4 |
|
#include <string> |
5 |
|
#include <vector> |
6 |
|
#include "Atom.hpp" |
7 |
+ |
#include "StuntDouble.hpp" |
8 |
|
#include "Molecule.hpp" |
9 |
|
#include "SRI.hpp" |
10 |
|
#include "AbstractClasses.hpp" |
13 |
|
#include "Thermo.hpp" |
14 |
|
#include "ReadWrite.hpp" |
15 |
|
#include "ZConsWriter.hpp" |
16 |
+ |
#include "Restraints.hpp" |
17 |
|
|
18 |
|
using namespace std; |
19 |
|
const double kB = 8.31451e-7;// boltzmann constant amu*Ang^2*fs^-2/K |
22 |
|
const int maxIteration = 300; |
23 |
|
const double tol = 1.0e-6; |
24 |
|
|
25 |
< |
|
25 |
> |
class RattleFramework; |
26 |
|
template<typename T = BaseIntegrator> class Integrator : public T { |
27 |
|
|
28 |
|
public: |
30 |
|
virtual ~Integrator(); |
31 |
|
void integrate( void ); |
32 |
|
virtual double getConservedQuantity(void); |
33 |
+ |
virtual string getAdditionalParameters(void); |
34 |
|
|
35 |
|
protected: |
36 |
|
|
37 |
|
virtual void integrateStep( int calcPot, int calcStress ); |
38 |
< |
virtual void preMove( void ); |
38 |
> |
//virtual void preMove( void ); |
39 |
|
virtual void moveA( void ); |
40 |
|
virtual void moveB( void ); |
41 |
< |
virtual void constrainA( void ); |
42 |
< |
virtual void constrainB( void ); |
41 |
> |
//virtual void constrainA( void ); |
42 |
> |
//virtual void constrainB( void ); |
43 |
|
virtual int readyCheck( void ) { return 1; } |
44 |
|
|
45 |
|
virtual void resetIntegrator( void ) { } |
46 |
< |
|
47 |
< |
virtual void calcForce( int calcPot, int calcStress ); |
46 |
> |
|
47 |
> |
virtual void calcForce( int calcPot, int calcStress ); |
48 |
|
virtual void thermalize(); |
46 |
– |
|
47 |
– |
virtual void rotationPropagation( DirectionalAtom* dAtom, double ji[3] ); |
49 |
|
|
50 |
< |
void checkConstraints( void ); |
51 |
< |
void rotate( int axes1, int axes2, double angle, double j[3], |
50 |
> |
virtual bool stopIntegrator() {return false;} |
51 |
> |
|
52 |
> |
virtual void rotationPropagation( StuntDouble* sd, double ji[3] ); |
53 |
> |
|
54 |
> |
//void checkConstraints( void ); |
55 |
> |
void rotate( int axes1, int axes2, double angle, double j[3], |
56 |
|
double A[3][3] ); |
57 |
< |
|
57 |
> |
|
58 |
|
ForceFields* myFF; |
59 |
|
|
60 |
|
SimInfo *info; // all the info we'll ever need |
61 |
+ |
vector<StuntDouble*> integrableObjects; |
62 |
|
int nAtoms; /* the number of atoms */ |
63 |
|
int oldAtoms; |
64 |
|
Atom **atoms; /* array of atom pointers */ |
65 |
|
Molecule* molecules; |
66 |
|
int nMols; |
67 |
|
|
68 |
< |
int isConstrained; // boolean to know whether the systems contains |
69 |
< |
// constraints. |
70 |
< |
int nConstrained; // counter for number of constraints |
71 |
< |
int *constrainedA; // the i of a constraint pair |
72 |
< |
int *constrainedB; // the j of a constraint pair |
73 |
< |
double *constrainedDsqr; // the square of the constraint distance |
74 |
< |
|
69 |
< |
int* moving; // tells whether we are moving atom i |
70 |
< |
int* moved; // tells whether we have moved atom i |
71 |
< |
double* oldPos; // pre constrained positions |
68 |
> |
RattleFramework* rattle; |
69 |
> |
|
70 |
> |
//int isConstrained; // boolean to know whether the systems contains constraints. |
