GlobalDetRodRangeZPhi Class Reference

#include <GlobalDetRodRangeZPhi.h>

Public Types
typedef std::pair< float, float >	Range

Public Member Functions
	GlobalDetRodRangeZPhi (const Plane &RodPlane)
Range	phiRange () const
Range	zRange () const

Private Attributes
Range	thePhiRange
Range	theZRange

Detailed Description

Implementation class for PhiZMeasurementEstimator etc.

Definition at line 12 of file GlobalDetRodRangeZPhi.h.

Member Typedef Documentation

typedef std::pair<float,float> GlobalDetRodRangeZPhi::Range

Definition at line 15 of file GlobalDetRodRangeZPhi.h.

Constructor & Destructor Documentation

GlobalDetRodRangeZPhi::GlobalDetRodRangeZPhi

(

const Plane &

RodPlane

)

Definition at line 10 of file GlobalDetRodRangeZPhi.cc.

References Surface::bounds(), i, Bounds::length(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), phi(), Bounds::thickness(), Surface::toGlobal(), Bounds::width(), SiStripMonitorClusterAlca_cfi::zmax, and SiStripMonitorClusterAlca_cfi::zmin.

                                                                {

  float dx = plane.bounds().width()/2.;
  float dy = plane.bounds().length()/2.;
  float dz = plane.bounds().thickness()/2.;

  // rods may be inverted (actually are in every other layer), so have to find out the 
  // orientation of the local frame
  float deltaZ = (plane.toGlobal( LocalPoint( 0, 0, -dz)).perp() < 
          plane.toGlobal( LocalPoint( 0, 0, dz)).perp() ) ? -dz : dz ;
  

  vector<Surface::GlobalPoint> corners(4);
  corners[0] = plane.toGlobal( LocalPoint( -dx, -dy, deltaZ));
  corners[1] = plane.toGlobal( LocalPoint( -dx,  dy, deltaZ));
  corners[2] = plane.toGlobal( LocalPoint(  dx, -dy, deltaZ));
  corners[3] = plane.toGlobal( LocalPoint(  dx,  dy, deltaZ));

  float phimin = corners[0].phi();  float phimax = phimin;
  float zmin   = corners[0].z();    float zmax   = zmin;
  for ( int i=1; i<4; i++) {
    float phi = corners[i].phi();
    if ( PhiLess()( phi, phimin)) phimin = phi;
    if ( PhiLess()( phimax, phi)) phimax = phi;

    float z = corners[i].z();
    if ( z < zmin) zmin = z;
    if ( z > zmax) zmax = z;
  }

  theZRange.first    = zmin;
  theZRange.second   = zmax;
  thePhiRange.first  = phimin;
  thePhiRange.second = phimax;

}

Member Function Documentation

Range GlobalDetRodRangeZPhi::phiRange ( ) const

inline

Definition at line 20 of file GlobalDetRodRangeZPhi.h.

References thePhiRange.

{ return thePhiRange;}

Range GlobalDetRodRangeZPhi::zRange ( ) const

inline

Definition at line 19 of file GlobalDetRodRangeZPhi.h.

References theZRange.

{ return theZRange;}

Member Data Documentation

Range GlobalDetRodRangeZPhi::thePhiRange

private

Definition at line 24 of file GlobalDetRodRangeZPhi.h.

Referenced by phiRange().

Range GlobalDetRodRangeZPhi::theZRange

private

Definition at line 23 of file GlobalDetRodRangeZPhi.h.

Referenced by zRange().