GeometryHelper class. More...

#include <GeometryHelper.h>

Static Public Member Functions
static pandora::StatusCode	GetClosestDistanceBetweenLines (const pandora::CartesianVector &point1, const pandora::CartesianVector &direction1, const pandora::CartesianVector &point2, const pandora::CartesianVector &direction2, float &distance)
	Get the closest distance between the two lines. More...

static pandora::StatusCode	GetClosestDistanceToLine (const pandora::CartesianVector &point1, const pandora::CartesianVector &direction1, const pandora::CartesianVector &point2, float &impactParameter)
	Get the closest distance between a point and a line. More...

static pandora::StatusCode	GetProjectionOnLine (const pandora::CartesianVector &linePoint, const pandora::CartesianVector &direction, const pandora::CartesianVector &point, pandora::CartesianVector &projection)
	Get the projection of a point on the line. More...

static pandora::StatusCode	GetCrossingPointsBetweenLines (const pandora::CartesianVector &point1, const pandora::CartesianVector &direction1, const pandora::CartesianVector &point2, const pandora::CartesianVector &direction2, pandora::CartesianVector &crossingPoint1, pandora::CartesianVector &crossingPoint2)
	Get the two crossing points of two lines at the closest distance approach. More...

static pandora::StatusCode	GetLinePlaneCrossingPoint (const pandora::CartesianVector &linePoint, const pandora::CartesianVector &lineDirection, float planeA, float planeB, float planeC, float planeD, pandora::CartesianVector &crossingPoint)
	Get the crossing point between a line and a plane in space. The equation plane is defined as : More...

static pandora::StatusCode	GetECalHCalEndCapGapSize (const pandora::Pandora &pandora, float &gapSize)
	Get the gap size between the ECal end cap and the HCal end cap. More...

static pandora::StatusCode	GetECalHCalBarrelGapSize (const pandora::Pandora &pandora, float &gapSize)
	Get the gap size between the ECal barrel and the HCal barrel. More...

static pandora::StatusCode	GetTrackerECalEndCapGapSize (const pandora::Pandora &pandora, float &gapSize)
	Get the gap size between the tracker and ECal end cap. More...

static pandora::StatusCode	GetTrackerECalBarrelGapSize (const pandora::Pandora &pandora, float &gapSize)
	Get the gap size between the tracker and ECal barrel. More...

static pandora::StatusCode	GetEndcapGapSeparation (const pandora::Pandora &pandora, const pandora::CaloHit const pEcalCaloHit, const pandora::CaloHit const pHcalCaloHit, float &gapSeparation)
	Get the gap separation in the end cap region between two calo hits. More...

static pandora::StatusCode	GetBarrelGapSeparation (const pandora::Pandora &pandora, const pandora::CaloHit const pEcalCaloHit, const pandora::CaloHit const pHcalCaloHit, float &gapSeparation)
	Get the gap separation in the barrel region between two calo hits. More...

static pandora::StatusCode	GetOuterNormaleVector (const pandora::Pandora &pandora, pandora::SubDetectorType type, const pandora::CartesianVector &point, pandora::CartesianVector &normaleVector)
	Get the normale vector at outer detector face in the phi region where the point is contained. More...

static pandora::StatusCode	GetInnerNormaleVector (const pandora::Pandora &pandora, pandora::SubDetectorType type, const pandora::CartesianVector &point, pandora::CartesianVector &normaleVector)
	Get the normale vector at inner detector face in the phi region where the point is contained. More...

static pandora::StatusCode	GetProjectionOnHelix (const pandora::Helix &helix, const pandora::CartesianVector &point, pandora::CartesianVector &projection)
	Get the projection of a point on the helix. More...

static pandora::StatusCode	GetDistanceToHelix (const pandora::Helix &helix, const pandora::CartesianVector &point, float &distanceToHelix)
	Get the distance between a point and the helix. More...

Detailed Description

GeometryHelper class.

Member Function Documentation

pandora::StatusCode april_content::GeometryHelper::GetBarrelGapSeparation	(	const pandora::Pandora &	pandora,
		const pandora::CaloHit *const	pEcalCaloHit,
		const pandora::CaloHit *const	pHcalCaloHit,
		float &	gapSeparation
	)

static

Get the gap separation in the barrel region between two calo hits.

Parameters

pandora	the pandora instance to access geometry parameters
pEcalCaloHit	the ecal calo hit address in the barrel region
pHcalCaloHit	the hcal calo hit address in the barrel region
gapSeparation	the gap separation distance to receive

pandora::StatusCode april_content::GeometryHelper::GetClosestDistanceBetweenLines	(	const pandora::CartesianVector &	point1,
		const pandora::CartesianVector &	direction1,
		const pandora::CartesianVector &	point2,
		const pandora::CartesianVector &	direction2,
		float &	distance
	)

static

Get the closest distance between the two lines.

Parameters

point1	on the line 1
direction1	of the line1
point2	on the line 2
direction2	of the line 2
the	closest distance to receive

pandora::StatusCode april_content::GeometryHelper::GetClosestDistanceToLine	(	const pandora::CartesianVector &	point1,
		const pandora::CartesianVector &	direction1,
		const pandora::CartesianVector &	point2,
		float &	impactParameter
	)

static

Get the closest distance between a point and a line.

