assimp/include/assimp/vector3.inl

285 lines
12 KiB
C++

/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
---------------------------------------------------------------------------
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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*/
/** @file vector3.inl
* @brief Inline implementation of aiVector3t<TReal> operators
*/
#pragma once
#ifndef AI_VECTOR3D_INL_INC
#define AI_VECTOR3D_INL_INC
#ifdef __cplusplus
#include <assimp/vector3.h>
#include <cmath>
// ------------------------------------------------------------------------------------------------
/** Transformation of a vector by a 3x3 matrix */
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator * (const aiMatrix3x3t<TReal>& pMatrix, const aiVector3t<TReal>& pVector) {
aiVector3t<TReal> res;
res.x = pMatrix.a1 * pVector.x + pMatrix.a2 * pVector.y + pMatrix.a3 * pVector.z;
res.y = pMatrix.b1 * pVector.x + pMatrix.b2 * pVector.y + pMatrix.b3 * pVector.z;
res.z = pMatrix.c1 * pVector.x + pMatrix.c2 * pVector.y + pMatrix.c3 * pVector.z;
return res;
}
// ------------------------------------------------------------------------------------------------
/** Transformation of a vector by a 4x4 matrix */
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator * (const aiMatrix4x4t<TReal>& pMatrix, const aiVector3t<TReal>& pVector) {
aiVector3t<TReal> res;
res.x = pMatrix.a1 * pVector.x + pMatrix.a2 * pVector.y + pMatrix.a3 * pVector.z + pMatrix.a4;
res.y = pMatrix.b1 * pVector.x + pMatrix.b2 * pVector.y + pMatrix.b3 * pVector.z + pMatrix.b4;
res.z = pMatrix.c1 * pVector.x + pMatrix.c2 * pVector.y + pMatrix.c3 * pVector.z + pMatrix.c4;
return res;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
template <typename TOther>
aiVector3t<TReal>::operator aiVector3t<TOther> () const {
return aiVector3t<TOther>(static_cast<TOther>(x),static_cast<TOther>(y),static_cast<TOther>(z));
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE void aiVector3t<TReal>::Set( TReal pX, TReal pY, TReal pZ) {
x = pX;
y = pY;
z = pZ;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE TReal aiVector3t<TReal>::SquareLength() const {
return x*x + y*y + z*z;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE TReal aiVector3t<TReal>::Length() const {
return std::sqrt( SquareLength());
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
aiVector3t<TReal>& aiVector3t<TReal>::Normalize() {
const TReal l = Length();
if (l == 0) {
return *this;
}
*this /= Length();
return *this;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal>& aiVector3t<TReal>::NormalizeSafe() {
TReal len = Length();
if ( len > static_cast< TReal >( 0 ) ) {
*this /= len;
}
return *this;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator += (const aiVector3t<TReal>& o) {
x += o.x;
y += o.y;
z += o.z;
return *this;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator -= (const aiVector3t<TReal>& o) {
x -= o.x;
y -= o.y;
z -= o.z;
return *this;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator *= (TReal f) {
x *= f;
y *= f;
z *= f;
return *this;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator /= (TReal f) {
if ( f == static_cast<TReal>(0.0)) {
return *this;
}
const TReal invF = (TReal) 1.0 / f;
x *= invF;
y *= invF;
z *= invF;
return *this;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal>& aiVector3t<TReal>::operator *= (const aiMatrix3x3t<TReal>& mat){
return (*this = mat * (*this));
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal>& aiVector3t<TReal>::operator *= (const aiMatrix4x4t<TReal>& mat){
return (*this = mat * (*this));
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE TReal aiVector3t<TReal>::operator[](unsigned int i) const {
switch (i) {
case 0:
return x;
case 1:
return y;
case 2:
return z;
default:
break;
}
return x;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE TReal& aiVector3t<TReal>::operator[](unsigned int i) {
switch (i) {
case 0:
return x;
case 1:
return y;
case 2:
return z;
default:
break;
}
return x;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE bool aiVector3t<TReal>::operator== (const aiVector3t<TReal>& other) const {
return x == other.x && y == other.y && z == other.z;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE bool aiVector3t<TReal>::operator!= (const aiVector3t<TReal>& other) const {
return x != other.x || y != other.y || z != other.z;
}
// ---------------------------------------------------------------------------
template<typename TReal>
AI_FORCE_INLINE bool aiVector3t<TReal>::Equal(const aiVector3t<TReal>& other, TReal epsilon) const {
return
std::abs(x - other.x) <= epsilon &&
std::abs(y - other.y) <= epsilon &&
std::abs(z - other.z) <= epsilon;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE bool aiVector3t<TReal>::operator < (const aiVector3t<TReal>& other) const {
return x != other.x ? x < other.x : y != other.y ? y < other.y : z < other.z;
}
// ------------------------------------------------------------------------------------------------
template <typename TReal>
AI_FORCE_INLINE const aiVector3t<TReal> aiVector3t<TReal>::SymMul(const aiVector3t<TReal>& o) {
return aiVector3t<TReal>(x*o.x,y*o.y,z*o.z);
}
// ------------------------------------------------------------------------------------------------
// symmetric addition
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator + (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
return aiVector3t<TReal>( v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
}
// ------------------------------------------------------------------------------------------------
// symmetric subtraction
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator - (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
return aiVector3t<TReal>( v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
}
// ------------------------------------------------------------------------------------------------
// scalar product
template <typename TReal>
AI_FORCE_INLINE TReal operator * (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
}
// ------------------------------------------------------------------------------------------------
// scalar multiplication
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator * ( TReal f, const aiVector3t<TReal>& v) {
return aiVector3t<TReal>( f*v.x, f*v.y, f*v.z);
}
// ------------------------------------------------------------------------------------------------
// and the other way around
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator * ( const aiVector3t<TReal>& v, TReal f) {
return aiVector3t<TReal>( f*v.x, f*v.y, f*v.z);
}
// ------------------------------------------------------------------------------------------------
// scalar division
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator / ( const aiVector3t<TReal>& v, TReal f) {
return v * (1/f);
}
// ------------------------------------------------------------------------------------------------
// vector division
template <typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator / ( const aiVector3t<TReal>& v, const aiVector3t<TReal>& v2) {
return aiVector3t<TReal>(v.x / v2.x,v.y / v2.y,v.z / v2.z);
}
// ------------------------------------------------------------------------------------------------
// cross product
template<typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator ^ ( const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
return aiVector3t<TReal>( v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x);
}
// ------------------------------------------------------------------------------------------------
// vector negation
template<typename TReal>
AI_FORCE_INLINE aiVector3t<TReal> operator - ( const aiVector3t<TReal>& v) {
return aiVector3t<TReal>( -v.x, -v.y, -v.z);
}
// ------------------------------------------------------------------------------------------------
#endif // __cplusplus
#endif // AI_VECTOR3D_INL_INC