Class Acts::CylinderBounds¶
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class CylinderBounds : public Acts::SurfaceBounds¶
Bounds for a cylindrical Surface.
These bounds may be used for a CylinderSurface In case of bounds for a StraightLineSurface the radius determines the radius within a localPosition is regarded as inside bounds.
CylinderBounds also enhance the possibility of a cylinder segment with an opening angle \( 2\cdot\phi_{half}\) around an average \( \phi \) angle \( \phi_{ave} \).
CylinderBounds also supports beveled sides defined by an angle. Different angles can be defined on both sides of the cylinder. A postive angle is defined as “extruding” from the defined Zlength, while a negative angle is “intruding” on the Zlength.
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\ | / \ | / \ | / \ | / |/______________|/ 2 * ZhalfLength
Public Types
Public Functions
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CylinderBounds() = delete¶
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inline CylinderBounds(double r, double halfZ, double halfPhi = M_PI, double avgPhi = 0., double bevelMinZ = 0., double bevelMaxZ = 0.) noexcept(false)¶
Constructor - full cylinder.
- Parameters
r – The radius of the cylinder
halfZ – The half length in z
halfPhi – The half opening angle
avgPhi – (optional) The phi value from which the opening angle spans
bevelMinZ – (optional) The bevel on the negative z side
bevelMaxZ – (optional) The bevel on the positive z sid The bevel on the positive z side
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inline CylinderBounds(const std::array<double, eSize> &values) noexcept(false)¶
Constructor - from fixed size array.
- Parameters
values – The parameter values
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~CylinderBounds() override = default¶
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inline bool coversFullAzimuth() const¶
Returns true for full phi coverage.
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std::vector<Vector3> createCircles(const Transform3 trans, size_t lseg) const¶
Create the bows/circles on either side of the cylinder.
- Parameters
trans – is the global transform
lseg – are the numbero if phi segments
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inline double get(BoundValues bValue) const¶
Access to the bound values.
- Parameters
bValue – the class nested enum for the array access
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virtual bool inside(const Vector2 &lposition, const BoundaryCheck &bcheck) const final¶
Inside check for the bounds object driven by the boundary check directive Each Bounds has a method inside, which checks if a LocalPosition is inside the bounds Inside can be called without/with tolerances.
- Parameters
lposition – Local position (assumed to be in right surface frame)
bcheck – boundary check directive
- Returns
boolean indicator for the success of this operation
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bool inside3D(const Vector3 &position, const BoundaryCheck &bcheck = true) const¶
Specialized method for CylinderBounds that checks if a global position is within the cylinder cover.
- Parameters
position – is the position in the cylinder frame
bcheck – is the boundary check directive
- Returns
boolean indicator for operation success
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virtual std::ostream &toStream(std::ostream &sl) const final¶
Output Method for std::ostream.
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virtual BoundsType type() const final¶
Return the bounds type - for persistency optimization.
- Returns
is a BoundsType enum
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inline virtual std::vector<double> values() const final¶
Return the bound values as dynamically sized vector.
- Returns
this returns a copy of the internal values