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root/group/trunk/OOPSE/utils/quickLate.c
Revision: 1108
Committed: Wed Apr 14 15:37:41 2004 UTC (20 years, 2 months ago) by tim
Content type: text/plain
File size: 20554 byte(s)
Log Message:
Change DumpWriter and InitFromFile

File Contents

# Content
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <math.h>
5 #include <unistd.h>
6 #include <sys/types.h>
7 #include <sys/stat.h>
8
9 inline double roundMe( double x ){
10 return ( x >= 0 ) ? floor( x + 0.5 ) : ceil( x - 0.5 );
11 }
12
13 struct coords{
14 double pos[3]; // cartesian coords
15 double q[4]; // the quanternions
16 char name[30];
17 };
18
19 struct linked_xyz{
20 struct coords *r;
21 double time;
22 double Hmat[3][3];
23 double HmatI[3][3];
24 struct linked_xyz *next;
25 };
26
27 char *program_name; /*the name of the program */
28 int printWater = 0;
29 int printDipole = 0;
30
31 void usage(void);
32
33 void rotWrite( FILE* out_file, struct coords* theSSD );
34
35 void setRot( double A[3][3], double q[4] );
36
37 void rotMe( double A[3][3], double r[3] );
38 void wrapVector( double thePos[3], double Hmat[3][3], double HmatI[3][3]);
39 double matDet3(double a[3][3]);
40 void invertMat3(double a[3][3], double b[3][3]);
41 void matVecMul3(double m[3][3], double inVec[3], double outVec[3]);
42
43 int main(argc, argv)
44 int argc;
45 char *argv[];
46 {
47
48
49 struct coords *out_coords;
50
51 int i, j, k, l, m; /* loop counters */
52 mode_t dir_mode = S_IRWXU;
53
54 int lineCount = 0; //the line number
55 int newN; // the new number of atoms
56 int nSSD=0; // the number of SSD per frame
57
58 unsigned int nAtoms; /*the number of atoms in each time step */
59 char read_buffer[1000]; /*the line buffer for reading */
60 char *eof_test; /*ptr to see when we reach the end of the file */
61 char *foo; /*the pointer to the current string token */
62 FILE *in_file; /* the input file */
63 FILE *out_file; /*the output file */
64 char *out_prefix = NULL; /*the prefix of the output file */
65 char out_name[500]; /*the output name */
66 int have_outName =0;
67 char in_name[500]; // the input file name
68 char temp_name[500];
69 char *root_name = NULL; /*the root name of the input file */
70 unsigned int n_out = 0; /*keeps track of which output file is being written*/
71
72
73 int skipFrames = 1;
74
75 struct linked_xyz *current_frame;
76 struct linked_xyz *temp_frame;
77
78 int nframes =0;
79
80 int wrap = 0;
81
82 double cX = 0.0;
83 double cY = 0.0;
84 double cZ = 0.0;
85
86 double mcX, mcY, mcZ;
87 double newCX, newCY, newCZ;
88 double dx, dy, dz;
89 int mcount;
90
91 int repeatX = 0;
92 int repeatY = 0;
93 int repeatZ = 0;
94
95 int nRepeatX = 0;
96 int nRepeatY = 0;
97 int nRepeatZ = 0;
98
99 struct coords* rCopy;
100
101 int done;
102 char current_flag;
103
104 program_name = argv[0]; /*save the program name in case we need it*/
105
106 for( i = 1; i < argc; i++){
107
108 if(argv[i][0] =='-'){
109
110 if(argv[i][1] == '-' ){
111
112 // parse long word options
113
114 if( !strcmp( argv[i], "--repeatX" ) ){
