| 1 | #ifndef _INTEGRATOR_H_ | 
| 2 | #define _INTEGRATOR_H_ | 
| 3 |  | 
| 4 | #include "Atom.hpp" | 
| 5 | #include "SRI.hpp" | 
| 6 | #include "AbstractClasses.hpp" | 
| 7 | #include "SimInfo.hpp" | 
| 8 | #include "ForceFields.hpp" | 
| 9 | #include "Thermo.hpp" | 
| 10 | #include "ReadWrite.hpp" | 
| 11 |  | 
| 12 | class Integrator : public BaseIntegrator { | 
| 13 |  | 
| 14 | public: | 
| 15 | Symplectic( SimInfo &theInfo, ForceFields* the_ff ); | 
| 16 | virtual ~Symplectic(); | 
| 17 | void integrate( void ); | 
| 18 |  | 
| 19 |  | 
| 20 | protected: | 
| 21 |  | 
| 22 |  | 
| 23 | virtual void integrateStep( int calcPot, int calcStress ); | 
| 24 | virtual void moveA( void ); | 
| 25 | virtual void moveB( void ); | 
| 26 | virtual void constrainA( void ); | 
| 27 | virtual void constrainB( void ); | 
| 28 |  | 
| 29 |  | 
| 30 | void checkConstraints( void ); | 
| 31 | void rotate( int axes1, int axes2, double angle, double j[3], | 
| 32 | double A[3][3] ); | 
| 33 |  | 
| 34 |  | 
| 35 | ForceFields* myFF; | 
| 36 |  | 
| 37 | SimInfo *info; // all the info we'll ever need | 
| 38 | int nAtoms;  /* the number of atoms */ | 
| 39 | Atom **atoms; /* array of atom pointers */ | 
| 40 | Molecule* molecules; | 
| 41 | int nMols; | 
| 42 |  | 
| 43 | int isConstrained; /*boolean to know whether the systems contains | 
| 44 | constraints. */ | 
| 45 | int nConstrained; /*counter for number of constraints */ | 
| 46 | int *constrainedI; /* the i of a constraint pair */ | 
| 47 | int *constrainedJ; /* the j of a constraint pair */ | 
| 48 | double *constrainedDsqr; /* the square of the constraint distance */ | 
| 49 | short isFirst; /*boolean for the first time integrate is called */ | 
| 50 |  | 
| 51 | double dt; | 
| 52 | double dt2; | 
| 53 | const double eConvert = 4.184e-4; // converts kcal/mol -> amu*A^2/fs^2 | 
| 54 |  | 
| 55 |  | 
| 56 | double* pos; | 
| 57 | double* vel; | 
| 58 | double* frc; | 
| 59 | double* trq; | 
| 60 | double* Amat; | 
| 61 |  | 
| 62 |  | 
| 63 |  | 
| 64 | Thermo *tStats; | 
| 65 | StatWriter*  statOut; | 
| 66 | DumpWriter*  dumpOut; | 
| 67 |  | 
| 68 | }; | 
| 69 |  | 
| 70 |  | 
| 71 | class NVT : public Integrator{ | 
| 72 |  | 
| 73 | NVT ( void ); | 
| 74 | virtual ~NVT(); | 
| 75 |  | 
| 76 | protected: | 
| 77 | virtual moveA( void ); | 
| 78 | virtual moveB( void ); | 
| 79 |  | 
| 80 | }; | 
| 81 |  | 
| 82 |  | 
| 83 |  | 
| 84 |  | 
| 85 | #endif |