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root/group/trunk/mdtools/interface_implementation/SimSetup.cpp
Revision: 198
Committed: Fri Dec 6 21:20:42 2002 UTC (21 years, 7 months ago) by mmeineke
File size: 20263 byte(s)
Log Message:
*** empty log message ***

File Contents

# Content
1 #include <cstdlib>
2 #include <iostream>
3 #include <cmath>
4
5 #include "SimSetup.hpp"
6 #include "parse_me.h"
7 #include "LRI.hpp"
8 #include "Integrator.hpp"
9 #include "simError.h"
10
11 #ifdef IS_MPI
12 #include "mpiBASS.h"
13 #include "bassDiag.hpp"
14 #endif
15
16 SimSetup::SimSetup(){
17 stamps = new MakeStamps();
18 globals = new Globals();
19
20 #ifdef IS_MPI
21 strcpy( checkPointMsg, "SimSetup creation successful" );
22 MPIcheckPoint();
23 #endif // IS_MPI
24 }
25
26 SimSetup::~SimSetup(){
27 delete stamps;
28 delete globals;
29 }
30
31 void SimSetup::parseFile( char* fileName ){
32
33 #ifdef IS_MPI
34 if( worldRank == 0 ){
35 #endif // is_mpi
36
37 inFileName = fileName;
38 set_interface_stamps( stamps, globals );
39
40 #ifdef IS_MPI
41 mpiEventInit();
42 #endif
43
44 yacc_BASS( fileName );
45
46 #ifdef IS_MPI
47 throwMPIEvent(NULL);
48 }
49 else receiveParse();
50 #endif
51
52 }
53
54 #ifdef IS_MPI
55 void SimSetup::receiveParse(void){
56
57 set_interface_stamps( stamps, globals );
58 mpiEventInit();
59 MPIcheckPoint();
60 mpiEventLoop();
61
62 }
63
64
65 void SimSetup::testMe(void){
66 bassDiag* dumpMe = new bassDiag(globals,stamps);
67 dumpMe->dumpStamps();
68 delete dumpMe;
69 }
70 #endif
71
72 void SimSetup::createSim( void ){
73
74 MakeStamps *the_stamps;
75 Globals* the_globals;
76 int i;
77
78 // get the stamps and globals;
79 the_stamps = stamps;
80 the_globals = globals;
81
82 // set the easy ones first
83 simnfo->target_temp = the_globals->getTargetTemp();
84 simnfo->dt = the_globals->getDt();
85 simnfo->run_time = the_globals->getRunTime();
86
87 // get the ones we know are there, yet still may need some work.
88 n_components = the_globals->getNComponents();
89 strcpy( force_field, the_globals->getForceField() );
90 strcpy( ensemble, the_globals->getEnsemble() );
91
92 if( !strcmp( force_field, "TraPPE" ) ) the_ff = new TraPPEFF();
93 else if( !strcmp( force_field, "DipoleTest" ) ) the_ff = new DipoleTestFF();
94 else if( !strcmp( force_field, "TraPPE_Ex" ) ) the_ff = new TraPPE_ExFF();
95 else{
96 sprintf( painCave.errMsg,
97 "SimSetup Error. Unrecognized force field -> %s\n",
98 force_field );
99 painCave.isFatal = 1;
100 simError();
101 }
102
103 #ifdef IS_MPI
104 strcpy( checkPointMsg, "ForceField creation successful" );
105 MPIcheckPoint();
106 #endif // is_mpi
107
108 // get the components and calculate the tot_nMol and indvidual n_mol
109 the_components = the_globals->getComponents();
110 components_nmol = new int[n_components];
111 comp_stamps = new MoleculeStamp*[n_components];
112
113 if( !the_globals->haveNMol() ){
114 // we don't have the total number of molecules, so we assume it is
115 // given in each component
116
117 tot_nmol = 0;
118 for( i=0; i<n_components; i++ ){
119
120 if( !the_components[i]->haveNMol() ){
121 // we have a problem
122 sprintf( painCave.errMsg,
123 "SimSetup Error. No global NMol or component NMol"
124 " given. Cannot calculate the number of atoms.\n" );
125 painCave.isFatal = 1;
126 simError();
127 }
128
129 tot_nmol += the_components[i]->getNMol();
130 components_nmol[i] = the_components[i]->getNMol();
131 }
132 }
133 else{
134 sprintf( painCave.errMsg,
135 "SimSetup error.\n"
136 "\tSorry, the ability to specify total"
137 " nMols and then give molfractions in the components\n"
138 "\tis not currently supported."
