-
Notifications
You must be signed in to change notification settings - Fork 1
/
Ray.cpp
200 lines (141 loc) · 4.78 KB
/
Ray.cpp
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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
// Ray.cpp: implementation of the CRay class.
//
//////////////////////////////////////////////////////////////////////
#include "Ray.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CRay::CRay()
{
}
CRay::~CRay()
{
}
/*********************************************************************
NAME : CRay
DESCRIPTION: Parameterized constructor
PARAMETER : ptOrigin : The point in 3D space where the ray
originates
ptDestination : The point where the ray ends
RETURN : NONE
EXCEPTION : NONE.
*********************************************************************/
CRay::CRay(CPoint3D ptOrigin, CPoint3D ptDestination, float IOR)
{
m_ptOrigin = ptOrigin;
m_ptDestination = ptDestination;
m_vecDirection = ptDestination - ptOrigin;
m_fMagnitude = m_vecDirection.Magnitude();
m_fIndexOfRefraction = IOR;
m_vecDirection.Normalize();
}
/*********************************************************************
NAME : CRay
DESCRIPTION: Overloaded constructor....creates a ray object given a
vector
PARAMETER : vec : The vector to construct the ray from
RETURN : NONE
EXCEPTION : NONE.
*********************************************************************/
CRay::CRay(CVector& vec)
{
m_ptOrigin = CPoint3D (0.0f, 0.0f, 0.0f);
m_ptDestination = CPoint3D (vec.XComponent(), vec.YComponent(), vec.ZComponent());
m_vecDirection = vec;
m_fMagnitude = vec.Magnitude();
/******************************************************/
// Do something about this real soon!
m_fIndexOfRefraction = 1;
/******************************************************/
m_vecDirection.Normalize();
}
/*********************************************************************
NAME : CRay
DESCRIPTION: Overloaded constructor....creates a ray object given a
vector
PARAMETER : vec : The vector to construct the ray from
RETURN : NONE
EXCEPTION : NONE.
*********************************************************************/
CRay& CRay:: operator=(const CVector& vec)
{
m_ptOrigin = CPoint3D (0.0f, 0.0f, 0.0f);
m_ptDestination = CPoint3D (vec.XComponent(), vec.YComponent(), vec.ZComponent());
m_vecDirection = vec;
m_fMagnitude = vec.Magnitude();
/******************************************************/
// Do something about this real soon!
m_fIndexOfRefraction = 1;
/******************************************************/
m_vecDirection.Normalize();
return *this;
}
/*********************************************************************
NAME : Origin
DESCRIPTION: Gets the CPoint3D object denoting the origin of the ray.
PARAMETER : NONE.
RETURN : CPoint3D object containing the origin
EXCEPTION : NONE.
*********************************************************************/
CPoint3D CRay::Origin ()
{
return m_ptOrigin;
}
/*********************************************************************
NAME : Destination
DESCRIPTION: Gets the CPoint3D object denoting the end point of the ray.
PARAMETER : NONE.
RETURN : CPoint3D object containing the ending point
EXCEPTION : NONE.
*********************************************************************/
CPoint3D CRay::Destination()
{
return m_ptDestination;
}
/*********************************************************************
NAME : Direction
DESCRIPTION: Returns the CVector object containing the direction of
the ray.
PARAMETER : NONe
RETURN : The CVector object containing the direction
EXCEPTION : NONE.
*********************************************************************/
CVector CRay::Direction ()
{
return m_vecDirection;
}
/*********************************************************************
NAME : Magnitude
DESCRIPTION: returns the Magnitude of the ray.
PARAMETER : NONE
RETURN : The magnitude in floating point
EXCEPTION : NONE.
*********************************************************************/
float CRay::Magnitude ()
{
return m_fMagnitude;
}
/*********************************************************************
NAME : IOR
DESCRIPTION: Returns the index of refraction of the medium the ray
is travelling inside.
PARAMETER : NONE
RETURN : float : The index of refraction.
EXCEPTION : NONE.
*********************************************************************/
float CRay::IOR()
{
return m_fIndexOfRefraction;
}
/*********************************************************************
NAME : Translate
DESCRIPTION: Translates teh ray by the given point.
PARAMETER : point
RETURN : void
EXCEPTION : NONE.
*********************************************************************/
void CRay::Translate (CPoint3D point)
{
m_ptOrigin = m_ptOrigin + point;
m_ptDestination = m_ptDestination + point;
}