147 lines
4.3 KiB
C++
147 lines
4.3 KiB
C++
/*
|
|
---------------------------------------------------------------------------
|
|
Open Asset Import Library (assimp)
|
|
---------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2019, assimp team
|
|
|
|
|
|
|
|
All rights reserved.
|
|
|
|
Redistribution and use of this software in source and binary forms,
|
|
with or without modification, are permitted provided that the following
|
|
conditions are met:
|
|
|
|
* Redistributions of source code must retain the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
* Neither the name of the assimp team, nor the names of its
|
|
contributors may be used to endorse or promote products
|
|
derived from this software without specific prior
|
|
written permission of the assimp team.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
---------------------------------------------------------------------------
|
|
*/
|
|
/** @file vector3.h
|
|
* @brief 3D vector structure, including operators when compiling in C++
|
|
*/
|
|
#pragma once
|
|
#ifndef AI_VECTOR3D_H_INC
|
|
#define AI_VECTOR3D_H_INC
|
|
|
|
#ifdef __cplusplus
|
|
# include <cmath>
|
|
#else
|
|
# include <math.h>
|
|
#endif
|
|
|
|
#include "defs.h"
|
|
|
|
#ifdef __cplusplus
|
|
|
|
template<typename TReal> class aiMatrix3x3t;
|
|
template<typename TReal> class aiMatrix4x4t;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** Represents a three-dimensional vector. */
|
|
template <typename TReal>
|
|
class aiVector3t
|
|
{
|
|
public:
|
|
aiVector3t() AI_NO_EXCEPT : x(), y(), z() {}
|
|
aiVector3t(TReal _x, TReal _y, TReal _z) : x(_x), y(_y), z(_z) {}
|
|
explicit aiVector3t (TReal _xyz ) : x(_xyz), y(_xyz), z(_xyz) {}
|
|
aiVector3t( const aiVector3t& o ) = default;
|
|
|
|
public:
|
|
|
|
// combined operators
|
|
const aiVector3t& operator += (const aiVector3t& o);
|
|
const aiVector3t& operator -= (const aiVector3t& o);
|
|
const aiVector3t& operator *= (TReal f);
|
|
const aiVector3t& operator /= (TReal f);
|
|
|
|
// transform vector by matrix
|
|
aiVector3t& operator *= (const aiMatrix3x3t<TReal>& mat);
|
|
aiVector3t& operator *= (const aiMatrix4x4t<TReal>& mat);
|
|
|
|
// access a single element
|
|
TReal operator[](unsigned int i) const;
|
|
TReal& operator[](unsigned int i);
|
|
|
|
// comparison
|
|
bool operator== (const aiVector3t& other) const;
|
|
bool operator!= (const aiVector3t& other) const;
|
|
bool operator < (const aiVector3t& other) const;
|
|
|
|
bool Equal(const aiVector3t& other, TReal epsilon = 1e-6) const;
|
|
|
|
template <typename TOther>
|
|
operator aiVector3t<TOther> () const;
|
|
|
|
public:
|
|
/** @brief Set the components of a vector
|
|
* @param pX X component
|
|
* @param pY Y component
|
|
* @param pZ Z component */
|
|
void Set( TReal pX, TReal pY, TReal pZ);
|
|
|
|
/** @brief Get the squared length of the vector
|
|
* @return Square length */
|
|
TReal SquareLength() const;
|
|
|
|
/** @brief Get the length of the vector
|
|
* @return length */
|
|
TReal Length() const;
|
|
|
|
|
|
/** @brief Normalize the vector */
|
|
aiVector3t& Normalize();
|
|
|
|
/** @brief Normalize the vector with extra check for zero vectors */
|
|
aiVector3t& NormalizeSafe();
|
|
|
|
/** @brief Componentwise multiplication of two vectors
|
|
*
|
|
* Note that vec*vec yields the dot product.
|
|
* @param o Second factor */
|
|
const aiVector3t SymMul(const aiVector3t& o);
|
|
|
|
TReal x, y, z;
|
|
};
|
|
|
|
|
|
typedef aiVector3t<ai_real> aiVector3D;
|
|
|
|
#else
|
|
|
|
struct aiVector3D {
|
|
ai_real x, y, z;
|
|
};
|
|
|
|
#endif // __cplusplus
|
|
|
|
#ifdef __cplusplus
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif // AI_VECTOR3D_H_INC
|