Inheritance diagram for reco_tool::CandHitDerivative:

Public Member Functions
	CandHitDerivative (const fhicl::ParameterSet &pset)

	~CandHitDerivative ()

void	configure (const fhicl::ParameterSet &pset) override

void	findHitCandidates (const Waveform &, size_t, size_t, size_t, HitCandidateVec &) const override

void	MergeHitCandidates (const Waveform &, const HitCandidateVec &, MergeHitCandidateVec &) const override

Private Types
using	HitCandidate_t = struct HitCandidate{size_t startTick

using	HitCandidateVec = std::vector< HitCandidate_t >

using	MergeHitCandidateVec = std::vector< HitCandidateVec >

using	Waveform = std::vector< float >

Private Member Functions
void	findHitCandidates (Waveform::const_iterator, Waveform::const_iterator, size_t, int, float, HitCandidateVec &) const

Waveform::const_iterator	findNearestMax (Waveform::const_iterator, Waveform::const_iterator) const

Waveform::const_iterator	findNearestMin (Waveform::const_iterator, Waveform::const_iterator) const

Waveform::const_iterator	findStartTick (Waveform::const_iterator, Waveform::const_iterator) const

Waveform::const_iterator	findStopTick (Waveform::const_iterator, Waveform::const_iterator) const

Private Attributes
size_t	fPlane

int	fMinDeltaTicks

int	fMaxDeltaTicks

float	fMinDeltaPeaks

float	fMinHitHeight

size_t	fNumInterveningTicks

bool	fOutputHistograms

art::TFileDirectory *	fHistDirectory

TH1F *	fDStopStartHist

TH1F *	fDMaxTickMinTickHist

TH1F *	fDMaxDerivMinDerivHist

std::map< size_t, int >	fChannelCntMap

std::unique_ptr< reco_tool::IWaveformTool >	fWaveformTool

const geo::GeometryCore *	fGeometry = lar::providerFrom<geo::Geometry>()

size_t	stopTick

size_t	maxTick

size_t	minTick

float	maxDerivative

float	minDerivative

float	hitCenter

float	hitSigma

float	hitHeight

Detailed Description

Definition at line 26 of file CandHitDerivative_tool.cc.

Member Typedef Documentation

using reco_tool::ICandidateHitFinder::HitCandidate_t = struct HitCandidate { size_t startTick

inherited

Definition at line 30 of file ICandidateHitFinder.h.

using reco_tool::ICandidateHitFinder::HitCandidateVec = std::vector<HitCandidate_t>

inherited

Definition at line 41 of file ICandidateHitFinder.h.

using reco_tool::ICandidateHitFinder::MergeHitCandidateVec = std::vector<HitCandidateVec>

inherited

Definition at line 42 of file ICandidateHitFinder.h.

using reco_tool::ICandidateHitFinder::Waveform = std::vector<float>

inherited

Definition at line 44 of file ICandidateHitFinder.h.

Constructor & Destructor Documentation

reco_tool::CandHitDerivative::CandHitDerivative ( const fhicl::ParameterSet & pset )

explicit

Definition at line 88 of file CandHitDerivative_tool.cc.

References configure().

 {
     configure(pset);
 }

reco_tool::CandHitDerivative::~CandHitDerivative ( )

Definition at line 93 of file CandHitDerivative_tool.cc.

94 {

95 }

Member Function Documentation

void reco_tool::CandHitDerivative::configure ( const fhicl::ParameterSet & pset )

overridevirtual

Implements reco_tool::ICandidateHitFinder.

Definition at line 97 of file CandHitDerivative_tool.cc.

References dir, fDMaxDerivMinDerivHist, fDMaxTickMinTickHist, fDStopStartHist, fHistDirectory, fMaxDeltaTicks, fMinDeltaPeaks, fMinDeltaTicks, fMinHitHeight, fNumInterveningTicks, fOutputHistograms, fPlane, fWaveformTool, art::ServiceHandle< T, SCOPE >::get(), fhicl::ParameterSet::get(), art::TFileDirectory::make(), and art::TFileDirectory::mkdir().

Referenced by CandHitDerivative().

