MaterialAccountingGroup Class Reference

#include <MaterialAccountingGroup.h>

Classes
class	BoundingBox

Public Member Functions
bool	addDetector (const MaterialAccountingDetector &detector)
	buffer material from a detector, if the detector is inside the DetLayer bounds More...
MaterialAccountingStep	average (void) const
	return the average normalized material accounting informations More...
double	averageEnergyLoss (void) const
	return the average normalized energy loss density factor for Bethe-Bloch More...
double	averageLength (void) const
	return the average normalized layer thickness More...
double	averageRadiationLengths (void) const
	return the average normalized number of radiation lengths More...
void	endOfTrack (void)
	commit the buffer and reset the "already hit by this track" flag More...
std::string	info (void) const
	get some infos More...
bool	inside (const MaterialAccountingDetector &detector) const
	check if detector is inside any part of this layer More...
	MaterialAccountingGroup (const std::string &name, const DDCompactView &geometry)
	explicit constructors More...
const std::string &	name (void) const
	get the layer name More...
void	savePlots (void)
	save the plots More...
double	sigmaEnergyLoss (void) const
	return the sigma of the normalized energy loss density factor for Bethe-Bloch More...
double	sigmaLength (void) const
	return the sigma of the normalized layer thickness More...
double	sigmaRadiationLengths (void) const
	return the sigma of the normalized number of radiation lengths More...
unsigned int	tracks (void) const
	return the number of tracks that hit this layer More...
	~MaterialAccountingGroup (void)
	destructor More...

Private Member Functions
	MaterialAccountingGroup (const MaterialAccountingGroup &layer)
	stop default copy ctor More...
MaterialAccountingGroup &	operator= (const MaterialAccountingGroup &layer)
	stop default assignment operator More...
void	savePlot (TH1F *plot, const std::string &name)
void	savePlot (TProfile *plot, float average, const std::string &name)

Private Attributes
MaterialAccountingStep	m_accounting
BoundingBox	m_boundingbox
MaterialAccountingStep	m_buffer
bool	m_counted
TH1F *	m_dedx_spectrum
TProfile *	m_dedx_vs_eta
TProfile *	m_dedx_vs_r
TProfile *	m_dedx_vs_z
std::vector< GlobalPoint >	m_elements
MaterialAccountingStep	m_errors
TFile *	m_file
std::string	m_name
TH1F *	m_radlen_spectrum
TProfile *	m_radlen_vs_eta
TProfile *	m_radlen_vs_r
TProfile *	m_radlen_vs_z
unsigned int	m_tracks

Static Private Attributes
static double const	s_tolerance = 0.01

Detailed Description

Definition at line 18 of file MaterialAccountingGroup.h.

Constructor & Destructor Documentation

MaterialAccountingGroup::MaterialAccountingGroup	(	const std::string &	name,
		const DDCompactView &	geometry
	)

explicit constructors

Definition at line 22 of file MaterialAccountingGroup.cc.

References DDFilteredView::addFilter(), DDSpecificsFilter::equals, alcazmumu_cfi::filter, MaterialAccountingGroup::BoundingBox::grow(), i, m_boundingbox, m_dedx_spectrum, m_dedx_vs_eta, m_dedx_vs_r, m_dedx_vs_z, m_elements, m_name, m_radlen_spectrum, m_radlen_vs_eta, m_radlen_vs_r, m_radlen_vs_z, DDFilteredView::next(), perp(), position, s_tolerance, DDSpecificsFilter::setCriteria(), DDFilteredView::translation(), and detailsBasic3DVector::z.

                                                                                                         :
  m_name( name ),
  m_elements(),
  m_boundingbox(),
  m_accounting(),
  m_errors(),
  m_tracks( 0 ),
  m_counted( false ),
  m_file( 0 )
{
  // retrieve the elements from DDD
  DDFilteredView fv( geometry );
  DDSpecificsFilter filter;
  filter.setCriteria(DDValue("TrackingMaterialGroup", name), DDSpecificsFilter::equals);
  fv.addFilter(filter);
  while (fv.next()) {
    // DD3Vector and DDTranslation are the same type as math::XYZVector
    math::XYZVector position = fv.translation() / 10.;  // mm -> cm
    m_elements.push_back( GlobalPoint(position.x(), position.y(), position.z()) );
  }

  // grow the bounding box
  for (unsigned int i = 0; i < m_elements.size(); ++i) {
    m_boundingbox.grow(m_elements[i].perp(), m_elements[i].z());
  }
  m_boundingbox.grow(s_tolerance);

