1st= False;
192  qh PRINTouter= False;
193  qh PRINTprecision= True;
194  qh PRINTridges= False;
195  qh PRINTspheres= False;
196  qh PRINTstatistics= False;
197  qh PRINTsummary= False;
198  qh PRINTtransparent= False;
199  qh SPLITthresholds= False;
200  qh TRACElevel= 0;
201  qh TRInormals= False;
202  qh USEstdout= False;
203  qh VERIFYoutput= False;
204  for (k=qh input_dim+1; k--; ) { /* duplicated in qh_initqhull_buffers and qh_clear_outputflags */
205  qh lower_threshold[k]= -REALmax;
206  qh upper_threshold[k]= REALmax;
207  qh lower_bound[k]= -REALmax;
208  qh upper_bound[k]= REALmax;
209  }
210 
211  for (i=0; i < qh_PRINTEND; i++) {
212  qh PRINTout[i]= qh_PRINTnone;
213  }
214 
215  if (!qh qhull_commandsiz2)
216  qh qhull_commandsiz2= (int)strlen(qh qhull_command); /* WARN64 */
217  else {
218  qh qhull_command[qh qhull_commandsiz2]= '\0';
219  }
220  if (!qh qhull_optionsiz2)
221  qh qhull_optionsiz2= (int)strlen(qh qhull_options); /* WARN64 */
222  else {
223  qh qhull_options[qh qhull_optionsiz2]= '\0';
224  qh qhull_optionlen= qh_OPTIONline; /* start a new line */
225  }
226 } /* clear_outputflags */
227 
228 /*-<a href="qh-globa.htm#TOC"
229  >-------------------------------</a><a name="clock">-</a>
230 
231  qh_clock()
232  return user CPU time in 100ths (qh_SECtick)
233  only defined for qh_CLOCKtype == 2
234 
235  notes:
236  use first value to determine time 0
237  from Stevens '92 8.15
238 */
239 unsigned long qh_clock(void) {
240 
241 #if (qh_CLOCKtype == 2)
242  struct tms time;
243  static long clktck; /* initialized first call and never updated */
244  double ratio, cpu;
245  unsigned long ticks;
246 
247  if (!clktck) {
248  if ((clktck= sysconf(_SC_CLK_TCK)) < 0) {
249  qh_fprintf(qh ferr, 6030, "qhull internal error (qh_clock): sysconf() failed. Use qh_CLOCKtype 1 in user.h\n");
250  qh_errexit(qh_ERRqhull, NULL, NULL);
251  }
252  }
253  if (times(&time) == -1) {
254  qh_fprintf(qh ferr, 6031, "qhull internal error (qh_clock): times() failed. Use qh_CLOCKtype 1 in user.h\n");
255  qh_errexit(qh_ERRqhull, NULL, NULL);
256  }
257  ratio= qh_SECticks / (double)clktck;
258  ticks= time.tms_utime * ratio;
259  return ticks;
260 #else
261  qh_fprintf(qh ferr, 6032, "qhull internal error (qh_clock): use qh_CLOCKtype 2 in user.h\n");
262  qh_errexit(qh_ERRqhull, NULL, NULL); /* never returns */
263  return 0;
264 #endif
265 } /* clock */
266 
267 /*-<a href="qh-globa.htm#TOC"
268  >-------------------------------</a><a name="freebuffers">-</a>
269 
270  qh_freebuffers()
271  free up global memory buffers
272 
273  notes:
274  must match qh_initbuffers()
275 */
276 void qh_freebuffers(void) {
277 
278  trace5((qh ferr, 5001, "qh_freebuffers: freeing up global memory buffers\n"));
279  /* allocated by qh_initqhull_buffers */
280  qh_memfree(qh NEARzero, qh hull_dim * sizeof(realT));
281  qh_memfree(qh lower_threshold, (qh input_dim+1) * sizeof(realT));
282  qh_memfree(qh upper_threshold, (qh input_dim+1) * sizeof(realT));
283  qh_memfree(qh lower_bound, (qh input_dim+1) * sizeof(realT));
284  qh_memfree(qh upper_bound, (qh input_dim+1) * sizeof(realT));
285  qh_memfree(qh gm_matrix, (qh hull_dim+1) * qh hull_dim * sizeof(coordT));
286  qh_memfree(qh gm_row, (qh hull_dim+1) * sizeof(coordT *));
287  qh NEARzero= qh lower_threshold= qh upper_threshold= NULL;
288  qh lower_bound= qh upper_bound= NULL;
289  qh gm_matrix= NULL;
290  qh gm_row= NULL;
291  qh_setfree(&qh other_points);
292  qh_setfree(&qh del_vertices);
293  qh_setfree(&qh coplanarfacetset);
294  if (qh line) /* allocated by qh_readinput, freed if no error */
295  qh_free(qh line);
296  if (qh half_space)
297  qh_free(qh half_space);
298  if (qh temp_malloc)
299  qh_free(qh temp_malloc);
300  if (qh feasible_point) /* allocated by qh_readfeasible */
301  qh_free(qh feasible_point);
302  if (qh feasible_string) /* allocated by qh_initflags */
303  qh_free(qh feasible_string);
304  qh line= qh feasible_string= NULL;
305  qh half_space= qh feasible_point= qh temp_malloc= NULL;
306  /* usually allocated by qh_readinput */
307  if (qh first_point && qh POINTSmalloc) {
308  qh_free(qh first_point);
309  qh first_point= NULL;
310  }
311  if (qh input_points && qh input_malloc) { /* set by qh_joggleinput */
312  qh_free(qh input_points);
313  qh input_points= NULL;
314  }
315  trace5((qh ferr, 5002, "qh_freebuffers: finished\n"));
316 } /* freebuffers */
317 
318 
319 /*-<a href="qh-globa.htm#TOC"
320  >-------------------------------</a><a name="freebuild">-</a>
321 
322  qh_freebuild( allmem )
323  free global memory used by qh_initbuild and qh_buildhull
324  if !allmem,
325  does not free short memory (e.g., facetT, freed by qh_memfreeshort)
326 
327  design:
328  free centrums
329  free each vertex
330  mark unattached ridges
331  for each facet
332  free ridges
333  free outside set, coplanar set, neighbor set, ridge set, vertex set
334  free facet
335  free hash table
336  free interior point
337  free merge set
338  free temporary sets
339 */
340 void qh_freebuild(boolT allmem) {
341  facetT *facet;
342  vertexT *vertex;
343  ridgeT *ridge, **ridgep;
344  mergeT *merge, **mergep;
345 
346  trace1((qh ferr, 1005, "qh_freebuild: free memory from qh_inithull and qh_buildhull\n"));
347  if (qh del_vertices)
348  qh_settruncate(qh del_vertices, 0);
349  if (allmem) {
350  while ((vertex= qh vertex_list)) {
351  if (vertex->next)
352  qh_delvertex(vertex);
353  else {
354  qh_memfree(vertex, (int)sizeof(vertexT));
355  qh newvertex_list= qh vertex_list= NULL;
356  }
357  }
358  }else if (qh VERTEXneighbors) {
359  FORALLvertices
360  qh_setfreelong(&(vertex->neighbors));
361  }
362  qh VERTEXneighbors= False;
363  qh GOODclosest= NULL;
364  if (allmem) {
365  FORALLfacets {
366  FOREACHridge_(facet->ridges)
367  ridge->seen= False;
368  }
369  FORALLfacets {
370  if (facet->visible) {
371  FOREACHridge_(facet->ridges) {
372  if (!otherfacet_(ridge, facet)->visible)
373  ridge->seen= True; /* an unattached ridge */
374  }
375  }
376  }
377  while ((facet= qh facet_list)) {
378  FOREACHridge_(facet->ridges) {
379  if (ridge->seen) {
380  qh_setfree(&(ridge->vertices));
381  qh_memfree(ridge, (int)sizeof(ridgeT));
382  }else
383  ridge->seen= True;
384  }
385  qh_setfree(&(facet->outsideset));
386  qh_setfree(&(facet->coplanarset));
387  qh_setfree(&(facet->neighbors));
388  qh_setfree(&(facet->ridges));
389  qh_setfree(&(facet->vertices));
390  if (facet->next)
391  qh_delfacet(facet);
392  else {
393  qh_memfree(facet, (int)sizeof(facetT));
394  qh visible_list= qh newfacet_list= qh facet_list= NULL;
395  }
396  }
397  }else {
398  FORALLfacets {
399  qh_setfreelong(&(facet->outsideset));
400  qh_setfreelong(&(facet->coplanarset));
401  if (!facet->simplicial) {
402  qh_setfreelong(&(facet->neighbors));
403  qh_setfreelong(&(facet->ridges));
404  qh_setfreelong(&(facet->vertices));
405  }
406  }
407  }
408  qh_setfree(&(qh hash_table));
409  qh_memfree(qh interior_point, qh normal_size);
410  qh interior_point= NULL;
411  FOREACHmerge_(qh facet_mergeset) /* usually empty */
412  qh_memfree(merge, (int)sizeof(mergeT));
413  qh facet_mergeset= NULL; /* temp set */
414  qh degen_mergeset= NULL; /* temp set */
415  qh_settempfree_all();
416 } /* freebuild */
417 
418 /*-<a href="qh-globa.htm#TOC"
419  >-------------------------------</a><a name="freeqhull">-</a>
420 
421  qh_freeqhull( allmem )
422  see qh_freeqhull2
423  if qh_QHpointer, frees qh_qh
424 */
425 void qh_freeqhull(boolT allmem) {
426  qh_freeqhull2(allmem);
427 #if qh_QHpointer
428  qh_free(qh_qh);
429  qh_qh= NULL;
430 #endif
431 }
432 
433 /*-<a href="qh-globa.htm#TOC"
434 >-------------------------------</a><a name="freeqhull2">-</a>
435 
436 qh_freeqhull2( allmem )
437  free global memory and set qhT to 0
438  if !allmem,
439  does not free short memory (freed by qh_memfreeshort unless qh_NOmem)
440 
441 notes:
442  sets qh.NOerrexit in case caller forgets to
443  Does not throw errors
444 
445 see:
446  see qh_initqhull_start2()
447 
448 design:
449  free global and temporary memory from qh_initbuild and qh_buildhull
450  free buffers
451  free statistics
452 */
453 void qh_freeqhull2(boolT allmem) {
454 
455  qh NOerrexit= True; /* no more setjmp since called at exit and ~QhullQh */
456  trace1((qh ferr, 1006, "qh_freeqhull: free global memory\n"));
457  qh_freebuild(allmem);
458  qh_freebuffers();
459  qh_freestatistics();
460 #if qh_QHpointer
461  memset((char *)qh_qh, 0, sizeof(qhT));
462  /* qh_qh freed by caller, qh_freeqhull() */
463 #else
464  memset((char *)&qh_qh, 0, sizeof(qhT));
465 #endif
466  qh NOerrexit= True;
467 } /* freeqhull2 */
468 
469 /*-<a href="qh-globa.htm#TOC"
470  >-------------------------------</a><a name="init_A">-</a>
471 
472  qh_init_A( infile, outfile, errfile, argc, argv )
473  initialize memory and stdio files
474  convert input options to option string (qh.qhull_command)
475 
476  notes:
477  infile may be NULL if qh_readpoints() is not called
478 
479  errfile should always be defined. It is used for reporting
480  errors. outfile is used for output and format options.
