Clipper.h
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上传日期：2013-03-07
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- #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
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