71 |
> |
//int nConstrained; // counter for number of constraints |
72 |
> |
//int *constrainedA; // the i of a constraint pair |
73 |
> |
//int *constrainedB; // the j of a constraint pair |
74 |
> |
//double *constrainedDsqr; // the square of the constraint distance |
75 |
|
|
76 |
+ |
//int* moving; // tells whether we are moving atom i |
77 |
+ |
//int* moved; // tells whether we have moved atom i |
78 |
+ |
//double* oldPos; // pre constrained positions |
79 |
+ |
|
80 |
|
short isFirst; /*boolean for the first time integrate is called */ |
81 |
< |
|
81 |
> |
|
82 |
|
double dt; |
83 |
|
double dt2; |
84 |
|
|
85 |
|
Thermo *tStats; |
86 |
|
StatWriter* statOut; |
87 |
|
DumpWriter* dumpOut; |
88 |
< |
|
88 |
> |
|
89 |
|
}; |
90 |
|
|
91 |
|
typedef Integrator<BaseIntegrator> RealIntegrator; |
92 |
|
|
93 |
+ |
// ansi instantiation |
94 |
+ |
//template class Integrator<BaseIntegrator>; |
95 |
+ |
|
96 |
|
template<typename T> class NVE : public T { |
97 |
|
|
98 |
|
public: |
99 |
|
NVE ( SimInfo *theInfo, ForceFields* the_ff ): |
100 |
|
T( theInfo, the_ff ){} |
101 |
< |
virtual ~NVE(){} |
101 |
> |
virtual ~NVE(){} |
102 |
|
}; |
103 |
|
|
104 |
|
|
113 |
|
void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
114 |
|
void setChiTolerance(double tol) {chiTolerance = tol;} |
115 |
|
virtual double getConservedQuantity(void); |
116 |
+ |
virtual string getAdditionalParameters(void); |
117 |
|
|
118 |
|
protected: |
119 |
|
|
135 |
|
|
136 |
|
double targetTemp; |
137 |
|
double tauThermostat; |
138 |
< |
|
138 |
> |
|
139 |
|
short int have_tau_thermostat, have_target_temp; |
140 |
|
|
141 |
|
double *oldVel; |
154 |
|
|
155 |
|
NPT ( SimInfo *theInfo, ForceFields* the_ff); |
156 |
|
virtual ~NPT(); |
157 |
< |
|
157 |
> |
|
158 |
|
virtual void integrateStep( int calcPot, int calcStress ){ |
159 |
|
calcStress = 1; |
160 |
|
T::integrateStep( calcPot, calcStress ); |
161 |
|
} |
162 |
|
|
163 |
|
virtual double getConservedQuantity(void) = 0; |
164 |
+ |
virtual string getAdditionalParameters(void) = 0; |
165 |
+ |
|
166 |
+ |
double myTauThermo( void ) { return tauThermostat; } |
167 |
+ |
double myTauBaro( void ) { return tauBarostat; } |
168 |
|
|
169 |
|
void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
170 |
|
void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
185 |
|
|
186 |
|
virtual void getVelScaleA( double sc[3], double vel[3] ) = 0; |
187 |
|
virtual void getVelScaleB( double sc[3], int index ) = 0; |
188 |
< |
virtual void getPosScale(double pos[3], double COM[3], |
188 |
> |
virtual void getPosScale(double pos[3], double COM[3], |
189 |
|
int index, double sc[3]) = 0; |
190 |
|
|
191 |
+ |
virtual void calcVelScale( void ) = 0; |
192 |
+ |
|
193 |
|
virtual bool chiConverged( void ); |
194 |
|
virtual bool etaConverged( void ) = 0; |
195 |
< |
|
195 |
> |
|
196 |
|
virtual void evolveChiA( void ); |
197 |
|
virtual void evolveEtaA( void ) = 0; |
198 |
|
virtual void evolveChiB( void ); |
218 |
|
|
219 |
|
double integralOfChidt; |
220 |
|
|
221 |
< |
// targetTemp, targetPressure, and tauBarostat must be set. |
221 |
> |
