CylindricalWall.h

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//Copyright (c) 2013-2014, The MercuryDPM Developers Team. All rights reserved.
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#ifndef CYLINDRICALWALL_H
#define CYLINDRICALWALL_H

#include "BaseWall.h"

class CylindricalWall : public BaseWall
{
    public:
    CylindricalWall() : BaseWall()
    {
        #ifdef CONSTUCTOR_OUTPUT
        std::cout<<"CylindricalWall () finished"<<std::endl;
        #endif
    }
    
    CylindricalWall (const CylindricalWall &p) : BaseWall(p)
    {
        radius=p.radius;
        #ifdef CONSTUCTOR_OUTPUT
        std::cout<<"CylindricalWall (const CylindricalWall &p) finished"<<std::endl;
        #endif
    }
    
    CylindricalWall (double radius) : BaseWall()
    {
        this->radius=radius;
        #ifdef CONSTUCTOR_OUTPUT
        std::cout<<"CylindricalWall (double radius) finished"<<std::endl;
        #endif
    }   

    CylindricalWall* copy() const
    {
        return new CylindricalWall(*this);
    } 

    void clear()
    {
        indSpecies = 0;
    }     

    void set(Mdouble radius) 
    {
        this->radius=radius;
    }

    bool get_distance_and_normal(BaseParticle &P, Mdouble &distance, Vec3D &normal_return)
    {
        double R=sqrt(pow(P.get_Position().X,2)+pow(P.get_Position().Y,2));
        distance=radius-R;
        if(distance>=P.get_Radius()) return false;
        
        normal_return.X=P.get_Position().X;
        normal_return.Y=P.get_Position().Y;
        normal_return.Z=0.0;
        normal_return/=normal_return.GetLength();
        
        /*std::cout<<"Contact Cylindrical Wall"<<std::endl;
        std::cout<<"Particle index="<<P.get_Index()<<" position="<<P.get_Position()<<" R="<<R<<std::endl;
        std::cout<<"distance="<<distance<<" normal="<<normal_return<<std::endl;
        std::cout<<"Overlap="<<distance-P.get_Radius()<<" velocity="<<P.get_Velocity()<<std::endl;*/
        return true;
    }

    void read(std::istream& is)  { 
        std::string dummy;
        is >> dummy >> radius;
    }

    void print(std::ostream& os) const { 
        os << "CylindricalWall radius " << radius;
    }

    double get_Radius() {return radius;}
    Vec3D get_Velocity() const {return Vec3D(0.0,0.0,0.0);}

private:
    Mdouble radius;
};

#endif