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wall.hh
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// Voro++, a 3D cell-based Voronoi library
//
// Author : Chris H. Rycroft (LBL / UC Berkeley)
// Email : chr@alum.mit.edu
// Date : August 30th 2011
/** \file wall.hh
* \brief Header file for the derived wall classes. */
#ifndef VOROPP_WALL_HH
#define VOROPP_WALL_HH
#include "cell.hh"
#include "container.hh"
namespace voro {
/** \brief A class representing a spherical wall object.
*
* This class represents a spherical wall object. */
struct wall_sphere : public wall {
public:
/** Constructs a spherical wall object.
* \param[in] w_id_ an ID number to associate with the wall for
* neighbor tracking.
* \param[in] (xc_,yc_,zc_) a position vector for the sphere's
* center.
* \param[in] rc_ the radius of the sphere. */
wall_sphere(double xc_,double yc_,double zc_,double rc_,int w_id_=-99)
: w_id(w_id_), xc(xc_), yc(yc_), zc(zc_), rc(rc_) {}
bool point_inside(double x,double y,double z);
template<class v_cell>
bool cut_cell_base(v_cell &c,double x,double y,double z);
bool cut_cell(voronoicell &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
bool cut_cell(voronoicell_neighbor &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
private:
const int w_id;
const double xc,yc,zc,rc;
};
/** \brief A class representing a plane wall object.
*
* This class represents a single plane wall object. */
struct wall_plane : public wall {
public:
/** Constructs a plane wall object.
* \param[in] (xc_,yc_,zc_) a normal vector to the plane.
* \param[in] ac_ a displacement along the normal vector.
* \param[in] w_id_ an ID number to associate with the wall for
* neighbor tracking. */
wall_plane(double xc_,double yc_,double zc_,double ac_,int w_id_=-99)
: w_id(w_id_), xc(xc_), yc(yc_), zc(zc_), ac(ac_) {}
bool point_inside(double x,double y,double z);
template<class v_cell>
bool cut_cell_base(v_cell &c,double x,double y,double z);
bool cut_cell(voronoicell &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
bool cut_cell(voronoicell_neighbor &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
private:
const int w_id;
const double xc,yc,zc,ac;
};
/** \brief A class representing a cylindrical wall object.
*
* This class represents a open cylinder wall object. */
struct wall_cylinder : public wall {
public:
/** Constructs a cylinder wall object.
* \param[in] (xc_,yc_,zc_) a point on the axis of the
* cylinder.
* \param[in] (xa_,ya_,za_) a vector pointing along the
* direction of the cylinder.
* \param[in] rc_ the radius of the cylinder
* \param[in] w_id_ an ID number to associate with the wall for
* neighbor tracking. */
wall_cylinder(double xc_,double yc_,double zc_,double xa_,double ya_,double za_,double rc_,int w_id_=-99)
: w_id(w_id_), xc(xc_), yc(yc_), zc(zc_), xa(xa_), ya(ya_), za(za_),
asi(1/(xa_*xa_+ya_*ya_+za_*za_)), rc(rc_) {}
bool point_inside(double x,double y,double z);
template<class v_cell>
bool cut_cell_base(v_cell &c,double x,double y,double z);
bool cut_cell(voronoicell &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
bool cut_cell(voronoicell_neighbor &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
private:
const int w_id;
const double xc,yc,zc,xa,ya,za,asi,rc;
};
/** \brief A class representing a conical wall object.
*
* This class represents a cone wall object. */
struct wall_cone : public wall {
public:
/** Constructs a cone wall object.
* \param[in] (xc_,yc_,zc_) the apex of the cone.
* \param[in] (xa_,ya_,za_) a vector pointing along the axis of
* the cone.
* \param[in] ang the angle (in radians) of the cone, measured
* from the axis.
* \param[in] w_id_ an ID number to associate with the wall for
* neighbor tracking. */
wall_cone(double xc_,double yc_,double zc_,double xa_,double ya_,double za_,double ang,int w_id_=-99)
: w_id(w_id_), xc(xc_), yc(yc_), zc(zc_), xa(xa_), ya(ya_), za(za_),
asi(1/(xa_*xa_+ya_*ya_+za_*za_)),
gra(tan(ang)), sang(sin(ang)), cang(cos(ang)) {}
bool point_inside(double x,double y,double z);
template<class v_cell>
bool cut_cell_base(v_cell &c,double x,double y,double z);
bool cut_cell(voronoicell &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
bool cut_cell(voronoicell_neighbor &c,double x,double y,double z) {return cut_cell_base(c,x,y,z);}
private:
const int w_id;
const double xc,yc,zc,xa,ya,za,asi,gra,sang,cang;
};
}
#endif

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