gfx/povray/sor.h

   1 /****************************************************************************
   2 *                   sor.h
   3 *
   4 *  This module contains all defines, typedefs, and prototypes for SOR.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
  26 #ifndef SOR_H
  27 #define SOR_H
  28
  29 #include "bcyl.h"
  30
  31
  32
  33 /*****************************************************************************
  34 * Global preprocessor definitions
  35 ******************************************************************************/
  36
  37 #define SOR_OBJECT (STURM_OK_OBJECT)
  38
  39 /* Generate additional surface of revolution statistics. */
  40
  41 #define SOR_EXTRA_STATS 1
  42
  43
  44
  45
  46 /*****************************************************************************
  47 * Global typedefs
  48 ******************************************************************************/
  49
  50 typedef struct Sor_Struct SOR;
  51 typedef struct Sor_Spline_Entry_Struct SOR_SPLINE_ENTRY;
  52 typedef struct Sor_Spline_Struct SOR_SPLINE;
  53
  54 struct Sor_Spline_Entry_Struct
  55 {
  56   DBL A, B, C, D;
  57 };
  58
  59 struct Sor_Spline_Struct
  60 {
  61   int References;
  62   SOR_SPLINE_ENTRY *Entry;
  63   BCYL *BCyl;                 /* bounding cylinder.                  */
  64 };
  65
  66 struct Sor_Struct
  67 {
  68   OBJECT_FIELDS
  69   TRANSFORM *Trans;
  70   int Number;
  71   SOR_SPLINE *Spline;      /* List of spline segments     */
  72   DBL Height1, Height2;    /* Min./Max. height            */
  73   DBL Radius1, Radius2;    /* Min./Max. radius            */
  74   DBL Base_Radius_Squared; /* Radius**2 of the base plane */
  75   DBL Cap_Radius_Squared;  /* Radius**2 of the cap plane  */
  76 };
  77
  78
  79
  80 /*****************************************************************************
  81 * Global variables
  82 ******************************************************************************/
  83
  84
  85
  86
  87 /*****************************************************************************
  88 * Global functions
  89 ******************************************************************************/
  90
  91 SOR  *Create_Sor (void);
  92 void Compute_Sor_BBox (SOR *Sor);
  93 void Compute_Sor (SOR *Sor, UV_VECT *P);
  94
  95
  96
  97 #endif