 {
     // Recover our parameters
     fPlane               = pset.get< size_t >("Plane",               0);
     fMinDeltaTicks       = pset.get< int    >("MinDeltaTicks",       0);
     fMaxDeltaTicks       = pset.get< int    >("MaxDeltaTicks",       30);
     fMinDeltaPeaks       = pset.get< float  >("MinDeltaPeaks",       0.025);
     fMinHitHeight        = pset.get< float  >("MinHitHeight",        2.0);
     fNumInterveningTicks = pset.get< size_t >("NumInterveningTicks", 6);
     fOutputHistograms    = pset.get< bool   >("OutputHistograms",    false);
 
     // Recover the baseline tool
     fWaveformTool = art::make_tool<reco_tool::IWaveformTool> (pset.get<fhicl::ParameterSet>("WaveformAlgs"));
     
     // If asked, define the global histograms
     if (fOutputHistograms)
     {
         // Access ART's TFileService, which will handle creating and writing
         // histograms and n-tuples for us.
         art::ServiceHandle<art::TFileService> tfs;
         
         fHistDirectory = tfs.get();
 
         // Make a directory for these histograms
         art::TFileDirectory dir = fHistDirectory->mkdir(Form("HitPlane_%1zu",fPlane));
         
         fDStopStartHist        = dir.make<TH1F>(Form("DStopStart_%1zu", fPlane), ";Delta Stop/Start;",    200, 0., 200.);
         fDMaxTickMinTickHist   = dir.make<TH1F>(Form("DMaxTMinT_%1zu",  fPlane), ";Delta Max/Min Tick;",  200, 0., 200.);
         fDMaxDerivMinDerivHist = dir.make<TH1F>(Form("DMaxDMinD_%1zu",  fPlane), ";Delta Max/Min Deriv;", 200, 0., 200.);
     }
 
     return;
 }

void reco_tool::CandHitDerivative::findHitCandidates	(	const Waveform &	waveform,
		size_t	roiStartTick,
		size_t	channel,
		size_t	eventCount,
		HitCandidateVec &	hitCandidateVec
	)		const

overridevirtual

Implements reco_tool::ICandidateHitFinder.

Definition at line 131 of file CandHitDerivative_tool.cc.

References geo::GeometryCore::ChannelToWire(), dir, fChannelCntMap, fDMaxDerivMinDerivHist, fDMaxTickMinTickHist, fDStopStartHist, fGeometry, fHistDirectory, fMinDeltaPeaks, fMinDeltaTicks, fOutputHistograms, fWaveformTool, art::TFileDirectory::make(), and art::TFileDirectory::mkdir().

Referenced by findHitCandidates().

 {
     // In this case we want to find hit candidates based on the derivative of of the input waveform
     // We get this from our waveform algs too...
     Waveform rawDerivativeVec;
     Waveform derivativeVec;
 
     fWaveformTool->firstDerivative(waveform, rawDerivativeVec);
     fWaveformTool->triangleSmooth(rawDerivativeVec, derivativeVec);
     
     std::vector<geo::WireID> wids  = fGeometry->ChannelToWire(channel);
     size_t                   plane = wids[0].Plane;
     size_t                   cryo  = wids[0].Cryostat;
     size_t                   tpc   = wids[0].TPC;
     size_t                   wire  = wids[0].Wire;
     
     // Just make sure the input candidate hit vector has been cleared
     hitCandidateVec.clear();
     
     // Now find the hits
     findHitCandidates(derivativeVec.begin(),derivativeVec.end(),roiStartTick,fMinDeltaTicks,fMinDeltaPeaks,hitCandidateVec);
     
     if (hitCandidateVec.empty())
     {
         if (plane == 0)
         {
             std::cout << "** C/T/P: " << cryo << "/" << tpc << "/" << plane << ", wire: " << wire << " has not hits with input size: " << waveform.size() << std::endl;
         }
     }
     
