a_face_2d4.h

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/*
Copyright 2010-2016 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_FACE_2D4_H_
#define _A_FACE_2D4_H_
 
#include <vector>
 
#include "a_face.h"
#include "a_block.h"
#include "a_plane.h"
#include "a_triangle.h"
 
class a_face_2d4 : public a_face
{
public:
        a_face_2d4(a_block * b, int ref_face) : a_face(b,ref_face) {};
        double thickness() const;
        double length() const;
        virtual double S() const;
        virtual a_point cl() const;
        a_point v3d(const int i) const;
        a_point nx() const;
        a_point ny() const;
        a_point normal() const;
        double dyM() const;
  double dym() const;
        a_plane plane() const {return a_plane(v(0),v(1),v(0)+this->ny());}
        void slide(const double& u, const double& v);
        int ptsinplane(const a_plane& p) const;
        void grow(const double& val);
        double exrx() const; 
        double exry() const;
        std::vector<a_triangle> triangles() const;
        bool contains(const a_point& p) const;
        a_segment segment(const int i) const;
        a_segment intersect(const a_segment& s) const;
        virtual int contacttype() const;
        virtual a_point contactpoint() const;
        virtual a_segment contactsegment() const;
        virtual a_contact contactface() const;
        //: input/output
        //        friend   std::istream&    operator>> (std::istream& i,       a_face& b);
        //        friend   std::ostream&    operator<< (std::ostream& o, const a_face& b);
 
protected:
};
 
a_face_2d4 * cf_2d4(a_face * f);
const a_face_2d4 * cf_2d4(const a_face * f);
 
#endif