Path: AerospaceUtils/Coord
% Finds a quaternion with u1 aligned with u1ECI and u2 close to u2ECI. This is useful for when you need to point a thruster along an acceleration vector and a sensor near nadir. Type QFrom2U for a demo. It takes two vectors, [0;1;0] and [0;0;1] and aligns them with ECI [1;0;0] and [0;1;0]. This is a case when it will be exact. -------------------------------------------------------------------------- Form: q = QFrom2U( u1ECI, u2ECO, u1, u2 ) -------------------------------------------------------------------------- ------ Inputs ------ u1ECI (3,1) Vector that u1S must be aligned with u2ECI (3,1) Vector that should be close to u2 u1 (3,1) Vector in the body frame u2 (3,1) Second vector in the body frame ------- Outputs ------- qECIToBody (4,1) Quaternion --------------------------------------------------------------------------
AerospaceUtils: Coord/QAlign AerospaceUtils: Coord/QRotateToAlign Common: CommonData/SwooshWatermark Common: General/CellToMat Common: General/MatToCell Common: General/Watermark Common: Graphics/Coordinates Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Common: Quaternion/QForm Common: Quaternion/QMult Common: Quaternion/QPose Common: Quaternion/QTForm Common: Quaternion/U2Q Math: Geometry/Perpendicular Math: Linear/Cross Math: Linear/Dot Math: Linear/DupVect Math: Linear/Unit
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