143 lines
4.8 KiB
C
143 lines
4.8 KiB
C
/*
|
|
---------------------------------------------------------------------------
|
|
Open Asset Import Library (ASSIMP)
|
|
---------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2008, ASSIMP Development 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 Development 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 3D vector structure, including operators when compiling in C++ */
|
|
#ifndef AI_VECTOR3D_H_INC
|
|
#define AI_VECTOR3D_H_INC
|
|
|
|
#include <math.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** Represents a three-dimensional vector. */
|
|
struct aiVector3D
|
|
{
|
|
#ifdef __cplusplus
|
|
aiVector3D () : x(0.0f), y(0.0f), z(0.0f) {}
|
|
aiVector3D (float _x, float _y, float _z) : x(_x), y(_y), z(_z) {}
|
|
aiVector3D (const aiVector3D& o) : x(o.x), y(o.y), z(o.z) {}
|
|
|
|
void Set( float pX, float pY, float pZ) { x = pX; y = pY; z = pZ; }
|
|
float SquareLength() const { return x*x + y*y + z*z; }
|
|
float Length() const { return sqrt( SquareLength()); }
|
|
aiVector3D& Normalize() { *this /= Length(); return *this; }
|
|
const aiVector3D& operator += (const aiVector3D& o) { x += o.x; y += o.y; z += o.z; return *this; }
|
|
const aiVector3D& operator -= (const aiVector3D& o) { x -= o.x; y -= o.y; z -= o.z; return *this; }
|
|
const aiVector3D& operator *= (float f) { x *= f; y *= f; z *= f; return *this; }
|
|
const aiVector3D& operator /= (float f) { x /= f; y /= f; z /= f; return *this; }
|
|
|
|
inline float operator[](unsigned int i) const {return *(&x + i);}
|
|
inline float& operator[](unsigned int i) {return *(&x + i);}
|
|
|
|
inline bool operator== (const aiVector3D& other) const
|
|
{return x == other.x && y == other.y && z == other.z;}
|
|
|
|
inline bool operator!= (const aiVector3D& other) const
|
|
{return x != other.x || y != other.y || z != other.z;}
|
|
|
|
#endif // __cplusplus
|
|
|
|
float x, y, z;
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
} // end extern "C"
|
|
|
|
// symmetric addition
|
|
inline aiVector3D operator + (const aiVector3D& v1, const aiVector3D& v2)
|
|
{
|
|
return aiVector3D( v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
|
|
}
|
|
|
|
// symmetric subtraction
|
|
inline aiVector3D operator - (const aiVector3D& v1, const aiVector3D& v2)
|
|
{
|
|
return aiVector3D( v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
|
|
}
|
|
|
|
// scalar product
|
|
inline float operator * (const aiVector3D& v1, const aiVector3D& v2)
|
|
{
|
|
return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
|
|
}
|
|
|
|
// scalar multiplication
|
|
inline aiVector3D operator * ( float f, const aiVector3D& v)
|
|
{
|
|
return aiVector3D( f*v.x, f*v.y, f*v.z);
|
|
}
|
|
|
|
// and the other way around
|
|
inline aiVector3D operator * ( const aiVector3D& v, float f)
|
|
{
|
|
return aiVector3D( f*v.x, f*v.y, f*v.z);
|
|
}
|
|
|
|
// scalar division
|
|
inline aiVector3D operator / ( const aiVector3D& v, float f)
|
|
{
|
|
|
|
return v * (1/f);
|
|
}
|
|
|
|
// vector division
|
|
inline aiVector3D operator / ( const aiVector3D& v, const aiVector3D& v2)
|
|
{
|
|
return aiVector3D(v.x / v2.x,v.y / v2.y,v.z / v2.z);
|
|
}
|
|
|
|
// cross product
|
|
inline aiVector3D operator ^ ( const aiVector3D& v1, const aiVector3D& v2)
|
|
{
|
|
return aiVector3D( 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 inversion
|
|
inline aiVector3D operator - ( const aiVector3D& v)
|
|
{
|
|
return aiVector3D( -v.x, -v.y, -v.z);
|
|
}
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif // AI_VECTOR3D_H_INC
|