  // initialize the histograms 
  m_dedx_spectrum   = new TH1F((m_name + "_dedx_spectrum").c_str(),     "Energy loss spectrum",       1000,    0,   1);
  m_radlen_spectrum = new TH1F((m_name + "_radlen_spectrum").c_str(),   "Radiation lengths spectrum", 1000,    0,   1);
  m_dedx_vs_eta     = new TProfile((m_name + "_dedx_vs_eta").c_str(),   "Energy loss vs. eta",         600,   -3,   3);
  m_dedx_vs_z       = new TProfile((m_name + "_dedx_vs_z").c_str(),     "Energy loss vs. Z",          6000, -300, 300);
  m_dedx_vs_r       = new TProfile((m_name + "_dedx_vs_r").c_str(),     "Energy loss vs. R",          1200,    0, 120);
  m_radlen_vs_eta   = new TProfile((m_name + "_radlen_vs_eta").c_str(), "Radiation lengths vs. eta",   600,   -3,   3);
  m_radlen_vs_z     = new TProfile((m_name + "_radlen_vs_z").c_str(),   "Radiation lengths vs. Z",    6000, -300, 300);
  m_radlen_vs_r     = new TProfile((m_name + "_radlen_vs_r").c_str(),   "Radiation lengths vs. R",    1200,    0, 120);
  m_dedx_spectrum->SetDirectory( 0 );
  m_radlen_spectrum->SetDirectory( 0 );
  m_dedx_vs_eta->SetDirectory( 0 );
  m_dedx_vs_z->SetDirectory( 0 );
  m_dedx_vs_r->SetDirectory( 0 );
  m_radlen_vs_eta->SetDirectory( 0 );
  m_radlen_vs_z->SetDirectory( 0 );
  m_radlen_vs_r->SetDirectory( 0 );
}

MaterialAccountingGroup::~MaterialAccountingGroup

(

void

)

destructor

Definition at line 68 of file MaterialAccountingGroup.cc.

References m_dedx_spectrum, m_dedx_vs_eta, m_dedx_vs_r, m_dedx_vs_z, m_radlen_spectrum, m_radlen_vs_eta, m_radlen_vs_r, and m_radlen_vs_z.

{
  delete m_dedx_spectrum;
  delete m_dedx_vs_eta;
  delete m_dedx_vs_z;
  delete m_dedx_vs_r;
  delete m_radlen_spectrum;
  delete m_radlen_vs_eta;
  delete m_radlen_vs_z;
  delete m_radlen_vs_r;
}

MaterialAccountingGroup::MaterialAccountingGroup ( const MaterialAccountingGroup &  layer )

private

stop default copy ctor

Member Function Documentation

bool MaterialAccountingGroup::addDetector

(

const MaterialAccountingDetector &

detector

)

buffer material from a detector, if the detector is inside the DetLayer bounds

Definition at line 99 of file MaterialAccountingGroup.cc.

References inside(), m_buffer, m_counted, and MaterialAccountingDetector::material().

{
  if (not inside(detector))
    return false;

  // multiple hits in the same layer (overlaps, etc.) from a single track still count as one for averaging,
  // since the energy deposits from the track have been already split between the different detectors
  m_buffer += detector.material();
  m_counted = true;

  return true;
}

MaterialAccountingStep MaterialAccountingGroup::average ( void  ) const

inline

return the average normalized material accounting informations

Definition at line 97 of file MaterialAccountingGroup.h.

References m_accounting, and m_tracks.

Referenced by endOfTrack().

  {
    return m_tracks ? m_accounting / m_tracks : MaterialAccountingStep();
  }

double MaterialAccountingGroup::averageEnergyLoss ( void  ) const

inline

return the average normalized energy loss density factor for Bethe-Bloch

Definition at line 115 of file MaterialAccountingGroup.h.

References MaterialAccountingStep::energyLoss(), m_accounting, and m_tracks.

Referenced by TrackingMaterialAnalyser::saveParameters(), savePlots(), TrackingMaterialAnalyser::saveXml(), and sigmaEnergyLoss().

  {
    return m_tracks ? m_accounting.energyLoss() / m_tracks : 0.;
  }

double MaterialAccountingGroup::averageLength ( void  ) const

inline

return the average normalized layer thickness

Definition at line 103 of file MaterialAccountingGroup.h.

References MaterialAccountingStep::length(), m_accounting, and m_tracks.

Referenced by TrackingMaterialAnalyser::saveParameters(), and sigmaLength().