481 
482  argc/argv may be 0/NULL
483 
484  called before error handling initialized
485  qh_errexit() may not be used
486 */
487 void qh_init_A(FILE *infile, FILE *outfile, FILE *errfile, int argc, char *argv[]) {
488  qh_meminit(errfile);
489  qh_initqhull_start(infile, outfile, errfile);
490  qh_init_qhull_command(argc, argv);
491 } /* init_A */
492 
493 /*-<a href="qh-globa.htm#TOC"
494  >-------------------------------</a><a name="init_B">-</a>
495 
496  qh_init_B( points, numpoints, dim, ismalloc )
497  initialize globals for points array
498 
499  points has numpoints dim-dimensional points
500  points[0] is the first coordinate of the first point
501  points[1] is the second coordinate of the first point
502  points[dim] is the first coordinate of the second point
503 
504  ismalloc=True
505  Qhull will call qh_free(points) on exit or input transformation
506  ismalloc=False
507  Qhull will allocate a new point array if needed for input transformation
508 
509  qh.qhull_command
510  is the option string.
511  It is defined by qh_init_B(), qh_qhull_command(), or qh_initflags
512 
513  returns:
514  if qh.PROJECTinput or (qh.DELAUNAY and qh.PROJECTdelaunay)
515  projects the input to a new point array
516 
517  if qh.DELAUNAY,
518  qh.hull_dim is increased by one
519  if qh.ATinfinity,
520  qh_projectinput adds point-at-infinity for Delaunay tri.
521 
522  if qh.SCALEinput
523  changes the upper and lower bounds of the input, see qh_scaleinput()
524 
525  if qh.ROTATEinput
526  rotates the input by a random rotation, see qh_rotateinput()
527  if qh.DELAUNAY
528  rotates about the last coordinate
529 
530  notes:
531  called after points are defined
532  qh_errexit() may be used
533 */
534 void qh_init_B(coordT *points, int numpoints, int dim, boolT ismalloc) {
535  qh_initqhull_globals(points, numpoints, dim, ismalloc);
536  if (qhmem.LASTsize == 0)
537  qh_initqhull_mem();
538  /* mem.c and qset.c are initialized */
539  qh_initqhull_buffers();
540  qh_initthresholds(qh qhull_command);
541  if (qh PROJECTinput || (qh DELAUNAY && qh PROJECTdelaunay))
542  qh_projectinput();
543  if (qh SCALEinput)
544  qh_scaleinput();
545  if (qh ROTATErandom >= 0) {
546  qh_randommatrix(qh gm_matrix, qh hull_dim, qh gm_row);
547  if (qh DELAUNAY) {
548  int k, lastk= qh hull_dim-1;
549  for (k=0; k < lastk; k++) {
550  qh gm_row[k][lastk]= 0.0;
551  qh gm_row[lastk][k]= 0.0;
552  }
553  qh gm_row[lastk][lastk]= 1.0;
554  }
555  qh_gram_schmidt(qh hull_dim, qh gm_row);
556  qh_rotateinput(qh gm_row);
557  }
558 } /* init_B */
559 
560 /*-<a href="qh-globa.htm#TOC"
561  >-------------------------------</a><a name="init_qhull_command">-</a>
562 
563  qh_init_qhull_command( argc, argv )
564  build qh.qhull_command from argc/argv
565  Calls qh_exit if qhull_command is too short
566 
567  returns:
568  a space-delimited string of options (just as typed)
569 
570  notes:
571  makes option string easy to input and output
572 
573  argc/argv may be 0/NULL
574 */
575 void qh_init_qhull_command(int argc, char *argv[]) {
576 
577  if (!qh_argv_to_command(argc, argv, qh qhull_command, (int)sizeof(qh qhull_command))){
578  /* Assumes qh.ferr is defined. */
579  qh_fprintf(qh ferr, 6033, "qhull input error: more than %d characters in command line\n",
580  (int)sizeof(qh qhull_command));
581  qh_exit(qh_ERRinput); /* error reported, can not use qh_errexit */
582  }
583 } /* init_qhull_command */
584 
585 /*-<a href="qh-globa.htm#TOC"
586  >-------------------------------</a><a name="initflags">-</a>
587 
588  qh_initflags( commandStr )
589  set flags and initialized constants from commandStr
590  calls qh_exit() if qh->NOerrexit
591 
592  returns:
593  sets qh.qhull_command to command if needed
594 
595  notes:
596  ignores first word (e.g., "qhull d")
597  use qh_strtol/strtod since strtol/strtod may or may not skip trailing spaces
598 
599  see:
600  qh_initthresholds() continues processing of 'Pdn' and 'PDn'
601  'prompt' in unix.c for documentation
602 
603  design:
604  for each space-delimited option group
605  if top-level option
606  check syntax
607  append appropriate option to option string
608  set appropriate global variable or append printFormat to print options
609  else
610  for each sub-option
611  check syntax
612  append appropriate option to option string
613  set appropriate global variable or append printFormat to print options
614 */
615 void qh_initflags(char *command) {
616  int k, i, lastproject;
617  char *s= command, *t, *prev_s, *start, key;
618  boolT isgeom= False, wasproject;
619  realT r;
620 
621  if(qh NOerrexit){/* without this comment, segfault in gcc 4.4.0 mingw32 */
622  qh_fprintf(qh ferr, 6245, "qhull initflags error: qh.NOerrexit was not cleared before calling qh_initflags(). It should be cleared after setjmp(). Exit qhull.");
623  qh_exit(6245);
624  }
625  if (command <= &qh qhull_command[0] || command > &qh qhull_command[0] + sizeof(qh qhull_command)) {
626  if (command != &qh qhull_command[0]) {
627  *qh qhull_command= '\0';
628  strncat(qh qhull_command, command, sizeof(qh qhull_command)-strlen(qh qhull_command)-1);
629  }
630  while (*s && !isspace(*s)) /* skip program name */
631  s++;
632  }
633  while (*s) {
634  while (*s && isspace(*s))
635  s++;
636  if (*s == '-')
637  s++;
638  if (!*s)
639  break;
640  prev_s= s;
641  switch (*s++) {
642  case 'd':
643  qh_option("delaunay", NULL, NULL);
644  qh DELAUNAY= True;
645  break;
646  case 'f':
647  qh_option("facets", NULL, NULL);
648  qh_appendprint(qh_PRINTfacets);
649  break;
650  case 'i':
651  qh_option("incidence", NULL, NULL);
652  qh_appendprint(qh_PRINTincidences);
653  break;
654  case 'm':
655  qh_option("mathematica", NULL, NULL);
656  qh_appendprint(qh_PRINTmathematica);
657  break;
658  case 'n':
659  qh_option("normals", NULL, NULL);
660  qh_appendprint(qh_PRINTnormals);
661  break;
662  case 'o':
663  qh_option("offFile", NULL, NULL);
664  qh_appendprint(qh_PRINToff);
665  break;
666  case 'p':
667  qh_option("points", NULL, NULL);
668  qh_appendprint(qh_PRINTpoints);
669  break;
670  case 's':
671  qh_option("summary", NULL, NULL);
672  qh PRINTsummary= True;
673  break;
674  case 'v':
675  qh_option("voronoi", NULL, NULL);
676  qh VORONOI= True;
677  qh DELAUNAY= True;
678  break;
679  case 'A':
680  if (!isdigit(*s) && *s != '.' && *s != '-')
681  qh_fprintf(qh ferr, 7002, "qhull warning: no maximum cosine angle given for option 'An'. Ignored.\n");
682  else {
683  if (*s == '-') {
684  qh premerge_cos= -qh_strtod(s, &s);
685  qh_option("Angle-premerge-", NULL, &qh premerge_cos);
686  qh PREmerge= True;
687  }else {
688  qh postmerge_cos= qh_strtod(s, &s);
689  qh_option("Angle-postmerge", NULL, &qh postmerge_cos);
690  qh POSTmerge= True;
691  }
692  qh MERGING= True;
693  }
694  break;
695  case 'C':
696  if (!isdigit(*s) && *s != '.' && *s != '-')
697  qh_fprintf(qh ferr, 7003, "qhull warning: no centrum radius given for option 'Cn'. Ignored.\n");
698  else {
699  if (*s == '-') {
700  qh premerge_centrum= -qh_strtod(s, &s);
701  qh_option("Centrum-premerge-", NULL, &qh premerge_centrum);
702  qh PREmerge= True;
703  }else {
704  qh postmerge_centrum= qh_strtod(s, &s);
705  qh_option("Centrum-postmerge", NULL, &qh postmerge_centrum);
706  qh POSTmerge= True;
707  }
708  qh MERGING= True;
709  }
710  break;
711  case 'E':
712  if (*s == '-')
713  qh_fprintf(qh ferr, 7004, "qhull warning: negative maximum roundoff given for option 'An'. Ignored.\n");
714  else if (!isdigit(*s))
715  qh_fprintf(qh ferr, 7005, "qhull warning: no maximum roundoff given for option 'En'. Ignored.\n");
716  else {
717  qh DISTround= qh_strtod(s, &s);
718  qh_option("Distance-roundoff", NULL, &qh DISTround);
719  qh SETroundoff= True;
720  }
721  break;
722  case 'H':
723  start= s;
724  qh HALFspace= True;
725  qh_strtod(s, &t);
726  while (t > s) {
727  if (*t && !isspace(*t)) {
728  if (*t == ',')
729  t++;
730  else
731  qh_fprintf(qh ferr, 7006, "qhull warning: origin for Halfspace intersection should be 'Hn,n,n,...'\n");
732  }
733  s= t;
734  qh_strtod(s, &t);
735  }
736  if (start < t) {
737  if (!(qh feasible_string= (char*)calloc((size_t)(t-start+1), (size_t)1))) {
738  qh_fprintf(qh ferr, 6034, "qhull error: insufficient memory for 'Hn,n,n'\n");
739  qh_errexit(qh_ERRmem, NULL, NULL);
740  }
741  strncpy(qh feasible_string, start, (size_t)(t-start));
742  qh_option("Halfspace-about", NULL, NULL);
743  qh_option(qh feasible_string, NULL, NULL);
744  }else
745  qh_option("Halfspace", NULL, NULL);