// targetTemp, targetPressure, and tauBarostat must be set. |
222 |
|
// One of qmass or tauThermostat must be set; |
223 |
|
|
224 |
|
double targetTemp; |
243 |
|
}; |
244 |
|
|
245 |
|
template<typename T> class NPTi : public T{ |
246 |
< |
|
246 |
> |
|
247 |
|
public: |
248 |
|
NPTi( SimInfo *theInfo, ForceFields* the_ff); |
249 |
|
~NPTi(); |
250 |
|
|
251 |
|
virtual double getConservedQuantity(void); |
252 |
|
virtual void resetIntegrator(void); |
253 |
< |
|
253 |
> |
virtual string getAdditionalParameters(void); |
254 |
|
protected: |
255 |
|
|
239 |
– |
|
256 |
|
|
257 |
+ |
|
258 |
|
virtual void evolveEtaA(void); |
259 |
|
virtual void evolveEtaB(void); |
260 |
|
|
264 |
|
|
265 |
|
virtual void getVelScaleA( double sc[3], double vel[3] ); |
266 |
|
virtual void getVelScaleB( double sc[3], int index ); |
267 |
< |
virtual void getPosScale(double pos[3], double COM[3], |
267 |
> |
virtual void getPosScale(double pos[3], double COM[3], |
268 |
|
int index, double sc[3]); |
269 |
+ |
|
270 |
+ |
virtual void calcVelScale( void ); |
271 |
|
|
272 |
|
double eta, oldEta, prevEta; |
273 |
+ |
double vScale; |
274 |
|
}; |
275 |
|
|
276 |
< |
template<typename T> class NPTzm : public T{ |
276 |
> |
template<typename T> class NPTf : public T{ |
277 |
|
|
278 |
|
public: |
279 |
|
|
280 |
< |
NPTzm ( SimInfo *theInfo, ForceFields* the_ff); |
281 |
< |
virtual ~NPTzm() {}; |
280 |
> |
NPTf ( SimInfo *theInfo, ForceFields* the_ff); |
281 |
> |
virtual ~NPTf(); |
282 |
|
|
283 |
< |
virtual void integrateStep( int calcPot, int calcStress ){ |
284 |
< |
calcStress = 1; |
285 |
< |
T::integrateStep( calcPot, calcStress ); |
266 |
< |
} |
283 |
> |
virtual double getConservedQuantity(void); |
284 |
> |
virtual string getAdditionalParameters(void); |
285 |
> |
virtual void resetIntegrator(void); |
286 |
|
|
268 |
– |
void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
269 |
– |
void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
270 |
– |
void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
271 |
– |
void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
272 |
– |
|
287 |
|
protected: |
288 |
|
|
289 |
< |
virtual void moveA( void ); |
290 |
< |
virtual void moveB( void ); |
289 |
> |
virtual void evolveEtaA(void); |
290 |
> |
virtual void evolveEtaB(void); |
291 |
|
|
292 |
< |
virtual int readyCheck(); |
292 |
> |
virtual bool etaConverged( void ); |
293 |
|
|
294 |
< |
virtual void resetIntegrator( void ); |
294 |
> |
virtual void scaleSimBox( void ); |
295 |
|
|
296 |
< |
Molecule* myMolecules; |
297 |
< |
Atom** myAtoms; |
296 |
> |
virtual void getVelScaleA( double sc[3], double vel[3] ); |
297 |
> |
virtual void getVelScaleB( double sc[3], int index ); |
298 |
> |
virtual void getPosScale(double pos[3], double COM[3], |
299 |
> |
int index, double sc[3]); |
300 |
|
|
301 |
< |
// chi and eta are the propagated degrees of freedom |
301 |
> |
virtual void calcVelScale( void ); |
302 |
|
|
303 |
< |
double chi; |
304 |
< |
double eta; |
305 |
< |
double etaZ; |
306 |
< |
double NkBT; |
291 |
< |
|
292 |
< |
// targetTemp, targetPressure, and tauBarostat must be set. |
293 |
< |
// One of qmass or tauThermostat must be set; |
