miniassimp

diff include/miniassimp/vector3.h @ 0:879c81d94345

initial commit
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 28 Jan 2019 18:19:26 +0200
parents
children
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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