  {
    return m_tracks ? m_accounting.length() / m_tracks : 0.;
  }

double MaterialAccountingGroup::averageRadiationLengths ( void  ) const

inline

return the average normalized number of radiation lengths

Definition at line 109 of file MaterialAccountingGroup.h.

References m_accounting, m_tracks, and MaterialAccountingStep::radiationLengths().

Referenced by TrackingMaterialAnalyser::saveParameters(), savePlots(), TrackingMaterialAnalyser::saveXml(), and sigmaRadiationLengths().

  {
    return m_tracks ? m_accounting.radiationLengths() / m_tracks : 0.;
  }

void MaterialAccountingGroup::endOfTrack

(

void

)

commit the buffer and reset the "already hit by this track" flag

Definition at line 112 of file MaterialAccountingGroup.cc.

References average(), PV3DBase< T, PVType, FrameType >::eta(), m_accounting, m_buffer, m_counted, m_dedx_spectrum, m_dedx_vs_eta, m_dedx_vs_r, m_dedx_vs_z, m_errors, m_radlen_spectrum, m_radlen_vs_eta, m_radlen_vs_r, m_radlen_vs_z, m_tracks, PV3DBase< T, PVType, FrameType >::perp(), and PV3DBase< T, PVType, FrameType >::z().

                                             {
  // add a detector
  if (m_counted) {
    m_accounting += m_buffer;
    m_errors     += m_buffer * m_buffer;
    ++m_tracks;

    GlobalPoint average( (m_buffer.in().x() + m_buffer.out().x()) / 2.,
                         (m_buffer.in().y() + m_buffer.out().y()) / 2., 
                         (m_buffer.in().z() + m_buffer.out().z()) / 2. );
    m_dedx_spectrum->Fill(   m_buffer.energyLoss() );
    m_radlen_spectrum->Fill( m_buffer.radiationLengths() );
    m_dedx_vs_eta->Fill(   average.eta(),  m_buffer.energyLoss(),       1. );
    m_dedx_vs_z->Fill(     average.z(),    m_buffer.energyLoss(),       1. );
    m_dedx_vs_r->Fill(     average.perp(), m_buffer.energyLoss(),       1. );
    m_radlen_vs_eta->Fill( average.eta(),  m_buffer.radiationLengths(), 1. );
    m_radlen_vs_z->Fill(   average.z(),    m_buffer.radiationLengths(), 1. );
    m_radlen_vs_r->Fill(   average.perp(), m_buffer.radiationLengths(), 1. );
  }
  m_counted = false;
  m_buffer  = MaterialAccountingStep();
}

std::string MaterialAccountingGroup::info

(

void

)

const

get some infos

Definition at line 177 of file MaterialAccountingGroup.cc.

References m_boundingbox, m_elements, m_name, dbtoconf::out, MaterialAccountingGroup::BoundingBox::range_r(), and MaterialAccountingGroup::BoundingBox::range_z().

{
  std::stringstream out;
  out << std::setw(48) << std::left << m_name << std::right << std::fixed;;
  out << "BBox: " << std::setprecision(1) << std::setw(6) << m_boundingbox.range_z().first << " < Z < " << std::setprecision(1) << std::setw(6) << m_boundingbox.range_z().second;
  out << ", "     << std::setprecision(1) << std::setw(5) << m_boundingbox.range_r().first << " < R < " << std::setprecision(1) << std::setw(5) << m_boundingbox.range_r().second;
  out << "   Elements: " << std::setw(6) << m_elements.size();
  return out.str();
}

bool MaterialAccountingGroup::inside

(

const MaterialAccountingDetector &

detector

)

const

check if detector is inside any part of this layer

Definition at line 84 of file MaterialAccountingGroup.cc.

References i, MaterialAccountingGroup::BoundingBox::inside(), m_boundingbox, m_elements, PV3DBase< T, PVType, FrameType >::perp(), MaterialAccountingDetector::position(), position, s_tolerance, and PV3DBase< T, PVType, FrameType >::z().

Referenced by addDetector().

{
  const GlobalPoint & position = detector.position();
  // first check to see if the point is inside the bounding box
  if (not m_boundingbox.inside(position.perp(), position.z())) {
    return false;
  } else {
    // now check if the point is actually close enough to any element
    for (unsigned int i = 0; i < m_elements.size(); ++i)
      if ((position - m_elements[i]).mag2() < (s_tolerance * s_tolerance))
        return true;
    return false;
  }
}

const std::string& MaterialAccountingGroup::name ( void  ) const

inline

get the layer name

Definition at line 145 of file MaterialAccountingGroup.h.

References m_name.