294 |
< |
|
295 |
< |
double targetTemp; |
296 |
< |
double targetPressure; |
297 |
< |
double tauThermostat; |
298 |
< |
double tauBarostat; |
299 |
< |
|
300 |
< |
short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
301 |
< |
short int have_target_pressure; |
302 |
< |
|
303 |
> |
double eta[3][3]; |
304 |
> |
double oldEta[3][3]; |
305 |
> |
double prevEta[3][3]; |
306 |
> |
double vScale[3][3]; |
307 |
|
}; |
308 |
|
|
309 |
< |
template<typename T> class NPTf : public T{ |
309 |
> |
template<typename T> class NPTxyz : public T{ |
310 |
|
|
311 |
|
public: |
312 |
|
|
313 |
< |
NPTf ( SimInfo *theInfo, ForceFields* the_ff); |
314 |
< |
virtual ~NPTf(); |
313 |
> |
NPTxyz ( SimInfo *theInfo, ForceFields* the_ff); |
314 |
> |
virtual ~NPTxyz(); |
315 |
|
|
316 |
|
virtual double getConservedQuantity(void); |
317 |
+ |
virtual string getAdditionalParameters(void); |
318 |
|
virtual void resetIntegrator(void); |
319 |
|
|
320 |
|
protected: |
328 |
|
|
329 |
|
virtual void getVelScaleA( double sc[3], double vel[3] ); |
330 |
|
virtual void getVelScaleB( double sc[3], int index ); |
331 |
< |
virtual void getPosScale(double pos[3], double COM[3], |
331 |
> |
virtual void getPosScale(double pos[3], double COM[3], |
332 |
|
int index, double sc[3]); |
333 |
|
|
334 |
+ |
virtual void calcVelScale( void ); |
335 |
+ |
|
336 |
|
double eta[3][3]; |
337 |
|
double oldEta[3][3]; |
338 |
|
double prevEta[3][3]; |
339 |
< |
}; |
333 |
< |
|
334 |
< |
template<typename T> class NPTxym : public T{ |
335 |
< |
|
336 |
< |
public: |
337 |
< |
|
338 |
< |
NPTxym ( SimInfo *theInfo, ForceFields* the_ff); |
339 |
< |
virtual ~NPTxym() {}; |
340 |
< |
|
341 |
< |
virtual void integrateStep( int calcPot, int calcStress ){ |
342 |
< |
calcStress = 1; |
343 |
< |
T::integrateStep( calcPot, calcStress ); |
344 |
< |
} |
345 |
< |
|
346 |
< |
void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
347 |
< |
void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
348 |
< |
void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
349 |
< |
void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
350 |
< |
|
351 |
< |
protected: |
352 |
< |
|
353 |
< |
virtual void moveA( void ); |
354 |
< |
virtual void moveB( void ); |
355 |
< |
|
356 |
< |
virtual int readyCheck(); |
357 |
< |
|
358 |
< |
virtual void resetIntegrator( void ); |
359 |
< |
|
360 |
< |
Molecule* myMolecules; |
361 |
< |
Atom** myAtoms; |
362 |
< |
|
363 |
< |
// chi and eta are the propagated degrees of freedom |
364 |
< |
|
365 |
< |
double chi; |
366 |
< |
double eta; |
367 |
< |
double etaX; |
368 |
< |
double etaY; |
369 |
< |
double NkBT; |
370 |
< |
|
371 |
< |
// targetTemp, targetPressure, and tauBarostat must be set. |
372 |
< |
// One of qmass or tauThermostat must be set; |
373 |
< |
|
374 |
< |
double targetTemp; |
375 |
< |
double targetPressure; |
376 |
< |
double tauThermostat; |
377 |
< |
double tauBarostat; |
378 |
< |
|
379 |
< |
short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
380 |
< |
short int have_target_pressure; |
381 |
< |
|
339 |
> |
double vScale[3][3]; |
340 |
|
}; |
341 |
|
|
342 |
+ |
|
343 |
|
