Acts::detail::IntersectionHelper2D Struct Reference

#include <acts/blob/sPHENIX/Core/include/Acts/Surfaces/detail/IntersectionHelper2D.hpp>

Static Public Member Functions
static Intersection2D	intersectSegment (const Vector2D &s0, const Vector2D &s1, const Vector2D &origin, const Vector2D &dir)
static std::pair < Intersection2D, Intersection2D >	intersectEllipse (double Rx, double Ry, const Vector2D &origin, const Vector2D &dir)
static std::pair < Intersection2D, Intersection2D >	intersectCircle (double R, const Vector2D &origin, const Vector2D &dir)

Detailed Description

Definition at line 19 of file IntersectionHelper2D.hpp.

View newest version in sPHENIX GitHub at line 19 of file IntersectionHelper2D.hpp

Member Function Documentation

static std::pair<Intersection2D, Intersection2D> Acts::detail::IntersectionHelper2D::intersectCircle ( double  R, const Vector2D &  origin, const Vector2D &  dir  )

inlinestatic

Intersect the circle

Parameters

R	The radius
origin	The Start of intersection line
direction	The Direction of intersection line

Returns

the intersection points

Definition at line 50 of file IntersectionHelper2D.hpp.

View newest version in sPHENIX GitHub at line 50 of file IntersectionHelper2D.hpp

References intersectEllipse().

Referenced by Acts::Test::basicChecks(), and Acts::Test::BOOST_AUTO_TEST_CASE().

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std::pair< Acts::Intersection2D, Acts::Intersection2D > Acts::detail::IntersectionHelper2D::intersectEllipse ( double  Rx, double  Ry, const Vector2D &  origin, const Vector2D &  dir  )

static

Intersect ellipses

Parameters

Rx	The radius in x
Ry	The radius in y
origin	The Start of intersection line
direction	The Direction of intersection line

Returns

the intersection points

Definition at line 35 of file IntersectionHelper2D.cpp.

View newest version in sPHENIX GitHub at line 35 of file IntersectionHelper2D.cpp

References kdfinder::abs(), starlightConstants::alpha, d, Acts::detail::RealQuadraticEquation::first, gamma(), k, Acts::s_epsilon, Acts::detail::RealQuadraticEquation::second, Acts::detail::RealQuadraticEquation::solutions, and x.

Referenced by Acts::Test::basicChecks(), Acts::Test::BOOST_AUTO_TEST_CASE(), and intersectCircle().

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Acts::Intersection2D Acts::detail::IntersectionHelper2D::intersectSegment ( const Vector2D &  s0, const Vector2D &  s1, const Vector2D &  origin, const Vector2D &  dir  )

static

Intersect two segments

Parameters

s0	The Start of the segement
s1	The end of the segement
origin	The Start of intersection line
direction	The Direction of intersection line

Returns

the intersection point with status

Definition at line 16 of file IntersectionHelper2D.cpp.

View newest version in sPHENIX GitHub at line 16 of file IntersectionHelper2D.cpp

References kdfinder::abs(), d, and Acts::s_epsilon.

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE().

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

• acts/blob/sPHENIX/Core/include/Acts/Surfaces/detail/IntersectionHelper2D.hpp
• acts/blob/sPHENIX/Core/src/Surfaces/IntersectionHelper2D.cpp