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
|
// File Graphic3d_Vector.cxx
// Created Fevrier 1992
// Author NW,JPB,CAL
// Modified 27/12/98 : FMN ; PERF: OPTIMISATION LOADER (LOPTIM)
//-Copyright MatraDatavision 1991,1992
//-Version
//-Design Declaration des variables specifiques aux vecteurs
//-Warning Un vecteur est defini par ses composantes ou par
// deux points
// Il peut etre normalise
//-References
//-Language C++ 2.0
//-Declarations
// for the class
#include <Graphic3d_Vector.ixx>
#include <Standard_Boolean.hxx>
//-Aliases
//-Global data definitions
#define Graphic3d_Vector_MyEpsilon 0.000001
// -- les coordonnees du vecteur
// MyX : Standard_ShortReal;
// MyY : Standard_ShortReal;
// MyZ : Standard_ShortReal;
// -- la norme du vecteur
// MyNorme : Standard_ShortReal;
//-Constructors
Graphic3d_Vector::Graphic3d_Vector ():
MyX (Standard_ShortReal (1.0)),
MyY (Standard_ShortReal (1.0)),
MyZ (Standard_ShortReal (1.0)),
MyNorme (Standard_ShortReal (1.0)) {
}
Graphic3d_Vector::Graphic3d_Vector (const Standard_Real AX, const Standard_Real AY, const Standard_Real AZ):
MyX (Standard_ShortReal (AX)),
MyY (Standard_ShortReal (AY)),
MyZ (Standard_ShortReal (AZ)),
MyNorme (Standard_ShortReal (Graphic3d_Vector::NormeOf (AX, AY, AZ))) {
}
Graphic3d_Vector::Graphic3d_Vector (const Graphic3d_Vertex& APoint1, const Graphic3d_Vertex& APoint2) {
Standard_Real X1, Y1, Z1;
Standard_Real X2, Y2, Z2;
APoint1.Coord (X1, Y1, Z1);
APoint2.Coord (X2, Y2, Z2);
MyX = Standard_ShortReal (X2 - X1);
MyY = Standard_ShortReal (Y2 - Y1);
MyZ = Standard_ShortReal (Z2 - Z1);
MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (X2 - X1, Y2 - Y1, Z2 - Z1));
}
//-Destructors
//-Methods, in order
void Graphic3d_Vector::Coord (Standard_Real& AX, Standard_Real& AY, Standard_Real& AZ) const {
AX = Standard_Real (MyX);
AY = Standard_Real (MyY);
AZ = Standard_Real (MyZ);
}
Standard_Real Graphic3d_Vector::X () const {
return Standard_Real (MyX);
}
Standard_Real Graphic3d_Vector::Y () const {
return Standard_Real (MyY);
}
Standard_Real Graphic3d_Vector::Z () const {
return Standard_Real (MyZ);
}
void Graphic3d_Vector::Normalize () {
if (Abs (MyNorme) <= RealEpsilon ())
Graphic3d_VectorError::Raise ("The norm is null");
if (!IsNormalized()) // CQO CTS40181
{
MyX = MyX / MyNorme;
MyY = MyY / MyNorme;
MyZ = MyZ / MyNorme;
}
MyNorme = Standard_ShortReal (1.0);
}
void Graphic3d_Vector::SetCoord (const Standard_Real Xnew, const Standard_Real Ynew, const Standard_Real Znew) {
MyX = Standard_ShortReal (Xnew);
MyY = Standard_ShortReal (Ynew);
MyZ = Standard_ShortReal (Znew);
MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
}
void Graphic3d_Vector::SetXCoord (const Standard_Real Xnew) {
MyX = Standard_ShortReal (Xnew);
MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
}
void Graphic3d_Vector::SetYCoord (const Standard_Real Ynew) {
MyY = Standard_ShortReal (Ynew);
MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
}
void Graphic3d_Vector::SetZCoord (const Standard_Real Znew) {
MyZ = Standard_ShortReal (Znew);
MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
}
Standard_Boolean Graphic3d_Vector::LengthZero () const {
return (Abs (Standard_Real (MyNorme)) <= RealEpsilon ());
}
Standard_Boolean Graphic3d_Vector::IsNormalized () const {
return (Abs (Standard_Real (MyNorme) - 1.0) <=
Graphic3d_Vector_MyEpsilon);
}
Standard_Boolean Graphic3d_Vector::IsParallel (const Graphic3d_Vector& AV1, const Graphic3d_Vector& AV2) {
Standard_Real Result;
Result = (AV1.Y () * AV2.Z () - AV1.Z () * AV2.Y ())
- (AV1.X () * AV2.Z () - AV1.Z () * AV2.X ())
- (AV1.X () * AV2.Y () - AV1.Y () * AV2.X ());
return (Abs (Result) <= Graphic3d_Vector_MyEpsilon);
}
Standard_Real Graphic3d_Vector::NormeOf (const Standard_Real AX, const Standard_Real AY, const Standard_Real AZ) {
return (Sqrt (AX*AX+AY*AY+AZ*AZ));
}
Standard_Real Graphic3d_Vector::NormeOf (const Graphic3d_Vector& AVector) {
Standard_Real X, Y, Z;
AVector.Coord(X, Y, Z);
return (Graphic3d_Vector::NormeOf (X, Y, Z));
}
|
