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#ifndef _ATOM_H_ |
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#define _ATOM_H_ |
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|
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#include <cstring> |
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#include <iostream> |
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|
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class Atom{ |
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public: |
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Atom(int theIndex) { |
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c_n_hyd = 0; |
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has_dipole = 0; |
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is_VDW = 0; |
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is_LJ = 0; |
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index = theIndex; |
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offset = 3 * index; |
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} |
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virtual ~Atom() {} |
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|
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static void createArrays (int nElements) { |
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pos = new double[nElements*3]; |
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vel = new double[nElements*3]; |
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frc = new double[nElements*3]; |
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trq = new double[nElements*3]; |
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} |
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static void destroyArrays(void) { |
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delete[] pos; |
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delete[] vel; |
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delete[] frc; |
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delete[] trq; |
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} |
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|
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double getX() const {return pos[offset];} |
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double getY() const {return pos[offset+1];} |
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double getZ() const {return pos[offset+2];} |
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void setX(double x) {pos[offset] = x;} |
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void setY(double y) {pos[offset+1] = y;} |
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void setZ(double z) {pos[offset+2] = z;} |
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|
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double get_vx() const {return vel[offset];} |
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double get_vy() const {return vel[offset+1];} |
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double get_vz() const {return vel[offset+2];} |
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void set_vx(double vx) {vel[offset] = vx;} |
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void set_vy(double vy) {vel[offset+1] = vy;} |
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void set_vz(double vz) {vel[offset+2] = vz;} |
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|
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double getFx() const {return frc[offset];} |
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double getFy() const {return frc[offset+1];} |
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double getFz() const {return frc[offset+2];} |
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void addFx(double add) {frc[offset] += add;} |
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void addFy(double add) {frc[offset+1] += add;} |
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void addFz(double add) {frc[offset+2] += add;} |
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virtual void zeroForces() = 0; |
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|
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double getMass() const {return c_mass;} |
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void setMass(double mass) {c_mass = mass;} |
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|
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double getSigma() const {return c_sigma;} |
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void setSigma(double sigma) {c_sigma = sigma;} |
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|
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double getEpslon() const {return c_epslon;} |
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void setEpslon(double epslon) {c_epslon = epslon;} |
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|
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double getCovalent() const {return c_covalent;} |
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void setCovalent(double covalent) {c_covalent = covalent;} |
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|
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int getIndex() const {return index;} |
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void setIndex(int theIndex) {index = theIndex; offset = index*3;} |
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|
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char *getType() {return c_name;} |
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void setType(char * name) {strcpy(c_name,name);} |
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void set_n_hydrogens( int n_h ) {c_n_hyd = n_h;} |
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int get_n_hydrogens() const {return c_n_hyd;} |
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void setHasDipole( int value ) { has_dipole = value; } |
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int hasDipole( void ) { return has_dipole; } |
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void setLJ( void ) { is_LJ = 1; is_VDW = 0; } |
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int isLJ( void ) { return is_LJ; } |
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void seVDW( void ) { is_VDW = 1; is_LJ = 0; } |
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int isVDW( void ) { return is_VDW; } |
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virtual int isDirectional( void ) = 0; |
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|
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static double* pos; // the position array |
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static double* vel; // the velocity array |
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static double* frc; // the forc array |
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static double* trq; // the torque vector ( space fixed ) |
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protected: |
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|
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double c_mass; /* the mass of the atom in amu */ |
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double c_sigma; /* the sigma parameter for van der walls interactions */ |
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double c_epslon; /* the esplon parameter for VDW interactions */ |
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double c_covalent; // The covalent radius of the atom. |
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int index; /* set the atom's index */ |
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int offset; // the atom's offset in the storage array |
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char c_name[100]; /* it's name */ |
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int c_n_hyd; // the number of hydrogens bonded to the atom |
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int has_dipole; // dipole boolean |
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int is_VDW; // VDW boolean |
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int is_LJ; // LJ boolean |
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|
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}; |
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class GeneralAtom : public Atom{ |
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public: |
