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root/group/trunk/OOPSE/libmdtools/Integrator.cpp
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Comparing trunk/OOPSE/libmdtools/Integrator.cpp (file contents):
Revision 763 by tim, Mon Sep 15 16:52:02 2003 UTC vs.
Revision 782 by mmeineke, Tue Sep 23 20:34:31 2003 UTC

# Line 25 | Line 25 | template<typename T> Integrator<T>::Integrator(SimInfo
25    if (info->the_integrator != NULL){
26      delete info->the_integrator;
27    }
28 <  info->the_integrator = this;
29 <
28 >  
29    nAtoms = info->n_atoms;
30  
31    // check for constraints
# Line 177 | Line 176 | template<typename T> void Integrator<T>::integrate(voi
176    // initialize the forces before the first step
177  
178    calcForce(1, 1);
179 +
180 +  if (nConstrained){
181 +    preMove();
182 +    constrainA();
183 +    calcForce(1, 1);    
184 +    constrainB();
185 +  }
186    
187    if (info->setTemp){
188      thermalize();
# Line 254 | Line 260 | template<typename T> void Integrator<T>::integrateStep
260  
261    moveA();
262  
257 –  if (nConstrained){
258 –    constrainA();
259 –  }
263  
264  
265 +
266   #ifdef IS_MPI
267    strcpy(checkPointMsg, "Succesful moveA\n");
268    MPIcheckPoint();
# Line 279 | Line 283 | template<typename T> void Integrator<T>::integrateStep
283  
284    moveB();
285  
282 –  if (nConstrained){
283 –    constrainB();
284 –  }
286  
287 +
288   #ifdef IS_MPI
289    strcpy(checkPointMsg, "Succesful moveB\n");
290    MPIcheckPoint();
# Line 294 | Line 296 | template<typename T> void Integrator<T>::moveA(void){
296    int i, j;
297    DirectionalAtom* dAtom;
298    double Tb[3], ji[3];
297 –  double A[3][3], I[3][3];
298 –  double angle;
299    double vel[3], pos[3], frc[3];
300    double mass;
301  
# Line 331 | Line 331 | template<typename T> void Integrator<T>::moveA(void){
331        for (j = 0; j < 3; j++)
332          ji[j] += (dt2 * Tb[j]) * eConvert;
333  
334 <      // use the angular velocities to propagate the rotation matrix a
335 <      // full time step
336 <
337 <      dAtom->getA(A);
338 <      dAtom->getI(I);
334 >      this->rotationPropagation( dAtom, ji );
335  
340 –      // rotate about the x-axis      
341 –      angle = dt2 * ji[0] / I[0][0];
342 –      this->rotate(1, 2, angle, ji, A);
343 –
344 –      // rotate about the y-axis
345 –      angle = dt2 * ji[1] / I[1][1];
346 –      this->rotate(2, 0, angle, ji, A);
347 –
348 –      // rotate about the z-axis
349 –      angle = dt * ji[2] / I[2][2];
350 –      this->rotate(0, 1, angle, ji, A);
351 –
352 –      // rotate about the y-axis
353 –      angle = dt2 * ji[1] / I[1][1];
354 –      this->rotate(2, 0, angle, ji, A);
355 –
356 –      // rotate about the x-axis
357 –      angle = dt2 * ji[0] / I[0][0];
358 –      this->rotate(1, 2, angle, ji, A);
359 –
336        dAtom->setJ(ji);
361 –      dAtom->setA(A);
337      }
338    }
339 +
340 +  if (nConstrained){
341 +    constrainA();
342 +  }
343   }
344  
345  
# Line 402 | Line 381 | template<typename T> void Integrator<T>::moveB(void){
381        dAtom->setJ(ji);
382      }
383    }
384 +
385 +  if (nConstrained){
386 +    constrainB();
387 +  }
388   }
389  
390   template<typename T> void Integrator<T>::preMove(void){
# Line 560 | Line 543 | template<typename T> void Integrator<T>::constrainA(){
543      painCave.isFatal = 1;
544      simError();
545    }
546 +
547   }
548  
549   template<typename T> void Integrator<T>::constrainB(void){
# Line 661 | Line 645 | template<typename T> void Integrator<T>::constrainB(vo
645      painCave.isFatal = 1;
646      simError();
647    }
648 + }
649 +
650 + template<typename T> void Integrator<T>::rotationPropagation
651 + ( DirectionalAtom* dAtom, double ji[3] ){
652 +
653 +  double angle;
654 +  double A[3][3], I[3][3];
655 +
656 +  // use the angular velocities to propagate the rotation matrix a
657 +  // full time step
658 +
659 +  dAtom->getA(A);
660 +  dAtom->getI(I);
661 +  
662 +  // rotate about the x-axis      
663 +  angle = dt2 * ji[0] / I[0][0];
664 +  this->rotate( 1, 2, angle, ji, A );
665 +  
666 +  // rotate about the y-axis
667 +  angle = dt2 * ji[1] / I[1][1];
668 +  this->rotate( 2, 0, angle, ji, A );
669 +  
670 +  // rotate about the z-axis
671 +  angle = dt * ji[2] / I[2][2];
672 +  this->rotate( 0, 1, angle, ji, A);
673 +  
674 +  // rotate about the y-axis
675 +  angle = dt2 * ji[1] / I[1][1];
676 +  this->rotate( 2, 0, angle, ji, A );
677 +  
678 +  // rotate about the x-axis
679 +  angle = dt2 * ji[0] / I[0][0];
680 +  this->rotate( 1, 2, angle, ji, A );
681 +  
682 +  dAtom->setA( A  );    
683   }
684  
685   template<typename T> void Integrator<T>::rotate(int axes1, int axes2,
# Line 756 | Line 775 | template<typename T> double Integrator<T>::getConserve
775  
776   template<typename T> double Integrator<T>::getConservedQuantity(void){
777    return tStats->getTotalE();
778 < }
778 > }

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