1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*******************************************************************************
* cones.h
*
* This module contains all defines, typedefs, and prototypes for CONES.CPP.
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
* ---------------------------------------------------------------------------
* $File: //depot/public/povray/3.x/source/backend/shape/cones.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#ifndef CONES_H
#define CONES_H
namespace pov
{
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
#define CONE_OBJECT (BASIC_OBJECT)
/*****************************************************************************
* Global typedefs
******************************************************************************/
class Cone : public ObjectBase
{
struct CONE_INT
{
DBL d; /* Distance of intersection point */
int t; /* Type of intersection: base/cap plane or side */
};
public:
VECTOR apex; /* Center of the top of the cone */
VECTOR base; /* Center of the bottom of the cone */
DBL apex_radius; /* Radius of the cone at the top */
DBL base_radius; /* Radius of the cone at the bottom */
DBL dist; /* Distance to end of cone in canonical coords */
Cone();
virtual ~Cone();
void Cylinder();
virtual ObjectPtr Copy();
virtual bool All_Intersections(const Ray&, IStack&, TraceThreadData *);
virtual bool Inside(const VECTOR, TraceThreadData *) const;
virtual void Normal(VECTOR, Intersection *, TraceThreadData *) const;
// virtual void UVCoord(UV_VECT, const Intersection *, TraceThreadData *) const; // TODO FIXME - why is there no UV-mapping for this simple object?
virtual void Translate(const VECTOR, const TRANSFORM *);
virtual void Rotate(const VECTOR, const TRANSFORM *);
virtual void Scale(const VECTOR, const TRANSFORM *);
virtual void Transform(const TRANSFORM *);
virtual void Invert();
virtual void Compute_BBox();
void Compute_Cone_Data();
void Compute_Cylinder_Data();
protected:
int Intersect(const Ray& ray, CONE_INT *Intersection, TraceThreadData *Thread) const;
};
}
#endif
|
