xlifepp::subdivision – Functions – R

rotationMatrix

Matrix<real_t> xlifepp::subdivision::rotationMatrix(real_t theta, dimen_t axis)

Apply rotations defined in rots and the translation of vector U to each point of Pt.

rotInPlane

Point xlifepp::subdivision::rotInPlane(const Point &P, const real_t ct, const real_t st, const Point &A, const Vect &U)

Rotation of the point P by the angle theta (given by their cosine ct and sine st) around the axis defined by the point A and the unitary vector U in the plane defined by the point P and the normal unitary vector U.

rotation of the current point around the axis defined by the point A and the unitary vector U, in the plane orthogonal to U

rotOnSph

Point xlifepp::subdivision::rotOnSph(const Point &P1, const Point &P2, const int k, const int n)

Rotation of P1 by the angle alpha = k/n * ang(P1,O,P2) in the plane (P1,O,P2).

rotation of P1 by the angle k/n * ang(P1, O, P2)

P1 and P2 are assumed to be lying onto the sphere, centered at the origin 0.