FEDEASLab

Geometry > Rot2q

Rot2q

Purpose

convert normalized rotation vector to quaternion representation

Synopsis

q = Rot2q (theta)

Description

ROTQ convert normalized rotation vector to quaternion representation
  Q = ROT2Q (THETA)
  the function converts the normalized rotation vector THETA to the
  normalized quaternion representation Q

Cross-Reference Information

This function calls:

This function is called by:
  • Coro3dKinematics determine deformations and kinematic transformation matrices
  • DefGeom_3dFrm determines current length and corotational triad of 2-node, 3d frame element
  • GeomTran_QuadPlate kinematic matrices and local displacements for a quadrilateral plate element
  • GeomTran_TriPlate kinematic matrices and local displacements for a triangular plate element
  • Large3du2ul_Quad determine the local displacements of a triangular element
  • Large3du2ul_Tri determine the local displacements of a triangular element
  • Large3du2v_Frm determine 3d frame element deformations from end displacements
  • kg_3dFrm geometric stiffness matrix for 2-node 3d frame element different options
  • kg_QuadPlate geometric stiffness matrix for quadrilateral plate element for different options
  • kg_TriPlate geometric stiffness matrix for triangular plate element for different options