a_3dh.cxx

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/*
Copyright 2019 Pierre SMARS (smars@yuntech.edu.tw)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "a_3dh.h"
#include <sstream>
//---------------------------------------------------------------------------
const std::string a_3dh::help()
{
        std::ostringstream o;
        o << "*****" << std::endl;
        o << "a_3dh" << std::endl;
        o << "****" << std::endl;
        o << "This is a 3 dimensional homogeneous point class" << std::endl;
        o << "Commands:" << std::endl;
        o << "--------" << std::endl;
        o << "X: set or get the homogeneous coordinate" << std::endl;
        o << "Y: set or get the homogeneous coordinate" << std::endl;
        o << "Z: set or get the homogeneous coordinate" << std::endl;
        o << "T: set or get the homogeneous coordinate" << std::endl;
        o << "x: get the coordinate (no check)" << std::endl;
        o << "y: get the coordinate (no check)" << std::endl;
        o << "z: get the coordinate (no check)" << std::endl;
        o << "set x y z (t): set the coordinates" << std::endl;
        o << "set a_point: set the coordinates" << std::endl;
        o << "point: get a_point representation (no check)" << std::endl;
        return o.str();
}
//---------------------------------------------------------------------------
a_3dh::a_3dh(const a_mat& m) : a_mat_c(4)
{
        if (m.maxi() != maxi_) throw compatibility_error();
        if (m.maxj() != maxj_) throw compatibility_error();
        for (int i = 0; i<4; i++)
                (*this)(i)= m(i,0);
}
//***************************************************************************
//-operator>>----------------------------------------------------------------
std::istream& operator>> (std::istream& i, a_3dh & m)
{
        double x,y,z;
        i >> x >> y >> z;
        m.X(x);
        m.Y(y);
        m.Z(z);
        m.T(1.);
        return i;
}
//-operator<<----------------------------------------------------------------
std::ostream& operator<< (std::ostream& o, const a_3dh & m)
{
        o << m.x() << " " << m.y() << " " << m.z() << std::endl;
        return o;
}