www.pudn.com > RayTracing Code.rar > Clipper.h, change:2004-04-15,size:2132b

#if !defined(_CLIPPER_H_) 
#define _CLIPPER_H_ 
 
/** 3DGPL *************************************************\ 
 * ()                                                     * 
 * Header for clipping functions.                         * 
 *                                                        * 
 * Files:                                                 * 
 *  clipp-2d.c               3-D volume and Z clipping;   * 
 *  clipp-3d.c               2-D plane clipping.          * 
 *                                                        * 
 * (c) 1995-98 Sergei Savchenko, (savs@cs.mcgill.ca)      * 
\**********************************************************/ 
 
#include "RayTracing.h"           /* screen dimensions */ 
 
#define C_MAX_DIMENSIONS               8    /* X Y Z R G B Tx Ty */ 
 
#define C_Z_CLIPPING_MIN              10    /* where z plane is */ 
#define C_X_CLIPPING_MIN               0    /* clipping cube */ 
#define C_X_CLIPPING_MAX HW_SCREEN_X_MAX 
#define C_Y_CLIPPING_MIN               0 
#define C_Y_CLIPPING_MAX HW_SCREEN_Y_MAX 
#define C_TOLERANCE                    1    /* when to stop xyz clipping */ 
 
void C_init_clipping(int minx,int miny,int maxx,int maxy); 
void C_get_bounds(int *minx,int *miny,int *maxx,int *maxy); 
int C_set_bounds(int minx,int miny,int maxx,int maxy); 
int C_line_x_clipping(int **vertex1,int **vertex2,int dimension); 
int C_line_y_clipping(int **vertex1,int **vertex2,int dimension); 
int C_polygon_x_clipping(int *from,int *to,int dimension,int length); 
 
int C_volume_clipping(int *min,int *max); 
int C_line_z_clipping(int **vertex1,int **vertex2,int dimension); 
int C_polygon_z_clipping(int *from,int *to,int dimension,int length); 
int C_line_xyz_clipping(int **vertex1,int **vertex2, 
                        int *by1,int *by2,int *by3, 
                        int dimension 
                       ); 
int C_polygon_xyz_clipping(int *from,int *to, 
                           int *by1,int *by2,int *by3, 
                           int dimension,int length 
                          ); 
 
/**********************************************************/ 
 
#endif