---

GeneralTrapezoidalPlaneBounds Class Reference

GeneralTrapezoidal detector bounds. More...

#include <DataFormats/GeometrySurface/interface/GeneralTrapezoidalPlaneBounds.h>

Inheritance diagram for GeneralTrapezoidalPlaneBounds:

List of all members.

Public Member Functions
virtual Bounds *	clone () const
	GeneralTrapezoidalPlaneBounds (float be, float te, float ang, float a, float t)
virtual bool	inside (const Local2DPoint &p, const LocalError &err, float scale) const
	Determine if a 2D point is inside the bounds, taking error into account.
virtual bool	inside (const Local3DPoint &p, const LocalError &err, float scale) const
	Determine if a point is inside the bounds, taking error into account.
virtual bool	inside (const Local3DPoint &p) const
	Determine if the point is inside the bounds.
virtual bool	inside (const Local2DPoint &p) const
virtual float	length () const
	"Lenght" of the bounded volume; refer to the concrete class documentation for the specific definition.
virtual const std::vector< float >	parameters () const
virtual float	thickness () const
	"Thickness" of the bound around the surface; refer to the concrete class documentation for the specific definition.
virtual float	width () const
	"width" of the bounds; refer to the concrete class documentation for the specific definition.
virtual float	widthAtHalfLength () const
	Width at half length. Useful for e.g. pitch definition.
Private Attributes
float	hapothem
float	hbotedge
float	hthickness
float	htopedge
float	offsetn
float	offsetp
float	tan_an
float	tan_ap
float	tg_tilt
float	tilt_angle
float	xoff

---

Detailed Description

GeneralTrapezoidal detector bounds.

Local Coordinate system coincides with center of the box with y axis being the symmetry axis along the height and pointing in the direction of top_edge.

Definition at line 16 of file GeneralTrapezoidalPlaneBounds.h.

---

Constructor & Destructor Documentation

GeneralTrapezoidalPlaneBounds::GeneralTrapezoidalPlaneBounds	(	float	be,
		float	te,
		float	ang,
		float	a,
		float	t
	)

Definition at line 6 of file GeneralTrapezoidalPlaneBounds.cc.

References offsetn, offsetp, funct::tan(), tan_an, tan_ap, tg_tilt, and xoff.

Referenced by clone().

                                                                                : 
  hbotedge(be), htopedge(te), tilt_angle(ang), hapothem(a), hthickness(t) {

  // pre-compute offsets of triangles and tg of (half) opening
  // angles of the trapezoid for faster inside() implementation
    
  tg_tilt = tan(ang*M_PI/180.);
  xoff = a * tg_tilt;
  offsetp = a * (te+be) / (te-be+2.*xoff);  // for x > 0 
  tan_ap = (te+xoff) / (offsetp + a);
  offsetn = a * (te+be) / (te-be-2.*xoff);  // for x < 0 
  tan_an = (xoff-te) / (offsetn + a);
}

---

Member Function Documentation

virtual Bounds* GeneralTrapezoidalPlaneBounds::clone

(

void

)

const [inline, virtual]

Implements Bounds.

Definition at line 40 of file GeneralTrapezoidalPlaneBounds.h.

References GeneralTrapezoidalPlaneBounds().

                                { 
    return new GeneralTrapezoidalPlaneBounds(*this);
  }

virtual bool GeneralTrapezoidalPlaneBounds::inside	(	const Local2DPoint &	p,
		const LocalError &	err,
		float	scale
	)			const [inline, virtual]

Determine if a 2D point is inside the bounds, taking error into account.

Reimplemented from Bounds.

Definition at line 34 of file GeneralTrapezoidalPlaneBounds.h.

References Bounds::inside().

                                                                                        {
    return Bounds::inside(p,err,scale);
  }

bool GeneralTrapezoidalPlaneBounds::inside	(	const Local3DPoint &	,
		const LocalError &	,
		float	scale
	)			const [virtual]

Determine if a point is inside the bounds, taking error into account.

Implements Bounds.

Definition at line 34 of file GeneralTrapezoidalPlaneBounds.cc.

References hapothem, hbotedge, hthickness, htopedge, inside(), funct::sqrt(), tilt_angle, tmp, LocalError::xx(), and LocalError::yy().

                                                                                      {

  GeneralTrapezoidalPlaneBounds tmp( hbotedge + sqrt(err.xx())*scale,
                                     htopedge + sqrt(err.xx())*scale,
                                     tilt_angle,
                                     hapothem + sqrt(err.yy())*scale,
                                     hthickness);
  return tmp.inside(p);
}

bool GeneralTrapezoidalPlaneBounds::inside

(

const Local3DPoint &

)

const [virtual]

Determine if the point is inside the bounds.

Implements Bounds.

Definition at line 27 of file GeneralTrapezoidalPlaneBounds.cc.