139 " Please give nMol in the components.\n" );
140 painCave.isFatal = 1;
141 simError();
142
143
144 // tot_nmol = the_globals->getNMol();
145
146 // //we have the total number of molecules, now we check for molfractions
147 // for( i=0; i<n_components; i++ ){
148
149 // if( !the_components[i]->haveMolFraction() ){
150
151 // if( !the_components[i]->haveNMol() ){
152 // //we have a problem
153 // std::cerr << "SimSetup error. Neither molFraction nor "
154 // << " nMol was given in component
155
156 }
157
158 #ifdef IS_MPI
159 strcpy( checkPointMsg, "Have the number of components" );
160 MPIcheckPoint();
161 #endif // is_mpi
162
163 // make an array of molecule stamps that match the components used.
164 // also extract the used stamps out into a separate linked list
165
166 simnfo->nComponents = n_components;
167 simnfo->componentsNmol = components_nmol;
168 simnfo->compStamps = comp_stamps;
169 simnfo->headStamp = new LinkedMolStamp();
170
171 char* id;
172 LinkedMolStamp* headStamp = simnfo->headStamp;
173 LinkedMolStamp* currentStamp = NULL;
174 for( i=0; i<n_components; i++ ){
175
176 id = the_components[i]->getType();
177 comp_stamps[i] = NULL;
178
179 // check to make sure the component isn't already in the list
180
181 comp_stamps[i] = headStamp->match( id );
182 if( comp_stamps[i] == NULL ){
183
184 // extract the component from the list;
185
186 currentStamp = the_stamps->extractMolStamp( id );
187 if( currentStamp == NULL ){
188 sprintf( painCave.errMsg,
189 "SimSetup error: Component \"%s\" was not found in the "
190 "list of declared molecules\n"
191 id );
192 painCave.isFatal = 1;
193 simError();
194 }
195
196 headStamp->add( currentStamp );
197 comp_stamps[i] = headStamp->match( id );
198 }
199 }
200
201 #ifdef IS_MPI
202 strcpy( checkPointMsg, "Component stamps successfully extracted\n" );
203 MPIcheckPoint();
204 #endif // is_mpi
205
206
207
208
209 // caclulate the number of atoms, bonds, bends and torsions
210
211 tot_atoms = 0;
212 tot_bonds = 0;
213 tot_bends = 0;
214 tot_torsions = 0;
215 for( i=0; i<n_components; i++ ){
216
217 tot_atoms += components_nmol[i] * comp_stamps[i]->getNAtoms();
218 tot_bonds += components_nmol[i] * comp_stamps[i]->getNBonds();
219 tot_bends += components_nmol[i] * comp_stamps[i]->getNBends();
220 tot_torsions += components_nmol[i] * comp_stamps[i]->getNTorsions();
221 }
222
223 tot_SRI = tot_bonds + tot_bends + tot_torsions;
224
225 simnfo->n_atoms = tot_atoms;
226 simnfo->n_bonds = tot_bonds;
227 simnfo->n_bends = tot_bends;
228 simnfo->n_torsions = tot_torsions;
229 simnfo->n_SRI = tot_SRI;
230 simnfo->n_mol = tot_nmol;
231
232
233 #ifdef IS_MPI
234
235 // divide the molecules among processors here.
