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#include <NavPropagator.h>
Definition at line 21 of file NavPropagator.h.
typedef std::map<const MagVolume*, NavVolume*> NavPropagator::MagVolumeMap [private] |
Definition at line 77 of file NavPropagator.h.
typedef RKPropagatorInS NavPropagator::PropagatorType [private] |
Definition at line 76 of file NavPropagator.h.
typedef TrajectoryStateOnSurface NavPropagator::TSOS [private] |
Definition at line 78 of file NavPropagator.h.
typedef std::pair<TrajectoryStateOnSurface,double> NavPropagator::TsosWP [private] |
Definition at line 75 of file NavPropagator.h.
| NavPropagator::NavPropagator | ( | const MagneticField * | field, |
| PropagationDirection | dir = alongMomentum |
||
| ) |
Definition at line 16 of file NavPropagator.cc.
References i, isIronVolume, and theField.
Referenced by clone().
: Propagator(dir), theAirMedium(3.e4, 1.3e-3*0.000307075*0.5/2), theIronMedium(1.76,7.87*0.000307075*0.46556/2), theMSEstimator(0.105), theELEstimator(0.105) { theField = dynamic_cast<const VolumeBasedMagneticField*>(field); //FIXME: iron volumes are hard-coded below... will change with new .xml geometry MM 28/6/07 int myIronVolumes[126] = {6,9,11,14,15,18,22,23,26,29,30,33,36,37,43,46,49,53,56,57,60,62, 63,65,71,77,105,106,107,111,112,113,114,115,116,117,118,122,123, 125,126,128,129,130,131,132,133,135,137,141,145,147,148,149,153, 154,155,156,157,158,159,160,164,165,167,168,170,171,172,173,174, 175,177,178,179,180,184,185,186,187,188,189,190,191,195,196,198, 200,204,208,210,211,212,216,217,218,219,220,221,222,223,227,228, 230,231,233,234,235,236,237,238,240,241,242,243,247,248,249,250, 251,252,253,254,258,259,261}; for(int i=0; i<272; i++) isIronVolume[i]=false; for(int i=0; i<126 ; i++) isIronVolume[myIronVolumes[i]]=true; // for(int i=1; i<272 ; i++) { // if(isIronVolume[i]) std::cout << "Volume no." << i << " is made of iron " << std::endl; // if(!isIronVolume[i]) std::cout << "Volume no." << i << " is made of air " << std::endl; //} }
| NavPropagator::~NavPropagator | ( | ) |
Definition at line 41 of file NavPropagator.cc.
References i, and theNavVolumeMap.
{
for (MagVolumeMap::iterator i = theNavVolumeMap.begin(); i != theNavVolumeMap.end(); ++i) {
delete i->second;
}
}
| virtual NavPropagator* NavPropagator::clone | ( | void | ) | const [inline, virtual] |
Implements Propagator.
Definition at line 69 of file NavPropagator.h.
References NavPropagator().
{return new NavPropagator(*this);}
| bool NavPropagator::destinationCrossed | ( | const TSOS & | startState, |
| const TSOS & | endState, | ||
| const Plane & | plane | ||
| ) | const [private] |
Definition at line 357 of file NavPropagator.cc.
References TrajectoryStateOnSurface::globalPosition(), and Plane::side().
Referenced by propagateWithPath().
{
bool res = ( plane.side( startState.globalPosition(), 1.e-6) !=
plane.side( endState.globalPosition(), 1.e-6));
/*
LogDebug("NavPropagator") << "NavPropagator::destinationCrossed called with startState "
<< startState << std::endl
<< " endState " << endState
<< std::endl
<< " plane at " << plane.position()
<< std::endl;
LogDebug("NavPropagator") << "plane.side( startState) " << plane.side( startState.globalPosition(), 1.e-6);
LogDebug("NavPropagator") << "plane.side( endState) " << plane.side( endState.globalPosition(), 1.e-6);
*/
return res;
}
| const NavVolume * NavPropagator::findVolume | ( | const TrajectoryStateOnSurface & | inputState | ) | const [private] |
Definition at line 203 of file NavPropagator.cc.
References gather_cfg::cout, VolumeBasedMagneticField::findVolume(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalPosition(), LogDebug, navVolume(), theField, Vector3DBase< T, FrameTag >::unit(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().
Referenced by propagateWithPath().