115 repeatX = 1;
116 i++;
117 nRepeatX = atoi( argv[i] );
118 }
119
120 else if( !strcmp( argv[i], "--repeatY" ) ){
121 repeatY = 1;
122 i++;
123 nRepeatY = atoi( argv[i] );
124 }
125
126 else if( !strcmp( argv[i], "--repeatZ" ) ){
127 repeatZ = 1;
128 i++;
129 nRepeatZ = atoi( argv[i] );
130 }
131
132 else{
133 fprintf( stderr,
134 "Invalid option \"%s\"\n", argv[i] );
135 usage();
136 }
137 }
138
139 else{
140
141 // parse single character options
142
143 done =0;
144 j = 1;
145 current_flag = argv[i][j];
146 while( (current_flag != '\0') && (!done) ){
147
148 switch(current_flag){
149
150 case 'o':
151 // -o <prefix> => the output
152
153 i++;
154 strcpy( out_name, argv[i] );
155 have_outName = 1;
156 done = 1;
157 break;
158
159 case 'n':
160 // -n <#> => print every <#> frames
161
162 i++;
163 skipFrames = atoi(argv[i]);
164 done = 1;
165 break;
166
167 case 'h':
168 // -h => give the usage
169
170 usage();
171 break;
172
173 case 'd':
174 // print the dipoles
175
176 printDipole = 1;
177 break;
178
179 case 'w':
180 // print the waters
181
182 printWater = 1;
183 break;
184
185 case 'm':
186 // map to a periodic box
187
188 wrap = 1;
189 break;
190
191 default:
192
193 (void)fprintf(stderr, "Bad option \"-%s\"\n", current_flag);
194 usage();
195 }
196 j++;
197 current_flag = argv[i][j];
198 }
199 }
200 }
201
202 else{
203
204 if( root_name != NULL ){
205 fprintf( stderr,
206 "Error at \"%s\", program does not currently support\n"
207 "more than one input file.\n"
208 "\n",
209 argv[i]);
210 usage();
211 }
212
213 root_name = argv[i];
214 }
215 }
216
217 if(root_name == NULL){
218 usage();
219 }
220
221 sprintf( in_name, "%s", root_name );
222 if( !have_outName ) sprintf( out_name, "%s.xyz", root_name );
223
224 in_file = fopen(in_name, "r");
225 if(in_file == NULL){
226 printf("Cannot open file \"%s\" for reading.\n", in_name);
227 exit(8);
228 }
229
230 out_file = fopen( out_name, "w" );
231 if( out_file == NULL ){
232 printf("Cannot open file \"%s\" for writing.\n", out_name);
233 exit(8);
234 }
235
236 // start reading the first frame
237
238 eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
239 lineCount++;
240
241 current_frame = (struct linked_xyz *)malloc(sizeof(struct linked_xyz));
242 current_frame->next = NULL;
243
244
245 while(eof_test != NULL){
246
247 (void)sscanf(read_buffer, "%d", &nAtoms);
248 current_frame->r =
249 (struct coords *)calloc(nAtoms, sizeof(struct coords));
250
251 // read and the comment line and grab the time and box dimensions
252
253 eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
254 lineCount++;
255 if(eof_test == NULL){
256 printf("error in reading file at line: %d\n", lineCount);
257 exit(8);
258 }
259
260 foo = strtok( read_buffer, " ,;\t" );
261 sscanf( read_buffer, "%lf", &current_frame->time );
262
263 foo = strtok(NULL, " ,;\t");
264 if(foo == NULL){
265 printf("error in reading file at line: %d\n", lineCount);
266 exit(8);
267 }
268 (void)sscanf(foo, "%lf",&current_frame->Hmat[0][0]);
269
270 foo = strtok(NULL, " ,;\t");
271 if(foo == NULL){