Referenced by cuy.divideElement::__init__(), cuy.plotElement::__init__(), cuy.additionElement::__init__(), cuy.superimposeElement::__init__(), cuy.graphElement::__init__(), config.CFG::__str__(), TrackingMaterialAnalyser::saveParameters(), and TrackingMaterialAnalyser::saveXml().

  {
    return m_name;
  }

MaterialAccountingGroup& MaterialAccountingGroup::operator= ( const MaterialAccountingGroup &  layer )

private

stop default assignment operator

void MaterialAccountingGroup::savePlot ( TH1F *  plot, const std::string &  name  )

private

Definition at line 135 of file MaterialAccountingGroup.cc.

References svgfig::canvas(), and m_file.

Referenced by savePlots().

{
  TCanvas canvas(name.c_str(), plot->GetTitle(), 1280, 1024);
  plot->SetFillColor(15);       // grey
  plot->SetLineColor(1);        // black
  plot->Draw("c e");
  canvas.GetFrame()->SetFillColor(kWhite);
  canvas.Draw();
  canvas.SaveAs((name + ".png").c_str(), "");

  // store te plot into m_file
  plot->SetDirectory(m_file);
}

void MaterialAccountingGroup::savePlot ( TProfile *  plot, float  average, const std::string &  name  )

private

Definition at line 149 of file MaterialAccountingGroup.cc.

References svgfig::canvas(), geometryCSVtoXML::line, and m_file.

{
  // Nota Bene:
  // these "line" plots are not deleted explicitly since
  //   - deleting them before saving them to a TFile will not save them
  //   - deleting them after the TFile they're stored into results in a SEGV
  // ROOT is probably "taking care" (read: messing things up) somehow...
  TH1F * line = new TH1F((name + "_par").c_str(), "Parametrization", 1, plot->GetXaxis()->GetXmin(), plot->GetXaxis()->GetXmax());
  line->SetBinContent(1, average);

  TCanvas canvas(name.c_str(), plot->GetTitle(), 1280, 1024);
  plot->SetFillColor(15);       // grey
  plot->SetLineColor(1);        // black
  plot->SetLineWidth(2);
  plot->Draw("c e6");
  line->SetLineColor(2);        // red
  line->SetLineWidth(2);
  line->Draw("same");
  canvas.GetFrame()->SetFillColor(kWhite);
  canvas.Draw();
  canvas.SaveAs((name + ".png").c_str(), "");

  // store te plots into m_file
  plot->SetDirectory(m_file);
  line->SetDirectory(m_file);
}

void MaterialAccountingGroup::savePlots

(

void

)

save the plots

Definition at line 188 of file MaterialAccountingGroup.cc.

References averageEnergyLoss(), averageRadiationLengths(), m_dedx_spectrum, m_dedx_vs_eta, m_dedx_vs_r, m_dedx_vs_z, m_file, m_name, m_radlen_spectrum, m_radlen_vs_eta, m_radlen_vs_r, m_radlen_vs_z, and savePlot().

Referenced by TrackingMaterialAnalyser::saveLayerPlots().

{
  m_file = new TFile((m_name + ".root").c_str(), "RECREATE");
  savePlot(m_dedx_spectrum,   m_name + "_dedx_spectrum");
  savePlot(m_radlen_spectrum, m_name + "_radlen_spectrum");
  savePlot(m_dedx_vs_eta,     averageEnergyLoss(),       m_name + "_dedx_vs_eta");
  savePlot(m_dedx_vs_z,       averageEnergyLoss(),       m_name + "_dedx_vs_z");
  savePlot(m_dedx_vs_r,       averageEnergyLoss(),       m_name + "_dedx_vs_r");
  savePlot(m_radlen_vs_eta,   averageRadiationLengths(), m_name + "_radlen_vs_eta");
  savePlot(m_radlen_vs_z,     averageRadiationLengths(), m_name + "_radlen_vs_z");
  savePlot(m_radlen_vs_r,     averageRadiationLengths(), m_name + "_radlen_vs_r");
  m_file->Write();
  m_file->Close();

  delete m_file;
}

double MaterialAccountingGroup::sigmaEnergyLoss ( void  ) const

inline

return the sigma of the normalized energy loss density factor for Bethe-Bloch

Definition at line 133 of file MaterialAccountingGroup.h.

References averageEnergyLoss(), MaterialAccountingStep::energyLoss(), m_errors, m_tracks, and mathSSE::sqrt().

Referenced by TrackingMaterialAnalyser::saveParameters().

