forked from lijiext/lammps
84 lines
3.3 KiB
C++
84 lines
3.3 KiB
C++
/*
|
|
*_________________________________________________________________________*
|
|
* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
|
|
* DESCRIPTION: SEE READ-ME *
|
|
* FILE NAME: mat3x3.h *
|
|
* 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 *
|
|
*_________________________________________________________________________*/
|
|
|
|
#ifndef MAT3X3_H
|
|
#define MAT3X3_H
|
|
|
|
#include "virtualmatrix.h"
|
|
|
|
|
|
class Vect3;
|
|
class Mat6x6;
|
|
class Matrix;
|
|
class ColMatrix;
|
|
|
|
class Mat3x3 : public VirtualMatrix {
|
|
double elements[3][3];
|
|
public:
|
|
Mat3x3();
|
|
~Mat3x3();
|
|
Mat3x3(const Mat3x3& A); // copy constructor
|
|
Mat3x3(const VirtualMatrix& A); // copy constructor
|
|
|
|
double& operator_2int (int i, int j); // array access
|
|
double Get_2int(int i, int j) const;
|
|
void Set_2int(int i, int j, double value);
|
|
double BasicGet_2int(int i, int j) const;
|
|
void BasicSet_2int(int i, int j, double value);
|
|
void BasicIncrement_2int(int i, int j, double value);
|
|
|
|
void Const(double value);
|
|
MatrixType GetType() const;
|
|
std::istream& ReadData(std::istream& c); // input
|
|
std::ostream& WriteData(std::ostream& c) const; // output
|
|
|
|
void AssignVM(const VirtualMatrix& A);
|
|
Mat3x3& operator=(const Mat3x3& A); // assignment operator
|
|
Mat3x3& operator=(const VirtualMatrix& A); // overloaded =
|
|
Mat3x3& operator*=(double b);
|
|
|
|
Mat3x3& Identity();
|
|
|
|
friend Mat3x3 T(const Mat3x3& A); // a wasteful transpose
|
|
friend Mat3x3 CrossMat(Vect3& a); // a wasteful cross matrix implementation
|
|
|
|
friend void FastSimpleRotation(Vect3& v, double q, Mat3x3& d);
|
|
friend void FastQuaternions(ColMatrix& q, Mat3x3& C);
|
|
friend void FastInvQuaternions(Mat3x3& C, ColMatrix& q);
|
|
friend void FastLU(Mat3x3& A, Mat3x3& LU, int *indx);
|
|
friend void FastLUSubs(Mat3x3& LU, Mat3x3& B, Mat3x3& C, int *indx);
|
|
friend void FastMult(Mat3x3& A, Vect3& B, Vect3& C);
|
|
friend void FastTMult(Mat3x3& A, Vect3& B, Vect3& C);
|
|
friend void FastNegMult(Mat3x3& A, Vect3& B, Vect3& C);
|
|
friend void FastNegTMult(Mat3x3& A, Vect3& B, Vect3& C);
|
|
friend void FastMult(Mat3x3& A, Mat3x3& B, Mat3x3& C);
|
|
friend void FastMultT(Mat3x3& A, Mat3x3& B, Mat3x3& C);
|
|
friend void FastAssignT(Mat3x3& A, Mat3x3& C);
|
|
friend void FastMult(Mat3x3& A, Vect3& B, ColMatrix& C);
|
|
|
|
friend void OnPopulateSC(Vect3& gamma, Mat3x3& C, Mat6x6& SC);
|
|
friend void OnPopulateSI(Mat3x3& inertia, double mass, Mat6x6& sI);
|
|
|
|
friend void FastMult(Mat3x3& A, ColMatrix& B, Vect3& C);
|
|
|
|
friend void EP_Transformation(ColMatrix& q, Mat3x3& C);
|
|
friend void EP_FromTransformation(ColMatrix& q, Mat3x3& C);
|
|
|
|
};
|
|
|
|
#endif
|