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GeneralAtom(int theIndex): Atom(theIndex){} |
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virtual ~GeneralAtom(){} |
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int isDirectional( void ){ return 0; } |
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void zeroForces() { |
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frc[offset] = 0.0; |
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frc[offset+1] = 0.0; |
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frc[offset+2] = 0.0; |
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} |
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}; |
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|
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class DirectionalAtom : public Atom { |
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|
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public: |
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DirectionalAtom(int theIndex) : Atom(theIndex) |
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{ |
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ssdIdentity = 0; |
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} |
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virtual ~DirectionalAtom() {} |
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|
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static void createDArrays(int nElements){ |
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trq = new double[nElements*3]; |
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} |
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static void destroyDArrays(void){ |
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delete[] trq; |
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} |
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int isDirectional(void) { return 1; } |
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void setSSD( int value) { ssdIdentity = value; } |
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int isSSD(void) {return ssdIdentity; } |
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void setA( double the_A[3][3] ); |
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void setI( double the_I[3][3] ); |
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void setQ( double the_q[4] ); |
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void setEuler( double phi, double theta, double psi ); |
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void setSUx( double the_sux ) { sux = the_sux; } |
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void setSUy( double the_suy ) { suy = the_suy; } |
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void setSUz( double the_suz ) { suz = the_suz; } |
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void setJx( double the_jx ) { jx = the_jx; } |
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void setJy( double the_jy ) { jy = the_jy; } |
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void setJz( double the_jz ) { jz = the_jz; } |
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void addTx( double the_tx ) { trq[offset] += the_tx;} |
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void addTy( double the_ty ) { trq[offset+1] += the_ty;} |
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void addTz( double the_tz ) { trq[offset+2] += the_tz;} |
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void setMu( double the_mu ) { mu = the_mu; } |
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void zeroForces() { |
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frc[offset] = 0.0; |
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frc[offset+1] = 0.0; |
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frc[offset+2] = 0.0; |
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trq[offset] = 0.0; |
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trq[offset+1] = 0.0; |
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trq[offset+2] = 0.0; |
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} |
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double getAxx( void ) { return Axx; } |
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double getAxy( void ) { return Axy; } |
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double getAxz( void ) { return Axz; } |
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double getAyx( void ) { return Ayx; } |
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double getAyy( void ) { return Ayy; } |
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double getAyz( void ) { return Ayz; } |
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double getAzx( void ) { return Azx; } |
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double getAzy( void ) { return Azy; } |
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double getAzz( void ) { return Azz; } |
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void getA( double the_A[3][3] ); // get the full rotation matrix |
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double getSUx( void ) { return sux; } |
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double getSUy( void ) { return suy; } |
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double getSUz( void ) { return suz; } |
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void getU( double the_u[3] ); // get the unit vector |
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void getQ( double the_q[4] ); // get the quanternions |
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double getJx( void ) { return jx; } |
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double getJy( void ) { return jy; } |
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double getJz( void ) { return jz; } |
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double getTx( void ) { return trq[offset];} |
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double getTy( void ) { return trq[offset+1]; } |
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double getTz( void ) { return trq[offset+2]; } |
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double getIxx( void ) { return Ixx; } |
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double getIxy( void ) { return Ixy; } |
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double getIxz( void ) { return Ixz; } |
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double getIyx( void ) { return Iyx; } |
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double getIyy( void ) { return Iyy; } |
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double getIyz( void ) { return Iyz; } |
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double getIzx( void ) { return Izx; } |
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double getIzy( void ) { return Izy; } |
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double getIzz( void ) { return Izz; } |
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double getMu( void ) { return mu; } |
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void lab2Body( double r[3] ); |
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void body2Lab( double r[3] ); |
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|
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private: |
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int dIndex; |
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|
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double Axx, Axy, Axz; // the rotational matrix |
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double Ayx, Ayy, Ayz; |
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double Azx, Azy, Azz; |
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|
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double sux, suy, suz; // the standard unit vector ( body fixed ) |
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double jx, jy, jz; // the angular momentum vector ( body fixed ) |
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double Ixx, Ixy, Ixz; // the inertial tensor matrix ( body fixed ) |
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double Iyx, Iyy, Iyz; |
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double Izx, Izy, Izz; |
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double mu; // the magnitude of the dipole moment |
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int ssdIdentity; // boolean of whether atom is ssd |
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}; |
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#endif |