     // Reset the hit height from the input waveform
     for(auto& hitCandidate : hitCandidateVec)
     {
         size_t centerIdx = hitCandidate.hitCenter;
         
         hitCandidate.hitHeight = waveform.at(centerIdx);
     }
     
     // Keep track of histograms if requested
     if (fOutputHistograms)
     {
         // Recover the details...
 //        std::vector<geo::WireID> wids  = fGeometry->ChannelToWire(channel);
 //        size_t                   plane = wids[0].Plane;
 //        size_t                   cryo  = wids[0].Cryostat;
 //        size_t                   tpc   = wids[0].TPC;
 //        size_t                   wire  = wids[0].Wire;
         
         size_t channelCnt = fChannelCntMap[channel]++;
         
         // Make a directory for these histograms
         art::TFileDirectory dir = fHistDirectory->mkdir(Form("HitPlane_%1zu/ev%04zu/c%1zut%1zuwire_%05zu",plane,eventCount,cryo,tpc,wire));
         
         size_t waveformSize = waveform.size();
         int    waveStart    = roiStartTick;
         int    waveStop     = waveStart + waveformSize;
         
         TProfile* waveHist     = dir.make<TProfile>(Form("HWfm_%03zu_ctw%01zu-%01zu-%01zu-%05zu",channelCnt,cryo,tpc,plane,wire), "Waveform",   waveformSize, waveStart, waveStop, -500., 500.);
         TProfile* derivHist    = dir.make<TProfile>(Form("HDer_%03zu_ctw%01zu-%01zu-%01zu-%05zu",channelCnt,cryo,tpc,plane,wire), "Derivative", waveformSize, waveStart, waveStop, -500., 500.);
         TProfile* candHitHist  = dir.make<TProfile>(Form("HCan_%03zu_ctw%01zu-%01zu-%01zu-%05zu",channelCnt,cryo,tpc,plane,wire), "Cand Hits",  waveformSize, waveStart, waveStop, -500., 500.);
         TProfile* maxDerivHist = dir.make<TProfile>(Form("HMax_%03zu_ctw%01zu-%01zu-%01zu-%05zu",channelCnt,cryo,tpc,plane,wire), "Maxima",     waveformSize, waveStart, waveStop, -500., 500.);
         
         // Fill wave/derivative
         for(size_t idx = 0; idx < waveform.size(); idx++)
         {
             waveHist->Fill(roiStartTick + idx, waveform.at(idx));
             derivHist->Fill(roiStartTick + idx, derivativeVec.at(idx));
         }
         
         // Fill hits
         for(const auto& hitCandidate : hitCandidateVec)
         {
             candHitHist->Fill(hitCandidate.hitCenter, hitCandidate.hitHeight);
             maxDerivHist->Fill(hitCandidate.maxTick, hitCandidate.maxDerivative);
             maxDerivHist->Fill(hitCandidate.minTick, hitCandidate.minDerivative);
             
             fDStopStartHist->Fill(hitCandidate.stopTick - hitCandidate.startTick, 1.);
             fDMaxTickMinTickHist->Fill(hitCandidate.minTick - hitCandidate.maxTick, 1.);
             fDMaxDerivMinDerivHist->Fill(hitCandidate.maxDerivative - hitCandidate.minDerivative, 1.);
         }
     }
     
     return;
 }

void reco_tool::CandHitDerivative::findHitCandidates	(	Waveform::const_iterator	startItr,
		Waveform::const_iterator	stopItr,
		size_t	roiStartTick,
		int	dTicksThreshold,
		float	dPeakThreshold,
		HitCandidateVec &	hitCandidateVec
	)		const

private

Definition at line 220 of file CandHitDerivative_tool.cc.

References findHitCandidates(), findNearestMax(), findNearestMin(), findStartTick(), findStopTick(), fMinDeltaPeaks, fMinDeltaTicks, art::left(), art::right(), and reco_tool::ICandidateHitFinder::stopTick.

