diff options
Diffstat (limited to 'Eigen/src/Geometry/Transform.h')
| -rw-r--r-- | Eigen/src/Geometry/Transform.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Eigen/src/Geometry/Transform.h b/Eigen/src/Geometry/Transform.h index 75991aaed..3670767aa 100644 --- a/Eigen/src/Geometry/Transform.h +++ b/Eigen/src/Geometry/Transform.h @@ -97,6 +97,9 @@ template<int Mode> struct transform_make_affine; * - #AffineCompact: the transformation is stored as a (Dim)x(Dim+1) matrix. * - #Projective: the transformation is stored as a (Dim+1)^2 matrix * without any assumption. + * - #Isometry: same as #Affine with the additional assumption that + * the linear part represents a rotation. This assumption is exploited + * to speed up some functions such as inverse() and rotation(). * \tparam _Options has the same meaning as in class Matrix. It allows to specify DontAlign and/or RowMajor. * These Options are passed directly to the underlying matrix type. * @@ -252,11 +255,11 @@ protected: public: /** Default constructor without initialization of the meaningful coefficients. - * If Mode==Affine, then the last row is set to [0 ... 0 1] */ + * If Mode==Affine or Mode==Isometry, then the last row is set to [0 ... 0 1] */ EIGEN_DEVICE_FUNC inline Transform() { check_template_params(); - internal::transform_make_affine<(int(Mode)==Affine) ? Affine : AffineCompact>::run(m_matrix); + internal::transform_make_affine<(int(Mode)==Affine || int(Mode)==Isometry) ? Affine : AffineCompact>::run(m_matrix); } EIGEN_DEVICE_FUNC inline Transform(const Transform& other) |