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#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "Alignment/CommonAlignment/interface/Alignable.h"
#include "Alignment/CommonAlignment/interface/AlignableDetOrUnitPtr.h"
#include "Alignment/CommonAlignment/interface/AlignmentParameters.h"
#include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
#include "Alignment/CommonAlignmentParametrization/interface/CompositeAlignmentDerivativesExtractor.h"
//--------------------------------------------------------------------------------------
CompositeAlignmentDerivativesExtractor::CompositeAlignmentDerivativesExtractor(
const align::Alignables &alignables,
const std::vector<AlignableDet *> &alignableDets,
const std::vector<TrajectoryStateOnSurface> &tsos) {
std::vector<AlignableDetOrUnitPtr> detOrUnits;
detOrUnits.reserve(alignableDets.size());
std::vector<AlignableDet *>::const_iterator it, itEnd;
for (it = alignableDets.begin(), itEnd = alignableDets.end(); it != itEnd; ++it)
detOrUnits.push_back(AlignableDetOrUnitPtr(*it));
extractCurrentAlignment(alignables, detOrUnits, tsos);
}
//--------------------------------------------------------------------------------------
CompositeAlignmentDerivativesExtractor::CompositeAlignmentDerivativesExtractor(
const align::Alignables &alignables,
const std::vector<AlignableDetOrUnitPtr> &alignableDets,
const std::vector<TrajectoryStateOnSurface> &tsos) {
extractCurrentAlignment(alignables, alignableDets, tsos);
}
//--------------------------------------------------------------------------------------
void CompositeAlignmentDerivativesExtractor::extractCurrentAlignment(
const align::Alignables &alignables,
const std::vector<AlignableDetOrUnitPtr> &alignableDets,
const std::vector<TrajectoryStateOnSurface> &tsos) {
// sanity check
if (alignables.size() != alignableDets.size()) {
edm::LogError("CompositeAlignmentDerivativesExtractor")
<< "Inconsistent length of arguments: alignables=" << alignables.size()
<< ", alignableDets=" << alignableDets.size();
return;
}
if (alignables.size() != tsos.size()) {
edm::LogError("CompositeAlignmentDerivativesExtractor")
<< "Inconsistent length of arguments: alignables=" << alignables.size() << ", tsos=" << tsos.size();
return;
}
align::Alignables::const_iterator itAlignable = alignables.begin();
std::vector<AlignableDetOrUnitPtr>::const_iterator itAlignableDet = alignableDets.begin();
std::vector<TrajectoryStateOnSurface>::const_iterator itTsos = tsos.begin();
int nRow = 0;
int nCollumn = 0;
unsigned int nAlignables = 0;
std::vector<AlgebraicMatrix> subDerivatives;
std::vector<AlgebraicVector> subCorrectionTerm;
// get the individual derivatives and correction term and determine the
// dimension
while (itAlignable != alignables.end()) {
// Get the current estimate on the alignment parameters
AlgebraicVector subAlignmentParameters = (*itAlignable)->alignmentParameters()->selectedParameters();
// Get the derivatives or the local coordinates w.r.t. the corresponding
// alignment parameters
AlgebraicMatrix subAlignmentDerivatives =
(*itAlignable)->alignmentParameters()->selectedDerivatives(*itTsos, *itAlignableDet);
subDerivatives.push_back(subAlignmentDerivatives.T());
subCorrectionTerm.push_back(subAlignmentDerivatives.T() * subAlignmentParameters);
nRow += 2;
// check if it is the first occurrence of this Alignable
if (count(alignables.begin(), itAlignable, *itAlignable) == 0) {
// matrix is transposed -> num_row() instead of num_col()
nCollumn += subAlignmentDerivatives.num_row();
nAlignables++;
}
++itAlignable;
++itAlignableDet;
++itTsos;
}
// construct derivatives and correction term with the right dimension
theDerivatives = AlgebraicMatrix(nRow, nCollumn, 0);
theCorrectionTerm = AlgebraicVector(nRow, 0);
if (alignables.size() == nAlignables)
// One hit per alignable
extractWithoutMultipleHits(subCorrectionTerm, subDerivatives);
else
// At least one alignable has two hits
extractWithMultipleHits(subCorrectionTerm, subDerivatives, alignables);
return;
}
//--------------------------------------------------------------------------------------
void CompositeAlignmentDerivativesExtractor::extractWithoutMultipleHits(
const std::vector<AlgebraicVector> &subCorrectionTerm, const std::vector<AlgebraicMatrix> &subDerivatives) {
std::vector<AlgebraicVector>::const_iterator itSubCorrectionTerm = subCorrectionTerm.begin();
std::vector<AlgebraicMatrix>::const_iterator itSubDerivatives = subDerivatives.begin();
int iRow = 1;
int iCollumn = 1;
// Fill in the individual terms
while (itSubCorrectionTerm != subCorrectionTerm.end()) {
theCorrectionTerm.sub(iRow, *itSubCorrectionTerm);
theDerivatives.sub(iRow, iCollumn, *itSubDerivatives);
iRow += 2;
iCollumn += (*itSubDerivatives).num_col();
++itSubCorrectionTerm;
++itSubDerivatives;
}
return;
}
//--------------------------------------------------------------------------------------
void CompositeAlignmentDerivativesExtractor::extractWithMultipleHits(
const std::vector<AlgebraicVector> &subCorrectionTerm,
const std::vector<AlgebraicMatrix> &subDerivatives,
const align::Alignables &alignables) {
std::vector<AlgebraicVector>::const_iterator itSubCorrectionTerm = subCorrectionTerm.begin();
std::vector<AlgebraicMatrix>::const_iterator itSubDerivatives = subDerivatives.begin();
align::Alignables::const_iterator itAlignables = alignables.begin();
align::Alignables::const_iterator itPosition;
align::Alignables::const_iterator itLastPosition;
int iRow = 1;
// Fill in the individual terms
while (itAlignables != alignables.end()) {
theCorrectionTerm.sub(iRow, *itSubCorrectionTerm);
int iCollumn = 1;
int iAlignable = 0;
itLastPosition = find(alignables.begin(), itAlignables, *itAlignables);
for (itPosition = alignables.begin(); itPosition != itLastPosition; ++itPosition) {
if (count(alignables.begin(), itPosition, *itPosition) == 0)
iCollumn += subDerivatives[iAlignable].num_col();
iAlignable++;
}
theDerivatives.sub(iRow, iCollumn, *itSubDerivatives);
iRow += 2;
++itAlignables;
++itSubCorrectionTerm;
++itSubDerivatives;
}
return;
}
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