  {
    return m_tracks ? std::sqrt(m_errors.energyLoss() / m_tracks - averageEnergyLoss()*averageEnergyLoss()) : 0.;
  }

double MaterialAccountingGroup::sigmaLength ( void  ) const

inline

return the sigma of the normalized layer thickness

Definition at line 121 of file MaterialAccountingGroup.h.

References averageLength(), MaterialAccountingStep::length(), m_errors, m_tracks, and mathSSE::sqrt().

Referenced by TrackingMaterialAnalyser::saveParameters().

  {
    return m_tracks ? std::sqrt(m_errors.length() / m_tracks - averageLength()*averageLength()) : 0.;
  }

double MaterialAccountingGroup::sigmaRadiationLengths ( void  ) const

inline

return the sigma of the normalized number of radiation lengths

Definition at line 127 of file MaterialAccountingGroup.h.

References averageRadiationLengths(), m_errors, m_tracks, MaterialAccountingStep::radiationLengths(), and mathSSE::sqrt().

Referenced by TrackingMaterialAnalyser::saveParameters().

  {
    return m_tracks ? std::sqrt(m_errors.radiationLengths() / m_tracks - averageRadiationLengths()*averageRadiationLengths()) : 0.;
  }

unsigned int MaterialAccountingGroup::tracks ( void  ) const

inline

return the number of tracks that hit this layer

Definition at line 139 of file MaterialAccountingGroup.h.

References m_tracks.

Referenced by TrackingMaterialAnalyser::saveParameters().

  {
    return m_tracks;
  }

Member Data Documentation

MaterialAccountingStep MaterialAccountingGroup::m_accounting

private

Definition at line 163 of file MaterialAccountingGroup.h.

Referenced by average(), averageEnergyLoss(), averageLength(), averageRadiationLengths(), and endOfTrack().

BoundingBox MaterialAccountingGroup::m_boundingbox

private

Definition at line 162 of file MaterialAccountingGroup.h.

Referenced by info(), inside(), and MaterialAccountingGroup().

MaterialAccountingStep MaterialAccountingGroup::m_buffer

private

Definition at line 167 of file MaterialAccountingGroup.h.

Referenced by addDetector(), and endOfTrack().

bool MaterialAccountingGroup::m_counted

private

Definition at line 166 of file MaterialAccountingGroup.h.

Referenced by addDetector(), and endOfTrack().

TH1F* MaterialAccountingGroup::m_dedx_spectrum

private

Definition at line 170 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

TProfile* MaterialAccountingGroup::m_dedx_vs_eta

private

Definition at line 173 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

TProfile* MaterialAccountingGroup::m_dedx_vs_r

private

Definition at line 175 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

TProfile* MaterialAccountingGroup::m_dedx_vs_z

private

Definition at line 174 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

std::vector<GlobalPoint> MaterialAccountingGroup::m_elements

private

Definition at line 161 of file MaterialAccountingGroup.h.

Referenced by info(), inside(), and MaterialAccountingGroup().

MaterialAccountingStep MaterialAccountingGroup::m_errors

private

Definition at line 164 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), sigmaEnergyLoss(), sigmaLength(), and sigmaRadiationLengths().

TFile* MaterialAccountingGroup::m_file

mutableprivate

Definition at line 181 of file MaterialAccountingGroup.h.

Referenced by savePlot(), and savePlots().

std::string MaterialAccountingGroup::m_name

private

Definition at line 160 of file MaterialAccountingGroup.h.

Referenced by info(), MaterialAccountingGroup(), name(), and savePlots().

TH1F* MaterialAccountingGroup::m_radlen_spectrum

private

Definition at line 171 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

TProfile* MaterialAccountingGroup::m_radlen_vs_eta

private

Definition at line 176 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

TProfile* MaterialAccountingGroup::m_radlen_vs_r

private

Definition at line 178 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

TProfile* MaterialAccountingGroup::m_radlen_vs_z

private

Definition at line 177 of file MaterialAccountingGroup.h.

Referenced by endOfTrack(), MaterialAccountingGroup(), savePlots(), and ~MaterialAccountingGroup().

unsigned int MaterialAccountingGroup::m_tracks

private

Definition at line 165 of file MaterialAccountingGroup.h.

Referenced by average(), averageEnergyLoss(), averageLength(), averageRadiationLengths(), endOfTrack(), sigmaEnergyLoss(), sigmaLength(), sigmaRadiationLengths(), and tracks().

double const MaterialAccountingGroup::s_tolerance = 0.01

staticprivate

Definition at line 184 of file MaterialAccountingGroup.h.

Referenced by inside(), and MaterialAccountingGroup().