236
237 new mpiSimulation( simnfo );
238
239 simnfo->mpiSim->divideLabor( n_components, comp_stamps, components_nmol );
240
241 #endif // is_mpi
242
243
244 // create the atom and short range interaction arrays
245
246 Atom::createArrays(simnfo->n_atoms);
247 the_atoms = new Atom*[simnfo->n_atoms];
248 the_molecules = new Molecule[simnfo->n_mol];
249
250
251 if( simnfo->n_SRI ){
252 the_sris = new SRI*[simnfo->n_SRI];
253 the_excludes = new ex_pair[simnfo->n_SRI];
254 }
255
256 // set the arrays into the SimInfo object
257
258 simnfo->atoms = the_atoms;
259 simnfo->sr_interactions = the_sris;
260 simnfo->n_exclude = tot_SRI;
261 simnfo->excludes = the_excludes;
262
263
264 // initialize the arrays
265
266 the_ff->setSimInfo( simnfo );
267
268 makeAtoms();
269
270 if( tot_bonds ){
271 makeBonds();
272 }
273
274 if( tot_bends ){
275 makeBends();
276 }
277
278 if( tot_torsions ){
279 makeTorsions();
280 }
281
282
283 // get some of the tricky things that may still be in the globals
284
285 if( simnfo->n_dipoles ){
286
287 if( !the_globals->haveRRF() ){
288 sprintf( painCave.errMsg,
289 "SimSetup Error, system has dipoles, but no rRF was set.\n");
290 painCave.isFatal = 1;
291 simError();
292 }
293 if( !the_globals->haveDielectric() ){
294 sprintf( painCave.errMsg,
295 "SimSetup Error, system has dipoles, but no"
296 " dielectric was set.\n" );
297 painCave.isFatal = 1;
298 simError();
299 }
300
301 simnfo->rRF = the_globals->getRRF();
302 simnfo->dielectric = the_globals->getDielectric();
303 }
304
305 #ifdef IS_MPI
306 strcpy( checkPointMsg, "rRf and dielectric check out" );
307 MPIcheckPoint();
308 #endif // is_mpi
309
310 if( the_globals->haveBox() ){
311 simnfo->box_x = the_globals->getBox();
312 simnfo->box_y = the_globals->getBox();
313 simnfo->box_z = the_globals->getBox();
314 }
315 else if( the_globals->haveDensity() ){
316
317 double vol;
318 vol = (double)tot_nmol / the_globals->getDensity();
319 simnfo->box_x = pow( vol, ( 1.0 / 3.0 ) );
320 simnfo->box_y = simnfo->box_x;
321 simnfo->box_z = simnfo->box_x;
322 }
323 else{
324 if( !the_globals->haveBoxX() ){
325 sprintf( painCave.errMsg,
326 "SimSetup error, no periodic BoxX size given.\n" );
327 painCave.isFatal = 1;
328 simError();
329 }
330 simnfo->box_x = the_globals->getBoxX();
331
332 if( !the_globals->haveBoxY() ){
333 sprintf( painCave.errMsg,
334 "SimSetup error, no periodic BoxY size given.\n" );
335 painCave.isFatal = 1;
336 simError();
337 }
338 simnfo->box_y = the_globals->getBoxY();
339
340 if( !the_globals->haveBoxZ() ){
341 sprintf( painCave.errMsg,
342 "SimSetup error, no periodic BoxZ size given.\n" );
343 painCave.isFatal = 1;
344 simError();
345 }
346 simnfo->box_z = the_globals->getBoxZ();
347 }
348
349 #ifdef IS_MPI
350 strcpy( checkPointMsg, "Box size set up" );
351 MPIcheckPoint();
352 #endif // is_mpi
353
354
355
356 // if( the_globals->haveInitialConfig() ){
357 // InitializeFromFile* fileInit;
358 // fileInit = new InitializeFromFile( the_globals->getInitialConfig() );
359
