a_plane.h

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/*
         Copyright 2010-2017 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/>.
         */
#ifndef _A_PLANE_H_
#define _A_PLANE_H_
 
#include <iostream>
#include "a_3dh.h" 
#include "a_point.h" 
#include "a_segment.h" 
#include "a_coord.h" 
 
class a_plane : public a_3dh
{
        public:
                a_plane() {};
                a_plane(const a_point& p1, const a_point& p2, const a_point& p3);
                a_plane(const a_plane& p) {X(p.X()); Y(p.Y()); Z(p.Z());}
                virtual const std::string classname() { return "a_plane";}
                static const std::string help();
                a_point n() const;
                double d0() const {return this->Z();}
                void d0(const double d) {this->Z(d);}
                a_point p0() const;
                double dist(const a_point& p) const;
                a_point closest(const a_point& p) const;
                a_point intersect(const a_segment& s) const;
                a_segment intersect(const a_plane & p) const;
                bool contains(const a_point& p) const;
                void move(a_coord c); //c is changed inside
 
                class segment_parallel_error {};
                class plane_parallel_error {};
 
                //: input/output
                virtual void read(std::istream &i);
                virtual void write(std::ostream &o) const;
                friend   std::istream&    operator>> (std::istream& i, a_plane& m);
                friend   std::ostream&    operator<< (std::ostream& o, const a_plane& m);
 
        protected:
};
 
#endif