a_block_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_BLOCK_2D4_H_
#define _A_BLOCK_2D4_H_
 
#include "a_block.h"
 
class a_block_2d4 : public a_block
{
public:
        a_block_2d4();
        ~a_block_2d4();
        a_block_2d4(a_point* p1, a_point* p2, a_point* p3, a_point* p4, double thickness=1.);
        static const std::string help();
        virtual void copy(const a_block_2d4&);
        virtual void deepcopy(const a_block_2d4&);
        virtual std::string name() const {return "a_block_2d4";}
        void thickness(const double thickness) {*thickness_=thickness;};
        double thickness() const {return *thickness_;}
        double * thickness_p() const {return thickness_;}
        a_point v3d(const int i) const;
        inline int nvt() const {return 8;}
        inline int nit() const {return 6;}
        double V() const;
        virtual a_point cl() const;
        a_point normall() const;
        a_point normal() const;
//      void compute();
        virtual void read(std::istream &i);
        virtual void write(std::ostream &o) const;
        //write a triangle face representation of the block
        virtual void writetri(std::ostream &o) const;
        virtual void writeb(std::ostream &o) const;
        virtual void writeg(std::ostream &o) const;
        void writefaces(std::ostream &o, const int base) const;
        void trianglecloud(a_trianglecloud&) const;
protected:
        double * thickness_;
private:
        void create_faces();
};
 
a_block_2d4 * cb_2d4(a_block * b);
 
#endif