 {
     // Search for candidate hits...
     // The idea will be to find the largest deviation in the input derivative waveform as the starting point. Depending
     // on if a maximum or minimum, we search forward or backward to find the minimum or maximum that our extremum
     // corresponds to.
     std::pair<Waveform::const_iterator, Waveform::const_iterator> minMaxPair = std::minmax_element(startItr, stopItr);
     
     Waveform::const_iterator maxItr = minMaxPair.second;
     Waveform::const_iterator minItr = minMaxPair.first;
     
     // Use the larger of the two as the starting point and recover the nearest max or min
     if (std::fabs(*maxItr) > std::fabs(*minItr)) minItr = findNearestMin(maxItr, stopItr);
     else                                         maxItr = findNearestMax(minItr,startItr);
 
     int   deltaTicks = std::distance(maxItr,minItr);
     float range      = *maxItr - *minItr;
     
     // At some point small rolling oscillations on the waveform need to be ignored...
     if (deltaTicks >= dTicksThreshold && range > dPeakThreshold)
     {
         // Need to back up to find zero crossing, this will be the starting point of our
         // candidate hit but also the endpoint of the pre sub-waveform we'll search next
         Waveform::const_iterator newEndItr = findStartTick(maxItr, startItr);
         
         int startTick = std::distance(startItr,newEndItr);
         
         // Now need to go forward to again get close to zero, this will then be the end point
         // of our candidate hit and the starting point for the post sub-waveform to search
         Waveform::const_iterator newStartItr = findStopTick(minItr, stopItr);
         
         int stopTick = std::distance(startItr,newStartItr);
         
         // Find hits in the section of the waveform leading up to this candidate hit
         if (startTick > dTicksThreshold)
         {
             // Special handling for merged hits
             if (*(newEndItr-1) > 0.) {dTicksThreshold = 2;              dPeakThreshold = 0.;            }
             else                     {dTicksThreshold = fMinDeltaTicks; dPeakThreshold = fMinDeltaPeaks;}
             
             findHitCandidates(startItr,newEndItr+1,roiStartTick,dTicksThreshold,dPeakThreshold,hitCandidateVec);
         }
         
         // Create a new hit candidate and store away
         HitCandidate_t hitCandidate;
         
         Waveform::const_iterator peakItr = std::min_element(maxItr,minItr,[](const auto& left, const auto& right){return std::fabs(left) < std::fabs(right);});
         
         // Check balance
         if      (2 * std::distance(peakItr,minItr) < std::distance(maxItr,peakItr)) peakItr--;
         else if (2 * std::distance(maxItr,peakItr) < std::distance(peakItr,minItr)) peakItr++;
         
         hitCandidate.startTick     = roiStartTick + startTick;
         hitCandidate.stopTick      = roiStartTick + stopTick;
         hitCandidate.maxTick       = roiStartTick + std::distance(startItr,maxItr);
         hitCandidate.minTick       = roiStartTick + std::distance(startItr,minItr);
         hitCandidate.maxDerivative = maxItr != stopItr ? *maxItr : 0.;
         hitCandidate.minDerivative = minItr != stopItr ? *minItr : 0.;
         hitCandidate.hitCenter     = roiStartTick + std::distance(startItr,peakItr) + 0.5;
         hitCandidate.hitSigma      = 0.5 * float(hitCandidate.minTick - hitCandidate.maxTick);
         hitCandidate.hitHeight     = hitCandidate.hitSigma * (hitCandidate.maxDerivative - hitCandidate.minDerivative) / 1.2130;
         
         hitCandidateVec.push_back(hitCandidate);
         
         // Finally, search the section of the waveform following this candidate for more hits
         if (std::distance(newStartItr,stopItr) > dTicksThreshold)
         {
             // Special handling for merged hits
             if (*(newStartItr+1) < 0.) {dTicksThreshold = 2;              dPeakThreshold = 0.;            }
             else                       {dTicksThreshold = fMinDeltaTicks; dPeakThreshold = fMinDeltaPeaks;}
             
             findHitCandidates(newStartItr,stopItr,roiStartTick + stopTick,dTicksThreshold,dPeakThreshold,hitCandidateVec);
         }
     }
     
     return;
 }

ICandidateHitFinder::Waveform::const_iterator reco_tool::CandHitDerivative::findNearestMax	(	Waveform::const_iterator	minItr,
		Waveform::const_iterator	startItr
	)		const

private

Definition at line 363 of file CandHitDerivative_tool.cc.

Referenced by findHitCandidates().

