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Base: implement some convenience methods to get/set rows/columns of a matrix

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This commit is contained in:
wmayer
2022-01-27 00:24:44 +01:00
parent 3a4100d656
commit 12eb5dafb1
3 changed files with 238 additions and 21 deletions
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48
src/Base/Matrix.h
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@@ -96,6 +96,18 @@ public:
inline double* operator [] (unsigned short usNdx);
/// Index operator
inline const double* operator[] (unsigned short usNdx) const;
/// Get vector of row
inline Vector3d getRow(unsigned short usNdx) const;
/// Get vector of column
inline Vector3d getCol(unsigned short usNdx) const;
/// Get vector of trace
inline Vector3d trace() const;
/// Set row to vector
inline void setRow(unsigned short usNdx, const Vector3d&);
/// Set column to vector
inline void setCol(unsigned short usNdx, const Vector3d&);
/// Set trace to vector
inline void setTrace(const Vector3d&);
/// Compute the determinant of the matrix
double determinant() const;
/// Analyse the transformation
@@ -370,6 +382,42 @@ inline const double* Matrix4D::operator[] (unsigned short usNdx) const
return dMtrx4D[usNdx];
}
inline Vector3d Matrix4D::getRow(unsigned short usNdx) const
{
return Vector3d(dMtrx4D[usNdx][0], dMtrx4D[usNdx][1], dMtrx4D[usNdx][2]);
}
inline Vector3d Matrix4D::getCol(unsigned short usNdx) const
{
return Vector3d(dMtrx4D[0][usNdx], dMtrx4D[1][usNdx], dMtrx4D[2][usNdx]);
}
inline Vector3d Matrix4D::trace() const
{
return Vector3d(dMtrx4D[0][0], dMtrx4D[1][1], dMtrx4D[2][2]);
}
inline void Matrix4D::setRow(unsigned short usNdx, const Vector3d& v)
{
dMtrx4D[usNdx][0] = v.x;
dMtrx4D[usNdx][1] = v.y;
dMtrx4D[usNdx][2] = v.z;
}
inline void Matrix4D::setCol(unsigned short usNdx, const Vector3d& v)
{
dMtrx4D[0][usNdx] = v.x;
dMtrx4D[1][usNdx] = v.y;
dMtrx4D[2][usNdx] = v.z;
}
inline void Matrix4D::setTrace(const Vector3d& v)
{
dMtrx4D[0][0] = v.x;
dMtrx4D[1][1] = v.y;
dMtrx4D[2][2] = v.z;
}
} // namespace Base