272 printf("error in reading file at line: %d\n", lineCount);
273 exit(8);
274 }
275 (void)sscanf(foo, "%lf",&current_frame->Hmat[1][0]);
276
277 foo = strtok(NULL, " ,;\t");
278 if(foo == NULL){
279 printf("error in reading file at line: %d\n", lineCount);
280 exit(8);
281 }
282 (void)sscanf(foo, "%lf",&current_frame->Hmat[2][0]);
283
284 foo = strtok(NULL, " ,;\t");
285 if(foo == NULL){
286 printf("error in reading file at line: %d\n", lineCount);
287 exit(8);
288 }
289 (void)sscanf(foo, "%lf",&current_frame->Hmat[0][1]);
290
291 foo = strtok(NULL, " ,;\t");
292 if(foo == NULL){
293 printf("error in reading file at line: %d\n", lineCount);
294 exit(8);
295 }
296 (void)sscanf(foo, "%lf",&current_frame->Hmat[1][1]);
297
298 foo = strtok(NULL, " ,;\t");
299 if(foo == NULL){
300 printf("error in reading file at line: %d\n", lineCount);
301 exit(8);
302 }
303 (void)sscanf(foo, "%lf",&current_frame->Hmat[2][1]);
304
305 foo = strtok(NULL, " ,;\t");
306 if(foo == NULL){
307 printf("error in reading file at line: %d\n", lineCount);
308 exit(8);
309 }
310 (void)sscanf(foo, "%lf",&current_frame->Hmat[0][2]);
311
312 foo = strtok(NULL, " ,;\t");
313 if(foo == NULL){
314 printf("error in reading file at line: %d\n", lineCount);
315 exit(8);
316 }
317 (void)sscanf(foo, "%lf",&current_frame->Hmat[1][2]);
318
319 foo = strtok(NULL, " ,;\t");
320 if(foo == NULL){
321 printf("error in reading file at line: %d\n", lineCount);
322 exit(8);
323 }
324 (void)sscanf(foo, "%lf",&current_frame->Hmat[2][2]);
325
326
327 // Find HmatI:
328
329 invertMat3(current_frame->Hmat, current_frame->HmatI);
330
331
332 for( i=0; i < nAtoms; i++){
333
334 eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
335 lineCount++;
336 if(eof_test == NULL){
337 printf("error in reading file at line: %d\n", lineCount);
338 exit(8);
339 }
340
341 foo = strtok(read_buffer, " ,;\t");
342 if ( !strcmp( "SSD", foo ) ) nSSD++;
343 (void)strcpy(current_frame->r[i].name, foo); //copy the atom name
344
345 // next we grab the positions
346
347 foo = strtok(NULL, " ,;\t");
348 if(foo == NULL){
349 printf("error in reading postition x from %s\n"
350 "natoms = %d, line = %d\n",
351 in_name, nAtoms, lineCount );
352 exit(8);
353 }
354 (void)sscanf( foo, "%lf", &current_frame->r[i].pos[0] );
355
356 foo = strtok(NULL, " ,;\t");
357 if(foo == NULL){
358 printf("error in reading postition y from %s\n"
359 "natoms = %d, line = %d\n",
360 in_name, nAtoms, lineCount );
361 exit(8);
362 }
363 (void)sscanf( foo, "%lf", &current_frame->r[i].pos[1] );
364
365 foo = strtok(NULL, " ,;\t");
366 if(foo == NULL){
367 printf("error in reading postition z from %s\n"
368 "natoms = %d, line = %d\n",
369 in_name, nAtoms, lineCount );
370 exit(8);
371 }
372 (void)sscanf( foo, "%lf", &current_frame->r[i].pos[2] );
373
374 // get the velocities
375
376 foo = strtok(NULL, " ,;\t");
377 if(foo == NULL){
378 printf("error in reading velocity x from %s\n"
379 "natoms = %d, line = %d\n",
380 in_name, nAtoms, lineCount );
381 exit(8);
382 }
383
384
385 foo = strtok(NULL, " ,;\t");
386 if(foo == NULL){
