54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
/** @file Inline implementation of the 3x3 matrix operators */
|
|
#ifndef AI_MATRIX3x3_INL_INC
|
|
#define AI_MATRIX3x3_INL_INC
|
|
|
|
#include "aiMatrix3x3.h"
|
|
|
|
#ifdef __cplusplus
|
|
#include "aiMatrix4x4.h"
|
|
#include <algorithm>
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// Construction from a 4x4 matrix. The remaining parts of the matrix are ignored.
|
|
inline aiMatrix3x3::aiMatrix3x3( const aiMatrix4x4& pMatrix)
|
|
{
|
|
a1 = pMatrix.a1; a2 = pMatrix.a2; a3 = pMatrix.a3;
|
|
b1 = pMatrix.b1; b2 = pMatrix.b2; b3 = pMatrix.b3;
|
|
c1 = pMatrix.c1; c2 = pMatrix.c2; c3 = pMatrix.c3;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
inline aiMatrix3x3& aiMatrix3x3::operator *= (const aiMatrix3x3& m)
|
|
{
|
|
*this = aiMatrix3x3(
|
|
m.a1 * a1 + m.b1 * a2 + m.c1 * a3,
|
|
m.a2 * a1 + m.b2 * a2 + m.c2 * a3,
|
|
m.a3 * a1 + m.b3 * a2 + m.c3 * a3,
|
|
m.a1 * b1 + m.b1 * b2 + m.c1 * b3,
|
|
m.a2 * b1 + m.b2 * b2 + m.c2 * b3,
|
|
m.a3 * b1 + m.b3 * b2 + m.c3 * b3,
|
|
m.a1 * c1 + m.b1 * c2 + m.c1 * c3,
|
|
m.a2 * c1 + m.b2 * c2 + m.c2 * c3,
|
|
m.a3 * c1 + m.b3 * c2 + m.c3 * c3);
|
|
return *this;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
inline aiMatrix3x3 aiMatrix3x3::operator* (const aiMatrix3x3& m) const
|
|
{
|
|
aiMatrix3x3 temp( *this);
|
|
temp *= m;
|
|
return temp;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
inline aiMatrix3x3& aiMatrix3x3::Transpose()
|
|
{
|
|
std::swap( a2, b1);
|
|
std::swap( a3, c1);
|
|
std::swap( b3, c2);
|
|
}
|
|
|
|
|
|
#endif // __cplusplus
|
|
#endif // AI_MATRIX3x3_INL_INC
|