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//
// The implementation of the PixelResolutinHistograms.cc class. Please
// look at PixelResolutionHistograms.h header file for the interface.
//
//------------------------------------------------------------------------------
// The switch, undefined in CMSSW release, and defined by standalone compilation script:
#ifdef SI_PIXEL_TEMPLATE_STANDALONE
//
//--- Stand-alone: Include a the header file from the local directory, as well as
// dummy implementations of SimpleHistogramGenerator, LogInfo, LogError and LogDebug...
//
#include "PixelResolutionHistograms.h"
//
class TH1F;
class TH2F;
class SimpleHistogramGenerator {
public:
SimpleHistogramGenerator(TH1F* hist) : hist_(hist) {}
private:
TH1F* hist_; // we don't own it
};
#define LOGDEBUG std::cout
#define LOGERROR std::cout
#define LOGINFO std::cout
//
#else
//--- We're inside a CMSSW release: Include the real thing.
//
#include "FastSimulation/TrackingRecHitProducer/interface/PixelResolutionHistograms.h"
#include "FastSimulation/Utilities/interface/RandomEngineAndDistribution.h"
#include "FastSimulation/Utilities/interface/SimpleHistogramGenerator.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
//
#define LOGDEBUG LogDebug("")
#define LOGERROR edm::LogError("Error")
#define LOGINFO edm::LogInfo("Info")
//
#endif
// Generic C stuff
#include <cmath>
#include <iostream>
#include <string>
// ROOT
#include <TFile.h>
#include <TH1F.h>
#include <TH2F.h>
// Global definitions
const float cmtomicron = 10000.0;
//------------------------------------------------------------------------------
// Constructor: Books the FastSim Histograms, given the input parameters
// which are provided as arguments. These variables are then const inside
// the class. (That is, once we make the histograms, we can't change the
// definition of the binning.)
//------------------------------------------------------------------------------
PixelResolutionHistograms::PixelResolutionHistograms(std::string filename, // ROOT file for histograms
std::string rootdir, // Subdirectory in the file, "" if none
std::string descTitle, // Descriptive title
unsigned int detType, // Where we are... (&&& do we need this?)
double cotbetaBinWidth,
double cotbetaLowEdge,
int cotbetaBins,
double cotalphaBinWidth,
double cotalphaLowEdge,
int cotalphaBins) //,
//int qbinWidth,
//int qbins )
: weOwnHistograms_(true), // we'll be making some histos
detType_(detType),
cotbetaBinWidth_(cotbetaBinWidth),
cotbetaLowEdge_(cotbetaLowEdge),
cotbetaBins_(cotbetaBins),
cotalphaBinWidth_(cotalphaBinWidth),
cotalphaLowEdge_(cotalphaLowEdge),
cotalphaBins_(cotalphaBins),
qbinWidth_(1),
qbins_(4),
binningHisto_(nullptr),
resMultiPixelXHist_(),
resSinglePixelXHist_(), // all to nullptr
resMultiPixelYHist_(),
resSinglePixelYHist_(), // all to nullptr
qbinHist_(), // all to nullptr
file_(nullptr),
status_(0),
resMultiPixelXGen_(),
resSinglePixelXGen_(),
resMultiPixelYGen_(),
resSinglePixelYGen_(),
qbinGen_() {
file_ = std::make_unique<TFile>(filename.c_str(), "RECREATE");
//Resolution binning
// const double cotbetaBinWidth = 1.0;
// const double cotbetaLowEdge = -11.5 ;
// const int cotbetaBins = 23;
// const double cotalphaBinWidth = 0.08 ;
// const double cotalphaLowEdge = -0.36 ;
// const int cotalphaBins = 9;
// const int qbinWidth = 1;
// const int qbins = 4;
// Dummy 2D histogram to store binning:
binningHisto_ = new TH2F("ResHistoBinning",
descTitle.c_str(),
cotbetaBins,
cotbetaLowEdge,
cotbetaLowEdge + cotbetaBins * cotbetaBinWidth,
cotalphaBins,
cotalphaLowEdge,
cotalphaLowEdge + cotalphaBins * cotalphaBinWidth);
// Store detType in the underflow bin
binningHisto_->SetBinContent(0, 0, detType_);
// All other histograms:
Char_t histo[200];
Char_t title[200];
//
//--- Histograms for clusters with multiple pixels hit in a given direction.
