gfx/povray/csg.h

   1 /****************************************************************************
   2 *                   csg.h
   3 *
   4 *  This module contains all defines, typedefs, and prototypes for CSG.C.
   5 *
   6 *  from Persistence of Vision(tm) Ray Tracer
   7 *  Copyright 1996,1999 Persistence of Vision Team
   8 *---------------------------------------------------------------------------
   9 *  NOTICE: This source code file is provided so that users may experiment
  10 *  with enhancements to POV-Ray and to port the software to platforms other
  11 *  than those supported by the POV-Ray Team.  There are strict rules under
  12 *  which you are permitted to use this file.  The rules are in the file
  13 *  named POVLEGAL.DOC which should be distributed with this file.
  14 *  If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
  15 *  Team Coordinator by email to team-coord@povray.org or visit us on the web at
  16 *  http://www.povray.org. The latest version of POV-Ray may be found at this site.
  17 *
  18 * This program is based on the popular DKB raytracer version 2.12.
  19 * DKBTrace was originally written by David K. Buck.
  20 * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
  21 *
  22 *****************************************************************************/
  23
  24
  25 #ifndef CSG_H
  26 #define CSG_H
  27
  28
  29
  30 /*****************************************************************************
  31 * Global preprocessor defines
  32 ******************************************************************************/
  33
  34 #define UNION_OBJECT        (COMPOUND_OBJECT)
  35 #define MERGE_OBJECT        (COMPOUND_OBJECT)
  36 #define INTERSECTION_OBJECT (COMPOUND_OBJECT)
  37
  38 /* CSG types */
  39
  40 #define CSG_UNION_TYPE             1
  41 #define CSG_INTERSECTION_TYPE      2
  42 #define CSG_DIFFERENCE_TYPE        4
  43 #define CSG_MERGE_TYPE             8
  44 #define CSG_SINGLE_TYPE           16
  45
  46
  47
  48 /*****************************************************************************
  49 * Global typedefs
  50 ******************************************************************************/
  51
  52 typedef struct CSG_Struct CSG;
  53
  54 struct CSG_Struct
  55 {
  56   COMPOUND_FIELDS
  57 };
  58
  59
  60
  61 /*****************************************************************************
  62 * Global variables
  63 ******************************************************************************/
  64
  65 extern METHODS CSG_Intersection_Methods;
  66 extern METHODS CSG_Merge_Methods;
  67 extern METHODS CSG_Union_Methods;
  68
  69
  70
  71 /*****************************************************************************
  72 * Global functions
  73 ******************************************************************************/
  74
  75 CSG *Create_CSG_Union (void);
  76 CSG *Create_CSG_Merge (void);
  77 CSG *Create_CSG_Intersection (void);
  78 void Compute_CSG_BBox (OBJECT *Object);
  79
  80
  81
  82 #endif