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lammps/lib/poems/vect3.cpp
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vect3.cpp
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/*
*_________________________________________________________________________*
* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
* DESCRIPTION: SEE READ-ME *
* FILE NAME: vect3.cpp *
* AUTHORS: See Author List *
* GRANTS: See Grants List *
* COPYRIGHT: (C) 2005 by Authors as listed in Author's List *
* LICENSE: Please see License Agreement *
* DOWNLOAD: Free at www.rpi.edu/~anderk5 *
* ADMINISTRATOR: Prof. Kurt Anderson *
* Computational Dynamics Lab *
* Rensselaer Polytechnic Institute *
* 110 8th St. Troy NY 12180 *
* CONTACT: anderk5@rpi.edu *
*_________________________________________________________________________*/
#include "vect3.h"
#include <cstdlib>
using namespace std;
Vect3::Vect3(){
numrows = 3; numcols = 1;
}
Vect3::~Vect3(){
}
Vect3::Vect3(const Vect3& A){ // copy constructor
numrows = 3; numcols = 1;
elements[0] = A.elements[0];
elements[1] = A.elements[1];
elements[2] = A.elements[2];
}
Vect3::Vect3(const VirtualMatrix& A){ // copy constructor
numrows = 3; numcols = 1;
// error check
if( (A.GetNumRows() != 3) || (A.GetNumCols() != 1) ){
cerr << "illegal matrix size" << endl;
exit(0);
}
for(int i=0;i<3;i++)
elements[i] = A.BasicGet(i,0);
}
double& Vect3::operator_1int (int i){ // array access
if(i<1 || i>3){
cerr << "matrix index invalid in operator ()" << endl;
exit(1);
}
return elements[i-1];
}
double Vect3::Get_1int(int i) const{
return elements[i-1];
}
void Vect3::Set_1int(int i, double value){
elements[i-1] = value;
}
double Vect3::BasicGet_1int(int i) const{
return elements[i];
}
void Vect3::BasicSet_1int(int i, double value){
elements[i] = value;
}
void Vect3::BasicIncrement_1int(int i, double value){
elements[i] += value;
}
void Vect3::Const(double value){
elements[0] = value;
elements[1] = value;
elements[2] = value;
}
MatrixType Vect3::GetType() const{
return VECT3;
}
istream& Vect3::ReadData(istream& c){ //input
for(int i=0;i<3;i++)
c >> elements[i];
return c;
}
ostream& Vect3::WriteData(ostream& c) const{ //output
for(int i=0;i<3;i++)
c << elements[i] << ' ';
return c;
}
void Vect3::AssignVM(const VirtualMatrix& A){
// error check
if( (A.GetNumRows() != 3) || (A.GetNumCols() != 1) ){
cerr << "illegal matrix size" << endl;
exit(0);
}
for(int i=0;i<numrows;i++)
elements[i] = A.BasicGet(i,0);
}
Vect3& Vect3::operator=(const Vect3& A){ // assignment operator
elements[0] = A.elements[0];
elements[1] = A.elements[1];
elements[2] = A.elements[2];
return *this;
}
Vect3& Vect3::operator=(const VirtualMatrix& A){ // overloaded =
// error check
if( (A.GetNumRows() != 3) || (A.GetNumCols() != 1) ){
cerr << "illegal matrix size" << endl;
exit(0);
}
for(int i=0;i<numrows;i++)
elements[i] = A.BasicGet(i,0);
return *this;
}
Vect3& Vect3::operator*=(double b){
elements[0] *= b;
elements[1] *= b;
elements[2] *= b;
return *this;
}
Vect3& Vect3::operator+=(const Vect3& A){
elements[0] += A.elements[0];
elements[1] += A.elements[1];
elements[2] += A.elements[2];
return *this;
}
Vect3& Vect3::operator-=(const Vect3& A){
elements[0] -= A.elements[0];
elements[1] -= A.elements[1];
elements[2] -= A.elements[2];
return *this;
}
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