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Cell.h

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/* $\Id$ 
   Cell.h in library gridlock
   Written by Samit Ahlawat <ahlawat2@uiuc.edu>
   Distributed under GPL (GNU Public License)
*/

#ifndef _CELL_H_
#define _CELL_H_


#include "common_headers.h"

/**************************************************
 * Representation of cell class.                  *
 **************************************************/

struct Cell
{
    /********************************************
     *  |  Your cell based variables here   |   *
     * \|/                                 \|/  *
     *  '                                   '   *
     ********************************************/
        
    /********************************************
         *  .                                   .   *
         * /|\ Your cell based variables above /|\  *
         *  |                                   |   *
         ********************************************/
                
        int global_cell_num;
        float aspect_ratio;
        struct Face** cell_faces;
        int face_num;
        
#ifndef AREA_VOLUME_NORMAL_NOT_NEEDED
        
        /***************************************************
         *+1 means no sign change, 0 means sign reversal   *
         ***************************************************/
        short* face_outward_normal_sign;
        float volume;
#endif

#ifndef CELL_FACE_CENTROID_NOT_NEEDED
        float centroid [3];
#endif
        
        short on_boundary;
};

void static_cell_ds_init (void);

void get_cell_edges (struct Edge*** cell_ed, int* num_ed, struct Cell* cl);

void get_cell_vertices (struct Vertex*** cell_vt, int* num_vt, struct Cell* cl);

void cell_init (int cl_num, int fc_num, struct Cell* cl);

void set_this_cell (struct Cell* cl);

void compute_aspect_ratio (struct Cell* cl);

void count_cell_vertices (struct Vertex*** cell_vt, int* num_vt, int** count_arr, struct Cell* cl);

#ifndef AREA_VOLUME_NORMAL_NOT_NEEDED
void compute_volume (struct Cell* cl);

int get_face_normal_sign (struct Face* fc, struct Cell* cl);

void compute_face_normal_sign (struct Cell* cl);
#endif


void print_cl_debug_info (struct Cell* cl);

void output_cell (FILE* fp, struct Cell* cl);

void cell_destroy (struct Cell* cl);

void static_cell_ds_destroy (void);

#endif

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