GlobalDetRodRangeZPhi Class Reference

#include <GlobalDetRodRangeZPhi.h>

List of all members.

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

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Detailed Description

Implementation class for PhiZMeasurementEstimator etc.

Definition at line 12 of file GlobalDetRodRangeZPhi.h.

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Member Typedef Documentation

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

Definition at line 15 of file GlobalDetRodRangeZPhi.h.

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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, phimax, phimin, 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;

}

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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;}

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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().