blob: bb9dd9e4f79fb48e774b477f668cf0900373ac2f (
plain)
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
|
/**
* $Id$
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#ifndef MT_PLANE3
#define MT_PLANE3
#include "MT_Tuple4.h"
#include "MT_Point3.h"
/**
* A simple 3d plane class.
*
* This class represents a plane in 3d. The internal parameterization used
* is n.x + d =0 where n is a unit vector and d is a scalar.
*
* It inherits data from MT_Tuple4 please see this class for low level
* access to the internal representation.
*
*/
class MT_Plane3 : public MT_Tuple4
{
public :
/**
* Constructor from 3 points
*/
MT_Plane3(
const MT_Vector3 &a,
const MT_Vector3 &b,
const MT_Vector3 &c
);
/**
* Construction from vector and a point.
*/
MT_Plane3(
const MT_Vector3 &n,
const MT_Vector3 &p
);
/**
* Default constructor
*/
MT_Plane3(
);
/**
* Default constructor
*/
MT_Plane3(
const MT_Plane3 & p
):
MT_Tuple4(p)
{
}
/**
* Return plane normal
*/
MT_Vector3
Normal(
) const;
/**
* Return plane scalar i.e the d from n.x + d = 0
*/
MT_Scalar
Scalar(
) const ;
/**
* Invert the plane - just swaps direction of normal.
*/
void
Invert(
);
/**
* Assignment operator
*/
MT_Plane3 &
operator = (
const MT_Plane3 & rhs
);
/**
* Return the signed perpendicular distance from a point to the plane
*/
MT_Scalar
signedDistance(
const MT_Vector3 &
) const;
};
#ifdef GEN_INLINED
#include "MT_Plane3.inl"
#endif
#endif
|