 {
     // Set the internal loop variable...
     Waveform::const_iterator lastItr = minItr;
     
     // One extra condition to watch for here, make sure we can actually back up!
     if (std::distance(startItr,minItr) > 0)
     {
         // Similar to searching for a maximum, we loop backward over ticks looking for the waveform to start decreasing
         while((lastItr - 1) != startItr)
         {
             if (*(lastItr - 1) < *lastItr) break;
             
             lastItr--;
         }
     }
     
     return lastItr;
 }

ICandidateHitFinder::Waveform::const_iterator reco_tool::CandHitDerivative::findNearestMin	(	Waveform::const_iterator	maxItr,
		Waveform::const_iterator	stopItr
	)		const

private

Definition at line 345 of file CandHitDerivative_tool.cc.

Referenced by findHitCandidates().

 {
     // reset the min iterator and search forward to find the nearest minimum
     Waveform::const_iterator lastItr = maxItr;
 
     // The strategy is simple...
     // We are at a maximum so we search forward until we find the lowest negative point
     while((lastItr + 1) != stopItr)
     {
         if (*(lastItr + 1) > *lastItr) break;
         
         lastItr++;
     }
     
     // The minimum will be the last iterator value...
     return lastItr;
 }

ICandidateHitFinder::Waveform::const_iterator reco_tool::CandHitDerivative::findStartTick	(	Waveform::const_iterator	maxItr,
		Waveform::const_iterator	startItr
	)		const

private

Definition at line 383 of file CandHitDerivative_tool.cc.

Referenced by findHitCandidates().

 {
     Waveform::const_iterator lastItr = maxItr;
     
     // If we can't back up then there is nothing to do
     if (std::distance(startItr,lastItr) > 0)
     {
         // In theory, we are starting at a maximum and want to find the "start" of the candidate peak
         // Ideally we would look to search backward to the point where the (derivative) waveform crosses zero again.
         // However, the complication is that we need to watch for the case where two peaks are merged together and
         // we might run through another peak before crossing zero...
         // So... loop until we hit the startItr...
         Waveform::const_iterator loopItr = lastItr - 1;
         
         while(loopItr != startItr)
         {
             // Ideal world case, we cross zero... but we might encounter a minimum... or an inflection point
             if (*loopItr < 0. || !(*loopItr < *lastItr)) break;
         
             lastItr = loopItr--;
         }
     }
     else lastItr = startItr;
     
     return lastItr;
 }

ICandidateHitFinder::Waveform::const_iterator reco_tool::CandHitDerivative::findStopTick	(	Waveform::const_iterator	minItr,
		Waveform::const_iterator	stopItr
	)		const

private

Definition at line 410 of file CandHitDerivative_tool.cc.

References DEFINE_ART_CLASS_TOOL.

Referenced by findHitCandidates().

 {
     Waveform::const_iterator lastItr = minItr;
     
     // If we can't go forward then there is really nothing to do
     if (std::distance(minItr,stopItr) > 1)
     {
         // Pretty much the same strategy as for finding the start tick...
         Waveform::const_iterator loopItr = lastItr + 1;
     
         while(loopItr != stopItr)
         {
             // Ideal case that we have crossed zero coming from a minimum... but watch for a maximum as well
             if (*loopItr > 0. || !(*loopItr > *lastItr)) break;
             
             lastItr = loopItr++;
         }
     }
     
     return lastItr;
 }

void reco_tool::CandHitDerivative::MergeHitCandidates	(	const Waveform &	signalVec,
		const HitCandidateVec &	hitCandidateVec,
		MergeHitCandidateVec &	mergedHitsVec
	)		const

overridevirtual

Implements reco_tool::ICandidateHitFinder.

Definition at line 303 of file CandHitDerivative_tool.cc.

References fMinHitHeight, and fNumInterveningTicks.