387 printf("error in reading velocity y from %s\n"
388 "natoms = %d, line = %d\n",
389 in_name, nAtoms, lineCount );
390 exit(8);
391 }
392
393
394 foo = strtok(NULL, " ,;\t");
395 if(foo == NULL){
396 printf("error in reading velocity z from %s\n"
397 "natoms = %d, line = %d\n",
398 in_name, nAtoms, lineCount );
399 exit(8);
400 }
401
402 // get the quaternions
403
404 foo = strtok(NULL, " ,;\t");
405 if(foo == NULL){
406 printf("error in reading quaternion 0 from %s\n"
407 "natoms = %d, line = %d\n",
408 in_name, nAtoms, lineCount );
409 exit(8);
410 }
411 (void)sscanf( foo, "%lf", &current_frame->r[i].q[0] );
412
413 foo = strtok(NULL, " ,;\t");
414 if(foo == NULL){
415 printf("error in reading quaternion 1 from %s\n"
416 "natoms = %d, line = %d\n",
417 in_name, nAtoms, lineCount );
418 exit(8);
419 }
420 (void)sscanf( foo, "%lf", &current_frame->r[i].q[1] );
421
422 foo = strtok(NULL, " ,;\t");
423 if(foo == NULL){
424 printf("error in reading quaternion 2 from %s\n"
425 "natoms = %d, line = %d\n",
426 in_name, nAtoms, lineCount );
427 exit(8);
428 }
429 (void)sscanf( foo, "%lf", &current_frame->r[i].q[2] );
430
431 foo = strtok(NULL, " ,;\t");
432 if(foo == NULL){
433 printf("error in reading quaternion 3 from %s\n"
434 "natoms = %d, line = %d\n",
435 in_name, nAtoms, lineCount );
436 exit(8);
437 }
438 (void)sscanf( foo, "%lf", &current_frame->r[i].q[3] );
439
440 // get the angular velocities
441
442 foo = strtok(NULL, " ,;\t");
443 if(foo == NULL){
444 printf("error in reading angular momentum jx from %s\n"
445 "natoms = %d, line = %d\n",
446 in_name, nAtoms, lineCount );
447 exit(8);
448 }
449
450 foo = strtok(NULL, " ,;\t");
451 if(foo == NULL){
452 printf("error in reading angular momentum jy from %s\n"
453 "natoms = %d, line = %d\n",
454 in_name, nAtoms, lineCount );
455 exit(8);
456 }
457
458 foo = strtok(NULL, " ,;\t");
459 if(foo == NULL){
460 printf("error in reading angular momentum jz from %s\n"
461 "natoms = %d, line = %d\n",
462 in_name, nAtoms, lineCount );
463 exit(8);
464 }
465 }
466
467 // if necassary, wrap into the periodic image
468
469 if(wrap){
470
471 for( i=0; i<nAtoms; i++ ){
472
473 /*
474 if( !strcmp( current_frame->r[i].name, "HEAD" ) ){
475
476 // find the center of the lipid
477
478 mcX = 0.0;
479 mcY = 0.0;
480 mcZ = 0.0;
481 mcount = 0;
482
483 mcX += current_frame->r[i].x;
484 mcY += current_frame->r[i].y;
485 mcZ += current_frame->r[i].z;
486 mcount++;
487 i++;
488
489 while( strcmp( current_frame->r[i].name, "HEAD" ) &&
490 strcmp( current_frame->r[i].name, "SSD" ) ){
491
492 mcX += current_frame->r[i].x;
493 mcY += current_frame->r[i].y;
494 mcZ += current_frame->r[i].z;
495 mcount++;
496 i++;
497 }
498
499 mcX /= mcount;
500 mcY /= mcount;
501 mcZ /= mcount;
502
503 newCX = mcX;
504 newCY = mcY;
505 newCZ = mcZ;
506
507 map( &newCX, &newCY, &newCZ,
508 cX, cY, cZ,
509 current_frame->boxX,
510 current_frame->boxY,
511 current_frame->boxZ );
512
513 dx = mcX - newCX;
514 dy = mcY - newCY;
515 dz = mcZ - newCZ;
516
517 for(j=(i-mcount); j<mcount; j++ ){
518
