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inertialframe.cpp
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			/*
			_________________________________________________________________________
			* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
			* DESCRIPTION: SEE READ-ME *
			* FILE NAME: inertialframe.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 "inertialframe.h"
			#include "fixedpoint.h"

			using namespace std;

			InertialFrame::InertialFrame(){
			gravity.Zeros();
			n_C_k.Identity();

			r.Zeros();
			v.Zeros();
			v_k.Zeros();
			a.Zeros();
			omega.Zeros();
			omega_k.Zeros();
			alpha.Zeros();
			alpha_t.Zeros();
			}
			InertialFrame::~InertialFrame(){
			}

			BodyType InertialFrame::GetType(){
			return INERTIALFRAME;
			}

			Vect3 InertialFrame::GetGravity(){
			return gravity;
			}

			void InertialFrame::SetGravity(Vect3& g){
			gravity = g;
			}

			bool InertialFrame::ReadInBodyData(istream& in){
			in >> gravity;
			return true;
			}

			void InertialFrame::WriteOutBodyData(ostream& out){
			out << gravity;
			}