746  break;
747  case 'R':
748  if (!isdigit(*s))
749  qh_fprintf(qh ferr, 7007, "qhull warning: missing random perturbation for option 'Rn'. Ignored\n");
750  else {
751  qh RANDOMfactor= qh_strtod(s, &s);
752  qh_option("Random_perturb", NULL, &qh RANDOMfactor);
753  qh RANDOMdist= True;
754  }
755  break;
756  case 'V':
757  if (!isdigit(*s) && *s != '-')
758  qh_fprintf(qh ferr, 7008, "qhull warning: missing visible distance for option 'Vn'. Ignored\n");
759  else {
760  qh MINvisible= qh_strtod(s, &s);
761  qh_option("Visible", NULL, &qh MINvisible);
762  }
763  break;
764  case 'U':
765  if (!isdigit(*s) && *s != '-')
766  qh_fprintf(qh ferr, 7009, "qhull warning: missing coplanar distance for option 'Un'. Ignored\n");
767  else {
768  qh MAXcoplanar= qh_strtod(s, &s);
769  qh_option("U-coplanar", NULL, &qh MAXcoplanar);
770  }
771  break;
772  case 'W':
773  if (*s == '-')
774  qh_fprintf(qh ferr, 7010, "qhull warning: negative outside width for option 'Wn'. Ignored.\n");
775  else if (!isdigit(*s))
776  qh_fprintf(qh ferr, 7011, "qhull warning: missing outside width for option 'Wn'. Ignored\n");
777  else {
778  qh MINoutside= qh_strtod(s, &s);
779  qh_option("W-outside", NULL, &qh MINoutside);
780  qh APPROXhull= True;
781  }
782  break;
783  /************ sub menus ***************/
784  case 'F':
785  while (*s && !isspace(*s)) {
786  switch (*s++) {
787  case 'a':
788  qh_option("Farea", NULL, NULL);
789  qh_appendprint(qh_PRINTarea);
790  qh GETarea= True;
791  break;
792  case 'A':
793  qh_option("FArea-total", NULL, NULL);
794  qh GETarea= True;
795  break;
796  case 'c':
797  qh_option("Fcoplanars", NULL, NULL);
798  qh_appendprint(qh_PRINTcoplanars);
799  break;
800  case 'C':
801  qh_option("FCentrums", NULL, NULL);
802  qh_appendprint(qh_PRINTcentrums);
803  break;
804  case 'd':
805  qh_option("Fd-cdd-in", NULL, NULL);
806  qh CDDinput= True;
807  break;
808  case 'D':
809  qh_option("FD-cdd-out", NULL, NULL);
810  qh CDDoutput= True;
811  break;
812  case 'F':
813  qh_option("FFacets-xridge", NULL, NULL);
814  qh_appendprint(qh_PRINTfacets_xridge);
815  break;
816  case 'i':
817  qh_option("Finner", NULL, NULL);
818  qh_appendprint(qh_PRINTinner);
819  break;
820  case 'I':
821  qh_option("FIDs", NULL, NULL);
822  qh_appendprint(qh_PRINTids);
823  break;
824  case 'm':
825  qh_option("Fmerges", NULL, NULL);
826  qh_appendprint(qh_PRINTmerges);
827  break;
828  case 'M':
829  qh_option("FMaple", NULL, NULL);
830  qh_appendprint(qh_PRINTmaple);
831  break;
832  case 'n':
833  qh_option("Fneighbors", NULL, NULL);
834  qh_appendprint(qh_PRINTneighbors);
835  break;
836  case 'N':
837  qh_option("FNeighbors-vertex", NULL, NULL);
838  qh_appendprint(qh_PRINTvneighbors);
839  break;
840  case 'o':
841  qh_option("Fouter", NULL, NULL);
842  qh_appendprint(qh_PRINTouter);
843  break;
844  case 'O':
845  if (qh PRINToptions1st) {
846  qh_option("FOptions", NULL, NULL);
847  qh_appendprint(qh_PRINToptions);
848  }else
849  qh PRINToptions1st= True;
850  break;
851  case 'p':
852  qh_option("Fpoint-intersect", NULL, NULL);
853  qh_appendprint(qh_PRINTpointintersect);
854  break;
855  case 'P':
856  qh_option("FPoint-nearest", NULL, NULL);
857  qh_appendprint(qh_PRINTpointnearest);
858  break;
859  case 'Q':
860  qh_option("FQhull", NULL, NULL);
861  qh_appendprint(qh_PRINTqhull);
862  break;
863  case 's':
864  qh_option("Fsummary", NULL, NULL);
865  qh_appendprint(qh_PRINTsummary);
866  break;
867  case 'S':
868  qh_option("FSize", NULL, NULL);
869  qh_appendprint(qh_PRINTsize);
870  qh GETarea= True;
871  break;
872  case 't':
873  qh_option("Ftriangles", NULL, NULL);
874  qh_appendprint(qh_PRINTtriangles);
875  break;
876  case 'v':
877  /* option set in qh_initqhull_globals */
878  qh_appendprint(qh_PRINTvertices);
879  break;
880  case 'V':
881  qh_option("FVertex-average", NULL, NULL);
882  qh_appendprint(qh_PRINTaverage);
883  break;
884  case 'x':
885  qh_option("Fxtremes", NULL, NULL);
886  qh_appendprint(qh_PRINTextremes);
887  break;
888  default:
889  s--;
890  qh_fprintf(qh ferr, 7012, "qhull warning: unknown 'F' output option %c, rest ignored\n", (int)s[0]);
891  while (*++s && !isspace(*s));
892  break;
893  }
894  }
895  break;
896  case 'G':
897  isgeom= True;
898  qh_appendprint(qh_PRINTgeom);
899  while (*s && !isspace(*s)) {
900  switch (*s++) {
901  case 'a':
902  qh_option("Gall-points", NULL, NULL);
903  qh PRINTdots= True;
904  break;
905  case 'c':
906  qh_option("Gcentrums", NULL, NULL);
907  qh PRINTcentrums= True;
908  break;
909  case 'h':
910  qh_option("Gintersections", NULL, NULL);
911  qh DOintersections= True;
912  break;
913  case 'i':
914  qh_option("Ginner", NULL, NULL);
915  qh PRINTinner= True;
916  break;
917  case 'n':
918  qh_option("Gno-planes", NULL, NULL);
919  qh PRINTnoplanes= True;
920  break;
921  case 'o':
922  qh_option("Gouter", NULL, NULL);
923  qh PRINTouter= True;
924  break;
925  case 'p':
926  qh_option("Gpoints", NULL, NULL);
927  qh PRINTcoplanar= True;
928  break;
929  case 'r':
930  qh_option("Gridges", NULL, NULL);
931  qh PRINTridges= True;
932  break;
933  case 't':
934  qh_option("Gtransparent", NULL, NULL);
935  qh PRINTtransparent= True;
936  break;
937  case 'v':
938  qh_option("Gvertices", NULL, NULL);
939  qh PRINTspheres= True;
940  break;
941  case 'D':
942  if (!isdigit(*s))
943  qh_fprintf(qh ferr, 6035, "qhull input error: missing dimension for option 'GDn'\n");
944  else {
945  if (qh DROPdim >= 0)
946  qh_fprintf(qh ferr, 7013, "qhull warning: can only drop one dimension. Previous 'GD%d' ignored\n",
947  qh DROPdim);
948  qh DROPdim= qh_strtol(s, &s);
949  qh_option("GDrop-dim", &qh DROPdim, NULL);
950  }
951  break;
952  default:
953  s--;
954  qh_fprintf(qh ferr, 7014, "qhull warning: unknown 'G' print option %c, rest ignored\n", (int)s[0]);
955  while (*++s && !isspace(*s));
956  break;
957  }
958  }
959  break;
960  case 'P':
961  while (*s && !isspace(*s)) {
962  switch (*s++) {
963  case 'd': case 'D': /* see qh_initthresholds() */
964  key= s[-1];
965  i= qh_strtol(s, &s);
966  r= 0;
967  if (*s == ':') {
968  s++;
969  r= qh_strtod(s, &s);
970  }
971  if (key == 'd')
972  qh_option("Pdrop-facets-dim-less", &i, &r);
973  else
974  qh_option("PDrop-facets-dim-more", &i, &r);
975  break;
976  case 'g':
977  qh_option("Pgood-facets", NULL, NULL);
978  qh PRINTgood= True;
979  break;
980  case 'G':
981  qh_option("PGood-facet-neighbors", NULL, NULL);
982  qh PRINTneighbors= True;
983  break;
984  case 'o':
985  qh_option("Poutput-forced", NULL, NULL);
986  qh FORCEoutput= True;
987  break;
988  case 'p':
989  qh_option("Pprecision-ignore", NULL, NULL);
990  qh PRINTprecision= False;
991  break;
992  case 'A':
993  if (!isdigit(*s))
994  qh_fprintf(qh ferr, 6036, "qhull input error: missing facet count for keep area option 'PAn'\n");
995  else {
996  qh KEEParea= qh_strtol(s, &s);
997  qh_option("PArea-keep", &qh KEEParea, NULL);
998  qh GETarea= True;
999  }
1000  break;
1001  case 'F':
1002  if (!isdigit(*s))
1003  qh_fprintf(qh ferr, 6037, "qhull input error: missing facet area for option 'PFn'\n");
1004  else {
1005  qh KEEPminArea= qh_strtod(s, &s);
1006  qh_option("PFacet-area-keep", NULL, &qh KEEPminArea);
1007  qh GETarea= True;
1008  }
1009  break;
1010  case 'M':
1011  if (!isdigit(*s))
1012  qh_fprintf(qh ferr, 6038, "qhull input error: missing merge count for option 'PMn'\n");
1013  else {
1014  qh KEEPmerge= qh_strtol(s, &s);
1015  qh_option("PMerge-keep", &qh KEEPmerge, NULL);
1016  }
1017  break;
1018  default:
1019  s--;
1020  qh_fprintf(qh ferr, 7015, "qhull warning: unknown 'P' print option %c, rest ignored\n", (int)s[0]);
1021  while (*++s && !isspace(*s));
1022  break;
1023  }
1024  }
1025  break;
1026  case 'Q':
1027  lastproject= -1;
1028  while (*s && !isspace(*s)) {
1029  switch (*s++) {
1030  case 'b': case 'B': /* handled by qh_initthresholds */
1031  key= s[-1];
1032  if (key == 'b' && *s == 'B') {
1033  s++;
1034  r= qh_DEFAULTbox;
1035  qh SCALEinput= True;
1036  qh_option("QbBound-unit-box", NULL, &r);
1037  break;
1038  }
1039  if (key == 'b' && *s == 'b') {
1040  s++;
1041  qh SCALElast= True;
1042  qh_option("Qbbound-last", NULL, NULL);
1043  break;
1044  }
1045  k= qh_strtol(s, &s);
1046  r= 0.0;
1047  wasproject= False;
1048  if (*s == ':') {
1049  s++;
1050  if ((r= qh_strtod(s, &s)) == 0.0) {
1051  t= s; /* need true dimension for memory allocation */
1052  while (*t && !isspace(*t)) {
1053  if (toupper(*t++) == 'B'
1054  && k == qh_strtol(t, &t)
1055  && *t++ == ':'
