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From Vivek Rajan, MatrixDecomposition implementaion, adapted by Robert Osfield

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to be part of osg::Matrixf and osg::Matrixd classes.
This commit is contained in:
Robert Osfield
2007-02-10 18:01:37 +00:00
parent 760cfeaadb
commit f1a82f35b2
5 changed files with 716 additions and 5 deletions
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20
include/osg/Matrixd
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@@ -91,8 +91,6 @@ class OSG_EXPORT Matrixd
value_type * ptr() { return (value_type*)_mat; }
const value_type * ptr() const { return (const value_type *)_mat; }
void makeIdentity();
bool isIdentity() const
{
return _mat[0][0]==1.0 && _mat[0][1]==0.0 && _mat[0][2]==0.0 && _mat[0][3]==0.0 &&
@@ -100,6 +98,8 @@ class OSG_EXPORT Matrixd
_mat[2][0]==0.0 && _mat[2][1]==0.0 && _mat[2][2]==1.0 && _mat[2][3]==0.0 &&
_mat[3][0]==0.0 && _mat[3][1]==0.0 && _mat[3][2]==0.0 && _mat[3][3]==1.0;
}
void makeIdentity();
void makeScale( const Vec3f& );
void makeScale( const Vec3d& );
@@ -122,8 +122,20 @@ class OSG_EXPORT Matrixd
value_type angle2, const Vec3d& axis2,
value_type angle3, const Vec3d& axis3);
/** decompose the matrix into translation, rotation, scale and scale orietation.*/
void decompose( osg::Vec3f& translation,
osg::Quat& rotation,
osg::Vec3f& scale,
osg::Quat& so ) const;
/** decompose the matrix into translation, rotation, scale and scale orietation.*/
void decompose( osg::Vec3d& translation,
osg::Quat& rotation,
osg::Vec3d& scale,
osg::Quat& so ) const;
/** Set to an orthographic projection.
* See glOrtho for further details.
*/