miniassimp
diff include/miniassimp/vector3.h @ 0:879c81d94345
initial commit
author | John Tsiombikas <nuclear@member.fsf.org> |
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date | Mon, 28 Jan 2019 18:19:26 +0200 |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/include/miniassimp/vector3.h Mon Jan 28 18:19:26 2019 +0200 1.3 @@ -0,0 +1,145 @@ 1.4 +/* 1.5 +--------------------------------------------------------------------------- 1.6 +Open Asset Import Library (assimp) 1.7 +--------------------------------------------------------------------------- 1.8 + 1.9 +Copyright (c) 2006-2018, assimp team 1.10 + 1.11 + 1.12 + 1.13 +All rights reserved. 1.14 + 1.15 +Redistribution and use of this software in source and binary forms, 1.16 +with or without modification, are permitted provided that the following 1.17 +conditions are met: 1.18 + 1.19 +* Redistributions of source code must retain the above 1.20 + copyright notice, this list of conditions and the 1.21 + following disclaimer. 1.22 + 1.23 +* Redistributions in binary form must reproduce the above 1.24 + copyright notice, this list of conditions and the 1.25 + following disclaimer in the documentation and/or other 1.26 + materials provided with the distribution. 1.27 + 1.28 +* Neither the name of the assimp team, nor the names of its 1.29 + contributors may be used to endorse or promote products 1.30 + derived from this software without specific prior 1.31 + written permission of the assimp team. 1.32 + 1.33 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1.34 +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1.35 +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1.36 +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1.37 +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 1.38 +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 1.39 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 1.40 +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 1.41 +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 1.42 +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 1.43 +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 1.44 +--------------------------------------------------------------------------- 1.45 +*/ 1.46 +/** @file vector3.h 1.47 + * @brief 3D vector structure, including operators when compiling in C++ 1.48 + */ 1.49 +#pragma once 1.50 +#ifndef AI_VECTOR3D_H_INC 1.51 +#define AI_VECTOR3D_H_INC 1.52 + 1.53 +#ifdef __cplusplus 1.54 +# include <cmath> 1.55 +#else 1.56 +# include <math.h> 1.57 +#endif 1.58 + 1.59 +#include "defs.h" 1.60 + 1.61 +#ifdef __cplusplus 1.62 + 1.63 +template<typename TReal> class aiMatrix3x3t; 1.64 +template<typename TReal> class aiMatrix4x4t; 1.65 + 1.66 +// --------------------------------------------------------------------------- 1.67 +/** Represents a three-dimensional vector. */ 1.68 +template <typename TReal> 1.69 +class aiVector3t 1.70 +{ 1.71 +public: 1.72 + aiVector3t() AI_NO_EXCEPT : x(), y(), z() {} 1.73 + aiVector3t(TReal _x, TReal _y, TReal _z) : x(_x), y(_y), z(_z) {} 1.74 + explicit aiVector3t (TReal _xyz ) : x(_xyz), y(_xyz), z(_xyz) {} 1.75 + 1.76 +public: 1.77 + 1.78 + // combined operators 1.79 + const aiVector3t& operator += (const aiVector3t& o); 1.80 + const aiVector3t& operator -= (const aiVector3t& o); 1.81 + const aiVector3t& operator *= (TReal f); 1.82 + const aiVector3t& operator /= (TReal f); 1.83 + 1.84 + // transform vector by matrix 1.85 + aiVector3t& operator *= (const aiMatrix3x3t<TReal>& mat); 1.86 + aiVector3t& operator *= (const aiMatrix4x4t<TReal>& mat); 1.87 + 1.88 + // access a single element 1.89 + TReal operator[](unsigned int i) const; 1.90 + TReal& operator[](unsigned int i); 1.91 + 1.92 + // comparison 1.93 + bool operator== (const aiVector3t& other) const; 1.94 + bool operator!= (const aiVector3t& other) const; 1.95 + bool operator < (const aiVector3t& other) const; 1.96 + 1.97 + bool Equal(const aiVector3t& other, TReal epsilon = 1e-6) const; 1.98 + 1.99 + template <typename TOther> 1.100 + operator aiVector3t<TOther> () const; 1.101 + 1.102 +public: 1.103 + /** @brief Set the components of a vector 1.104 + * @param pX X component 1.105 + * @param pY Y component 1.106 + * @param pZ Z component */ 1.107 + void Set( TReal pX, TReal pY, TReal pZ); 1.108 + 1.109 + /** @brief Get the squared length of the vector 1.110 + * @return Square length */ 1.111 + TReal SquareLength() const; 1.112 + 1.113 + /** @brief Get the length of the vector 1.114 + * @return length */ 1.115 + TReal Length() const; 1.116 + 1.117 + 1.118 + /** @brief Normalize the vector */ 1.119 + aiVector3t& Normalize(); 1.120 + 1.121 + /** @brief Normalize the vector with extra check for zero vectors */ 1.122 + aiVector3t& NormalizeSafe(); 1.123 + 1.124 + /** @brief Componentwise multiplication of two vectors 1.125 + * 1.126 + * Note that vec*vec yields the dot product. 1.127 + * @param o Second factor */ 1.128 + const aiVector3t SymMul(const aiVector3t& o); 1.129 + 1.130 + TReal x, y, z; 1.131 +}; 1.132 + 1.133 + 1.134 +typedef aiVector3t<ai_real> aiVector3D; 1.135 + 1.136 +#else 1.137 + 1.138 +struct aiVector3D { 1.139 + ai_real x, y, z; 1.140 +}; 1.141 + 1.142 +#endif // __cplusplus 1.143 + 1.144 +#ifdef __cplusplus 1.145 + 1.146 +#endif // __cplusplus 1.147 + 1.148 +#endif // AI_VECTOR3D_H_INC