//
for (int ii = 0; ii < cotbetaBins_; ii++) {
for (int jj = 0; jj < cotalphaBins_; jj++) {
for (int kk = 0; kk < qbins_; kk++) {
//
sprintf(histo, "hx%d1%02d%d%d", detType_, ii + 1, jj + 1, kk + 1); //information of bits of histogram names
//--- First bit 1/0 barrel/forward, second 1/0 multi/single, cotbeta, cotalpha, qbins
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f qbin %d npixel>1 X",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_,
kk + 1);
//
resMultiPixelXHist_[ii][jj][kk] = new TH1F(histo, title, 1000, -0.05, 0.05);
sprintf(histo, "hy%d1%02d%d%d", detType_, ii + 1, jj + 1, kk + 1);
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f qbin %d npixel>1 Y",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_,
kk + 1);
//
resMultiPixelYHist_[ii][jj][kk] = new TH1F(histo, title, 1000, -0.05, 0.05);
}
}
}
//
//--- Histograms for clusters where only a single pixel was hit in a given direction.
//
for (int ii = 0; ii < cotbetaBins_; ii++) {
for (int jj = 0; jj < cotalphaBins_; jj++) {
sprintf(histo, "hx%d0%02d%d", detType_, ii + 1, jj + 1); //information of bits of histogram names
//first bit 1/0 barrel/forward, second 1/0 multi/single, cotbeta, cotalpha
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f npixel=1 X",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_);
//
resSinglePixelXHist_[ii][jj] = new TH1F(histo, title, 1000, -0.05, 0.05);
sprintf(histo, "hy%d0%02d%d", detType_, ii + 1, jj + 1);
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f npixel=1 Y",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_);
//
resSinglePixelYHist_[ii][jj] = new TH1F(histo, title, 1000, -0.05, 0.05);
sprintf(histo, "hqbin%d%02d%d", detType_, ii + 1, jj + 1);
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f qbin",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_);
//
qbinHist_[ii][jj] = new TH1F(histo, title, 4, -0.49, 3.51);
}
}
}
//------------------------------------------------------------------------------
// Another constructor: load the histograms from one file.
// filename = full path to filename
// rootdir = ROOT directory inside the file
//
// The other parameters are the same (needed later) and must correspond
// to the histograms we are loading from the file.
//------------------------------------------------------------------------------
PixelResolutionHistograms::PixelResolutionHistograms(std::string filename,
std::string rootdir,
int detType,
bool ignore_multi,
bool ignore_single,
bool ignore_qBin)
: weOwnHistograms_(false), // resolution histograms are owned by the ROOT file
detType_(-1),
cotbetaBinWidth_(0),
cotbetaLowEdge_(0),
cotbetaBins_(0),
cotalphaBinWidth_(0),
cotalphaLowEdge_(0),
cotalphaBins_(0),
qbinWidth_(1),
qbins_(4),
binningHisto_(nullptr),
resMultiPixelXHist_(),
resSinglePixelXHist_(), // all to nullptr
resMultiPixelYHist_(),
resSinglePixelYHist_(), // all to nullptr
qbinHist_(), // all to nullptr
file_(nullptr),
status_(0),
resMultiPixelXGen_(),
resSinglePixelXGen_(),
resMultiPixelYGen_(),
resSinglePixelYGen_(),
qbinGen_() {
Char_t histo[200]; // the name of the histogram
Char_t title[200]; // histo title, for debugging and sanity checking (compare inside file)
TH1F* tmphist = nullptr; // cache for histo pointer
//--- Open the file for reading.
file_ = std::make_unique<TFile>(filename.c_str(), "READ");
if (!file_) {
status_ = 1;
LOGERROR << "PixelResolutionHistograms:: Error, file " << filename << " not found.";
return; // PixelTemplateSmearerBase will throw an exception upon our return.
}
//--- The dummy 2D histogram with the binning of cot\beta and cot\alpha:
binningHisto_ = (TH2F*)file_->Get(Form("%s%s", rootdir.c_str(), "ResHistoBinning"));
if (!binningHisto_) {
status_ = 11;
LOGERROR << "PixelResolutionHistograms:: Error, binning histogrram ResHistoBinning not found.";
return; // PixelTemplateSmearerBase will throw an exception upon our return.
}
if (detType == -1) {
//--- Fish out detType from the underflow bin:
detType_ = binningHisto_->GetBinContent(0, 0);
} else {
detType_ = detType; // constructor's argument overrides what's in ResHistoBinning histogram.