{
LogDebug("NavPropagator") << "NavPropagator: calling theField->findVolume ";
GlobalPoint gp = inputState.globalPosition() + 0.1*inputState.globalMomentum().unit();
// Next protection only needed when 1 mm linear move crosses the z==0 plane:
GlobalPoint gpSym(gp.x(), gp.y(), (gp.z()<0? gp.z() : -gp.z()));
const MagVolume* magVolume = theField->findVolume( gpSym);
LogDebug("NavPropagator") << "NavPropagator: got MagVolume* " << magVolume
<< " when searching with pos " << gpSym ;
if (!magVolume) {
cout << "Got invalid volume pointer " << magVolume << " at position " << gpSym;
return 0;
}
return navVolume(magVolume);
}
| const MagneticField * NavPropagator::magneticField | ( | ) | const [virtual] |
Implements Propagator.
Definition at line 47 of file NavPropagator.cc.
References theField.
{return theField;}
Definition at line 225 of file NavPropagator.cc.
References gather_cfg::cout, i, isIronVolume, n, MagVolume6Faces::name, query::result, and theNavVolumeMap.
Referenced by findVolume().
{
NavVolume* result;
MagVolumeMap::iterator i = theNavVolumeMap.find( magVolume);
if (i == theNavVolumeMap.end()) {
// Create a NavVolume from a MagVolume if the NavVolume doesn't exist yet
// FIXME: hardcoded iron/air classification should be made into something more general
// will break with new magnetic field volume .xml file MM 28/6/07
const MagVolume6Faces* pVol6 = dynamic_cast<const MagVolume6Faces*> ( magVolume );
int n=0;
bool isIron=false;
if(pVol6) {
std::stringstream ss(pVol6->name.substr(5));
ss >> n;
// std::cout << " Found volume with number " << n << std::endl;
} else {
std::cout << "Error (NavVolume6Faces) failed to get MagVolume6Faces pointer" << std::endl;
}
if(n<1 || n>271) {
std::cout << "Error (NavVolume6Faces) unexpected Volume number!" << std::endl;
} else {
isIron = isIronVolume[n];
}
result= new NavVolume6Faces( *magVolume, isIron);
theNavVolumeMap[magVolume] = result;
}
else result = i->second;
return result;
}
| TrajectoryStateOnSurface NavPropagator::noNextVolume | ( | TrajectoryStateOnSurface | startingState | ) | const [private] |
Definition at line 378 of file NavPropagator.cc.
References LogDebug.
Referenced by propagateWithPath().
{
LogDebug("NavPropagator") << std::endl
<< "Propagation reached end of volume geometry without crossing target surface"
<< std::endl
<< "starting state of last propagation " << startingState;
return TrajectoryStateOnSurface();
}
| TrajectoryStateOnSurface NavPropagator::propagate | ( | const FreeTrajectoryState & | fts, |
| const Cylinder & | cylinder | ||
| ) | const [inline, virtual] |
propagation to cylinder
Implements Propagator.
Definition at line 60 of file NavPropagator.h.
References propagateWithPath().
{
return propagateWithPath(fts,cylinder).first;
}
| TrajectoryStateOnSurface NavPropagator::propagate | ( | const FreeTrajectoryState & | ts, |
| const Plane & | plane | ||
| ) | const [inline, virtual] |
propagation of FTS to plane
Implements Propagator.
Definition at line 50 of file NavPropagator.h.
References propagateWithPath().
{
return propagateWithPath(ts,plane).first;
}
| TrajectoryStateOnSurface NavPropagator::propagate | ( | const TrajectoryStateOnSurface & | ts, |
| const Plane & | plane | ||
| ) | const [inline, virtual] |
propagation of TSOS to plane
Reimplemented from Propagator.
Definition at line 40 of file NavPropagator.h.
References propagateWithPath().
{
return propagateWithPath(ts,plane).first;
}
| std::pair< TrajectoryStateOnSurface, double > NavPropagator::propagateInVolume | ( | const NavVolume * | currentVolume, |
| const TrajectoryStateOnSurface & | startingState, | ||
| const Plane & | targetPlane | ||
| ) | const [private] |
Definition at line 257 of file NavPropagator.cc.
References alongMomentum, GlobalTrajectoryParameters::charge(), Vector3DBase< T, FrameTag >::cross(), VolumeEnergyLossEstimator::estimate(), VolumeMultipleScatteringEstimator::estimate(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalParameters(), TrajectoryStateOnSurface::globalPosition(), MagVolume::inside(), NavVolume::isIron(), RKPropagatorInS::magneticField(), Plane::normalVector(), GloballyPositioned< T >::position(), RKPropagatorInS::propagateWithPath(), TrajectoryStateOnSurface::surface(), theAirMedium, theELEstimator, theIronMedium, theMaterialUpdator, theMSEstimator, Vector3DBase< T, FrameTag >::unit(), VolumeMaterialEffectsUpdator::updateState(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().