Parameters

point1	on the line
direction1	of the line
point2	in the space
the	closest distance between the point and the line to receive

pandora::StatusCode april_content::GeometryHelper::GetCrossingPointsBetweenLines	(	const pandora::CartesianVector &	point1,
		const pandora::CartesianVector &	direction1,
		const pandora::CartesianVector &	point2,
		const pandora::CartesianVector &	direction2,
		pandora::CartesianVector &	crossingPoint1,
		pandora::CartesianVector &	crossingPoint2
	)

static

Get the two crossing points of two lines at the closest distance approach.

Parameters

point1	on the line 1
direction1	of the line 1
point2	on the line 2
direction2	of the line 2
crossingPoint1	the crossing point on the line 1 to receive
crossingPoint2	the crossing point on the line 2 to receive

pandora::StatusCode april_content::GeometryHelper::GetDistanceToHelix	(	const pandora::Helix &	helix,
		const pandora::CartesianVector &	point,
		float &	distanceToHelix
	)

static

Get the distance between a point and the helix.

Parameters

helix	the helix to consider
point	a point in space
distanceToHelix	the distance to the helix to receive

pandora::StatusCode april_content::GeometryHelper::GetECalHCalBarrelGapSize	(	const pandora::Pandora &	pandora,
		float &	gapSize
	)

static

Get the gap size between the ECal barrel and the HCal barrel.

Parameters

pandora	the pandora instance to access geometry parameters
gapSize	the gap size to receive

pandora::StatusCode april_content::GeometryHelper::GetECalHCalEndCapGapSize	(	const pandora::Pandora &	pandora,
		float &	gapSize
	)

static

Get the gap size between the ECal end cap and the HCal end cap.

Parameters

pandora	the pandora instance to access geometry parameters
gapSize	the gap size to receive

pandora::StatusCode april_content::GeometryHelper::GetEndcapGapSeparation	(	const pandora::Pandora &	pandora,
		const pandora::CaloHit *const	pEcalCaloHit,
		const pandora::CaloHit *const	pHcalCaloHit,
		float &	gapSeparation
	)

static

Get the gap separation in the end cap region between two calo hits.

Parameters

pandora	the pandora instance to access geometry parameters
pEcalCaloHit	the ecal calo hit address in the end cap region
pHcalCaloHit	the hcal calo hit address in the end cap region
gapSeparation	the gap separation distance to receive

pandora::StatusCode april_content::GeometryHelper::GetInnerNormaleVector	(	const pandora::Pandora &	pandora,
		pandora::SubDetectorType	type,
		const pandora::CartesianVector &	point,
		pandora::CartesianVector &	normaleVector
	)

static

Get the normale vector at inner detector face in the phi region where the point is contained.

Parameters

pandora	the pandora instance to access geometry parameters
type	the sub detector type (requires access to inner symmetry order)
point	a point in space that fixes the phi region
normaleVector	the normal vector at the inner detector face to receive

pandora::StatusCode april_content::GeometryHelper::GetLinePlaneCrossingPoint	(	const pandora::CartesianVector &	linePoint,
		const pandora::CartesianVector &	lineDirection,
		float	planeA,
		float	planeB,
		float	planeC,
		float	planeD,
		pandora::CartesianVector &	crossingPoint
	)

static

Get the crossing point between a line and a plane in space. The equation plane is defined as :

P : a*x + b*y + c*z + d = 0

Parameters

linePoint	a point on the line
lineDirection	the line direction vector
planeA	the a component in the plane equation
planeB	the b component in the plane equation
planeC	the c component in the plane equation
planeD	the d component in the plane equation
crossingPoint	the crossing point vector position to receive

pandora::StatusCode april_content::GeometryHelper::GetOuterNormaleVector	(	const pandora::Pandora &	pandora,
		pandora::SubDetectorType	type,
		const pandora::CartesianVector &	point,
		pandora::CartesianVector &	normaleVector
	)

static

Get the normale vector at outer detector face in the phi region where the point is contained.

Parameters

pandora	the pandora instance to access geometry parameters
type	the sub detector type (requires access to outer symetry order)
point	a point in space that fixes the phi region
normaleVector	the normale vector at the outer detector face to receive

pandora::StatusCode april_content::GeometryHelper::GetProjectionOnHelix	(	const pandora::Helix &	helix,
		const pandora::CartesianVector &	point,
		pandora::CartesianVector &	projection
	)

static

Get the projection of a point on the helix.

Parameters

helix	the helix to consider
point	the point in space to project on the helix
projection	the projection point to receive

pandora::StatusCode april_content::GeometryHelper::GetProjectionOnLine	(	const pandora::CartesianVector &	linePoint,
		const pandora::CartesianVector &	direction,
		const pandora::CartesianVector &	point,
		pandora::CartesianVector &	projection
	)

static

Get the projection of a point on the line.

Parameters

linePoint	on the line
direction1	of the line
point	in the space
projection	the projection vector on the line to receive

pandora::StatusCode april_content::GeometryHelper::GetTrackerECalBarrelGapSize	(	const pandora::Pandora &	pandora,
		float &	gapSize
	)

static

Get the gap size between the tracker and ECal barrel.

Parameters

pandora	the pandora instance to access geometry parameters
gapSize	the gap size to receive

pandora::StatusCode april_content::GeometryHelper::GetTrackerECalEndCapGapSize	(	const pandora::Pandora &	pandora,
		float &	gapSize
	)

static

Get the gap size between the tracker and ECal end cap.

Parameters

pandora	the pandora instance to access geometry parameters
gapSize	the gap size to receive

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

APRILContent/include/APRILHelpers/GeometryHelper.h
APRILContent/src/APRILHelpers/GeometryHelper.cc

Static Public Member Functions

Detailed Description

Member Function Documentation