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File indexing completed on 2024-04-06 12:31:26
0001 #ifndef JacobianLocalToCartesian_H 0002 #define JacobianLocalToCartesian_H 0003 0004 #include "DataFormats/Math/interface/AlgebraicROOTObjects.h" 0005 0006 class Surface; 0007 class LocalTrajectoryParameters; 0008 0009 /** Class which calculates the Jacobian matrix of the transformation 0010 * from the local to the Caresian frame. The Jacobian is calculated 0011 * during construction and thereafter cached, enabling reuse of the same 0012 * Jacobian without calculating it again. 0013 */ 0014 0015 class JacobianLocalToCartesian { 0016 public: 0017 /** Constructor from local trajectory parameters and surface defining the local frame. 0018 * NB!! No default constructor exists! 0019 */ 0020 0021 JacobianLocalToCartesian(const Surface& surface, const LocalTrajectoryParameters& localParameters); 0022 0023 /** Access to Jacobian. 0024 */ 0025 0026 const AlgebraicMatrix65& jacobian() const { return theJacobian; } 0027 0028 private: 0029 AlgebraicMatrix65 theJacobian; 0030 }; 0031 0032 #endif //JacobianLocalToCartesian_H
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