GlobalDetRodRangeZPhi Class Reference

#include <GlobalDetRodRangeZPhi.h>

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

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

Private Attributes
Range	thePhiRange
Range	theZRange

Detailed Description

Implementation class for PhiZMeasurementEstimator etc.

Definition at line 11 of file GlobalDetRodRangeZPhi.h.

Member Typedef Documentation

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

Definition at line 14 of file GlobalDetRodRangeZPhi.h.

Constructor & Destructor Documentation

GlobalDetRodRangeZPhi::GlobalDetRodRangeZPhi

(

const BoundPlane &

RodPlane

)

Definition at line 10 of file GlobalDetRodRangeZPhi.cc.

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

                                                                     {

  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 19 of file GlobalDetRodRangeZPhi.h.

References thePhiRange.

{ return thePhiRange;}

Range GlobalDetRodRangeZPhi::zRange ( ) const

inline

Definition at line 18 of file GlobalDetRodRangeZPhi.h.

References theZRange.

{ return theZRange;}

Member Data Documentation

Range GlobalDetRodRangeZPhi::thePhiRange

private

Definition at line 23 of file GlobalDetRodRangeZPhi.h.

Referenced by phiRange().

Range GlobalDetRodRangeZPhi::theZRange

private

Definition at line 22 of file GlobalDetRodRangeZPhi.h.

Referenced by zRange().