#include <GlobalDetRangeZPhi.h>

Public Types
typedef std::pair< float, float >	Range
Public Member Functions
	GlobalDetRangeZPhi (const BoundPlane &det)
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 GlobalDetRangeZPhi.h.

Member Typedef Documentation

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

Definition at line 14 of file GlobalDetRangeZPhi.h.

Constructor & Destructor Documentation

GlobalDetRangeZPhi::GlobalDetRangeZPhi ( const BoundPlane & det )

Definition at line 11 of file GlobalDetRangeZPhi.cc.

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

                                                               {

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

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

  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;

}