}
//--- Now we fill the binning variables:
cotbetaAxis_ = binningHisto_->GetXaxis();
cotbetaBinWidth_ = binningHisto_->GetXaxis()->GetBinWidth(1); // assume all same width
cotbetaLowEdge_ = binningHisto_->GetXaxis()->GetXmin(); // low edge of the first bin
cotbetaBins_ = binningHisto_->GetXaxis()->GetNbins();
cotalphaAxis_ = binningHisto_->GetYaxis();
cotalphaBinWidth_ = binningHisto_->GetYaxis()->GetBinWidth(1); // assume all same width;
cotalphaLowEdge_ = binningHisto_->GetYaxis()->GetXmin(); // low edge of the first bin;
cotalphaBins_ = binningHisto_->GetYaxis()->GetNbins();
if (!ignore_multi) {
//
//--- Histograms for clusters with multiple pixels hit in a given direction.
//
for (int ii = 0; ii < cotbetaBins_; ii++) {
for (int jj = 0; jj < cotalphaBins_; jj++) {
for (int kk = 0; kk < qbins_; kk++) {
//
sprintf(histo, "hx%d1%02d%d%d", detType_, ii + 1, jj + 1, kk + 1); //information of bits of histogram names
//--- First bit 1/0 barrel/forward, second 1/0 multi/single, cotbeta, cotalpha, qbins
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f qbin %d npixel>1 X",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_,
kk + 1);
//
tmphist = (TH1F*)file_->Get(Form("%s%s", rootdir.c_str(), histo));
if (!tmphist) {
status_ = 2;
LOGERROR << "Failed to find histogram=" << std::string(histo);
return;
}
LOGDEBUG << "Found histo " << std::string(histo) << " with title = " << std::string(tmphist->GetTitle())
<< std::endl;
if (tmphist->GetEntries() < 5) {
LOGINFO << "Histogram " << std::string(histo) << " has only " << tmphist->GetEntries()
<< " entries. Trouble ahead." << std::endl;
}
resMultiPixelXHist_[ii][jj][kk] = tmphist;
resMultiPixelXGen_[ii][jj][kk] = new SimpleHistogramGenerator(tmphist);
sprintf(histo, "hy%d1%02d%d%d", detType_, ii + 1, jj + 1, kk + 1);
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f qbin %d npixel>1 Y",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_,
kk + 1);
//
tmphist = (TH1F*)file_->Get(Form("%s%s", rootdir.c_str(), histo));
if (!tmphist) {
status_ = 3;
LOGERROR << "Failed to find histogram=" << std::string(histo);
return;
}
LOGDEBUG << "Found histo " << std::string(histo) << " with title = " << std::string(tmphist->GetTitle())
<< std::endl;
if (tmphist->GetEntries() < 5) {
LOGINFO << "Histogram " << std::string(histo) << " has only " << tmphist->GetEntries()
<< " entries. Trouble ahead." << std::endl;
}
resMultiPixelYHist_[ii][jj][kk] = tmphist;
resMultiPixelYGen_[ii][jj][kk] = new SimpleHistogramGenerator(tmphist);
}
}
}
//
} // if (not ignore multi)
//
//--- Histograms for clusters where only a single pixel was hit in a given direction.
//
for (int ii = 0; ii < cotbetaBins_; ii++) {
for (int jj = 0; jj < cotalphaBins_; jj++) {
//--- Single pixel, along X.
//
sprintf(histo, "hx%d0%02d%d", detType_, ii + 1, jj + 1); //information of bits of histogram names
//--- First bit 1/0 barrel/forward, second 1/0 multi/single, cotbeta, cotalpha
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f npixel=1 X",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_);
//
tmphist = (TH1F*)file_->Get(Form("%s%s", rootdir.c_str(), histo));
if (!tmphist) {
if (!ignore_single) {
LOGERROR << "Failed to find histogram=" << std::string(histo);
status_ = 4;
return;
}
} else {
LOGDEBUG << "Found histo " << std::string(histo) << " with title = " << std::string(tmphist->GetTitle())
<< std::endl;
LOGDEBUG << "Found histo with title = " << std::string(tmphist->GetTitle()) << std::endl;
if (tmphist->GetEntries() < 5) {
LOGINFO << "Histogram " << std::string(histo) << " has only " << tmphist->GetEntries()
<< " entries. Trouble ahead." << std::endl;
}
resSinglePixelXHist_[ii][jj] = tmphist;
resSinglePixelXGen_[ii][jj] = new SimpleHistogramGenerator(tmphist);
}
//--- Single pixel, along Y.
