Herd::Geom Namespace Reference

Classes
struct	IntersectionResult

Functions
Point	ProjectPointToLine (const Point &point, const Line &line)
	Finds the projection of a point to a line. More...
bool	IsInsideCaloEnvelope (const Point &point, const CaloGeoParams &geoParams)
	Checks if a point is inside the CALO envelope. More...
std::optional< Segment >	PathInCaloLyso (const Line &line, const CaloGeoParams &geoParams)
	Computes the path of the given line in LYSO. More...
std::optional< Segment >	PathInCaloEnvelope (const Line &line, const CaloGeoParams &geoParams)
	Computes the path of the given line in the CALO envelope. More...
float	DistanceToCaloEnvelope (const Point &point, const CaloGeoParams &geoParams)
	Computes the distance of a point from the CALO envelope. More...
float	CaloPathlengthAfterPoint (const Point &startingPoint, const Vec3D &direction, const CaloGeoParams &geoParams)
	Computes the distance between a point inside CALO and the CALO border along a given direction. More...
template<class GeoParams >
std::vector< IntersectionResult >	Intersect (const Line &line, const GeoParams &geoParams)
	compute intersections between a line and a given geoparams object More...

Function Documentation

CaloPathlengthAfterPoint()

float Herd::Geom::CaloPathlengthAfterPoint	(	const Point &	startingPoint,
		const Vec3D &	direction,
		const CaloGeoParams &	geoParams
	)

Computes the distance between a point inside CALO and the CALO border along a given direction.

The CALO border is defined by the LYSO cubes.

Parameters

startingPoint	The point inside CALO.
direction	The direction along which the distance to CALO border is computed.
geoParams	The CALO geometry parameters.

Returns

The distance between startingPoint and the CALO border computed along direction.

DistanceToCaloEnvelope()

float Herd::Geom::DistanceToCaloEnvelope	(	const Point &	point,
		const CaloGeoParams &	geoParams
	)

Computes the distance of a point from the CALO envelope.

This function computes the distance between the given point and the CALO envelope as given by the geometric parameters object.

Parameters

point	The point.
geoParams	The geometric parameters of the CALO.

Returns

The distance between the point and the CALO envelope in cm.

Intersect()

template<class GeoParams >

std::vector<IntersectionResult> Herd::Geom::Intersect	(	const Line &	line,
		const GeoParams &	geoParams
	)

compute intersections between a line and a given geoparams object

Template Parameters

GeoParams

Parameters

line
geoParams

Returns

a list of intersection points on all volumes hit by the line

IsInsideCaloEnvelope()

bool Herd::Geom::IsInsideCaloEnvelope	(	const Point &	point,
		const CaloGeoParams &	geoParams
	)

Checks if a point is inside the CALO envelope.

Parameters

point	The given point
geoParams	The geometry parameters of the CALO

Returns

true if the point is inside the CALO envelope, false otherwise

PathInCaloEnvelope()

std::optional< Segment > Herd::Geom::PathInCaloEnvelope	(	const Line &	line,
		const CaloGeoParams &	geoParams
	)

Computes the path of the given line in the CALO envelope.

Computes the exact path in the CALO envelope of the given line by checking the intersection of the line with the envelope surface. The path is returned as a Herd::Segment object, whose starting point is the first intersection along the line direction and whose end point is the second one. If the line does not intersect the envelope a default Herd::Segment is returned.

Parameters

line	The line for which the path in LYSO is computed.
geoParams	The geometry parameters of the CALO.

Returns

Optional: A segment describing the line path in the envelope, if they intersect

PathInCaloLyso()

std::optional< Segment > Herd::Geom::PathInCaloLyso	(	const Line &	line,
		const CaloGeoParams &	geoParams
	)

Computes the path of the given line in LYSO.

Computes the exact path in LYSO of the given line by checking the intersection of the line with each cube and then finding the entrance and exit points from CALO among them.

Parameters

line	The line for which the path in LYSO is computed.
geoParams	The geometry parameters of the CALO.

Returns

Optional: A segment connecting the line entry and exit points in LYSO, if they intersect.

ProjectPointToLine()

Point Herd::Geom::ProjectPointToLine	(	const Point &	point,
		const Line &	line
	)

Finds the projection of a point to a line.

Parameters

point	The point to project.
line	The line to which the point is projected.

Returns

The orthogonal projection of the given point on the given line.