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File indexing completed on 2025-02-21 09:58:02
0001 //========================================================================== 0002 // AIDA Detector description implementation 0003 //-------------------------------------------------------------------------- 0004 // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN) 0005 // All rights reserved. 0006 // 0007 // For the licensing terms see $DD4hepINSTALL/LICENSE. 0008 // For the list of contributors see $DD4hepINSTALL/doc/CREDITS. 0009 // 0010 // Author : M.Frank 0011 // 0012 //========================================================================== 0013 #ifndef DD4HEP_MATRIXHELPERS_H 0014 #define DD4HEP_MATRIXHELPERS_H 0015 0016 // Framework include files 0017 #include <DD4hep/Objects.h> 0018 0019 // Forward declarations 0020 class TGeoTranslation; 0021 class TGeoRotation; 0022 class TGeoHMatrix; 0023 class TGeoMatrix; 0024 0025 /// Namespace for the AIDA detector description toolkit 0026 namespace dd4hep { 0027 0028 /// Namespace for the AIDA detector description implementation details 0029 namespace detail { 0030 0031 /// Namespace for the AIDA detector description matrix helpers 0032 namespace matrix { 0033 0034 /// Access the TGeo identity transformation \ingroup DD4HEP \ingroup DD4HEP_CORE 0035 TGeoIdentity* _identity(); 0036 /// Extract the scale part of a TGeoMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0037 ROOT::Math::XYZVector _scale(const TGeoMatrix* matrix); 0038 /// Extract the scale part of a TGeoMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0039 ROOT::Math::XYZVector _scale(const TGeoMatrix& matrix); 0040 0041 /// Convert a Position object to a TGeoTranslation \ingroup DD4HEP \ingroup DD4HEP_CORE 0042 TGeoTranslation* _translation(const Position& pos); 0043 /// Extract the translational component of a TGeoMatrix as a Position \ingroup DD4HEP \ingroup DD4HEP_CORE 0044 Position _translation(const TGeoMatrix* matrix); 0045 /// Extract the translational component of a TGeoMatrix as a Position \ingroup DD4HEP \ingroup DD4HEP_CORE 0046 Position _translation(const TGeoMatrix& matrix); 0047 0048 /// Convert a RotationZYX object to a newly created TGeoRotation \ingroup DD4HEP \ingroup DD4HEP_CORE 0049 TGeoRotation* _rotationZYX(const RotationZYX& rot); 0050 /// Convert a Rotation3D object to a newly createdTGeoRotation \ingroup DD4HEP \ingroup DD4HEP_CORE 0051 TGeoRotation* _rotation3D(const Rotation3D& rot); 0052 /// Extract the rotational part of a TGeoMatrix as a Rotation3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0053 Rotation3D _rotation3D(const TGeoMatrix* matrix); 0054 /// Extract the rotational part of a TGeoMatrix as a Rotation3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0055 Rotation3D _rotation3D(const TGeoMatrix& matrix); 0056 0057 /// Convert a Transform3D object to a newly created TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0058 TGeoHMatrix* _transform(const Transform3D& trans); 0059 /// Convert a Position object to a newly created TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0060 TGeoHMatrix* _transform(const Position& pos); 0061 /// Convert a RotationZYX object to a newly created TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0062 TGeoHMatrix* _transform(const RotationZYX& rot); 0063 /// Convert a Rotation3D object to a newly created TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0064 TGeoHMatrix* _transform(const Rotation3D& rot3D); 0065 /// Convert a Position followed by a RotationZYX to a newly created TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0066 TGeoHMatrix* _transform(const Position& pos, const RotationZYX& rot); 0067 0068 /// Set a Transform3D object to a TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0069 TGeoHMatrix& _transform(TGeoHMatrix& mat, const Transform3D& trans); 0070 /// Set a Position object (translation) to a TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0071 TGeoHMatrix& _transform(TGeoHMatrix& mat, const Position& pos); 0072 /// Set a RotationZYX object to a TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0073 TGeoHMatrix& _transform(TGeoHMatrix& mat, const RotationZYX& rot); 0074 /// Set a Rotation3D object to a TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0075 TGeoHMatrix& _transform(TGeoHMatrix& mat, const Rotation3D& rot3D); 0076 /// Set a Position followed by a RotationZYX to a TGeoHMatrix \ingroup DD4HEP \ingroup DD4HEP_CORE 0077 TGeoHMatrix& _transform(TGeoHMatrix& mat, const Position& pos, const RotationZYX& rot); 0078 0079 /// Convert a TGeoMatrix object to a generic Transform3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0080 Transform3D _transform(const TGeoMatrix* matrix); 0081 Transform3D _transform(const TGeoMatrix& matrix); 0082 /// Convert a generic ROOT Matrix into a generic transformation Transform3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0083 void _transform(const TGeoMatrix* matrix, Transform3D& trafo); 0084 /// Convert a generic ROOT Matrix into a generic transformation Transform3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0085 void _transform(const TGeoMatrix& matrix, Transform3D& trafo); 0086 0087 /// Decompose a generic ROOT Matrix into a translation (Position) and a Rotation3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0088 void _decompose(const TGeoMatrix& matrix, Position& pos, Rotation3D& rot); 0089 /// Decompose a generic ROOT Matrix into a translation (Position) and a RotationZYX \ingroup DD4HEP \ingroup DD4HEP_CORE 0090 void _decompose(const TGeoMatrix& matrix, Position& pos, RotationZYX& rot); 0091 /// Decompose a generic ROOT Matrix into a translation (Position) and XYZAngles \ingroup DD4HEP \ingroup DD4HEP_CORE 0092 void _decompose(const TGeoMatrix& matrix, Position& pos, XYZAngles& rot); 0093 /// Decompose a generic Transform3D into a translation (Position) and a Rotation3D \ingroup DD4HEP \ingroup DD4HEP_CORE 0094 void _decompose(const Transform3D& matrix, Position& pos, Rotation3D& rot); 0095 /// Decompose a generic Transform3D into a translation (Position) and a RotationZYX \ingroup DD4HEP \ingroup DD4HEP_CORE 0096 void _decompose(const Transform3D& matrix, Position& pos, RotationZYX& rot); 0097 /// Decompose a generic Transform3D into a translation (Position) and XYZAngles \ingroup DD4HEP \ingroup DD4HEP_CORE 0098 void _decompose(const Transform3D& matrix, Position& pos, XYZAngles& rot); 0099 /// Decompose a generic Transform3D into a translation (Translation3D) and a RotationZYX \ingroup DD4HEP \ingroup DD4HEP_CORE 0100 void _decompose(const Transform3D& matrix, Translation3D& pos, RotationZYX& rot); 0101 /// Decompose a generic Transform3D into a translation (Translation3D) and XYZAngles \ingroup DD4HEP \ingroup DD4HEP_CORE 0102 void _decompose(const Transform3D& matrix, Translation3D& pos, XYZAngles& rot); 0103 /// Decompose a Rotation3D into a 3 orthogonal unit vectors. 0104 void _decompose(const Rotation3D& rot, Position& x, Position& y, Position& z); 0105 0106 /// Convert a 3x3 rotation matrix to XYZAngles \ingroup DD4HEP \ingroup DD4HEP_CORE 0107 XYZAngles _xyzAngles(const double* matrix); 0108 /// Convert a the rotation part of a TGeoMatrix to XYZAngles \ingroup DD4HEP \ingroup DD4HEP_CORE 0109 XYZAngles _xyzAngles(const TGeoMatrix* matrix); 0110 0111 /// Access determinant of rotation component (0 if no rotation present) 0112 double determinant(const TGeoMatrix* matrix); 0113 /// Access determinant of rotation component (0 if no rotation present) 0114 double determinant(const TGeoMatrix& matrix); 0115 /// Access determinant of the rotation component of a Transform3D 0116 double determinant(const Transform3D& trafo); 0117 /// Access determinant of a Rotation3D 0118 double determinant(const Rotation3D& rot); 0119 0120 enum MatrixEqualityCode { 0121 MATRICES_EQUAL = 1, 0122 MATRICES_DIFFER_TRANSLATION = 2, 0123 MATRICES_DIFFER_ROTATION = 4 0124 }; 0125 /// Check matrices for equality 0126 /** Return codes: 0127 * MATRICES_EQUAL: matrices left and right are equal 0128 * MATRICES_DIFFER_TRANSLATION: matrices differ in translation 0129 * MATRICES_DIFFER_ROTATION: matrices differ in rotation 0130 * or combination: MATRICES_DIFFER_TRANSLATION|MATRICES_DIFFER_ROTATION 0131 */ 0132 int _matrixEqual(const TGeoMatrix& left, const TGeoMatrix& right); 0133 } 0134 } 0135 } /* End namespace dd4hep */ 0136 0137 #endif // DD4HEP_MATRIXHELPERS_H
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