1056  && qh_strtod(t, &t) == 0.0) {
1057  qh PROJECTinput++;
1058  trace2((qh ferr, 2004, "qh_initflags: project dimension %d\n", k));
1059  qh_option("Qb-project-dim", &k, NULL);
1060  wasproject= True;
1061  lastproject= k;
1062  break;
1063  }
1064  }
1065  }
1066  }
1067  if (!wasproject) {
1068  if (lastproject == k && r == 0.0)
1069  lastproject= -1; /* doesn't catch all possible sequences */
1070  else if (key == 'b') {
1071  qh SCALEinput= True;
1072  if (r == 0.0)
1073  r= -qh_DEFAULTbox;
1074  qh_option("Qbound-dim-low", &k, &r);
1075  }else {
1076  qh SCALEinput= True;
1077  if (r == 0.0)
1078  r= qh_DEFAULTbox;
1079  qh_option("QBound-dim-high", &k, &r);
1080  }
1081  }
1082  break;
1083  case 'c':
1084  qh_option("Qcoplanar-keep", NULL, NULL);
1085  qh KEEPcoplanar= True;
1086  break;
1087  case 'f':
1088  qh_option("Qfurthest-outside", NULL, NULL);
1089  qh BESToutside= True;
1090  break;
1091  case 'g':
1092  qh_option("Qgood-facets-only", NULL, NULL);
1093  qh ONLYgood= True;
1094  break;
1095  case 'i':
1096  qh_option("Qinterior-keep", NULL, NULL);
1097  qh KEEPinside= True;
1098  break;
1099  case 'm':
1100  qh_option("Qmax-outside-only", NULL, NULL);
1101  qh ONLYmax= True;
1102  break;
1103  case 'r':
1104  qh_option("Qrandom-outside", NULL, NULL);
1105  qh RANDOMoutside= True;
1106  break;
1107  case 's':
1108  qh_option("Qsearch-initial-simplex", NULL, NULL);
1109  qh ALLpoints= True;
1110  break;
1111  case 't':
1112  qh_option("Qtriangulate", NULL, NULL);
1113  qh TRIangulate= True;
1114  break;
1115  case 'T':
1116  qh_option("QTestPoints", NULL, NULL);
1117  if (!isdigit(*s))
1118  qh_fprintf(qh ferr, 6039, "qhull input error: missing number of test points for option 'QTn'\n");
1119  else {
1120  qh TESTpoints= qh_strtol(s, &s);
1121  qh_option("QTestPoints", &qh TESTpoints, NULL);
1122  }
1123  break;
1124  case 'u':
1125  qh_option("QupperDelaunay", NULL, NULL);
1126  qh UPPERdelaunay= True;
1127  break;
1128  case 'v':
1129  qh_option("Qvertex-neighbors-convex", NULL, NULL);
1130  qh TESTvneighbors= True;
1131  break;
1132  case 'x':
1133  qh_option("Qxact-merge", NULL, NULL);
1134  qh MERGEexact= True;
1135  break;
1136  case 'z':
1137  qh_option("Qz-infinity-point", NULL, NULL);
1138  qh ATinfinity= True;
1139  break;
1140  case '0':
1141  qh_option("Q0-no-premerge", NULL, NULL);
1142  qh NOpremerge= True;
1143  break;
1144  case '1':
1145  if (!isdigit(*s)) {
1146  qh_option("Q1-no-angle-sort", NULL, NULL);
1147  qh ANGLEmerge= False;
1148  break;
1149  }
1150  switch (*s++) {
1151  case '0':
1152  qh_option("Q10-no-narrow", NULL, NULL);
1153  qh NOnarrow= True;
1154  break;
1155  case '1':
1156  qh_option("Q11-trinormals Qtriangulate", NULL, NULL);
1157  qh TRInormals= True;
1158  qh TRIangulate= True;
1159  break;
1160  case '2':
1161  qh_option("Q12-no-wide-dup", NULL, NULL);
1162  qh NOwide= True;
1163  break;
1164  default:
1165  s--;
1166  qh_fprintf(qh ferr, 7016, "qhull warning: unknown 'Q' qhull option 1%c, rest ignored\n", (int)s[0]);
1167  while (*++s && !isspace(*s));
1168  break;
1169  }
1170  break;
1171  case '2':
1172  qh_option("Q2-no-merge-independent", NULL, NULL);
1173  qh MERGEindependent= False;
1174  goto LABELcheckdigit;
1175  break; /* no warnings */
1176  case '3':
1177  qh_option("Q3-no-merge-vertices", NULL, NULL);
1178  qh MERGEvertices= False;
1179  LABELcheckdigit:
1180  if (isdigit(*s))
1181  qh_fprintf(qh ferr, 7017, "qhull warning: can not follow '1', '2', or '3' with a digit. '%c' skipped.\n",
1182  *s++);
1183  break;
1184  case '4':
1185  qh_option("Q4-avoid-old-into-new", NULL, NULL);
1186  qh AVOIDold= True;
1187  break;
1188  case '5':
1189  qh_option("Q5-no-check-outer", NULL, NULL);
1190  qh SKIPcheckmax= True;
1191  break;
1192  case '6':
1193  qh_option("Q6-no-concave-merge", NULL, NULL);
1194  qh SKIPconvex= True;
1195  break;
1196  case '7':
1197  qh_option("Q7-no-breadth-first", NULL, NULL);
1198  qh VIRTUALmemory= True;
1199  break;
1200  case '8':
1201  qh_option("Q8-no-near-inside", NULL, NULL);
1202  qh NOnearinside= True;
1203  break;
1204  case '9':
1205  qh_option("Q9-pick-furthest", NULL, NULL);
1206  qh PICKfurthest= True;
1207  break;
1208  case 'G':
1209  i= qh_strtol(s, &t);
1210  if (qh GOODpoint)
1211  qh_fprintf(qh ferr, 7018, "qhull warning: good point already defined for option 'QGn'. Ignored\n");
1212  else if (s == t)
1213  qh_fprintf(qh ferr, 7019, "qhull warning: missing good point id for option 'QGn'. Ignored\n");
1214  else if (i < 0 || *s == '-') {
1215  qh GOODpoint= i-1;
1216  qh_option("QGood-if-dont-see-point", &i, NULL);
1217  }else {
1218  qh GOODpoint= i+1;
1219  qh_option("QGood-if-see-point", &i, NULL);
1220  }
1221  s= t;
1222  break;
1223  case 'J':
1224  if (!isdigit(*s) && *s != '-')
1225  qh JOGGLEmax= 0.0;
1226  else {
1227  qh JOGGLEmax= (realT) qh_strtod(s, &s);
1228  qh_option("QJoggle", NULL, &qh JOGGLEmax);
1229  }
1230  break;
1231  case 'R':
1232  if (!isdigit(*s) && *s != '-')
1233  qh_fprintf(qh ferr, 7020, "qhull warning: missing random seed for option 'QRn'. Ignored\n");
1234  else {
1235  qh ROTATErandom= i= qh_strtol(s, &s);
1236  if (i > 0)
1237  qh_option("QRotate-id", &i, NULL );
1238  else if (i < -1)
1239  qh_option("QRandom-seed", &i, NULL );
1240  }
1241  break;
1242  case 'V':
1243  i= qh_strtol(s, &t);
1244  if (qh GOODvertex)
1245  qh_fprintf(qh ferr, 7021, "qhull warning: good vertex already defined for option 'QVn'. Ignored\n");
1246  else if (s == t)
1247  qh_fprintf(qh ferr, 7022, "qhull warning: no good point id given for option 'QVn'. Ignored\n");
1248  else if (i < 0) {
1249  qh GOODvertex= i - 1;
1250  qh_option("QV-good-facets-not-point", &i, NULL);
1251  }else {
1252  qh_option("QV-good-facets-point", &i, NULL);
1253  qh GOODvertex= i + 1;
1254  }
1255  s= t;
1256  break;
1257  default:
1258  s--;
1259  qh_fprintf(qh ferr, 7023, "qhull warning: unknown 'Q' qhull option %c, rest ignored\n", (int)s[0]);
1260  while (*++s && !isspace(*s));
1261  break;
1262  }
1263  }
1264  break;
1265  case 'T':
1266  while (*s && !isspace(*s)) {
1267  if (isdigit(*s) || *s == '-')
1268  qh IStracing= qh_strtol(s, &s);
1269  else switch (*s++) {
1270  case 'a':
1271  qh_option("Tannotate-output", NULL, NULL);
1272  qh ANNOTATEoutput= True;
1273  break;
1274  case 'c':
1275  qh_option("Tcheck-frequently", NULL, NULL);
1276  qh CHECKfrequently= True;
1277  break;
1278  case 's':
1279  qh_option("Tstatistics", NULL, NULL);
1280  qh PRINTstatistics= True;
1281  break;
1282  case 'v':
1283  qh_option("Tverify", NULL, NULL);
1284  qh VERIFYoutput= True;
1285  break;
1286  case 'z':
1287  if (qh ferr == qh_FILEstderr) {
1288  /* The C++ interface captures the output in qh_fprint_qhull() */
1289  qh_option("Tz-stdout", NULL, NULL);
1290  qh USEstdout= True;
1291  }else if (!qh fout)
1292  qh_fprintf(qh ferr, 7024, "qhull warning: output file undefined(stdout). Option 'Tz' ignored.\n");
1293  else {
1294  qh_option("Tz-stdout", NULL, NULL);
1295  qh USEstdout= True;
1296  qh ferr= qh fout;
1297  qhmem.ferr= qh fout;
1298  }
1299  break;
1300  case 'C':
1301  if (!isdigit(*s))
1302  qh_fprintf(qh ferr, 7025, "qhull warning: missing point id for cone for trace option 'TCn'. Ignored\n");
1303  else {
1304  i= qh_strtol(s, &s);
1305  qh_option("TCone-stop", &i, NULL);
1306  qh STOPcone= i + 1;
1307  }
1308  break;
1309  case 'F':
1310  if (!isdigit(*s))
1311  qh_fprintf(qh ferr, 7026, "qhull warning: missing frequency count for trace option 'TFn'. Ignored\n");
1312  else {
1313  qh REPORTfreq= qh_strtol(s, &s);
1314  qh_option("TFacet-log", &qh REPORTfreq, NULL);
1315  qh REPORTfreq2= qh REPORTfreq/2; /* for tracemerging() */
1316  }
1317  break;
1318  case 'I':
1319  if (!isspace(*s))
1320  qh_fprintf(qh ferr, 7027, "qhull warning: missing space between 'TI' and filename, %s\n", s);
1321  while (isspace(*s))
1322  s++;
1323  t= qh_skipfilename(s);
1324  {
1325  char filename[qh_FILENAMElen];
1326 
1327  qh_copyfilename(filename, (int)sizeof(filename), s, (int)(t-s)); /* WARN64 */
1328  s= t;
1329  if (!freopen(filename, "r", stdin)) {
1330  qh_fprintf(qh ferr, 6041, "qhull error: could not open file \"%s\".", filename);
1331  qh_errexit(qh_ERRinput, NULL, NULL);
1332  }else {
1333  qh_option("TInput-file", NULL, NULL);
1334  qh_option(filename, NULL, NULL);
1335  }
1336  }
1337  break;
1338  case 'O':
1339  if (!isspace(*s))
1340  qh_fprintf(qh ferr, 7028, "qhull warning: missing space between 'TO' and filename, %s\n", s);
1341  while (isspace(*s))
1342  s++;
1343  t= qh_skipfilename(s);
1344  {
1345  char filename[qh_FILENAMElen];
1346 
1347  qh_copyfilename(filename, (int)sizeof(filename), s, (int)(t-s)); /* WARN64 */
1348  s= t;
1349  if (!qh fout) {
1350  qh_fprintf(qh ferr, 6266, "qhull input warning: qh.fout was not set by caller. Cannot use option 'TO' to redirect output. Ignoring option 'TO'\n");
1351  }else if (!freopen(filename, "w", qh fout)) {
1352  qh_fprintf(qh ferr, 6044, "qhull error: could not open file \"%s\".", filename);
1353  qh_errexit(qh_ERRinput, NULL, NULL);
1354  }else {
1355  qh_option("TOutput-file", NULL, NULL);
1356  qh_option(filename, NULL, NULL);
1357  }
1358  }
1359  break;
1360  case 'P':
1361  if (!isdigit(*s))
1362  qh_fprintf(qh ferr, 7029, "qhull warning: missing point id for trace option 'TPn'. Ignored\n");
1363  else {
1364  qh TRACEpoint= qh_strtol(s, &s);
1365  qh_option("Trace-point", &qh TRACEpoint, NULL);
1366  }
1367  break;
1368  case 'M':
1369  if (!isdigit(*s))
1370  qh_fprintf(qh ferr, 7030, "qhull warning: missing merge id for trace option 'TMn'. Ignored\n");
1371  else {
1372  qh TRACEmerge= qh_strtol(s, &s);
1373  qh_option("Trace-merge", &qh TRACEmerge, NULL);
1374  }
1375  break;
1376  case 'R':
1377  if (!isdigit(*s))
1378  qh_fprintf(qh ferr, 7031, "qhull warning: missing rerun count for trace option 'TRn'. Ignored\n");
1379  else {
1380  qh RERUN= qh_strtol(s, &s);
1381  qh_option("TRerun", &qh RERUN, NULL);
1382  }
1383  break;
1384  case 'V':
1385  i= qh_strtol(s, &t);
1386  if (s == t)
1387  qh_fprintf(qh ferr, 7032, "qhull warning: missing furthest point id for trace option 'TVn'. Ignored\n");
1388  else if (i < 0) {
1389  qh STOPpoint= i - 1;
1390  qh_option("TV-stop-before-point", &i, NULL);
1391  }else {
1392  qh STOPpoint= i + 1;
1393  qh_option("TV-stop-after-point", &i, NULL);
1394  }
1395  s= t;
1396  break;
1397  case 'W':
1398  if (!isdigit(*s))
1399  qh_fprintf(qh ferr, 7033, "qhull warning: missing max width for trace option 'TWn'. Ignored\n");
1400  else {
1401  qh TRACEdist= (realT) qh_strtod(s, &s);
1402  qh_option("TWide-trace", NULL, &qh TRACEdist);
1403  }
1404  break;
1405  default:
1406  s--;
1407  qh_fprintf(qh ferr, 7034, "qhull warning: unknown 'T' trace option %c, rest ignored\n", (int)s[0]);
1408  while (*++s && !isspace(*s));
1409  break;
1410  }
1411  }
1412  break;
1413  default:
1414  qh_fprintf(qh ferr, 7035, "qhull warning: unknown flag %c(%x)\n", (int)s[-1],
1415  (int)s[-1]);
1416  break;
1417  }
1418  if (s-1 == prev_s && *s && !isspace(*s)) {
1419  qh_fprintf(qh ferr, 7036, "qhull warning: missing space after flag %c(%x); reserved for menu. Skipped.\n",
1420  (int)*prev_s, (int)*prev_s);
1421  while (*s && !isspace(*s))
1422  s++;
1423  }
1424  }
1425  if (qh STOPcone && qh JOGGLEmax < REALmax/2)
1426  qh_fprintf(qh ferr, 7078, "qhull warning: 'TCn' (stopCone) ignored when used with 'QJn' (joggle)\n");
1427  if (isgeom && !qh FORCEoutput && qh PRINTout[1])
1428  qh_fprintf(qh ferr, 7037, "qhull warning: additional output formats are not compatible with Geomview\n");
1429  /* set derived values in qh_initqhull_globals */
1430 } /* initflags */
1431 
1432 
1433 /*-<a href="qh-globa.htm#TOC"
1434  >-------------------------------</a><a name="initqhull_buffers">-</a>
1435 
1436  qh_initqhull_buffers()
1437  initialize global memory buffers
1438 
1439  notes:
1440  must match qh_freebuffers()
1441 */
1442 void qh_initqhull_buffers(void) {
1443  int k;
1444 
1445  qh TEMPsize= (qhmem.LASTsize - sizeof(setT))/SETelemsize;
1446  if (qh TEMPsize <= 0 || qh TEMPsize > qhmem.LASTsize)
1447  qh TEMPsize= 8; /* e.g., if qh_NOmem */
1448  qh other_points= qh_setnew(qh TEMPsize);
1449  qh del_vertices= qh_setnew(qh TEMPsize);
1450  qh coplanarfacetset= qh_setnew(qh TEMPsize);
1451  qh NEARzero= (realT *)qh_memalloc(qh hull_dim * sizeof(realT));
1452  qh lower_threshold= (realT *)qh_memalloc((qh input_dim+1) * sizeof(realT));
1453  qh upper_threshold= (realT *)qh_memalloc((qh input_dim+1) * sizeof(realT));
1454  qh lower_bound= (realT *)qh_memalloc((qh input_dim+1) * sizeof(realT));
1455  qh upper_bound= (realT *)qh_memalloc((qh input_dim+1) * sizeof(realT));
1456  for (k=qh input_dim+1; k--; ) { /* duplicated in qh_initqhull_buffers and qh_clear_outputflags */
1457  qh lower_threshold[k]= -REALmax;
1458  qh upper_threshold[k]= REALmax;
1459  qh lower_bound[k]= -REALmax;
1460  qh upper_bound[k]= REALmax;
1461  }
1462  qh gm_matrix= (coordT *)qh_memalloc((qh hull_dim+1) * qh hull_dim * sizeof(coordT));
1463  qh gm_row= (coordT **)qh_memalloc((qh hull_dim+1) * sizeof(coordT *));
1464 } /* initqhull_buffers */
1465 
1466 /*-<a href="qh-globa.htm#TOC"
1467  >-------------------------------</a><a name="initqhull_globals">-</a>
1468 
1469  qh_initqhull_globals( points, numpoints, dim, ismalloc )
1470  initialize globals
1471  if ismalloc
1472  points were malloc'd and qhull should free at end
1473 
1474  returns:
1475  sets qh.first_point, num_points, input_dim, hull_dim and others
1476  seeds random number generator (seed=1 if tracing)
1477  modifies qh.hull_dim if ((qh.DELAUNAY and qh.PROJECTdelaunay) or qh.PROJECTinput)
1478  adjust user flags as needed
1479  also checks DIM3 dependencies and constants
1480 
1481  notes:
1482  do not use qh_point() since an input transformation may move them elsewhere
1483 
1484  see:
1485  qh_initqhull_start() sets default values for non-zero globals
1486 
1487  design:
1488  initialize points array from input arguments
1489  test for qh.ZEROcentrum
1490  (i.e., use opposite vertex instead of cetrum for convexity testing)
1491  initialize qh.CENTERtype, qh.normal_size,
1492  qh.center_size, qh.TRACEpoint/level,
1493  initialize and test random numbers
1494  qh_initqhull_outputflags() -- adjust and test output flags
1495 */
1496 void qh_initqhull_globals(coordT *points, int numpoints, int dim, boolT ismalloc) {
1497  int seed, pointsneeded, extra= 0, i, randi, k;
1498  realT randr;
1499  realT factorial;
1500 
1501  time_t timedata;
1502 
1503  trace0((qh ferr, 13, "qh_initqhull_globals: for %s | %s\n", qh rbox_command,
1504  qh qhull_command));
1505  qh POINTSmalloc= ismalloc;
1506  qh first_point= points;
1507  qh num_points= numpoints;
1508  qh hull_dim= qh input_dim= dim;
1509  if (!qh NOpremerge && !qh MERGEexact && !qh PREmerge && qh JOGGLEmax > REALmax/2) {
1510  qh MERGING= True;
1511  if (qh hull_dim <= 4) {
1512  qh PREmerge= True;
1513  qh_option("_pre-merge", NULL, NULL);
1514  }else {
1515  qh MERGEexact= True;
1516  qh_option("Qxact_merge", NULL, NULL);
1517  }
1518  }else if (qh MERGEexact)
1519  qh MERGING= True;
1520  if (!qh NOpremerge && qh JOGGLEmax > REALmax/2) {
1521 #ifdef qh_NOmerge
1522  qh JOGGLEmax= 0.0;
1523 #endif
1524  }
1525  if (qh TRIangulate && qh JOGGLEmax < REALmax/2 && qh PRINTprecision)
1526  qh_fprintf(qh ferr, 7038, "qhull warning: joggle('QJ') always produces simplicial output. Triangulated output('Qt') does nothing.\n");
1527  if (qh JOGGLEmax < REALmax/2 && qh DELAUNAY && !qh SCALEinput && !qh SCALElast) {
1528  qh SCALElast= True;
1529  qh_option("Qbbound-last-qj", NULL, NULL);
1530  }
1531  if (qh MERGING && !qh POSTmerge && qh premerge_cos > REALmax/2
1532  && qh premerge_centrum == 0) {
1533  qh ZEROcentrum= True;
1534  qh ZEROall_ok= True;
1535  qh_option("_zero-centrum", NULL, NULL);
1536  }
1537  if (qh JOGGLEmax < REALmax/2 && REALepsilon > 2e-8 && qh PRINTprecision)
1538  qh_fprintf(qh ferr, 7039, "qhull warning: real epsilon, %2.2g, is probably too large for joggle('QJn')\nRecompile with double precision reals(see user.h).\n",
1539  REALepsilon);
1540 #ifdef qh_NOmerge
1541  if (qh MERGING) {
1542  qh_fprintf(qh ferr, 6045, "qhull input error: merging not installed(qh_NOmerge + 'Qx', 'Cn' or 'An')\n");
1543  qh_errexit(qh_ERRinput, NULL, NULL);
1544  }
1545 #endif
1546  if (qh DELAUNAY && qh KEEPcoplanar && !qh KEEPinside) {
1547  qh KEEPinside= True;
1548  qh_option("Qinterior-keep", NULL, NULL);
1549  }
1550  if (qh DELAUNAY && qh HALFspace) {
1551  qh_fprintf(qh ferr, 6046, "qhull input error: can not use Delaunay('d') or Voronoi('v') with halfspace intersection('H')\n");
1552  qh_errexit(qh_ERRinput, NULL, NULL);
1553  }
1554  if (!qh DELAUNAY && (qh UPPERdelaunay || qh ATinfinity)) {
1555  qh_fprintf(qh ferr, 6047, "qhull input error: use upper-Delaunay('Qu') or infinity-point('Qz') with Delaunay('d') or Voronoi('v')\n");
1556  qh_errexit(qh_ERRinput, NULL, NULL);
1557  }
1558  if (qh UPPERdelaunay && qh ATinfinity) {
1559  qh_fprintf(qh ferr, 6048, "qhull input error: can not use infinity-point('Qz') with upper-Delaunay('Qu')\n");
1560  qh_errexit(qh_ERRinput, NULL, NULL);
1561  }
1562  if (qh SCALElast && !qh DELAUNAY && qh PRINTprecision)
1563  qh_fprintf(qh ferr, 7040, "qhull input warning: option 'Qbb' (scale-last-coordinate) is normally used with 'd' or 'v'\n");
1564  qh DOcheckmax= (!qh SKIPcheckmax && qh MERGING );
1565  qh KEEPnearinside= (qh DOcheckmax && !(qh KEEPinside && qh KEEPcoplanar)
1566  && !qh NOnearinside);
1567  if (qh MERGING)
1568  qh CENTERtype= qh_AScentrum;
1569  else if (qh VORONOI)
1570  qh CENTERtype= qh_ASvoronoi;
1571  if (qh TESTvneighbors && !qh MERGING) {
1572  qh_fprintf(qh ferr, 6049, "qhull input error: test vertex neighbors('Qv') needs a merge option\n");
1573  qh_errexit(qh_ERRinput, NULL ,NULL);
1574  }
1575  if (qh PROJECTinput || (qh DELAUNAY && qh PROJECTdelaunay)) {
1576  qh hull_dim -= qh PROJECTinput;
1577  if (qh DELAUNAY) {
1578  qh hull_dim++;
1579  if (qh ATinfinity)
1580  extra= 1;
1581  }
1582  }
1583  if (qh hull_dim <= 1) {
1584  qh_fprintf(qh ferr, 6050, "qhull error: dimension %d must be > 1\n", qh hull_dim);
1585  qh_errexit(qh_ERRinput, NULL, NULL);
1586  }
1587  for (k=2, factorial=1.0; k < qh hull_dim; k++)
1588  factorial *= k;
1589  qh AREAfactor= 1.0 / factorial;
1590  trace2((qh ferr, 2005, "qh_initqhull_globals: initialize globals. dim %d numpoints %d malloc? %d projected %d to hull_dim %d\n",
1591  dim, numpoints, ismalloc, qh PROJECTinput, qh hull_dim));
1592  qh normal_size= qh hull_dim * sizeof(coordT);
1593  qh center_size= qh normal_size - sizeof(coordT);
1594  pointsneeded= qh hull_dim+1;
1595  if (qh hull_dim > qh_DIMmergeVertex) {
1596  qh MERGEvertices= False;
1597  qh_option("Q3-no-merge-vertices-dim-high", NULL, NULL);
1598  }
1599  if (qh GOODpoint)
1600  pointsneeded++;
1601 #ifdef qh_NOtrace
1602  if (qh IStracing) {
1603  qh_fprintf(qh ferr, 6051, "qhull input error: tracing is not installed(qh_NOtrace in user.h)");
1604  qh_errexit(qh_ERRqhull, NULL, NULL);
1605  }
1606 #endif
1607  if (qh RERUN > 1) {
1608  qh TRACElastrun= qh IStracing; /* qh_build_withrestart duplicates next conditional */
1609  if (qh IStracing != -1)
1610  qh IStracing= 0;
1611  }else if (qh TRACEpoint != qh_IDunknown || qh TRACEdist < REALmax/2 || qh TRACEmerge) {
1612  qh TRACElevel= (qh IStracing? qh IStracing : 3);
1613  qh IStracing= 0;
1614  }
1615  if (qh ROTATErandom == 0 || qh ROTATErandom == -1) {
1616  seed= (int)time(&timedata);
1617  if (qh ROTATErandom == -1) {
1618  seed= -seed;
1619  qh_option("QRandom-seed", &seed, NULL );
1620  }else
1621  qh_option("QRotate-random", &seed, NULL);
1622  qh ROTATErandom= seed;
1623  }
1624  seed= qh ROTATErandom;
1625  if (seed == INT_MIN) /* default value */
1626  seed= 1;
1627  else if (seed < 0)
1628  seed= -seed;
1629  qh_RANDOMseed_(seed);
1630  randr= 0.0;
1631  for (i=1000; i--; ) {
1632  randi= qh_RANDOMint;
1633  randr += randi;
1634  if (randi > qh_RANDOMmax) {
1635  qh_fprintf(qh ferr, 8036, "\
1636 qhull configuration error (qh_RANDOMmax in user.h):\n\
1637  random integer %d > qh_RANDOMmax(%.8g)\n",
1638  randi, qh_RANDOMmax);
1639  qh_errexit(qh_ERRinput, NULL, NULL);
1640  }
1641  }
1642  qh_RANDOMseed_(seed);
1643  randr = randr/1000;
1644  if (randr < qh_RANDOMmax * 0.1
1645  || randr > qh_RANDOMmax * 0.9)
1646  qh_fprintf(qh ferr, 8037, "\
1647 qhull configuration warning (qh_RANDOMmax in user.h):\n\
1648  average of 1000 random integers (%.2g) is much different than expected (%.2g).\n\
1649  Is qh_RANDOMmax (%.2g) wrong?\n",
1650  randr, qh_RANDOMmax * 0.5, qh_RANDOMmax);
1651  qh RANDOMa= 2.0 * qh RANDOMfactor/qh_RANDOMmax;
1652  qh RANDOMb= 1.0 - qh RANDOMfactor;
1653  if (qh_HASHfactor < 1.1) {
1654  qh_fprintf(qh ferr, 6052, "qhull internal error (qh_initqhull_globals): qh_HASHfactor %d must be at least 1.1. Qhull uses linear hash probing\n",
1655  qh_HASHfactor);
1656  qh_errexit(qh_ERRqhull, NULL, NULL);
1657  }
1658  if (numpoints+extra < pointsneeded) {
1659  qh_fprintf(qh ferr, 6214, "qhull input error: not enough points(%d) to construct initial simplex (need %d)\n",
1660  numpoints, pointsneeded);
1661  qh_errexit(qh_ERRinput, NULL, NULL);
1662  }
1663  qh_initqhull_outputflags();
1664 } /* initqhull_globals */
1665 
1666 /*-<a href="qh-globa.htm#TOC"
1667  >-------------------------------</a><a name="initqhull_mem">-</a>
1668 
1669  qh_initqhull_mem( )
1670  initialize mem.c for qhull
1671  qh.hull_dim and qh.normal_size determine some of the allocation sizes
1672  if qh.MERGING,
1673  includes ridgeT
1674  calls qh_user_memsizes() to add up to 10 additional sizes for quick allocation
1675  (see numsizes below)
1676 
1677  returns:
1678  mem.c already for qh_memalloc/qh_memfree (errors if called beforehand)
1679 
1680  notes:
1681  qh_produceoutput() prints memsizes
1682 
1683 */
1684 void qh_initqhull_mem(void) {
1685  int numsizes;
1686  int i;
1687 
1688  numsizes= 8+10;
1689  qh_meminitbuffers(qh IStracing, qh_MEMalign, numsizes,
1690  qh_MEMbufsize,qh_MEMinitbuf);
1691  qh_memsize((int)sizeof(vertexT));
1692  if (qh MERGING) {
1693  qh_memsize((int)sizeof(ridgeT));
1694  qh_memsize((int)sizeof(mergeT));
1695  }
1696  qh_memsize((int)sizeof(facetT));
1697  i= sizeof(setT) + (qh hull_dim - 1) * SETelemsize; /* ridge.vertices */
1698  qh_memsize(i);
1699  qh_memsize(qh normal_size); /* normal */
1700  i += SETelemsize; /* facet.vertices, .ridges, .neighbors */
1701  qh_memsize(i);
1702  qh_user_memsizes();
1703  qh_memsetup();
1704 } /* initqhull_mem */
1705 
1706 /*-<a href="qh-globa.htm#TOC"
1707  >-------------------------------</a><a name="initqhull_outputflags">-</a>
1708 
1709  qh_initqhull_outputflags
1710  initialize flags concerned with output
1711 
1712  returns:
1713  adjust user flags as needed
1714 
1715  see:
1716  qh_clear_outputflags() resets the flags
1717 
1718  design:
1719  test for qh.PRINTgood (i.e., only print 'good' facets)
1720  check for conflicting print output options
1721 */
1722 void qh_initqhull_outputflags(void) {
1723  boolT printgeom= False, printmath= False, printcoplanar= False;
1724  int i;
1725 
1726  trace3((qh ferr, 3024, "qh_initqhull_outputflags: %s\n", qh qhull_command));
1727  if (!(qh PRINTgood || qh PRINTneighbors)) {
1728  if (qh KEEParea || qh KEEPminArea < REALmax/2 || qh KEEPmerge || qh DELAUNAY
1729  || (!qh ONLYgood && (qh GOODvertex || qh GOODpoint))) {
1730  qh PRINTgood= True;
1731  qh_option("Pgood", NULL, NULL);
1732  }
1733  }
1734  if (qh PRINTtransparent) {
1735  if (qh hull_dim != 4 || !qh DELAUNAY || qh VORONOI || qh DROPdim >= 0) {
1736  qh_fprintf(qh ferr, 6215, "qhull input error: transparent Delaunay('Gt') needs 3-d Delaunay('d') w/o 'GDn'\n");
1737  qh_errexit(qh_ERRinput, NULL, NULL);
1738  }
1739  qh DROPdim = 3;
1740  qh PRINTridges = True;
1741  }
1742  for (i=qh_PRINTEND; i--; ) {
1743  if (qh PRINTout[i] == qh_PRINTgeom)
1744  printgeom= True;
1745  else if (qh PRINTout[i] == qh_PRINTmathematica || qh PRINTout[i] == qh_PRINTmaple)
1746  printmath= True;
1747  else if (qh PRINTout[i] == qh_PRINTcoplanars)
1748  printcoplanar= True;
1749  else if (qh PRINTout[i] == qh_PRINTpointnearest)
1750  printcoplanar= True;
1751  else if (qh PRINTout[i] == qh_PRINTpointintersect && !qh HALFspace) {
1752  qh_fprintf(qh ferr, 6053, "qhull input error: option 'Fp' is only used for \nhalfspace intersection('Hn,n,n').\n");
1753  qh_errexit(qh_ERRinput, NULL, NULL);
1754  }else if (qh PRINTout[i] == qh_PRINTtriangles && (qh HALFspace || qh VORONOI)) {
1755  qh_fprintf(qh ferr, 6054, "qhull input error: option 'Ft' is not available for Voronoi vertices or halfspace intersection\n");
1756  qh_errexit(qh_ERRinput, NULL, NULL);
1757  }else if (qh PRINTout[i] == qh_PRINTcentrums && qh VORONOI) {
1758  qh_fprintf(qh ferr, 6055, "qhull input error: option 'FC' is not available for Voronoi vertices('v')\n");
1759  qh_errexit(qh_ERRinput, NULL, NULL);
1760  }else if (qh PRINTout[i] == qh_PRINTvertices) {
1761  if (qh VORONOI)
1762  qh_option("Fvoronoi", NULL, NULL);
1763  else
1764  qh_option("Fvertices", NULL, NULL);
1765  }
1766  }
1767  if (printcoplanar && qh DELAUNAY && qh JOGGLEmax < REALmax/2) {
1768  if (qh PRINTprecision)
1769  qh_fprintf(qh ferr, 7041, "qhull input warning: 'QJ' (joggle) will usually prevent coincident input sites for options 'Fc' and 'FP'\n");
1770  }
1771  if (printmath && (qh hull_dim > 3 || qh VORONOI)) {
1772  qh_fprintf(qh ferr, 6056, "qhull input error: Mathematica and Maple output is only available for 2-d and 3-d convex hulls and 2-d Delaunay triangulations\n");
1773  qh_errexit(qh_ERRinput, NULL, NULL);
1774  }
1775  if (printgeom) {
1776  if (qh hull_dim > 4) {
1777  qh_fprintf(qh ferr, 6057, "qhull input error: Geomview output is only available for 2-d, 3-d and 4-d\n");
1778  qh_errexit(qh_ERRinput, NULL, NULL);
1779  }
1780  if (qh PRINTnoplanes && !(qh PRINTcoplanar + qh PRINTcentrums
1781  + qh PRINTdots + qh PRINTspheres + qh DOintersections + qh PRINTridges)) {
1782  qh_fprintf(qh ferr, 6058, "qhull input error: no output specified for Geomview\n");
1783  qh_errexit(qh_ERRinput, NULL, NULL);
1784  }
1785  if (qh VORONOI && (qh hull_dim > 3 || qh DROPdim >= 0)) {
1786  qh_fprintf(qh ferr, 6059, "qhull input error: Geomview output for Voronoi diagrams only for 2-d\n");
1787  qh_errexit(qh_ERRinput, NULL, NULL);
1788  }
1789  /* can not warn about furthest-site Geomview output: no lower_threshold */
1790  if (qh hull_dim == 4 && qh DROPdim == -1 &&
1791  (qh PRINTcoplanar || qh PRINTspheres || qh PRINTcentrums)) {
1792  qh_fprintf(qh ferr, 7042, "qhull input warning: coplanars, vertices, and centrums output not\n\
1793 available for 4-d output(ignored). Could use 'GDn' instead.\n");
1794  qh PRINTcoplanar= qh PRINTspheres= qh PRINTcentrums= False;
1795  }
1796  }
1797  if (!qh KEEPcoplanar && !qh KEEPinside && !qh ONLYgood) {
1798  if ((qh PRINTcoplanar && qh PRINTspheres) || printcoplanar) {
1799  if (qh QHULLfinished) {
1800  qh_fprintf(qh ferr, 7072, "qhull output warning: ignoring coplanar points, option 'Qc' was not set for the first run of qhull.\n");
1801  }else {
1802  qh KEEPcoplanar = True;
1803  qh_option("Qcoplanar", NULL, NULL);
1804  }
1805  }
1806  }
1807  qh PRINTdim= qh hull_dim;
1808  if (qh DROPdim >=0) { /* after Geomview checks */
1809  if (qh DROPdim < qh hull_dim) {
1810  qh PRINTdim--;
1811  if (!printgeom || qh hull_dim < 3)
1812  qh_fprintf(qh ferr, 7043, "qhull input warning: drop dimension 'GD%d' is only available for 3-d/4-d Geomview\n", qh DROPdim);
1813  }else
1814  qh DROPdim= -1;
1815  }else if (qh VORONOI) {
1816  qh DROPdim= qh hull_dim-1;
1817  qh PRINTdim= qh hull_dim-1;
1818  }
1819 } /* qh_initqhull_outputflags */
1820 
1821 /*-<a href="qh-globa.htm#TOC"
1822  >-------------------------------</a><a name="initqhull_start">-</a>
1823 
1824  qh_initqhull_start( infile, outfile, errfile )
1825  allocate memory if needed and call qh_initqhull_start2()
1826 */
1827 void qh_initqhull_start(FILE *infile, FILE *outfile, FILE *errfile) {
1828 
1829 #if qh_QHpointer
1830  if (qh_qh) {
1831  qh_fprintf(errfile, 6205, "qhull error (qh_initqhull_start): qh_qh already defined. Call qh_save_qhull() first\n");
1832  qh_exit(qh_ERRqhull); /* no error handler */
1833  }
1834  if (!(qh_qh= (qhT *)qh_malloc(sizeof(qhT)))) {
1835  qh_fprintf(errfile, 6060, "qhull error (qh_initqhull_start): insufficient memory\n");
1836  qh_exit(qh_ERRmem); /* no error handler */
1837  }
1838 #endif
1839  qh_initstatistics();
1840  qh_initqhull_start2(infile, outfile, errfile);
1841 } /* initqhull_start */
1842 
1843 /*-<a href="qh-globa.htm#TOC"
1844  >-------------------------------</a><a name="initqhull_start2">-</a>
1845 
1846  qh_initqhull_start2( infile, outfile, errfile )
1847  start initialization of qhull
1848  initialize statistics, stdio, default values for global variables
1849  assumes qh_qh is defined
1850  notes:
1851  report errors elsewhere, error handling and g_qhull_output [Qhull.cpp, QhullQh()] not in initialized
1852  see:
1853  qh_maxmin() determines the precision constants
1854  qh_freeqhull2()
1855 */
1856 void qh_initqhull_start2(FILE *infile, FILE *outfile, FILE *errfile) {
1857  time_t timedata;
1858  int seed;
1859 
1860  qh_CPUclock; /* start the clock(for qh_clock). One-shot. */
1861 #if qh_QHpointer
1862  memset((char *)qh_qh, 0, sizeof(qhT)); /* every field is 0, FALSE, NULL */
1863 #else
1864  memset((char *)&qh_qh, 0, sizeof(qhT));
1865 #endif
1866  qh ANGLEmerge= True;
1867  qh DROPdim= -1;
1868  qh ferr= errfile;
1869  qh fin= infile;
1870  qh fout= outfile;
1871  qh furthest_id= qh_IDunknown;
1872  qh JOGGLEmax= REALmax;
1873  qh KEEPminArea = REALmax;
1874  qh last_low= REALmax;
1875  qh last_high= REALmax;
1876  qh last_newhigh= REALmax;
1877  qh max_outside= 0.0;
1878  qh max_vertex= 0.0;
1879  qh MAXabs_coord= 0.0;
1880  qh MAXsumcoord= 0.0;
1881  qh MAXwidth= -REALmax;
1882  qh MERGEindependent= True;
1883  qh MINdenom_1= fmax_(1.0/REALmax, REALmin); /* used by qh_scalepoints */
1884  qh MINoutside= 0.0;
1885  qh MINvisible= REALmax;
1886  qh MAXcoplanar= REALmax;
1887  qh outside_err= REALmax;
1888  qh premerge_centrum= 0.0;
1889  qh premerge_cos= REALmax;
1890  qh PRINTprecision= True;
1891  qh PRINTradius= 0.0;
1892  qh postmerge_cos= REALmax;
1893  qh postmerge_centrum= 0.0;
1894  qh ROTATErandom= INT_MIN;
1895  qh MERGEvertices= True;
1896  qh totarea= 0.0;
1897  qh totvol= 0.0;
1898  qh TRACEdist= REALmax;
1899  qh TRACEpoint= qh_IDunknown; /* recompile or use 'TPn' */
1900  qh tracefacet_id= UINT_MAX; /* recompile to trace a facet */
1901  qh tracevertex_id= UINT_MAX; /* recompile to trace a vertex */
1902  seed= (int)time(&timedata);
1903  qh_RANDOMseed_(seed);
1904  qh run_id= qh_RANDOMint;
1905  if(!qh run_id)
1906  qh run_id++; /* guarantee non-zero */
1907  qh_option("run-id", &qh run_id, NULL);
1908  strcat(qh qhull, "qhull");
1909 } /* initqhull_start2 */
1910 
1911 /*-<a href="qh-globa.htm#TOC"
1912  >-------------------------------</a><a name="initthresholds">-</a>
1913 
1914  qh_initthresholds( commandString )
1915  set thresholds for printing and scaling from commandString
1916 
1917  returns:
1918  sets qh.GOODthreshold or qh.SPLITthreshold if 'Pd0D1' used
1919 
1920  see:
1921  qh_initflags(), 'Qbk' 'QBk' 'Pdk' and 'PDk'
1922  qh_inthresholds()
1923 
1924  design:
1925  for each 'Pdn' or 'PDn' option
1926  check syntax
1927  set qh.lower_threshold or qh.upper_threshold
1928  set qh.GOODthreshold if an unbounded threshold is used
1929  set qh.SPLITthreshold if a bounded threshold is used
1930 */
1931 void qh_initthresholds(char *command) {
1932  realT value;
1933  int idx, maxdim, k;
1934  char *s= command; /* non-const due to strtol */
1935  char key;
1936 
1937  maxdim= qh input_dim;
1938  if (qh DELAUNAY && (qh PROJECTdelaunay || qh PROJECTinput))
1939  maxdim++;
1940  while (*s) {
1941  if (*s == '-')
1942  s++;
1943  if (*s == 'P') {
1944  s++;
1945  while (*s && !isspace(key= *s++)) {
1946  if (key == 'd' || key == 'D') {
1947  if (!isdigit(*s)) {
1948  qh_fprintf(qh ferr, 7044, "qhull warning: no dimension given for Print option '%c' at: %s. Ignored\n",
1949  key, s-1);
1950  continue;
1951  }
1952  idx= qh_strtol(s, &s);
1953  if (idx >= qh hull_dim) {
1954  qh_fprintf(qh ferr, 7045, "qhull warning: dimension %d for Print option '%c' is >= %d. Ignored\n",
1955  idx, key, qh hull_dim);
1956  continue;
1957  }
1958  if (*s == ':') {
1959  s++;
1960  value= qh_strtod(s, &s);
1961  if (fabs((double)value) > 1.0) {
1962  qh_fprintf(qh ferr, 7046, "qhull warning: value %2.4g for Print option %c is > +1 or < -1. Ignored\n",
1963  value, key);
1964  continue;
1965  }
1966  }else
1967  value= 0.0;
1968  if (key == 'd')
1969  qh lower_threshold[idx]= value;
1970  else
1971  qh upper_threshold[idx]= value;
1972  }
1973  }
1974  }else if (*s == 'Q') {
1975  s++;
1976  while (*s && !isspace(key= *s++)) {
1977  if (key == 'b' && *s == 'B') {
1978  s++;
1979  for (k=maxdim; k--; ) {
1980  qh lower_bound[k]= -qh_DEFAULTbox;
1981  qh upper_bound[k]= qh_DEFAULTbox;
1982  }
1983  }else if (key == 'b' && *s == 'b')
1984  s++;
1985  else if (key == 'b' || key == 'B') {
1986  if (!isdigit(*s)) {
1987  qh_fprintf(qh ferr, 7047, "qhull warning: no dimension given for Qhull option %c. Ignored\n",
1988  key);
1989  continue;
1990  }
1991  idx= qh_strtol(s, &s);
1992  if (idx >= maxdim) {
1993  qh_fprintf(qh ferr, 7048, "qhull warning: dimension %d for Qhull option %c is >= %d. Ignored\n",
1994  idx, key, maxdim);
1995  continue;
1996  }
1997  if (*s == ':') {
1998  s++;
1999  value= qh_strtod(s, &s);
2000  }else if (key == 'b')
2001  value= -qh_DEFAULTbox;
2002  else
2003  value= qh_DEFAULTbox;
2004  if (key == 'b')
2005  qh lower_bound[idx]= value;
2006  else
2007  qh upper_bound[idx]= value;
2008  }
2009  }
2010  }else {
2011  while (*s && !isspace(*s))
2012  s++;
2013  }
2014  while (isspace(*s))
2015  s++;
2016  }
2017  for (k=qh hull_dim; k--; ) {
2018  if (qh lower_threshold[k] > -REALmax/2) {
2019  qh GOODthreshold= True;
2020  if (qh upper_threshold[k] < REALmax/2) {
2021  qh SPLITthresholds= True;
2022  qh GOODthreshold= False;
2023  break;
2024  }
2025  }else if (qh upper_threshold[k] < REALmax/2)
2026  qh GOODthreshold= True;
2027  }
2028 } /* initthresholds */
2029 
2030 /*-<a href="qh-globa.htm#TOC"
2031  >-------------------------------</a><a name="lib_check">-</a>
2032 
2033  qh_lib_check( qhullLibraryType, qhTsize, vertexTsize, ridgeTsize, facetTsize, setTsize, qhmemTsize )
2034  Report error if library does not agree with caller
2035 
2036  notes:
2037  NOerrors -- qh_lib_check can not call qh_errexit()
2038 */
2039 void qh_lib_check(int qhullLibraryType, int qhTsize, int vertexTsize, int ridgeTsize, int facetTsize, int setTsize, int qhmemTsize) {
2040  boolT iserror= False;
2041 
2042 #if defined(_MSC_VER) && defined(_DEBUG) && defined(QHULL_CRTDBG) /* user_r.h */
2043  // _CrtSetBreakAlloc(744); /* Break at memalloc {744}, or 'watch' _crtBreakAlloc */
2044  _CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_DELAY_FREE_MEM_DF | _CRTDBG_LEAK_CHECK_DF | _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) );
2045  _CrtSetReportMode( _CRT_ERROR, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG );
2046  _CrtSetReportFile( _CRT_ERROR, _CRTDBG_FILE_STDERR );
2047  _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG );
2048  _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
2049  _CrtSetReportMode( _CRT_ASSERT, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG );
2050  _CrtSetReportFile( _CRT_ASSERT, _CRTDBG_FILE_STDERR );
2051 #endif
2052 
2053  if (qhullLibraryType==QHULL_NON_REENTRANT) { /* 0 */
2054  if (qh_QHpointer) {
2055  qh_fprintf_stderr(6246, "qh_lib_check: Incorrect qhull library called. Caller uses a static qhT while library uses a dynamic qhT via qh_QHpointer. Both caller and library are non-reentrant.\n");
2056  iserror= True;
2057  }
2058  }else if (qhullLibraryType==QHULL_QH_POINTER) { /* 1 */
2059  if (!qh_QHpointer) {
2060  qh_fprintf_stderr(6247, "qh_lib_check: Incorrect qhull library called. Caller uses a dynamic qhT via qh_QHpointer while library uses a static qhT. Both caller and library are non-reentrant.\n");
2061  iserror= True;
2062  }
2063  }else if (qhullLibraryType==QHULL_REENTRANT) { /* 2 */
2064  qh_fprintf_stderr(6248, "qh_lib_check: Incorrect qhull library called. Caller uses reentrant Qhull while library is non-reentrant\n");
2065  iserror= True;
2066  }else{
2067  qh_fprintf_stderr(6262, "qh_lib_check: Expecting qhullLibraryType QHULL_NON_REENTRANT(0), QHULL_QH_POINTER(1), or QHULL_REENTRANT(2). Got %d\n", qhullLibraryType);
2068  iserror= True;
2069  }
2070  if (qhTsize != sizeof(qhT)) {
2071  qh_fprintf_stderr(6249, "qh_lib_check: Incorrect qhull library called. Size of qhT for caller is %d, but for library is %d.\n", qhTsize, sizeof(qhT));
2072  iserror= True;
2073  }
2074  if (vertexTsize != sizeof(vertexT)) {
2075  qh_fprintf_stderr(6250, "qh_lib_check: Incorrect qhull library called. Size of vertexT for caller is %d, but for library is %d.\n", vertexTsize, sizeof(vertexT));
2076  iserror= True;
2077  }
2078  if (ridgeTsize != sizeof(ridgeT)) {
2079  qh_fprintf_stderr(6251, "qh_lib_check: Incorrect qhull library called. Size of ridgeT for caller is %d, but for library is %d.\n", ridgeTsize, sizeof(ridgeT));
2080  iserror= True;
2081  }
2082  if (facetTsize != sizeof(facetT)) {
2083  qh_fprintf_stderr(6252, "qh_lib_check: Incorrect qhull library called. Size of facetT for caller is %d, but for library is %d.\n", facetTsize, sizeof(facetT));
2084  iserror= True;
2085  }
2086  if (setTsize && setTsize != sizeof(setT)) {
2087  qh_fprintf_stderr(6253, "qh_lib_check: Incorrect qhull library called. Size of setT for caller is %d, but for library is %d.\n", setTsize, sizeof(setT));
2088  iserror= True;
2089  }
2090  if (qhmemTsize && qhmemTsize != sizeof(qhmemT)) {
2091  qh_fprintf_stderr(6254, "qh_lib_check: Incorrect qhull library called. Size of qhmemT for caller is %d, but for library is %d.\n", qhmemTsize, sizeof(qhmemT));
2092  iserror= True;
2093  }
2094  if (iserror) {
2095  if(qh_QHpointer){
2096  qh_fprintf_stderr(6255, "qh_lib_check: Cannot continue. Library '%s' uses a dynamic qhT via qh_QHpointer (e.g., qhull_p.so)\n", qh_version2);
2097  }else{
2098  qh_fprintf_stderr(6256, "qh_lib_check: Cannot continue. Library '%s' uses a static qhT (e.g., libqhull.so)\n", qh_version2);
2099  }
2100  qh_exit(qh_ERRqhull); /* can not use qh_errexit() */
2101  }
2102 } /* lib_check */
2103 
2104 /*-<a href="qh-globa.htm#TOC"
2105  >-------------------------------</a><a name="option">-</a>
2106 
2107  qh_option( option, intVal, realVal )
2108  add an option description to qh.qhull_options
2109 
2110  notes:
2111  NOerrors -- qh_option can not call qh_errexit() [qh_initqhull_start2]
2112  will be printed with statistics ('Ts') and errors
2113  strlen(option) < 40
2114 */
2115 void qh_option(const char *option, int *i, realT *r) {
2116  char buf[200];
2117  int len, maxlen;
2118 
2119  sprintf(buf, " %s", option);
2120  if (i)
2121  sprintf(buf+strlen(buf), " %d", *i);
2122  if (r)
2123  sprintf(buf+strlen(buf), " %2.2g", *r);
2124  len= (int)strlen(buf); /* WARN64 */
2125  qh qhull_optionlen += len;
2126  maxlen= sizeof(qh qhull_options) - len -1;
2127  maximize_(maxlen, 0);
2128  if (qh qhull_optionlen >= qh_OPTIONline && maxlen > 0) {
2129  qh qhull_optionlen= len;
2130  strncat(qh qhull_options, "\n", (size_t)(maxlen--));
2131  }
2132  strncat(qh qhull_options, buf, (size_t)maxlen);
2133 } /* option */
2134 
2135 #if qh_QHpointer
2136 /*-<a href="qh-globa.htm#TOC"
2137  >-------------------------------</a><a name="restore_qhull">-</a>
2138 
2139  qh_restore_qhull( oldqh )
2140  restores a previously saved qhull
2141  also restores qh_qhstat and qhmem.tempstack
2142  Sets *oldqh to NULL
2143  notes:
2144  errors if current qhull hasn't been saved or freed
2145  uses qhmem for error reporting
2146 
2147  NOTE 1998/5/11:
2148  Freeing memory after qh_save_qhull and qh_restore_qhull
2149  is complicated. The procedures will be redesigned.
2150 
2151  see:
2152  qh_save_qhull(), UsingLibQhull
2153 */
2154 void qh_restore_qhull(qhT **oldqh) {
2155 
2156  if (*oldqh && strcmp((*oldqh)->qhull, "qhull")) {
2157  qh_fprintf(qhmem.ferr, 6061, "qhull internal error (qh_restore_qhull): %p is not a qhull data structure\n",
2158  *oldqh);
2159  qh_errexit(qh_ERRqhull, NULL, NULL);
2160  }
2161  if (qh_qh) {
2162  qh_fprintf(qhmem.ferr, 6062, "qhull internal error (qh_restore_qhull): did not save or free existing qhull\n");
2163  qh_errexit(qh_ERRqhull, NULL, NULL);
2164  }
2165  if (!*oldqh || !(*oldqh)->old_qhstat) {
2166  qh_fprintf(qhmem.ferr, 6063, "qhull internal error (qh_restore_qhull): did not previously save qhull %p\n",
2167  *oldqh);
2168  qh_errexit(qh_ERRqhull, NULL, NULL);
2169  }
2170  qh_qh= *oldqh;
2171  *oldqh= NULL;
2172  qh_qhstat= qh old_qhstat;
2173  qhmem.tempstack= qh old_tempstack;
2174  qh old_qhstat= 0;
2175  qh old_tempstack= 0;
2176  trace1((qh ferr, 1007, "qh_restore_qhull: restored qhull from %p\n", *oldqh));
2177 } /* restore_qhull */
2178 
2179 /*-<a href="qh-globa.htm#TOC"
2180  >-------------------------------</a><a name="save_qhull">-</a>
2181 
2182  qh_save_qhull( )
2183  saves qhull for a later qh_restore_qhull
2184  also saves qh_qhstat and qhmem.tempstack
2185 
2186  returns:
2187  qh_qh=NULL
2188 
2189  notes:
2190  need to initialize qhull or call qh_restore_qhull before continuing
2191 
2192  NOTE 1998/5/11:
2193  Freeing memory after qh_save_qhull and qh_restore_qhull
2194  is complicated. The procedures will be redesigned.
2195 
2196  see:
2197  qh_restore_qhull()
2198 */
2199 qhT *qh_save_qhull(void) {
2200  qhT *oldqh;
2201 
2202  trace1((qhmem.ferr, 1045, "qh_save_qhull: save qhull %p\n", qh_qh));
2203  if (!qh_qh) {
2204  qh_fprintf(qhmem.ferr, 6064, "qhull internal error (qh_save_qhull): qhull not initialized\n");
2205  qh_errexit(qh_ERRqhull, NULL, NULL);
2206  }
2207  qh old_qhstat= qh_qhstat;
2208  qh_qhstat= NULL;
2209  qh old_tempstack= qhmem.tempstack;
2210  qhmem.tempstack= NULL;
2211  oldqh= qh_qh;
2212  qh_qh= NULL;
2213  return oldqh;
2214 } /* save_qhull */
2215 
2216 #endif
2217 
qh_ERRinput
#define qh_ERRinput
Definition: libqhull.h:194
qh_strtod
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Definition: mem.c:62
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Definition: user.h:456
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@ qh_PRINTpointintersect
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