 {
     // If nothing on the input end then nothing to do
     if (hitCandidateVec.empty()) return;
     
     // The idea is to group hits that "touch" so they can be part of common fit, those that
     // don't "touch" are fit independently. So here we build the output vector to achieve that
     // Get a container for the hits...
     HitCandidateVec groupedHitVec;
     
     // Initialize the end of the last hit which we'll set to the first input hit's stop
     size_t lastStopTick = hitCandidateVec.front().stopTick;
     
     // Step through the input hit candidates and group them by proximity
     for(const auto& hitCandidate : hitCandidateVec)
     {
         // Small pulse height hits should not be considered?
         if (hitCandidate.hitHeight > fMinHitHeight)
         {
             // Check condition that we have a new grouping
             if (hitCandidate.startTick > lastStopTick + fNumInterveningTicks && !groupedHitVec.empty())
             {
                 mergedHitsVec.emplace_back(groupedHitVec);
             
                 groupedHitVec.clear();
             }
 
             // Add the current hit to the current group
             groupedHitVec.emplace_back(hitCandidate);
         
             lastStopTick = hitCandidate.stopTick;
         }
     }
     
     // Check end condition
     if (!groupedHitVec.empty()) mergedHitsVec.emplace_back(groupedHitVec);
     
     return;
 }

Member Data Documentation

std::map<size_t,int> reco_tool::CandHitDerivative::fChannelCntMap

mutableprivate

Definition at line 78 of file CandHitDerivative_tool.cc.

Referenced by findHitCandidates().

TH1F* reco_tool::CandHitDerivative::fDMaxDerivMinDerivHist

private

Definition at line 76 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

TH1F* reco_tool::CandHitDerivative::fDMaxTickMinTickHist

private

Definition at line 75 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

TH1F* reco_tool::CandHitDerivative::fDStopStartHist

private

Definition at line 74 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

const geo::GeometryCore* reco_tool::CandHitDerivative::fGeometry = lar::providerFrom<geo::Geometry>()

private

Definition at line 83 of file CandHitDerivative_tool.cc.

Referenced by findHitCandidates().

art::TFileDirectory* reco_tool::CandHitDerivative::fHistDirectory

private

Definition at line 71 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

int reco_tool::CandHitDerivative::fMaxDeltaTicks

private

Definition at line 65 of file CandHitDerivative_tool.cc.

Referenced by configure().

float reco_tool::CandHitDerivative::fMinDeltaPeaks

private

Definition at line 66 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

int reco_tool::CandHitDerivative::fMinDeltaTicks

private

Definition at line 64 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

float reco_tool::CandHitDerivative::fMinHitHeight

private

Definition at line 67 of file CandHitDerivative_tool.cc.

Referenced by configure(), and MergeHitCandidates().

size_t reco_tool::CandHitDerivative::fNumInterveningTicks

private

Definition at line 68 of file CandHitDerivative_tool.cc.

Referenced by configure(), and MergeHitCandidates().

bool reco_tool::CandHitDerivative::fOutputHistograms

private

Definition at line 69 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

size_t reco_tool::CandHitDerivative::fPlane

private

Definition at line 63 of file CandHitDerivative_tool.cc.

Referenced by configure().

std::unique_ptr<reco_tool::IWaveformTool> reco_tool::CandHitDerivative::fWaveformTool

private

Definition at line 81 of file CandHitDerivative_tool.cc.

Referenced by configure(), and findHitCandidates().

float reco_tool::ICandidateHitFinder::hitCenter

inherited

Definition at line 36 of file ICandidateHitFinder.h.

float reco_tool::ICandidateHitFinder::hitHeight

inherited

Definition at line 38 of file ICandidateHitFinder.h.

float reco_tool::ICandidateHitFinder::hitSigma

inherited

Definition at line 37 of file ICandidateHitFinder.h.

float reco_tool::ICandidateHitFinder::maxDerivative

inherited

Definition at line 34 of file ICandidateHitFinder.h.

size_t reco_tool::ICandidateHitFinder::maxTick

inherited

Definition at line 32 of file ICandidateHitFinder.h.

float reco_tool::ICandidateHitFinder::minDerivative

inherited

Definition at line 35 of file ICandidateHitFinder.h.

size_t reco_tool::ICandidateHitFinder::minTick

inherited

Definition at line 33 of file ICandidateHitFinder.h.

size_t reco_tool::ICandidateHitFinder::stopTick

inherited

Definition at line 31 of file ICandidateHitFinder.h.

Referenced by findHitCandidates(), and reco_tool::CandHitMorphological::findHitCandidates().

The documentation for this class was generated from the following file:

larreco/v06_64_02/source/larreco/HitFinder/HitFinderTools/CandHitDerivative_tool.cc

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation