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G4ErrorSurfaceTrajParam.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4ErrorSurfaceTrajParam.cc
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//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// ------------------------------------------------------------
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// GEANT 4 class implementation file
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// ------------------------------------------------------------
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//
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#include "
G4ErrorSurfaceTrajParam.hh
"
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#include <iomanip>
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#include "
G4ThreeVector.hh
"
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#include "
G4GeometryTolerance.hh
"
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//------------------------------------------------------------------------
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G4ErrorSurfaceTrajParam::
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G4ErrorSurfaceTrajParam
(
const
G4Point3D
&
pos
,
const
G4Vector3D
&
mom
,
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const
G4Vector3D
& vecV,
const
G4Vector3D
& vecW )
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{
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SetParameters
( pos, mom, vecV, vecW );
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}
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//------------------------------------------------------------------------
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G4ErrorSurfaceTrajParam::
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G4ErrorSurfaceTrajParam
(
const
G4Point3D
&
pos
,
const
G4Vector3D
&
mom
,
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const
G4Plane3D
&
plane
)
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{
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SetParameters
( pos, mom, plane );
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}
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//------------------------------------------------------------------------
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void
G4ErrorSurfaceTrajParam::
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SetParameters
(
const
G4Point3D
&
pos
,
const
G4Vector3D
&
mom
,
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const
G4Plane3D
&
plane
)
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{
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//--- Get two perpendicular vectors: first parallel X
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// (unless normal is parallel to X, then take Y)
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G4double
kCarTolerance
=
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G4GeometryTolerance::GetInstance
()->
GetSurfaceTolerance
();
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G4ThreeVector
Xvec(1.,0.,0.);
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G4Vector3D
vecV = -Xvec.
cross
(plane.
normal
());
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if
( vecV.
mag
() <
kCarTolerance
)
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{
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G4ThreeVector
Zvec(0.,0.,1.);
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vecV = Zvec.
cross
(plane.
normal
());
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}
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G4Vector3D
vecW = plane.
normal
().cross( vecV );
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SetParameters
( pos, mom, vecV, vecW );
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}
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//------------------------------------------------------------------------
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void
G4ErrorSurfaceTrajParam::
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SetParameters
(
const
G4Point3D
&
pos
,
const
G4Vector3D
&
mom
,
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const
G4Vector3D
& vecV,
const
G4Vector3D
& vecW )
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{
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if
( mom.
mag
() > 0. ) {
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fDir
=
mom
;
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fDir
/= mom.
mag
();
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}
else
{
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fDir
=
G4Vector3D
(0.,0.,0.);
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}
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fVectorV
= vecV / vecV.
mag
();
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fVectorW
= vecW / vecW.
mag
();
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fInvP
= 1./mom.
mag
();
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G4ThreeVector
momv(mom);
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//check 3 vectors are ortogonal and right handed
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// now all 4 scalar memeber variables retain the signs
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// fPV = momv.project( vecV ).mag();
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// fPW = momv.project( vecW ).mag();
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fPV
= momv.
dot
( vecV );
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fPW
= momv.
dot
( vecW );
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G4ThreeVector
posv(pos);
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// fV = posv.project( vecV ).mag();
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// fW = posv.project( vecW ).mag();
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fV
= posv.
dot
( vecV );
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fW
= posv.
dot
( vecW );
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}
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//------------------------------------------------------------------------
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std::ostream&
operator<<
(std::ostream& out,
const
G4ErrorSurfaceTrajParam
&
tp
)
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{
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// long mode = out.setf(std::ios::fixed,std::ios::floatfield);
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// out << tp.theType;
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// out << std::setprecision(5) << std::setw(10);
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out <<
" InvP= "
<< tp.
fInvP
<<
" PV= "
<< tp.
fPV
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<<
" PW= "
<< tp.
fPW
<<
" V= "
<< tp.
fV
<<
" W= "
<< tp.
fW
<<
G4endl
;
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out <<
" vectorV direction= "
<< tp.
fVectorV
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<<
" vectorW direction= "
<< tp.
fVectorW
<<
G4endl
;
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return
out;
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}
geant4
tree
geant4-10.6-release
source
error_propagation
src
G4ErrorSurfaceTrajParam.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:13
using
1.8.2 with
ECCE GitHub integration