360 // fileInit->read_xyz( simnfo ); // default velocities on
361
362 // delete fileInit;
363 // }
364 // else{
365
366 #ifdef IS_MPI
367
368 // no init from bass
369
370 sprintf( painCave.errMsg,
371 "Cannot intialize a parallel simulation without an initial configuration file.\n" );
372 painCave.isFatal;
373 simError();
374
375 #else
376
377 initFromBass();
378
379 #endif // is_mpi
380
381 #ifdef IS_MPI
382 strcpy( checkPointMsg, "Successfully read in the initial configuration" );
383 MPIcheckPoint();
384 #endif // is_mpi
385
386
387
388
389
390 // }
391
392 #ifdef IS_MPI
393 if( worldRank == 0 ){
394 #endif // is_mpi
395
396 if( the_globals->haveFinalConfig() ){
397 strcpy( simnfo->finalName, the_globals->getFinalConfig() );
398 }
399 else{
400 strcpy( simnfo->finalName, inFileName );
401 char* endTest;
402 int nameLength = strlen( simnfo->finalName );
403 endTest = &(simnfo->finalName[nameLength - 5]);
404 if( !strcmp( endTest, ".bass" ) ){
405 strcpy( endTest, ".eor" );
406 }
407 else if( !strcmp( endTest, ".BASS" ) ){
408 strcpy( endTest, ".eor" );
409 }
410 else{
411 endTest = &(simnfo->finalName[nameLength - 4]);
412 if( !strcmp( endTest, ".bss" ) ){
413 strcpy( endTest, ".eor" );
414 }
415 else if( !strcmp( endTest, ".mdl" ) ){
416 strcpy( endTest, ".eor" );
417 }
418 else{
419 strcat( simnfo->finalName, ".eor" );
420 }
421 }
422 }
423
424 // make the sample and status out names
425
426 strcpy( simnfo->sampleName, inFileName );
427 char* endTest;
428 int nameLength = strlen( simnfo->sampleName );
429 endTest = &(simnfo->sampleName[nameLength - 5]);
430 if( !strcmp( endTest, ".bass" ) ){
431 strcpy( endTest, ".dump" );
432 }
433 else if( !strcmp( endTest, ".BASS" ) ){
434 strcpy( endTest, ".dump" );
435 }
436 else{
437 endTest = &(simnfo->sampleName[nameLength - 4]);
438 if( !strcmp( endTest, ".bss" ) ){
439 strcpy( endTest, ".dump" );
440 }
441 else if( !strcmp( endTest, ".mdl" ) ){
442 strcpy( endTest, ".dump" );
443 }
444 else{
445 strcat( simnfo->sampleName, ".dump" );
446 }
447 }
448
449 strcpy( simnfo->statusName, inFileName );
450 nameLength = strlen( simnfo->statusName );
451 endTest = &(simnfo->statusName[nameLength - 5]);
452 if( !strcmp( endTest, ".bass" ) ){
453 strcpy( endTest, ".stat" );
454 }
455 else if( !strcmp( endTest, ".BASS" ) ){
456 strcpy( endTest, ".stat" );
457 }
458 else{
459 endTest = &(simnfo->statusName[nameLength - 4]);
460 if( !strcmp( endTest, ".bss" ) ){
461 strcpy( endTest, ".stat" );
462 }
463 else if( !strcmp( endTest, ".mdl" ) ){
464 strcpy( endTest, ".stat" );
465 }
466 else{
467 strcat( simnfo->statusName, ".stat" );
468 }
469 }
470
471 #ifdef IS_MPI
472 }
473 #endif // is_mpi
474
475 // set the status, sample, and themal kick times
476
477 if( the_globals->haveSampleTime() ){
478 simnfo->sampleTime = the_globals->getSampleTime();
479 simnfo->statusTime = simnfo->sampleTime;
480 simnfo->thermalTime = simnfo->sampleTime;
481 }
482 else{
483 simnfo->sampleTime = the_globals->getRunTime();
484 simnfo->statusTime = simnfo->sampleTime;
485 simnfo->thermalTime = simnfo->sampleTime;