template<typename T> class ZConstraint : public T { |
344 |
< |
|
345 |
< |
public: |
344 |
> |
|
345 |
> |
public: |
346 |
|
class ForceSubtractionPolicy{ |
347 |
|
public: |
348 |
|
ForceSubtractionPolicy(ZConstraint<T>* integrator) {zconsIntegrator = integrator;} |
349 |
|
|
350 |
< |
virtual void update() = 0; |
350 |
> |
virtual void update() = 0; |
351 |
|
virtual double getZFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) = 0; |
352 |
|
virtual double getZFOfMovingMols(Atom* atom, double totalForce) = 0; |
353 |
|
virtual double getHFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) = 0; |
354 |
|
virtual double getHFOfUnconsMols(Atom* atom, double totalForce) = 0; |
355 |
< |
|
355 |
> |
|
356 |
|
protected: |
357 |
|
ZConstraint<T>* zconsIntegrator; |
358 |
|
}; |
360 |
|
class PolicyByNumber : public ForceSubtractionPolicy{ |
361 |
|
|
362 |
|
public: |
363 |
< |
PolicyByNumber(ZConstraint<T>* integrator) :ForceSubtractionPolicy(integrator) {} |
364 |
< |
virtual void update(); |
363 |
> |
PolicyByNumber(ZConstraint<T>* integrator) :ForceSubtractionPolicy(integrator) {} |
364 |
> |
virtual void update(); |
365 |
|
virtual double getZFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) ; |
366 |
|
virtual double getZFOfMovingMols(Atom* atom, double totalForce) ; |
367 |
|
virtual double getHFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce); |
368 |
|
virtual double getHFOfUnconsMols(Atom* atom, double totalForce); |
369 |
< |
|
369 |
> |
|
370 |
|
private: |
371 |
|
int totNumOfMovingAtoms; |
372 |
|
}; |
374 |
|
class PolicyByMass : public ForceSubtractionPolicy{ |
375 |
|
|
376 |
|
public: |
377 |
< |
PolicyByMass(ZConstraint<T>* integrator) :ForceSubtractionPolicy(integrator) {} |
378 |
< |
|
379 |
< |
virtual void update(); |
377 |
> |
PolicyByMass(ZConstraint<T>* integrator) :ForceSubtractionPolicy(integrator) {} |
378 |
> |
|
379 |
> |
virtual void update(); |
380 |
|
virtual double getZFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) ; |
381 |
|
virtual double getZFOfMovingMols(Atom* atom, double totalForce) ; |
382 |
|
virtual double getHFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce); |
390 |
|
|
391 |
|
ZConstraint( SimInfo *theInfo, ForceFields* the_ff); |
392 |
|
~ZConstraint(); |
393 |
< |
|
393 |
> |
|
394 |
|
void setZConsTime(double time) {this->zconsTime = time;} |
395 |
|
void getZConsTime() {return zconsTime;} |
396 |
< |
|
396 |
> |
|
397 |
|
void setIndexOfAllZConsMols(vector<int> index) {indexOfAllZConsMols = index;} |
398 |
|
void getIndexOfAllZConsMols() {return indexOfAllZConsMols;} |
399 |
< |
|
399 |
> |
|
400 |
|
void setZConsOutput(const char * fileName) {zconsOutput = fileName;} |
401 |
|
string getZConsOutput() {return zconsOutput;} |
402 |
< |
|
402 |
> |
|
403 |
|
virtual void integrate(); |
445 |
– |
|
404 |
|
|
405 |
+ |
|
406 |
|
#ifdef IS_MPI |
407 |
|
virtual void update(); //which is called to indicate the molecules' migration |
408 |
|
#endif |
409 |
|
|
410 |
+ |
enum ZConsState {zcsMoving, zcsFixed}; |
411 |
+ |
|
412 |
+ |
vector<Molecule*> zconsMols; //z-constraint molecules array |
413 |
+ |
