#include <GeneralBinFinderInZforGeometricSearchDet.h>

Inheritance diagram for GeneralBinFinderInZforGeometricSearchDet< T >:

Public Member Functions
int	binIndex (T z) const override
	returns an index in the valid range for the bin closest to Z More...

int	binIndex (int i) const override
	returns an index in the valid range More...

T	binPosition (int ind) const override
	the middle of the bin. More...

	GeneralBinFinderInZforGeometricSearchDet ()

	GeneralBinFinderInZforGeometricSearchDet (std::vector< const GeometricSearchDet * >::const_iterator first, std::vector< const GeometricSearchDet * >::const_iterator last)

Public Member Functions inherited from BaseBinFinder< T >
	BaseBinFinder ()

virtual	~BaseBinFinder ()

Private Attributes
std::vector< T >	theBins

std::vector< float >	theBorders

T	theInvZStep = 0

int	theNbins = 0

T	theZOffset = 0

T	theZStep = 0

Detailed Description

template<class T>
class GeneralBinFinderInZforGeometricSearchDet< T >

Definition at line 15 of file GeneralBinFinderInZforGeometricSearchDet.h.

Constructor & Destructor Documentation

template<class T>

GeneralBinFinderInZforGeometricSearchDet< T >::GeneralBinFinderInZforGeometricSearchDet ( )

inline

Definition at line 17 of file GeneralBinFinderInZforGeometricSearchDet.h.

17 {}

template<class T>

GeneralBinFinderInZforGeometricSearchDet< T >::GeneralBinFinderInZforGeometricSearchDet	(	std::vector< const GeometricSearchDet * >::const_iterator	first,
		std::vector< const GeometricSearchDet * >::const_iterator	last
	)

inline

Definition at line 19 of file GeneralBinFinderInZforGeometricSearchDet.h.

       : theNbins(last - first - 1)  // -1!
   {
     theBins.reserve(theNbins);
     theBorders.reserve(theNbins);
     for (auto i = first; i < last - 1; i++) {
       theBins.push_back((**i).position().z());
       theBorders.push_back(((**i).position().z() + (**(i + 1)).position().z()) / 2.);
     }
     assert(theNbins == int(theBorders.size()));
 
     theZOffset = theBorders.front();
     theZStep = (theBorders.back() - theBorders.front()) / (theNbins - 1);
     theInvZStep = 1. / theZStep;
   }

Member Function Documentation

template<class T>

int GeneralBinFinderInZforGeometricSearchDet< T >::binIndex ( T z ) const

inlineoverridevirtual

returns an index in the valid range for the bin closest to Z

Implements BaseBinFinder< T >.

Definition at line 37 of file GeneralBinFinderInZforGeometricSearchDet.h.

Referenced by GeneralBinFinderInZforGeometricSearchDet< float >::binPosition(), and TIBLayer::computeIndexes().

                                    {
     int bin = int((z - theZOffset) * theInvZStep) + 1;
     if (bin <= 0)
       return 0;
     if (bin >= theNbins)
       return theNbins;
 
     // check left border
     if (z < theBorders[bin - 1]) {
       // z is to the left of the left border, the correct bin is left
       for (auto i = bin - 1; i > 0; i--) {
         if (z > theBorders[i - 1])
           return i;
       }
       return 0;
     }
 
     // check right border
     if (z > theBorders[bin]) {
       // z is to the right of the right border, the correct bin is right
       for (int i = bin + 1; i < theNbins; i++) {
         if (z < theBorders[i])
           return i;
       }
       return theNbins;
     }
     // if we arrive here it means that the bin is ok
     return bin;
   }