486 }
487
488 if( the_globals->haveStatusTime() ){
489 simnfo->statusTime = the_globals->getStatusTime();
490 }
491
492 if( the_globals->haveThermalTime() ){
493 simnfo->thermalTime = the_globals->getThermalTime();
494 }
495
496 // check for the temperature set flag
497
498 if( the_globals->haveTempSet() ) simnfo->setTemp = the_globals->getTempSet();
499
500
501 // make the longe range forces and the integrator
502
503 new AllLong( simnfo );
504
505 if( !strcmp( force_field, "TraPPE" ) ) new Verlet( *simnfo );
506 if( !strcmp( force_field, "DipoleTest" ) ) new Symplectic( simnfo );
507 if( !strcmp( force_field, "TraPPE_Ex" ) ) new Symplectic( simnfo );
508 }
509
510 void SimSetup::makeAtoms( void ){
511
512 int i, j, k, index;
513 double ux, uy, uz, uSqr, u;
514 AtomStamp* current_atom;
515 DirectionalAtom* dAtom;
516 int molIndex, molStart, molEnd, nMemb;
517
518
519 molIndex = 0;
520 index = 0;
521 for( i=0; i<n_components; i++ ){
522
523 for( j=0; j<components_nmol[i]; j++ ){
524
525 molStart = index;
526 nMemb = comp_stamps[i]->getNAtoms();
527 for( k=0; k<comp_stamps[i]->getNAtoms(); k++ ){
528
529 current_atom = comp_stamps[i]->getAtom( k );
530 if( current_atom->haveOrientation() ){
531
532 dAtom = new DirectionalAtom(index);
533 simnfo->n_oriented++;
534 the_atoms[index] = dAtom;
535
536 ux = current_atom->getOrntX();
537 uy = current_atom->getOrntY();
538 uz = current_atom->getOrntZ();
539
540 uSqr = (ux * ux) + (uy * uy) + (uz * uz);
541
542 u = sqrt( uSqr );
543 ux = ux / u;
544 uy = uy / u;
545 uz = uz / u;
546
547 dAtom->setSUx( ux );
548 dAtom->setSUy( uy );
549 dAtom->setSUz( uz );
550 }
551 else{
552 the_atoms[index] = new GeneralAtom(index);
553 }
554 the_atoms[index]->setType( current_atom->getType() );
555 the_atoms[index]->setIndex( index );
556
557 // increment the index and repeat;
558 index++;
559 }
560
561 molEnd = index -1;
562 the_molecules[molIndex].setNMembers( nMemb );
563 the_molecules[molIndex].setStartAtom( molStart );
564 the_molecules[molIndex].setEndAtom( molEnd );
565 molIndex++;
566
567 }
568 }
569
570 the_ff->initializeAtoms();
571 }
572
573 void SimSetup::makeBonds( void ){
574
575 int i, j, k, index, offset;
576 bond_pair* the_bonds;
577 BondStamp* current_bond;
578
579 the_bonds = new bond_pair[tot_bonds];
580 index = 0;
581 offset = 0;
582 for( i=0; i<n_components; i++ ){
583
584 for( j=0; j<components_nmol[i]; j++ ){
585
586 for( k=0; k<comp_stamps[i]->getNBonds(); k++ ){
587
588 current_bond = comp_stamps[i]->getBond( k );
589 the_bonds[index].a = current_bond->getA() + offset;
590 the_bonds[index].b = current_bond->getB() + offset;
591
592 the_excludes[index].i = the_bonds[index].a;
593 the_excludes[index].j = the_bonds[index].b;
594
595 // increment the index and repeat;
596 index++;
597 }
598 offset += comp_stamps[i]->getNAtoms();
599 }
600 }
601
602 the_ff->initializeBonds( the_bonds );
603 }
604
605 void SimSetup::makeBends( void ){
606
607 int i, j, k, index, offset;
608 bend_set* the_bends;
609 BendStamp* current_bend;
