Belle II Software light-2406-ragdoll
CLHEPToROOT.h
1/**************************************************************************
2 * basf2 (Belle II Analysis Software Framework) *
3 * Author: The Belle II Collaboration *
4 * *
5 * See git log for contributors and copyright holders. *
6 * This file is licensed under LGPL-3.0, see LICENSE.md. *
7 **************************************************************************/
8
9#pragma once
10
11/* External headers. */
12#include <CLHEP/Geometry/Point3D.h>
13#include <CLHEP/Matrix/SymMatrix.h>
14#include <CLHEP/Vector/LorentzVector.h>
15#include <Math/Vector3D.h>
16#include <Math/Vector4D.h>
17#include <TMatrixFSym.h>
18
19namespace Belle2 {
25 namespace CLHEPToROOT {
26
31 inline ROOT::Math::PxPyPzEVector
32 getLorentzVector(const CLHEP::HepLorentzVector& vector)
33 {
34 return ROOT::Math::PxPyPzEVector(vector.x(), vector.y(), vector.z(), vector.t());
35 }
36
41 inline ROOT::Math::XYZVector getXYZVector(const HepGeom::Point3D<double>& point)
42 {
43 return ROOT::Math::XYZVector(point.x(), point.y(), point.z());
44 }
45
50 inline TMatrixFSym getTMatrixFSym(const CLHEP::HepSymMatrix& matrix)
51 {
52 int n = matrix.num_row();
53 TMatrixFSym m(n);
54 /*
55 * TMatrixFSym is stored as a full matrix, thus all elements must be set.
56 */
57 for (int i = 0; i < n; ++i) {
58 for (int j = 0; j < n; ++j)
59 m[i][j] = matrix[i][j];
60 }
61 return m;
62 }
63
68 inline TMatrixDSym getTMatrixDSym(const CLHEP::HepSymMatrix& matrix)
69 {
70 int n = matrix.num_row();
71 TMatrixDSym m(n);
72 /*
73 * TMatrixFSym is stored as a full matrix, thus all elements must be set.
74 */
75 for (int i = 0; i < n; ++i) {
76 for (int j = 0; j < n; ++j)
77 m[i][j] = matrix[i][j];
78 }
79 return m;
80 }
81
82 }
83
85}
Abstract base class for different kinds of events.
Definition: ClusterUtils.h:24