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#ifndef ALIGNMENT_COMMONALIGNMENT_INTERFACE_ALIGNABLECOMPOSITEBUILDER_H_
#define ALIGNMENT_COMMONALIGNMENT_INTERFACE_ALIGNABLECOMPOSITEBUILDER_H_
// Original Author: Max Stark
// Created: Wed, 10 Feb 2016 14:02:51 CET
// alignment
#include "Alignment/CommonAlignment/interface/AlignableMap.h"
#include "Alignment/CommonAlignment/interface/AlignableComposite.h"
#include "Alignment/CommonAlignment/interface/AlignableIndexer.h"
#include "Alignment/CommonAlignment/interface/AlignmentLevel.h"
#include "Alignment/CommonAlignment/interface/Utilities.h"
class AlignableCompositeBuilder {
//========================== PUBLIC METHODS =================================
public: //===================================================================
AlignableCompositeBuilder(const TrackerTopology*, const TrackerGeometry*, const AlignableIndexer&);
virtual ~AlignableCompositeBuilder() = default;
/// Add all desired AlignmentLevels for a sub-detector to the builder before
/// calling buildAll(), the order matters!
/// Example for PixelBarrel-RunI geometry:
/// -> PXBModule, PXBLadder, TPBLayer, TPBHalfBarrel, TPBBarrel
void addAlignmentLevel(std::unique_ptr<AlignmentLevel> level);
/// Resets the alignment-levels.
void clearAlignmentLevels();
/// Builds all composite Alignables according to the levels added before via
/// addAlignmentLevel(). The Alignables were built from bottom- to the top-
/// hierarchy, e.g. for PixelBarrel-RunI geometry:
/// - PXBLadder (with PXBModule as children)
/// - TPBLayer (with PXBLadder as children)
/// - TPBHalfBarrel (with TPBLayer as children)
/// - TPBBarrel (with TPBHalfBarrel as children)
/// Returns the number of composite Alignables which were built.
unsigned int buildAll(AlignableMap&, bool update = false);
/// Return tracker alignable object ID provider derived from the tracker's geometry
const AlignableObjectId& objectIdProvider() const { return alignableObjectId_; }
//========================= PRIVATE METHODS =================================
private: //==================================================================
/// Builds the components for a given level in the hierarchy.
unsigned int buildLevel(unsigned int parentLevel, AlignableMap&, std::ostringstream&, bool update = false);
/// Calculates the theoretical max. number of components for a given level
/// in the hierarchy.
unsigned int maxNumComponents(unsigned int startLevel) const;
/// Calculates the index of an Alignable within the hierarchy; unique for
/// each component of a given structure-type.
unsigned int getIndexOfStructure(align::ID, unsigned int level) const;
//========================== PRIVATE DATA ===================================
//===========================================================================
// TODO: The AlignableCompositeBuilder is not 'common' as the package
// suggests, because it uses the TrackerTopology. If this class shall
// ever be used to build other kinds of alignables than tracker-
// alignables one has to add/implement something more general than
// the TrackerTopology
const TrackerTopology* trackerTopology_;
const AlignableObjectId alignableObjectId_;
AlignableIndexer alignableIndexer_;
align::AlignmentLevels alignmentLevels_;
};
#endif /* ALIGNMENT_COMMONALIGNMENT_INTERFACE_ALIGNABLECOMPOSITEBUILDER_H_ */
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