610
611 the_bends = new bend_set[tot_bends];
612 index = 0;
613 offset = 0;
614 for( i=0; i<n_components; i++ ){
615
616 for( j=0; j<components_nmol[i]; j++ ){
617
618 for( k=0; k<comp_stamps[i]->getNBends(); k++ ){
619
620 current_bend = comp_stamps[i]->getBend( k );
621 the_bends[index].a = current_bend->getA() + offset;
622 the_bends[index].b = current_bend->getB() + offset;
623 the_bends[index].c = current_bend->getC() + offset;
624
625 the_excludes[index + tot_bonds].i = the_bends[index].a;
626 the_excludes[index + tot_bonds].j = the_bends[index].c;
627
628 // increment the index and repeat;
629 index++;
630 }
631 offset += comp_stamps[i]->getNAtoms();
632 }
633 }
634
635 the_ff->initializeBends( the_bends );
636 }
637
638 void SimSetup::makeTorsions( void ){
639
640 int i, j, k, index, offset;
641 torsion_set* the_torsions;
642 TorsionStamp* current_torsion;
643
644 the_torsions = new torsion_set[tot_torsions];
645 index = 0;
646 offset = 0;
647 for( i=0; i<n_components; i++ ){
648
649 for( j=0; j<components_nmol[i]; j++ ){
650
651 for( k=0; k<comp_stamps[i]->getNTorsions(); k++ ){
652
653 current_torsion = comp_stamps[i]->getTorsion( k );
654 the_torsions[index].a = current_torsion->getA() + offset;
655 the_torsions[index].b = current_torsion->getB() + offset;
656 the_torsions[index].c = current_torsion->getC() + offset;
657 the_torsions[index].d = current_torsion->getD() + offset;
658
659 the_excludes[index + tot_bonds + tot_bends].i = the_torsions[index].a;
660 the_excludes[index + tot_bonds + tot_bends].j = the_torsions[index].d;
661
662 // increment the index and repeat;
663 index++;
664 }
665 offset += comp_stamps[i]->getNAtoms();
666 }
667 }
668
669 the_ff->initializeTorsions( the_torsions );
670 }
671
672 void SimSetup::initFromBass( void ){
673
674 int i, j, k;
675 int n_cells;
676 double cellx, celly, cellz;
677 double temp1, temp2, temp3;
678 int n_per_extra;
679 int n_extra;
680 int have_extra, done;
681
682 temp1 = (double)tot_nmol / 4.0;
683 temp2 = pow( temp1, ( 1.0 / 3.0 ) );
684 temp3 = ceil( temp2 );
685
686 have_extra =0;
687 if( temp2 < temp3 ){ // we have a non-complete lattice
688 have_extra =1;
689
690 n_cells = (int)temp3 - 1;
691 cellx = simnfo->box_x / temp3;
692 celly = simnfo->box_y / temp3;
693 cellz = simnfo->box_z / temp3;
694 n_extra = tot_nmol - ( 4 * n_cells * n_cells * n_cells );
695 temp1 = ((double)n_extra) / ( pow( temp3, 3.0 ) - pow( n_cells, 3.0 ) );
696 n_per_extra = (int)ceil( temp1 );
697
698 if( n_per_extra > 4){
699 sprintf( painCave.errMsg,
700 "SimSetup error. There has been an error in constructing"
701 " the non-complete lattice.\n" );
702 painCave.isFatal = 1;
703 simError();
704 }
705 }
706 else{
707 n_cells = (int)temp3;
708 cellx = simnfo->box_x / temp3;
709 celly = simnfo->box_y / temp3;
710 cellz = simnfo->box_z / temp3;
711 }
712
713 current_mol = 0;
714 current_comp_mol = 0;
715 current_comp = 0;
716 current_atom_ndx = 0;
717
718 for( i=0; i < n_cells ; i++ ){
719 for( j=0; j < n_cells; j++ ){
