eryn/charles
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement more robust * and / for Matrix

Browse source
This commit is contained in:
Eryn Wells 2014-08-08 23:05:24 -07:00
parent be15d553f1
commit 9b076f1533
1 changed files with 40 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

49
src/basics/matrix.hh
View file

@ -48,6 +48,10 @@ struct Matrix
/** Scalar multiplication */
Matrix<N,M> operator*(const Double& rhs) const;
Matrix<N,M>& operator*=(const Double& rhs);
Matrix<N,M> operator/(const Double& rhs) const;
Matrix<N,M>& operator/=(const Double& rhs);
/** Matrix multiplication */
template<UInt P>
@ -62,6 +66,12 @@ protected:
};
/** Scalar multiplication, scalar factor on the left. */
template<UInt N, UInt M>
Matrix<N,M> operator*(const Double& lhs, const Matrix<N,M>& rhs);
/** A standard 4x4 matrix. */
typedef Matrix<4> Matrix4;
@ -71,11 +81,7 @@ typedef Matrix<4> Matrix4;
*/
static Matrix4 TranslationMatrix(const Double& x, const Double& y, const Double& z);
/** Scalar multiplication, scalar factor on the left. */
template<UInt N, UInt M>
Matrix<N,M> operator*(const Double& lhs, const Matrix<N,M>& rhs);
#pragma mark Static Methods
/*
* charles::basics::Matrix<>::Zero --
@ -106,6 +112,7 @@ Matrix<N,M>::Identity()
return m;
}
#pragma mark Instance Methods
/*
* charles::basics::Matrix<>::Matrix --
@ -197,11 +204,35 @@ Matrix<N,M>
Matrix<N,M>::operator*(const Double& rhs)
const
{
Matrix<N,M> result;
for (int i = 0; i < N*M; i++) {
result.mData = mData[i] * rhs;
return Matrix<N,M>(*this) *= rhs;
}
template<UInt N, UInt M>
Matrix<N,M>&
Matrix<N,M>::operator*=(const Double& rhs)
{
for (size_t i = 0; i < N*M; i++) {
mData[i] *= rhs;
}
return result;
return *this;
}
template<UInt N, UInt M>
Matrix<N,M>
Matrix<N,M>::operator/(const Double& rhs)
const
{
return Matrix<N,M>(*this) /= rhs;
}
template<UInt N, UInt M>
Matrix<N,M>&
Matrix<N,M>::operator/=(const Double& rhs)
{
return *this *= (1.0 / rhs);
}