Referenced by propagateWithPath().
{
PropagatorType prop( *currentVolume);
// OK, fix is rather ugly for now: need to reflect z>0 states to z<0 MM 25/6/07
bool isReflected = false;
TSOS okState = startingState;
PlaneBuilder::ReturnType ReflectedPlane;
Plane okPlane = targetPlane;
if (startingState.globalPosition().z()>0 ||
(fabs(startingState.globalPosition().z())<1.e-4 && startingState.globalMomentum().z()>1.e-4)) {
GlobalTrajectoryParameters gtp( GlobalPoint(startingState.globalPosition().x(),
startingState.globalPosition().y(),
-startingState.globalPosition().z()),
GlobalVector(startingState.globalMomentum().x(),
startingState.globalMomentum().y(),
-startingState.globalMomentum().z()),
startingState.globalParameters().charge(), prop.magneticField() );
FreeTrajectoryState fts(gtp);
TSOS ReflectedState( fts, startingState.surface());
okState = ReflectedState;
GlobalVector TempVec = targetPlane.normalVector();
GlobalVector ReflectedVector = GlobalVector ( TempVec.x(), TempVec.y(), -TempVec.z());
GlobalVector zAxis = ReflectedVector.unit();
GlobalVector yAxis( zAxis.y(), -zAxis.x(), 0);
GlobalVector xAxis = yAxis.cross( zAxis);
Surface::RotationType rot = Surface::RotationType( xAxis, yAxis, zAxis);
GlobalPoint gp = targetPlane.position();
GlobalPoint gpSym(gp.x(), gp.y(), -gp.z());
PlaneBuilder pb;
ReflectedPlane = pb.plane( gpSym, rot);
okPlane = *ReflectedPlane;
isReflected = true;
}
// Done Reflecting
TsosWP res = prop.propagateWithPath( okState, okPlane);
// Now reflect back the result if necessary...
if (isReflected && res.first.isValid()) { // reflect back... nobody should know we secretely z-reflected the tsos
TSOS TempState = res.first;
GlobalTrajectoryParameters gtp( GlobalPoint(TempState.globalPosition().x(),
TempState.globalPosition().y(),
-TempState.globalPosition().z()),
GlobalVector(TempState.globalMomentum().x(),
TempState.globalMomentum().y(),
-TempState.globalMomentum().z()),
TempState.globalParameters().charge(), prop.magneticField() );
FreeTrajectoryState fts(gtp);
TSOS ReflectedState( fts, TempState.surface());
res.first = ReflectedState;
isReflected = false;
}
// Done Reflecting back !
if (res.first.isValid()) {
GlobalPoint gp = res.first.globalPosition();
GlobalPoint gpSym(gp.x(), gp.y(), (gp.z()<0? gp.z() : -gp.z()));
if (currentVolume->inside( gpSym )) {
//FIXME: smarter way of treating material effects is needed! Now only Iron/Air...
VolumeMediumProperties thisMedium = currentVolume->isIron()? theIronMedium:theAirMedium;
//
// try to add material effects
//
VolumeMaterialEffectsEstimate msEstimate(theMSEstimator.estimate(res.first,
res.second,
thisMedium));
VolumeMaterialEffectsEstimate elEstimate(theELEstimator.estimate(res.first,
res.second,
thisMedium));
std::vector<const VolumeMaterialEffectsEstimate*> matEstimates;
matEstimates.push_back(&msEstimate);
matEstimates.push_back(&elEstimate);
TSOS newState = theMaterialUpdator.updateState(res.first,alongMomentum,matEstimates);
return TsosWP(newState,res.second);
}
// sometimes fails when propagation on plane and surface are less than 0.1 mm apart...
}
// return TsosWP( TrajectoryStateOnSurface(), 0); // Gives 'double free' errors... return res even when Outside volume...
return res;
}
| std::pair< TrajectoryStateOnSurface, double > NavPropagator::propagateWithPath | ( | const TrajectoryStateOnSurface & | inputState, |
| const Plane & | plane | ||
| ) | const [virtual] |
propagation of TSOS to plane with path length
Reimplemented from Propagator.
Definition at line 50 of file NavPropagator.cc.
