grid_meshball.h

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#ifndef GRID_MESHBALL_H
#define GRID_MESHBALL_H
 
#include "grid_bigcell.h"
 
class Grid_MeshBall : public Grid_BigCell
{
    public:
        Grid_MeshBall();
        ~Grid_MeshBall();
        // cartesian coordinates of meshball.
        std::vector<std::vector<double>> meshball_positions;
 
        Grid_MeshBall& operator=(Grid_MeshBall&& rhs) = default;
 
      protected:
        // number of meshcells in meshball.
        int meshball_ncells=0;
        // used in index2normal
        std::vector<int> index_ball;
        // search each meshcell of this meshball.
        void init_meshball(void);
 
    private:
        // init the meshball radius.
        double meshball_radius=0.0;
        // Handle as a truncation function.
        double deal_with_atom_spillage(const double* pos);
    
};
#endif