Class Acts::GenericCurvilinearTrackParameters
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template<typename particle_hypothesis_t>
class GenericCurvilinearTrackParameters : public Acts::GenericBoundTrackParameters<particle_hypothesis_t> Curvilinear track parameters for a single track.
This is intended as a user-facing data class that adds additional accessors and charge/momentum interpretation on top of the pure parameters vector. All parameters and their corresponding covariance matrix are stored in curvilinear parametrization.
See also
GenericBoundTrackParameters
- Template Parameters
particle_hypothesis_t – Helper type to interpret the particle charge/momentum
Public Types
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using CovarianceMatrix = BoundSquareMatrix
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using ParametersVector = BoundVector
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using ParticleHypothesis = particle_hypothesis_t
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using Scalar = ActsScalar
Public Functions
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GenericCurvilinearTrackParameters() = delete
Parameters are not default constructible due to the charge type.
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GenericCurvilinearTrackParameters(const GenericCurvilinearTrackParameters&) = default
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template<typename other_particle_hypothesis_t>
inline GenericCurvilinearTrackParameters(const GenericCurvilinearTrackParameters<other_particle_hypothesis_t> &other) Converts a bound track parameter with a different hypothesis.
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inline GenericCurvilinearTrackParameters(const Vector4 &pos4, const Vector3 &dir, Scalar qOverP, std::optional<CovarianceMatrix> cov, ParticleHypothesis particleHypothesis)
Construct from four-position, direction, and qOverP.
- Parameters
pos4 – Track position/time four-vector
dir – Track direction three-vector; normalization is ignored.
qOverP – Charge over momentum
cov – Curvilinear bound parameters covariance matrix
particleHypothesis – Particle hypothesis
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inline GenericCurvilinearTrackParameters(const Vector4 &pos4, Scalar phi, Scalar theta, Scalar qOverP, std::optional<CovarianceMatrix> cov, ParticleHypothesis particleHypothesis)
Construct from four-position, angles, and qOverP.
- Parameters
pos4 – Track position/time four-vector
phi – Transverse track direction angle
theta – Longitudinal track direction angle
qOverP – Charge over momentum
cov – Curvilinear bound parameters covariance matrix
particleHypothesis – Particle hypothesis
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GenericCurvilinearTrackParameters(GenericCurvilinearTrackParameters&&) = default
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~GenericCurvilinearTrackParameters() = default
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GenericCurvilinearTrackParameters &operator=(const GenericCurvilinearTrackParameters&) = default
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GenericCurvilinearTrackParameters &operator=(GenericCurvilinearTrackParameters&&) = default
Public Static Functions
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template<typename other_track_parameter_t>
static inline GenericCurvilinearTrackParameters create(const other_track_parameter_t &other) Converts an unknown bound track parameter.