References alongMomentum, GlobalTrajectoryParameters::charge(), prof2calltree::count, gather_cfg::cout, NavVolume::crossToNextVolume(), destinationCrossed(), VolumeEnergyLossEstimator::estimate(), VolumeMultipleScatteringEstimator::estimate(), findVolume(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalParameters(), TrajectoryStateOnSurface::globalPosition(), NavVolume::isIron(), TrajectoryStateOnSurface::isValid(), LogDebug, noNextVolume(), VolumeCrossReturnType::path(), GloballyPositioned< T >::position(), propagateInVolume(), TrajectoryStateOnSurface::surface(), theAirMedium, theELEstimator, theField, theIronMedium, theMaterialUpdator, theMSEstimator, VolumeCrossReturnType::tsos(), Vector3DBase< T, FrameTag >::unit(), VolumeMaterialEffectsUpdator::updateState(), VolumeCrossReturnType::volume(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().
Referenced by propagate().
{
LogDebug("NavPropagator") << "NavPropagator::propagateWithPath(TrajectoryStateOnSurface, Plane) called with "
<< inputState;
VolumeCrossReturnType exitState( 0, inputState, 0.0);
TSOS startingState = inputState;
TSOS TempState = inputState;
const NavVolume* currentVolume = 0; // explicit initialization to get rid of compiler warning
int count = 0;
int maxCount = 100;
while (!destinationCrossed( startingState, TempState, targetPlane)) {
LogDebug("NavPropagator") << "NavPropagator:: at beginning of while loop at iteration " << count ;
startingState = TempState;
bool isReflected = false;
if (exitState.volume() != 0) { // next volume connected
currentVolume = exitState.volume();
}
else {
// 1 mm shifted peek is necessary only because geometry is not yet glued and exists only for z<0
GlobalPoint gp = startingState.globalPosition() + 0.1*startingState.globalMomentum().unit();
if (gp.z()>0) { // Reflect in Z (as long as MagVolumes exist only for z<0
GlobalTrajectoryParameters gtp( GlobalPoint(startingState.globalPosition().x(),
startingState.globalPosition().y(),
-startingState.globalPosition().z()),
GlobalVector(startingState.globalMomentum().x(),
startingState.globalMomentum().y(),
-startingState.globalMomentum().z()),
startingState.globalParameters().charge(), theField );
FreeTrajectoryState fts(gtp);
TempState = TSOS( fts, startingState.surface());
isReflected = true;
}
currentVolume = findVolume( TempState );
if (currentVolume == 0) {
std::cout << "NavPropagator: findVolume failed to find volume containing point "
<< startingState.globalPosition() ;
return std::pair<TrajectoryStateOnSurface,double>(noNextVolume( startingState), 0);
}
}
PropagatorType currentPropagator( *currentVolume);
LogDebug("NavPropagator") << "NavPropagator: calling crossToNextVolume" ;
VolumeCrossReturnType exitStateNM = currentVolume->crossToNextVolume( TempState, currentPropagator);
LogDebug("NavPropagator") << "NavPropagator: crossToNextVolume returned" ;
LogDebug("NavPropagator") << "Volume pointer: " << exitState.volume() << " and new ";
LogDebug("NavPropagator") << exitState.tsos() ;
LogDebug("NavPropagator") << "So that was a path length " << exitState.path() ;
if (exitStateNM.tsos().isValid()) {
// try to add material effects !!
//FIXME: smarter way of treating material effects is needed! Now only Iron/Air...
