Package cnuphys.snr

Class SNRCluster

java.lang.Object
cnuphys.snr.SNRCluster
public class SNRCluster extends Object
Author:
heddle A cluster candidate is a list of wires with the requirement that there are no more than two wires in a given layer

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    final int
    numLayers
    The number of layers, probably 6
    final int
    numWires
    The number of wires, probably 112
    final SegmentStartList
    segmentStartList
    a list for the segment starting points.
    final WireList[]
    wireLists
    one wirelist for each layer

  • Constructor Summary

    Constructors
    Constructor
    Description
    SNRCluster(int numLayers, int numWires)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    add(int layer, int wire)
    Add a wire to the wire list for a given layer.
    void
    addSegmentStart(int wire)
    Add a segment (candidate) start wire
    void
    clean()
    This removes wires from the wire list if there are more than two in a given layer.
    void
    clear()
    Clear the wire lists.
    void
    computeLine()
    This computes slope and intercept a line using the layer as the X value and the average wire number as the Y so a slope of 0 looks "vertical".
    double
    getSlope()
    Get the slope of the linear fit
    double
    getWirePosition(int layer)
    Used to draw a linear fit to the cluster
    boolean
    hasSubset(SNRCluster c)
    The given cluster is a subset of this cluster if all wirelists are subsets
    void
    packData(NoiseReductionParameters params)
     
    String
    toString()
    String representation

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Field Details

    • numLayers

      public final int numLayers
      The number of layers, probably 6

    • numWires

      public final int numWires
      The number of wires, probably 112

    • segmentStartList

      public final SegmentStartList segmentStartList
      a list for the segment starting points.

    • wireLists

      public final WireList[] wireLists
      one wirelist for each layer

  • Constructor Details

    • SNRCluster

      public SNRCluster(int numLayers, int numWires)
      Parameters:
      numLayers - the number of layers, for CLAS12 6
      numWires - the number of wires, for CLAS12 112

  • Method Details

    • add

      public void add(int layer, int wire)
      Add a wire to the wire list for a given layer. The wireList will enforce no duplicates, but will keep repeat count
      Parameters:
      layer - the zero-based layer, for CLAS12 [0..5]
      wire - the zero-based wire, for CLAS12 [0..111]

    • addSegmentStart

      public void addSegmentStart(int wire)
      Add a segment (candidate) start wire
      Parameters:
      wire - the zero-based wire, for CLAS12 [0..111]
      numMissing - the number of missing layers required

    • clear

      public void clear()
      Clear the wire lists. So the object can be reused, but only for the same sector, superlayer, and numLayers

    • toString

      public String toString()
      String representation
      Overrides:
      toString in class Object
      Returns:
      a String representation of the cluster

    • packData

      public void packData(NoiseReductionParameters params)

    • getSlope

      public double getSlope()
      Get the slope of the linear fit
      Returns:

    • clean

      public void clean()
      This removes wires from the wire list if there are more than two in a given layer.

    • computeLine

      public void computeLine()
      This computes slope and intercept a line using the layer as the X value and the average wire number as the Y so a slope of 0 looks "vertical". We do it this way to avoid the possibility of an infinite slope.

    • getWirePosition

      public double getWirePosition(int layer)
      Used to draw a linear fit to the cluster
      Parameters:
      layer - the layer
      Returns:
      the wire position as a real (with fractional part)

    • hasSubset

      public boolean hasSubset(SNRCluster c)
      The given cluster is a subset of this cluster if all wirelists are subsets
      Parameters:
      c - the given cluster
      Returns:
      true if the given cluster is a subset of this cluster