References funct::abs(), hapothem, hthickness, offsetn, offsetp, tan_an, tan_ap, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

                                                                       {
  return std::abs(p.y()) <= hapothem &&
    ( (p.x() >=0. && p.x()/(p.y()+offsetp) <= tan_ap) ||
      (p.x() < 0. && p.x()/(p.y()+offsetn) >= tan_an) ) &&
    std::abs(p.z()) <= hthickness;
}

bool GeneralTrapezoidalPlaneBounds::inside

(

const Local2DPoint &

p

)

const [virtual]

Reimplemented from Bounds.

Definition at line 21 of file GeneralTrapezoidalPlaneBounds.cc.

References funct::abs(), hapothem, offsetn, offsetp, tan_an, tan_ap, PV2DBase< T, PVType, FrameType >::x(), and PV2DBase< T, PVType, FrameType >::y().

Referenced by inside().

                                                                       {
  return std::abs(p.y()) <= hapothem && 
    ( (p.x() >=0. && p.x()/(p.y()+offsetp) <= tan_ap) ||
      (p.x() < 0. && p.x()/(p.y()+offsetn) >= tan_an) );
}

virtual float GeneralTrapezoidalPlaneBounds::length

(

)

const [inline, virtual]

"Lenght" of the bounded volume; refer to the concrete class documentation for the specific definition.

Implements Bounds.

Definition at line 22 of file GeneralTrapezoidalPlaneBounds.h.

References hapothem.

{ return 2 * hapothem;}

const std::vector< float > GeneralTrapezoidalPlaneBounds::parameters

(

void

)

const [virtual]

Definition at line 45 of file GeneralTrapezoidalPlaneBounds.cc.

References hapothem, hbotedge, hthickness, htopedge, and tilt_angle.

                                                                       { 
  std::vector<float> vec(7);
  // Same order as geant3 for constructor compatibility
  vec[0] = hthickness;
  vec[1] = 0;
  vec[2] = 0;
  vec[3] = hapothem;
  vec[4] = hbotedge;
  vec[5] = htopedge;
  vec[6] = tilt_angle;
  return vec;
}

virtual float GeneralTrapezoidalPlaneBounds::thickness

(

)

const [inline, virtual]

"Thickness" of the bound around the surface; refer to the concrete class documentation for the specific definition.

Implements Bounds.

Definition at line 24 of file GeneralTrapezoidalPlaneBounds.h.

References hthickness.

{ return 2 * hthickness;}

virtual float GeneralTrapezoidalPlaneBounds::width

(

)

const [inline, virtual]

"width" of the bounds; refer to the concrete class documentation for the specific definition.

Implements Bounds.

Definition at line 23 of file GeneralTrapezoidalPlaneBounds.h.

References hbotedge, htopedge, and max.

{ return 2 * std::max( hbotedge, htopedge);}

virtual float GeneralTrapezoidalPlaneBounds::widthAtHalfLength

(

)

const [inline, virtual]

Width at half length. Useful for e.g. pitch definition.

Reimplemented from Bounds.

Definition at line 26 of file GeneralTrapezoidalPlaneBounds.h.

References hbotedge, and htopedge.

{return hbotedge+htopedge;}

---

Member Data Documentation

float GeneralTrapezoidalPlaneBounds::hapothem [private]

Definition at line 49 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by inside(), length(), and parameters().

float GeneralTrapezoidalPlaneBounds::hbotedge [private]

Definition at line 46 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by inside(), parameters(), width(), and widthAtHalfLength().

float GeneralTrapezoidalPlaneBounds::hthickness [private]

Definition at line 50 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by inside(), parameters(), and thickness().

float GeneralTrapezoidalPlaneBounds::htopedge [private]

Definition at line 47 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by inside(), parameters(), width(), and widthAtHalfLength().

float GeneralTrapezoidalPlaneBounds::offsetn [private]

Definition at line 55 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by GeneralTrapezoidalPlaneBounds(), and inside().

float GeneralTrapezoidalPlaneBounds::offsetp [private]

Definition at line 55 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by GeneralTrapezoidalPlaneBounds(), and inside().

float GeneralTrapezoidalPlaneBounds::tan_an [private]

Definition at line 56 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by GeneralTrapezoidalPlaneBounds(), and inside().

float GeneralTrapezoidalPlaneBounds::tan_ap [private]

Definition at line 56 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by GeneralTrapezoidalPlaneBounds(), and inside().

float GeneralTrapezoidalPlaneBounds::tg_tilt [private]

Definition at line 54 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by GeneralTrapezoidalPlaneBounds().

float GeneralTrapezoidalPlaneBounds::tilt_angle [private]

Definition at line 48 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by inside(), and parameters().

float GeneralTrapezoidalPlaneBounds::xoff [private]

Definition at line 53 of file GeneralTrapezoidalPlaneBounds.h.

Referenced by GeneralTrapezoidalPlaneBounds().

---

The documentation for this class was generated from the following files:

• DataFormats/GeometrySurface/interface/GeneralTrapezoidalPlaneBounds.h
• DataFormats/GeometrySurface/src/GeneralTrapezoidalPlaneBounds.cc

---