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author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 28 Jan 2019 18:19:26 +0200
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1 /*
2 ---------------------------------------------------------------------------
3 Open Asset Import Library (assimp)
4 ---------------------------------------------------------------------------
5
6 Copyright (c) 2006-2018, assimp team
7
8
9
10 All rights reserved.
11
12 Redistribution and use of this software in source and binary forms,
13 with or without modification, are permitted provided that the following
14 conditions are met:
15
16 * Redistributions of source code must retain the above
17 copyright notice, this list of conditions and the
18 following disclaimer.
19
20 * Redistributions in binary form must reproduce the above
21 copyright notice, this list of conditions and the
22 following disclaimer in the documentation and/or other
23 materials provided with the distribution.
24
25 * Neither the name of the assimp team, nor the names of its
26 contributors may be used to endorse or promote products
27 derived from this software without specific prior
28 written permission of the assimp team.
29
30 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
31 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
32 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
33 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
34 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
36 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
37 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
38 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
39 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
40 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 ---------------------------------------------------------------------------
42 */
43 /** @file vector2.h
44 * @brief 2D vector structure, including operators when compiling in C++
45 */
46 #pragma once
47 #ifndef AI_VECTOR2D_H_INC
48 #define AI_VECTOR2D_H_INC
49
50 #ifdef __cplusplus
51 # include <cmath>
52 #else
53 # include <math.h>
54 #endif
55
56 #include "defs.h"
57
58 // ----------------------------------------------------------------------------------
59 /** Represents a two-dimensional vector.
60 */
61
62 #ifdef __cplusplus
63 template <typename TReal>
64 class aiVector2t {
65 public:
66 aiVector2t () : x(), y() {}
67 aiVector2t (TReal _x, TReal _y) : x(_x), y(_y) {}
68 explicit aiVector2t (TReal _xyz) : x(_xyz), y(_xyz) {}
69
70 void Set( TReal pX, TReal pY);
71 TReal SquareLength() const ;
72 TReal Length() const ;
73 aiVector2t& Normalize();
74
75 const aiVector2t& operator += (const aiVector2t& o);
76 const aiVector2t& operator -= (const aiVector2t& o);
77 const aiVector2t& operator *= (TReal f);
78 const aiVector2t& operator /= (TReal f);
79
80 TReal operator[](unsigned int i) const;
81
82 bool operator== (const aiVector2t& other) const;
83 bool operator!= (const aiVector2t& other) const;
84
85 bool Equal(const aiVector2t& other, TReal epsilon = 1e-6) const;
86
87 aiVector2t& operator= (TReal f);
88 const aiVector2t SymMul(const aiVector2t& o);
89
90 template <typename TOther>
91 operator aiVector2t<TOther> () const;
92
93 TReal x, y;
94 };
95
96 typedef aiVector2t<ai_real> aiVector2D;
97
98 #else
99
100 struct aiVector2D {
101 ai_real x, y;
102 };
103
104 #endif // __cplusplus
105
106 #endif // AI_VECTOR2D_H_INC