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Adding support for matrix4x4 construction from position, rotation and scaling parameters

pull/261/head
Léo Terziman 2013-09-23 11:23:53 +02:00
parent 5e603d9ed8
commit 6b471317d2
2 changed files with 63 additions and 27 deletions
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8
include/assimp/matrix4x4.h
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@ -79,6 +79,14 @@ public:
/** construction from 3x3 matrix, remaining elements are set to identity */
explicit aiMatrix4x4t( const aiMatrix3x3t<TReal>& m);
/** construction from position, rotation and scaling components
* @param scaling The scaling for the x,y,z axes
* @param rotation The rotation as a hamilton quaternion
* @param position The position for the x,y,z axes
*/
aiMatrix4x4t(aiVector3t<TReal>& scaling, aiQuaterniont<TReal>& rotation,
aiVector3t<TReal>& position);
public:
// array access operators

28
include/assimp/matrix4x4.inl
View File

@ -102,6 +102,34 @@ inline aiMatrix4x4t<TReal>::aiMatrix4x4t (const aiMatrix3x3t<TReal>& m)
d1 = static_cast<TReal>(0.0); d2 = static_cast<TReal>(0.0); d3 = static_cast<TReal>(0.0); d4 = static_cast<TReal>(1.0);
}
// ----------------------------------------------------------------------------------------
template <typename TReal>
inline aiMatrix4x4t<TReal>::aiMatrix4x4t (aiVector3t<TReal>& scaling, aiQuaterniont<TReal>& rotation, aiVector3t<TReal>& position)
{
// build a 3x3 rotation matrix
aiMatrix3x3t<TReal> m = rotation.GetMatrix();
a1 = m.a1 * scaling.x;
a2 = m.a2 * scaling.x;
a3 = m.a3 * scaling.x;
a4 = position.x;
b1 = m.b1 * scaling.y;
b2 = m.b2 * scaling.y;
b3 = m.b3 * scaling.y;
b4 = position.y;
c1 = m.c1 * scaling.z;
c2 = m.c2 * scaling.z;
c3 = m.c3 * scaling.z;
c4= position.z;
d1 = static_cast<TReal>(0.0);
d2 = static_cast<TReal>(0.0);
d3 = static_cast<TReal>(0.0);
d4 = static_cast<TReal>(1.0);
}
// ----------------------------------------------------------------------------------------
template <typename TReal>
inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::operator *= (const aiMatrix4x4t<TReal>& m)