//
sprintf(histo, "hy%d0%02d%d", detType_, ii + 1, jj + 1);
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f npixel=1 Y",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_);
//
tmphist = (TH1F*)file_->Get(Form("%s%s", rootdir.c_str(), histo));
if (!tmphist) {
if (!ignore_single) {
LOGERROR << "Failed to find histogram=" << std::string(histo);
status_ = 5;
return;
}
} else {
LOGDEBUG << "Found histo " << std::string(histo) << " with title = " << std::string(tmphist->GetTitle())
<< std::endl;
if (tmphist->GetEntries() < 5) {
LOGINFO << "Histogram " << std::string(histo) << " has only " << tmphist->GetEntries()
<< " entries. Trouble ahead." << std::endl;
}
resSinglePixelYHist_[ii][jj] = tmphist;
resSinglePixelYGen_[ii][jj] = new SimpleHistogramGenerator(tmphist);
}
//--- qBin distribution, for this (cotbeta, cotalpha) bin.
//
sprintf(histo, "hqbin%d%02d%d", detType_, ii + 1, jj + 1);
sprintf(title,
"cotbeta %.1f-%.1f cotalpha %.2f-%.2f qbin",
cotbetaLowEdge_ + ii * cotbetaBinWidth_,
cotbetaLowEdge_ + (ii + 1) * cotbetaBinWidth_,
cotalphaLowEdge_ + jj * cotalphaBinWidth_,
cotalphaLowEdge_ + (jj + 1) * cotalphaBinWidth_);
//
tmphist = (TH1F*)file_->Get(Form("%s%s", rootdir.c_str(), histo));
if (!tmphist) {
if (!ignore_qBin) {
LOGERROR << "Failed to find histogram=" << std::string(histo);
status_ = 6;
return;
}
} else {
LOGDEBUG << "Found histo " << std::string(histo) << " with title = " << std::string(tmphist->GetTitle())
<< std::endl;
if (tmphist->GetEntries() < 5) {
LOGINFO << "Histogram " << std::string(histo) << " has only " << tmphist->GetEntries()
<< " entries. Trouble ahead." << std::endl;
}
qbinHist_[ii][jj] = tmphist;
qbinGen_[ii][jj] = new SimpleHistogramGenerator(tmphist);
}
}
}
}
//------------------------------------------------------------------------------
// Destructor. Use file_ pointer to tell whether we loaded the histograms
// from a file (and do not own them), or we built them ourselves and thus need
// to delete them.
//------------------------------------------------------------------------------
PixelResolutionHistograms::~PixelResolutionHistograms() {
//--- Delete histograms, but only if we own them. If
//--- they came from a file, let them be.
//
if (!weOwnHistograms_) {
//--- Read the histograms from the TFile, the file will take care of them.
file_->Close();
/// delete file_ ; // no need to delete if unique_ptr<>
/// file_ = 0;
} else {
//--- We made the histograms, so first write them inthe output ROOT file and close it.
LOGINFO << "PixelResHistoStore: Writing the histograms to the output file. " // << filename
<< std::endl;
file_->Write();
file_->Close();
// ROOT file has the ownership, and once the file is closed,
// all of these guys are deleted. So, we don't need to do anything.
} // else
//--- Delete FastSim generators. (It's safe to delete a nullptr.)
for (int ii = 0; ii < cotbetaBins_; ii++) {
for (int jj = 0; jj < cotalphaBins_; jj++) {
for (int kk = 0; kk < qbins_; kk++) {
delete resMultiPixelXGen_[ii][jj][kk];
delete resMultiPixelYGen_[ii][jj][kk];
}
}
}
for (int ii = 0; ii < cotbetaBins_; ii++) {
for (int jj = 0; jj < cotalphaBins_; jj++) {
delete resSinglePixelXGen_[ii][jj];
delete resSinglePixelYGen_[ii][jj];
delete qbinGen_[ii][jj];
}
}
}
//------------------------------------------------------------------------------
// Fills the appropriate FastSim histograms.
// Returns 0 if the relevant histogram(s) were found and filled, 1 if not.