VolumeMediumProperties thisMedium = currentVolume->isIron()? theIronMedium:theAirMedium;
VolumeMaterialEffectsEstimate msEstimate(theMSEstimator.estimate(exitStateNM.tsos(),
exitStateNM.path(),
thisMedium));
VolumeMaterialEffectsEstimate elEstimate(theELEstimator.estimate(exitStateNM.tsos(),
exitStateNM.path(),
thisMedium));
std::vector<const VolumeMaterialEffectsEstimate*> matEstimates;
matEstimates.push_back(&msEstimate);
matEstimates.push_back(&elEstimate);
exitState = VolumeCrossReturnType(exitStateNM.volume(),
theMaterialUpdator.updateState(exitStateNM.tsos(),alongMomentum,matEstimates),
exitStateNM.path());
} else {
exitState = exitStateNM;
}
if ( !exitState.tsos().isValid()) {
// return propagateInVolume( currentVolume, startingState, targetPlane);
std::cout << "NavPropagator: failed to crossToNextVolume in volume at pos "
<< currentVolume->position();
break;
}
else {
LogDebug("NavPropagator") << "NavPropagator: crossToNextVolume reached volume ";
if (exitState.volume() != 0) {
LogDebug("NavPropagator") << " at pos "
<< exitState.volume()->position()
<< "with state " << exitState.tsos() ;
}
else LogDebug("NavPropagator") << " unknown";
}
TempState = exitState.tsos();
if (fabs(exitState.path())<0.01) {
LogDebug("NavPropagator") << "failed to move at all!! at position: " << exitState.tsos().globalPosition();
GlobalTrajectoryParameters gtp( exitState.tsos().globalPosition()+0.01*exitState.tsos().globalMomentum().unit(),
exitState.tsos().globalMomentum(),
exitState.tsos().globalParameters().charge(), theField );
FreeTrajectoryState fts(gtp);
TSOS ShiftedState( fts, exitState.tsos().surface());
// exitState.tsos() = ShiftedState;
TempState = ShiftedState;
LogDebug("NavPropagator") << "Shifted to new position " << TempState.globalPosition();
}
// std::cout << "Just moved " << exitState.path() << " cm through " << ( currentVolume->isIron()? "IRON":"AIR" );
// std::cout << " at radius: " << TempState.globalPosition().perp();
// std::cout << " and lost " << exitStateNM.tsos().globalMomentum().mag()-exitState.tsos().globalMomentum().mag() << " GeV of Energy !!!! New energy: " << exitState.tsos().globalMomentum().mag() << std::endl;
// reflect back to normal universe if necessary:
if (isReflected) { // reflect back... nobody should know we secretely z-reflected the tsos
GlobalTrajectoryParameters gtp( GlobalPoint(TempState.globalPosition().x(),
TempState.globalPosition().y(),
-TempState.globalPosition().z()),
GlobalVector(TempState.globalMomentum().x(),
TempState.globalMomentum().y(),
-TempState.globalMomentum().z()),
TempState.globalParameters().charge(), theField );
FreeTrajectoryState fts(gtp);
TSOS ReflectedState( fts, TempState.surface());
TempState = ReflectedState;
isReflected = false;
}
++count;
if (count > maxCount) {
LogDebug("NavPropagator") << "Ohoh, NavPropagator in infinite loop, count = " << count;
return TsosWP();
}
}
// Arriving here only if destinationCrossed or if crossToNextVolume returned invalid state,
// in which case we should check if the targetPlane is not crossed in the current volume
return propagateInVolume( currentVolume, startingState, targetPlane);
}
| std::pair< TrajectoryStateOnSurface, double > NavPropagator::propagateWithPath | ( | const FreeTrajectoryState & | fts, |
| const Cylinder & | cylinder | ||
| ) | const [virtual] |
propagation to cylinder with path length
Implements Propagator.
Definition at line 391 of file NavPropagator.cc.
References LogDebug.
| std::pair< TrajectoryStateOnSurface, double > NavPropagator::propagateWithPath | ( | const FreeTrajectoryState & | fts, |
| const Plane & | plane | ||
| ) | const [virtual] |
propagation of FTS to plane with path length
Implements Propagator.
Definition at line 398 of file NavPropagator.cc.
References LogDebug.
bool NavPropagator::isIronVolume[272] [private] |
Definition at line 83 of file NavPropagator.h.
Referenced by NavPropagator(), and navVolume().
const VolumeMediumProperties NavPropagator::theAirMedium [private] |
Definition at line 100 of file NavPropagator.h.
Referenced by propagateInVolume(), and propagateWithPath().
const VolumeEnergyLossEstimator NavPropagator::theELEstimator [private] |
Definition at line 103 of file NavPropagator.h.
Referenced by propagateInVolume(), and propagateWithPath().
const VolumeBasedMagneticField* NavPropagator::theField [private] |
Definition at line 81 of file NavPropagator.h.
Referenced by findVolume(), magneticField(), NavPropagator(), and propagateWithPath().
const VolumeMediumProperties NavPropagator::theIronMedium [private] |
Definition at line 101 of file NavPropagator.h.
Referenced by propagateInVolume(), and propagateWithPath().
const VolumeMaterialEffectsUpdator NavPropagator::theMaterialUpdator [private] |
Definition at line 104 of file NavPropagator.h.
Referenced by propagateInVolume(), and propagateWithPath().
const VolumeMultipleScatteringEstimator NavPropagator::theMSEstimator [private] |
Definition at line 102 of file NavPropagator.h.
Referenced by propagateInVolume(), and propagateWithPath().
MagVolumeMap NavPropagator::theNavVolumeMap [mutable, private] |
Definition at line 82 of file NavPropagator.h.
Referenced by navVolume(), and ~NavPropagator().
1.7.3