CylinderBuilderFromDet Class Reference

#include <CylinderBuilderFromDet.h>

List of all members.

Public Types
typedef GeomDet	Det
typedef Surface::PositionType	PositionType
typedef Surface::RotationType	RotationType
typedef PositionType::BasicVectorType	Vector
Public Member Functions
BoundCylinder *	build () const
	CylinderBuilderFromDet ()
void	operator() (const Det &det)
BoundCylinder *	operator() (std::vector< const Det * >::const_iterator first, std::vector< const Det * >::const_iterator last) const
Private Attributes
float	rmax
float	rmin
float	zmax
float	zmin

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Detailed Description

Given a container of GeomDets, constructs a cylinder of minimal dimensions that contains all of the Dets completely (all corners etc.) Useful for defining a BarrelDetLayer from a group of DetUnits.

Date:

2007/08/22 16:07:44

Revision:

1.4

Definition at line 20 of file CylinderBuilderFromDet.h.

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Member Typedef Documentation

typedef GeomDet CylinderBuilderFromDet::Det

Definition at line 22 of file CylinderBuilderFromDet.h.

typedef Surface::PositionType CylinderBuilderFromDet::PositionType

Definition at line 23 of file CylinderBuilderFromDet.h.

typedef Surface::RotationType CylinderBuilderFromDet::RotationType

Definition at line 24 of file CylinderBuilderFromDet.h.

typedef PositionType::BasicVectorType CylinderBuilderFromDet::Vector

Definition at line 25 of file CylinderBuilderFromDet.h.

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Constructor & Destructor Documentation

CylinderBuilderFromDet::CylinderBuilderFromDet

(

)

[inline]

Definition at line 27 of file CylinderBuilderFromDet.h.

                           : 
    rmin(std::numeric_limits<float>::max()), 
    rmax(0.0),
    zmin(std::numeric_limits<float>::max()),
    zmax(std::numeric_limits<float>::min()){}

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Member Function Documentation

BoundCylinder * CylinderBuilderFromDet::build

(

)

const

Definition at line 83 of file CylinderBuilderFromDet.cc.

References pos, and PV3DBase< T, PVType, FrameType >::z().

                                                   {
  
  PositionType pos( 0, 0, 0.5*(zmin+zmax));
  RotationType rot;      // only "barrel" orientation supported
  
  return new BoundCylinder( pos, rot, 
                            SimpleCylinderBounds( rmin, rmax, 
                                                  zmin-pos.z(), zmax-pos.z()));
}

BoundCylinder* CylinderBuilderFromDet::operator()	(	std::vector< const Det * >::const_iterator	first,
		std::vector< const Det * >::const_iterator	last
	)		const

void CylinderBuilderFromDet::operator()

(

const Det &

det

)

Definition at line 64 of file CylinderBuilderFromDet.cc.

References BoundSurface::bounds(), max(), min, PV3DBase< T, PVType, FrameType >::perp(), GloballyPositioned< T >::position(), GeomDet::surface(), and Bounds::thickness().

                                                      {
  BoundingBox bb( dynamic_cast<const BoundPlane&>(det.surface()));
  for (int nc=0; nc<8; ++nc) {
    float r = bb[nc].perp();
    float z = bb[nc].z();
    rmin = std::min( rmin, r);
    rmax = std::max( rmax, r);
    zmin = std::min( zmin, z);
    zmax = std::max( zmax, z);
  }
  // in addition to the corners we have to check the middle of the 
  // det +/- thickness/2
  // , since the min  radius for some barrel dets is reached there
  float rdet = det.surface().position().perp();
  float halfThick = det.surface().bounds().thickness() / 2.F;
  rmin = std::min( rmin, rdet-halfThick);
  rmax = std::max( rmax, rdet+halfThick);
}

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Member Data Documentation

float CylinderBuilderFromDet::rmax [private]

Definition at line 42 of file CylinderBuilderFromDet.h.

float CylinderBuilderFromDet::rmin [private]

Definition at line 41 of file CylinderBuilderFromDet.h.

float CylinderBuilderFromDet::zmax [private]

Definition at line 44 of file CylinderBuilderFromDet.h.

float CylinderBuilderFromDet::zmin [private]

Definition at line 43 of file CylinderBuilderFromDet.h.