gfx/povray/cones.h

   1 /****************************************************************************
   2 *                   cones.h
   3 *
   4 *  This module contains all defines, typedefs, and prototypes for CONES.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 CONES_H
  26 #define CONES_H
  27
  28
  29
  30 /*****************************************************************************
  31 * Global preprocessor defines
  32 ******************************************************************************/
  33
  34 #define CONE_OBJECT (BASIC_OBJECT)
  35
  36
  37
  38 /*****************************************************************************
  39 * Global typedefs
  40 ******************************************************************************/
  41
  42 typedef struct Cone_Struct CYLINDER;
  43 typedef struct Cone_Struct CONE;
  44
  45 struct Cone_Struct
  46 {
  47   OBJECT_FIELDS
  48   TRANSFORM *Trans;   /* Transformation of a Cone object */
  49   VECTOR apex;        /* Center of the top of the cone */
  50   VECTOR base;        /* Center of the bottom of the cone */
  51   DBL apex_radius;    /* Radius of the cone at the top */
  52   DBL base_radius;    /* Radius of the cone at the bottom */
  53   DBL dist;           /* Distance to end of cone in canonical coords */
  54 };
  55
  56
  57
  58 /*****************************************************************************
  59 * Global variables
  60 ******************************************************************************/
  61
  62
  63
  64
  65 /*****************************************************************************
  66 * Global functions
  67 ******************************************************************************/
  68
  69 CONE *Create_Cone (void);
  70 CONE *Create_Cylinder (void);
  71 void Compute_Cone_Data (OBJECT *Object);
  72 void Compute_Cylinder_Data (OBJECT *Object);
  73 void Compute_Cone_BBox (CONE *Cone);
  74
  75
  76
  77 #endif