519 current_frame->r[j].x -= dx;
520 current_frame->r[j].y -= dy;
521 current_frame->r[j].z -= dz;
522 }
523
524 i--; // so we don't skip the next atom
525 }
526 */
527 // else
528
529 wrapVector(current_frame->r[i].pos,
530 current_frame->Hmat,
531 current_frame->HmatI);
532
533 }
534 }
535
536 nframes++;
537
538 // write out here
539
540 if(printWater) newN = nAtoms + ( nSSD * 3 );
541 else newN = nAtoms - nSSD;
542
543 newN *= (nRepeatX+1);
544 newN *= (nRepeatY+1);
545 newN *= (nRepeatZ+1);
546
547 if( !(nframes%skipFrames) ){
548 fprintf( out_file,
549 "%d\n"
550 "%lf;\t%lf\t%lf\t%lf;\t%lf\t%lf\t%lf;\t%lf\t%lf\t%lf;\n",
551 newN, current_frame->time,
552 current_frame->Hmat[0][0], current_frame->Hmat[1][0],
553 current_frame->Hmat[2][0],
554 current_frame->Hmat[0][1], current_frame->Hmat[1][1],
555 current_frame->Hmat[2][1],
556 current_frame->Hmat[0][2], current_frame->Hmat[1][2],
557 current_frame->Hmat[2][2] );
558
559 rCopy = (struct coords*)
560 calloc( nAtoms, sizeof( struct coords ));
561
562 for(i=0; i<nAtoms; i++){
563 rCopy[i].q[0] = current_frame->r[i].q[0];
564 rCopy[i].q[1] = current_frame->r[i].q[1];
565 rCopy[i].q[2] = current_frame->r[i].q[2];
566 rCopy[i].q[3] = current_frame->r[i].q[3];
567
568 strcpy(rCopy[i].name, current_frame->r[i].name);
569 }
570
571 for(j=0; j<(nRepeatX+1); j++){
572 for(k=0; k<(nRepeatY+1); k++){
573 for(l=0; l<(nRepeatZ+1); l++){
574
575 for(i=0; i<nAtoms; i++){
576
577 for(m = 0; m < 3; m++) {
578 rCopy[i].pos[m] = current_frame->r[i].pos[m] +
579 j * current_frame->Hmat[m][0] +
580 k * current_frame->Hmat[m][1] +
581 l * current_frame->Hmat[m][2];
582 }
583
584 if( !strcmp( "SSD", rCopy[i].name ) ){
585
586 rotWrite( out_file, &rCopy[i] );
587 }
588
589 else if( !strcmp( "HEAD", rCopy[i].name ) ){
590
591 rotWrite( out_file, &rCopy[i] );
592 }
593 else{
594 //modify
595 fprintf( out_file,
596 "%s\t%lf\t%lf\t%lf\t0.0\t0.0\t0.0\n",
597 rCopy[i].name,
598 rCopy[i].pos[0],
599 rCopy[i].pos[1],
600 rCopy[i].pos[2] );
601 }
602 }
603 }
604 }
605 }
606
607 free( rCopy );
608 }
609
610 /*free up memory */
611
612 temp_frame = current_frame->next;
613 current_frame->next = NULL;
614
615 if(temp_frame != NULL){
616
617 free(temp_frame->r);
618 free(temp_frame);
619 }
620
621 /* make a new frame */
622
623 temp_frame = (struct linked_xyz *)malloc(sizeof(struct linked_xyz));
624 temp_frame->next = current_frame;
625 current_frame = temp_frame;
626
627 nSSD = 0;
628
629 eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
630 lineCount++;
631 }
632
633 (void)fclose(in_file);
634
635 return 0;
636
637 }
638
639
640
641 void rotWrite( FILE* out_file, struct coords* theDipole ){
642
643 double u[3];
644 double h1[3];
645 double h2[3];
646 double ox[3];
647
648 double A[3][3];
649
650
651 u[0] = 0.0; u[1] = 0.0; u[2] = 1.0;
652
653 h1[0] = 0.0; h1[1] = -0.75695; h1[2] = 0.5206;
654
655 h2[0] = 0.0; h2[1] = 0.75695; h2[2] = 0.5206;
656
657 ox[0] = 0.0; ox[1] = 0.0; ox[2] = -0.0654;
658
659
660 setRot( A, theDipole->q );
661 rotMe( A, u );
662
663 if( !strcmp( "SSD", theDipole->name )){
