File DoubleHitSpacePointBuilder.hpp¶
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namespace Acts
Set the Geometry Context PLUGIN.
Set the Calibration Context PLUGIN.
Convenience functions to ease creation of and Acts::InterpolatedMaterialMap and to avoid code duplication.
Set the Mangetic Field Context PLUGIN.
Convenience functions to ease creation of and Acts::InterpolatedBFieldMap and to avoid code duplication.
Currently implemented for the two most common formats: rz and xyz.
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struct DoubleHitSpacePointConfig¶
- #include <Acts/Digitization/DoubleHitSpacePointBuilder.hpp>
Configuration of the class to steer its behaviour.
Public Members
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double diffDist = 100. * UnitConstants::mm¶
Accepted distance between two clusters.
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double diffPhi2 = 1.¶
Accepted squared difference in phi for two clusters.
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double diffTheta2 = 1.¶
Accepted squared difference in theta for two clusters.
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double stripLengthGapTolerance = 0.01¶
Allowed increase of strip length wrt gaps between strips.
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double stripLengthTolerance = 0.01¶
Allowed increase of strip length.
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bool usePerpProj = false¶
Perform the perpendicular projection for space point finding.
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double diffDist = 100. * UnitConstants::mm¶
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template<typename Cluster>
class SpacePointBuilder<SpacePoint<Cluster>> - #include <Acts/Digitization/DoubleHitSpacePointBuilder.hpp>
Public Functions
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SpacePointBuilder(DoubleHitSpacePointConfig cfg)
Constructor.
- Parameters
cfg – Specific config that will be used instead of the default values
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void calculateSpacePoints(const GeometryContext &gctx, const std::vector<std::pair<const Cluster*, const Cluster*>> &clusterPairs, std::vector<SpacePoint<Cluster>> &spacePoints) const
Calculates the space points out of a given collection of clusters on several strip detectors and stores the data.
Note
If no configuration is set, the default values will be used
- Parameters
gctx – The current geometry context object, e.g. alignment
clusterPairs – pairs of clusters that are space point candidates
spacePoints – storage of the results
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void makeClusterPairs(const GeometryContext &gctx, const std::vector<const Cluster*> &clustersFront, const std::vector<const Cluster*> &clustersBack, std::vector<std::pair<const Cluster*, const Cluster*>> &clusterPairs) const
Searches possible combinations of two clusters on different surfaces that may come from the same particles.
Note
The structure of
clustersFront
andclustersBack
is meant to be clusters[Independent clusters on a single surface]- Parameters
gctx – The current geometry context object, e.g. alignment
clustersFront – vector of clusters on a surface
clustersBack – vector of clusters on another surface
clusterPairs – storage of the cluster pairs
Private Functions
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std::pair<Vector3, Vector3> endsOfStrip(const GeometryContext &gctx, const Cluster &cluster) const¶
Calculates the top and bottom ends of a SDE that corresponds to a given hit.
- Parameters
gctx – The geometry context to use
cluster – object that stores the information about the hit
- Returns
vectors to the top and bottom end of the SDE
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Vector3 globalCoords(const GeometryContext &gctx, const Cluster &cluster) const¶
Getter method for the global coordinates of a cluster.
- Parameters
gctx – The geometry context to use
cluster – object related to the cluster that holds the necessary information
- Returns
vector of the global coordinates of the cluster
Private Members
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DoubleHitSpacePointConfig m_cfg¶
Config.
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SpacePointBuilder(DoubleHitSpacePointConfig cfg)
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struct DoubleHitSpacePointConfig¶