//------------------------------------------------------------------------------
int PixelResolutionHistograms::Fill(
double dx, double dy, double cotalpha, double cotbeta, int qbin, int nxpix, int nypix) {
int icotalpha, icotbeta, iqbin;
icotalpha = (int)floor((cotalpha - cotalphaLowEdge_) / cotalphaBinWidth_);
icotbeta = (int)floor((cotbeta - cotbetaLowEdge_) / cotbetaBinWidth_);
iqbin = qbin > 2 ? 3 : qbin;
if (icotalpha >= 0 && icotalpha < cotalphaBins_ && icotbeta >= 0 && icotbeta < cotbetaBins_) {
qbinHist_[icotbeta][icotalpha]->Fill((double)iqbin);
if (nxpix == 1)
resSinglePixelXHist_[icotbeta][icotalpha]->Fill(dx / cmtomicron);
else
resMultiPixelXHist_[icotbeta][icotalpha][iqbin]->Fill(dx / cmtomicron);
if (nypix == 1)
resSinglePixelYHist_[icotbeta][icotalpha]->Fill(dy / cmtomicron);
else
resMultiPixelYHist_[icotbeta][icotalpha][iqbin]->Fill(dy / cmtomicron);
}
return 0;
}
//------------------------------------------------------------------------------
// Return the histogram generator for resolution in X. A generator contains
// both the histogram and knows how to throw a random number off it. It is
// called from FastSim (from PixelTemplateSmearerBase).
// If cotalpha or cotbeta are outside of the range, return the end of the range.
//------------------------------------------------------------------------------
const SimpleHistogramGenerator* PixelResolutionHistograms::getGeneratorX(double cotalpha,
double cotbeta,
int qbin,
bool single) {
int icotalpha, icotbeta, iqbin;
icotalpha = (int)floor((cotalpha - cotalphaLowEdge_) / cotalphaBinWidth_);
icotbeta = (int)floor((cotbeta - cotbetaLowEdge_) / cotbetaBinWidth_);
iqbin = qbin > 2 ? 3 : qbin; // if (qbin>2) then = 3, else return qbin
//
//if( icotalpha >= 0 && icotalpha < cotalphaBins_ && icotbeta >= 0 && icotbeta < cotbetaBins_ ) {
if (icotalpha < 0)
icotalpha = 0;
if (icotalpha >= cotalphaBins_)
icotalpha = cotalphaBins_ - 1;
if (icotbeta < 0)
icotbeta = 0;
if (icotbeta >= cotbetaBins_)
icotbeta = cotbetaBins_ - 1;
// At this point we are sure to return *some bin* from the 3D histogram
if (single)
return resSinglePixelXGen_[icotbeta][icotalpha];
else
return resMultiPixelXGen_[icotbeta][icotalpha][iqbin];
// }
//else
//return nullptr;
}
//------------------------------------------------------------------------------
// Return the histogram generator for resolution in Y. A generator contains
// both the histogram and knows how to throw a random number off it. It is
// called from FastSim (from PixelTemplateSmearerBase).
// If cotalpha or cotbeta are outside of the range, return the end of the range.
//------------------------------------------------------------------------------
const SimpleHistogramGenerator* PixelResolutionHistograms::getGeneratorY(double cotalpha,
double cotbeta,
int qbin,
bool single) {
int icotalpha, icotbeta, iqbin;
icotalpha = (int)floor((cotalpha - cotalphaLowEdge_) / cotalphaBinWidth_);
icotbeta = (int)floor((cotbeta - cotbetaLowEdge_) / cotbetaBinWidth_);
iqbin = qbin > 2 ? 3 : qbin; // if (qbin>2) then = 3, else return qbin
//
//if( icotalpha >= 0 && icotalpha < cotalphaBins_ && icotbeta >= 0 && icotbeta < cotbetaBins_ ) {
if (icotalpha < 0)
icotalpha = 0;
if (icotalpha >= cotalphaBins_)
icotalpha = cotalphaBins_ - 1;
if (icotbeta < 0)
icotbeta = 0;
if (icotbeta >= cotbetaBins_)
icotbeta = cotbetaBins_ - 1;
// At this point we are sure to return *some bin* from the 3D histogram
if (single)
return resSinglePixelYGen_[icotbeta][icotalpha];
else
return resMultiPixelYGen_[icotbeta][icotalpha][iqbin];
//}
//else
//return nullptr;
}
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