664
665 rotMe( A, h1 );
666 rotMe( A, h2 );
667 rotMe( A, ox );
668
669 if( printWater ){
670
671 if(printDipole) {
672
673 fprintf( out_file,
674 "X\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
675 theDipole->pos[0],
676 theDipole->pos[1],
677 theDipole->pos[2],
678 u[0], u[1], u[2] );
679
680 fprintf( out_file,
681 "O\t%lf\t%lf\t%lf\t0.0\t0.0\t0.0\n",
682 theDipole->pos[0] + ox[0],
683 theDipole->pos[1] + ox[1],
684 theDipole->pos[2] + ox[2] );
685
686 fprintf( out_file,
687 "H\t%lf\t%lf\t%lf\t0.0\t0.0\t0.0\n",
688 theDipole->pos[0] + h1[0],
689 theDipole->pos[1] + h1[1],
690 theDipole->pos[2] + h1[2] );
691
692 fprintf( out_file,
693 "H\t%lf\t%lf\t%lf\t0.0\t0.0\t0.0\n",
694 theDipole->pos[0] + h2[0],
695 theDipole->pos[1] + h2[1],
696 theDipole->pos[2] + h2[2] );
697 }
698 else{
699
700 fprintf( out_file,
701 "X\t%lf\t%lf\t%lf\n",
702 theDipole->pos[0],
703 theDipole->pos[1],
704 theDipole->pos[2] );
705
706 fprintf( out_file,
707 "O\t%lf\t%lf\t%lf\n",
708 theDipole->pos[0] + ox[0],
709 theDipole->pos[1] + ox[1],
710 theDipole->pos[2] + ox[2] );
711
712 fprintf( out_file,
713 "H\t%lf\t%lf\t%lf\n",
714 theDipole->pos[0] + h1[0],
715 theDipole->pos[1] + h1[1],
716 theDipole->pos[2] + h1[2] );
717
718 fprintf( out_file,
719 "H\t%lf\t%lf\t%lf\n",
720 theDipole->pos[0] + h2[0],
721 theDipole->pos[1] + h2[1],
722 theDipole->pos[2] + h2[2] );
723 }
724 }
725 }
726
727 else if( !strcmp( "HEAD", theDipole->name )) {
728
729 if( printDipole ){
730
731 fprintf( out_file,
732 "HEAD\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
733 theDipole->pos[0],
734 theDipole->pos[1],
735 theDipole->pos[2],
736 u[0], u[1], u[2] );
737 }
738 else{
739
740 fprintf( out_file,
741 "HEAD\t%lf\t%lf\t%lf\n",
742 theDipole->pos[0],
743 theDipole->pos[1],
744 theDipole->pos[2] );
745 }
746 }
747 }
748
749
750 void setRot( double A[3][3], double the_q[4] ){
751
752 double q0Sqr, q1Sqr, q2Sqr, q3Sqr;
753
754 q0Sqr = the_q[0] * the_q[0];
755 q1Sqr = the_q[1] * the_q[1];
756 q2Sqr = the_q[2] * the_q[2];
757 q3Sqr = the_q[3] * the_q[3];
758
759 A[0][0] = q0Sqr + q1Sqr - q2Sqr - q3Sqr;
760 A[0][1] = 2.0 * ( the_q[1] * the_q[2] + the_q[0] * the_q[3] );
761 A[0][2] = 2.0 * ( the_q[1] * the_q[3] - the_q[0] * the_q[2] );
762
763 A[1][0] = 2.0 * ( the_q[1] * the_q[2] - the_q[0] * the_q[3] );
764 A[1][1] = q0Sqr - q1Sqr + q2Sqr - q3Sqr;
765 A[1][2] = 2.0 * ( the_q[2] * the_q[3] + the_q[0] * the_q[1] );
766
767 A[2][0] = 2.0 * ( the_q[1] * the_q[3] + the_q[0] * the_q[2] );
768 A[2][1] = 2.0 * ( the_q[2] * the_q[3] - the_q[0] * the_q[1] );
769 A[2][2] = q0Sqr - q1Sqr -q2Sqr +q3Sqr;
770 }
771
772
773
774 void rotMe( double A[3][3], double r[3] ){
775
776 int i,j;
777 double rb[3]; // the body frame vector
778
779 for(i=0; i<3; i++ ){
780 rb[i] = r[i];
781 }
782
783 for( i=0; i<3; i++ ){
784 r[i] = 0.0;
785
786 for( j=0; j<3; j++ ){
787 r[i] += A[j][i] * rb[j];
788 }
789 }
790 }
791
792
793
794 /***************************************************************************
795 * prints out the usage for the command line arguments, then exits.
796 ***************************************************************************/
797
798 void usage(){
799 (void)fprintf(stderr,
800 "The proper usage is: %s [options] <dumpfile>\n"
801 "\n"
802 "Options:\n"
803 "\n"
804 " -h Display this message\n"
805 " -o <out_name> The output file (Defaults to <dumpfile>.xyz)\n"
806 " -d print the dipole moments\n"
807 " -w print the waters\n"
808 " -m map to the periodic box\n"
809 " -n <#> print every <#> frames\n"
810 "\n"
811 " --repeatX <#> The number of images to repeat in the x direction\n"
812 " --repeatY <#> The number of images to repeat in the y direction\n"
813 " --repeatZ <#> The number of images to repeat in the z direction\n"
814
815 "\n",
816
817 program_name);
818 exit(8);
819 }
820
821 void wrapVector( double thePos[3], double Hmat[3][3], double HmatInv[3][3]){
822
823 int i;
824 double scaled[3];
825
826 // calc the scaled coordinates.
827
828 matVecMul3(HmatInv, thePos, scaled);
829
830 for(i=0; i<3; i++)
831 scaled[i] -= roundMe(scaled[i]);
832
833 // calc the wrapped real coordinates from the wrapped scaled coordinates
834
835 matVecMul3(Hmat, scaled, thePos);
836
837 }
838
839 double matDet3(double a[3][3]) {
840 int i, j, k;
841 double determinant;
842
843 determinant = 0.0;
844
845 for(i = 0; i < 3; i++) {
846 j = (i+1)%3;
847 k = (i+2)%3;
848
849 determinant += a[0][i] * (a[1][j]*a[2][k] - a[1][k]*a[2][j]);
850 }
851 return determinant;
852 }
853
854 void invertMat3(double a[3][3], double b[3][3]) {
855
856 int i, j, k, l, m, n;
857 double determinant;
858
859 determinant = matDet3( a );
860
861 if (determinant == 0.0) {
862 printf("Can't invert a matrix with a zero determinant!\n");
863 }
864
865 for (i=0; i < 3; i++) {
866 j = (i+1)%3;
867 k = (i+2)%3;
868 for(l = 0; l < 3; l++) {
869 m = (l+1)%3;
870 n = (l+2)%3;
871
872 b[l][i] = (a[j][m]*a[k][n] - a[j][n]*a[k][m]) / determinant;
873 }
874 }
875 }
876
877
878 void matVecMul3(double m[3][3], double inVec[3], double outVec[3]) {
879 double a0, a1, a2;
880
881 a0 = inVec[0]; a1 = inVec[1]; a2 = inVec[2];
882
883 outVec[0] = m[0][0]*a0 + m[0][1]*a1 + m[0][2]*a2;
884 outVec[1] = m[1][0]*a0 + m[1][1]*a1 + m[1][2]*a2;
885 outVec[2] = m[2][0]*a0 + m[2][1]*a1 + m[2][2]*a2;
886 }