manolas
/
vcglib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Added matrix-vector multiplication

This commit is contained in:
Paolo Cignoni 2005-02-16 11:11:12 +00:00
parent 02d8bd6b38
commit 5d6d76694c
1 changed files with 21 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
vcg/math/matrix.h
View File

@ -372,7 +372,7 @@ namespace vcg
/*!
* Matrix multiplication: calculates the cross product.
* \param reference to the matrix to multiply by
* \result the matrix product
* \return the matrix product
*/
Matrix<TYPE> operator*(const Matrix<TYPE> &m)
{
@ -391,6 +391,23 @@ namespace vcg
return result;
};
/*!
* Matrix-vector multiplication.
* \param reference to the 3-dimensional vector to multiply by
* \return the resulting vector
*/
vcg::Point3<TYPE> operator*(const vcg::Point3<TYPE> &p)
{
assert(_columns==3 && _rows==3);
vcg::Point3<TYPE> result;
result[0] = _data[0]*p[0]+_data[1]*p[1]+_data[2]*p[2];
result[1] = _data[3]*p[0]+_data[4]*p[1]+_data[5]*p[2];
result[2] = _data[6]*p[0]+_data[7]*p[1]+_data[8]*p[2];
return result;
};
/*!
* Scalar sum.
* \param k
@ -536,6 +553,7 @@ namespace vcg
delete []temp;
};
/*!
* Print all matrix elements
*/