720 for( k=0; k < n_cells; k++ ){
721
722 makeElement( i * cellx,
723 j * celly,
724 k * cellz );
725
726 makeElement( i * cellx + 0.5 * cellx,
727 j * celly + 0.5 * celly,
728 k * cellz );
729
730 makeElement( i * cellx,
731 j * celly + 0.5 * celly,
732 k * cellz + 0.5 * cellz );
733
734 makeElement( i * cellx + 0.5 * cellx,
735 j * celly,
736 k * cellz + 0.5 * cellz );
737 }
738 }
739 }
740
741 if( have_extra ){
742 done = 0;
743
744 int start_ndx;
745 for( i=0; i < (n_cells+1) && !done; i++ ){
746 for( j=0; j < (n_cells+1) && !done; j++ ){
747
748 if( i < n_cells ){
749
750 if( j < n_cells ){
751 start_ndx = n_cells;
752 }
753 else start_ndx = 0;
754 }
755 else start_ndx = 0;
756
757 for( k=start_ndx; k < (n_cells+1) && !done; k++ ){
758
759 makeElement( i * cellx,
760 j * celly,
761 k * cellz );
762 done = ( current_mol >= tot_nmol );
763
764 if( !done && n_per_extra > 1 ){
765 makeElement( i * cellx + 0.5 * cellx,
766 j * celly + 0.5 * celly,
767 k * cellz );
768 done = ( current_mol >= tot_nmol );
769 }
770
771 if( !done && n_per_extra > 2){
772 makeElement( i * cellx,
773 j * celly + 0.5 * celly,
774 k * cellz + 0.5 * cellz );
775 done = ( current_mol >= tot_nmol );
776 }
777
778 if( !done && n_per_extra > 3){
779 makeElement( i * cellx + 0.5 * cellx,
780 j * celly,
781 k * cellz + 0.5 * cellz );
782 done = ( current_mol >= tot_nmol );
783 }
784 }
785 }
786 }
787 }
788
789
790 for( i=0; i<simnfo->n_atoms; i++ ){
791 simnfo->atoms[i]->set_vx( 0.0 );
792 simnfo->atoms[i]->set_vy( 0.0 );
793 simnfo->atoms[i]->set_vz( 0.0 );
794 }
795 }
796
797 void SimSetup::makeElement( double x, double y, double z ){
798
799 int k;
800 AtomStamp* current_atom;
801 DirectionalAtom* dAtom;
802 double rotMat[3][3];
803
804 for( k=0; k<comp_stamps[current_comp]->getNAtoms(); k++ ){
805
806 current_atom = comp_stamps[current_comp]->getAtom( k );
807 if( !current_atom->havePosition() ){
808 sprintf( painCave.errMsg,
809 "SimSetup:initFromBass error.\n"
810 "\tComponent %s, atom %s does not have a position specified.\n"
811 "\tThe initialization routine is unable to give a start"
812 " position.\n",
813 comp_stamps[current_comp]->getID(),
814 current_atom->getType() );
815 painCave.isFatal = 1;
816 simError();
817 }
818
819 the_atoms[current_atom_ndx]->setX( x + current_atom->getPosX() );
820 the_atoms[current_atom_ndx]->setY( y + current_atom->getPosY() );
821 the_atoms[current_atom_ndx]->setZ( z + current_atom->getPosZ() );
822
823 if( the_atoms[current_atom_ndx]->isDirectional() ){
824
825 dAtom = (DirectionalAtom *)the_atoms[current_atom_ndx];
826
827 rotMat[0][0] = 1.0;
828 rotMat[0][1] = 0.0;
829 rotMat[0][2] = 0.0;
830
831 rotMat[1][0] = 0.0;
832 rotMat[1][1] = 1.0;
833 rotMat[1][2] = 0.0;
834
835 rotMat[2][0] = 0.0;
836 rotMat[2][1] = 0.0;
837 rotMat[2][2] = 1.0;
838
839 dAtom->setA( rotMat );
840 }
841
842 current_atom_ndx++;
843 }
844
845 current_mol++;
846 current_comp_mol++;
847
848 if( current_comp_mol >= components_nmol[current_comp] ){
849
850 current_comp_mol = 0;
851 current_comp++;
852 }
853 }