vector<ZConsState> states; //state of z-constraint molecules |
414 |
+ |
|
415 |
+ |
|
416 |
+ |
|
417 |
+ |
int totNumOfUnconsAtoms; //total number of uncontraint atoms |
418 |
+ |
double totalMassOfUncons; //total mas of unconstraint molecules |
419 |
+ |
|
420 |
+ |
|
421 |
|
protected: |
422 |
|
|
423 |
< |
enum ZConsState {zcsMoving, zcsFixed}; |
424 |
< |
|
425 |
< |
virtual void calcForce( int calcPot, int calcStress ); |
423 |
> |
|
424 |
> |
|
425 |
> |
virtual void calcForce( int calcPot, int calcStress ); |
426 |
|
virtual void thermalize(void); |
427 |
< |
|
427 |
> |
|
428 |
|
void zeroOutVel(); |
429 |
|
void doZconstraintForce(); |
430 |
< |
void doHarmonic(); |
430 |
> |
void doHarmonic(vector<double>& resPos); |
431 |
|
bool checkZConsState(); |
432 |
|
|
433 |
|
bool haveFixedZMols(); |
442 |
|
double zconsTol; //tolerance of z-contratint |
443 |
|
double zForceConst; //base force constant term |
444 |
|
//which is estimate by OOPSE |
445 |
< |
|
446 |
< |
vector<Molecule*> zconsMols; //z-constraint molecules array |
447 |
< |
vector<double> massOfZConsMols; //mass of z-constraint molecule |
445 |
> |
|
446 |
> |
|
447 |
> |
vector<double> massOfZConsMols; //mass of z-constraint molecule |
448 |
|
vector<double> kz; //force constant array |
449 |
< |
vector<ZConsState> states; //state of z-constraint molecules |
449 |
> |
|
450 |
|
vector<double> zPos; // |
451 |
< |
|
452 |
< |
|
451 |
> |
|
452 |
> |
|
453 |
|
vector<Molecule*> unconsMols; //unconstraint molecules array |
454 |
|
vector<double> massOfUnconsMols; //mass array of unconstraint molecules |
485 |
– |
double totalMassOfUncons; //total mas of unconstraint molecules |
455 |
|
|
456 |
+ |
|
457 |
|
vector<ZConsParaItem>* parameters; // |
458 |
< |
|
458 |
> |
|
459 |
|
vector<int> indexOfAllZConsMols; //index of All Z-Constraint Molecuels |
460 |
|
|
461 |
< |
int* indexOfZConsMols; //index of local Z-Constraint Molecules |
462 |
< |
double* fz; |
463 |
< |
double* curZPos; |
494 |
< |
|
495 |
< |
int totNumOfUnconsAtoms; //total number of uncontraint atoms |
461 |
> |
vector<int> indexOfZConsMols; //index of local Z-Constraint Molecules |
462 |
> |
vector<double> fz; |
463 |
> |
vector<double> curZPos; |
464 |
|
|
465 |
< |
int whichDirection; //constraint direction |
465 |
> |
bool usingSMD; |
466 |
> |
vector<double> prevCantPos; |
467 |
> |
vector<double> cantPos; |
468 |
> |
vector<double> cantVel; |
469 |
> |
|
470 |
> |
double zconsFixTime; |
471 |
> |
double zconsGap; |
472 |
> |
bool hasZConsGap; |
473 |
> |
vector<double> endFixTime; |
474 |
|
|
475 |
+ |
int whichDirection; //constraint direction |
476 |
+ |
|
477 |
|
private: |
478 |
< |
|
478 |
> |
|
479 |
|
string zconsOutput; //filename of zconstraint output |
480 |
|
ZConsWriter* fzOut; //z-constraint writer |
481 |
|
|
482 |
< |
double curZconsTime; |
482 |
> |
double curZconsTime; |
483 |
|
|
484 |
|
double calcMovingMolsCOMVel(); |
485 |
|
double calcSysCOMVel(); |
486 |
|
double calcTotalForce(); |
487 |
+ |
void updateZPos(); |
488 |
+ |
void updateCantPos(); |
489 |
|
|
490 |
|
ForceSubtractionPolicy* forcePolicy; //force subtraction policy |
491 |
|
friend class ForceSubtractionPolicy; |