BeamFitUtils Class Reference

Helpers for the 2-D beam-spot description. More...

#include <BeamFit2D.hpp>

Static Public Member Functions
static Bool_t	InEllipseXY (const BeamFit2D &b, Double_t x, Double_t y, Double_t nx, Double_t ny)
	Whether a point lies inside the fitted beam ellipse.
static Moments2D	ComputeMoments (TH2F *h, Int_t lo_bx, Int_t hi_bx, Int_t lo_by, Int_t hi_by, Double_t thresh, Double_t bw_x, Double_t bw_y)
	Second moments of a histogram region above a threshold.

Detailed Description

Helpers for the 2-D beam-spot description.

Definition at line 39 of file BeamFit2D.hpp.

Member Function Documentation

ComputeMoments()

Moments2D BeamFitUtils::ComputeMoments ( TH2F * h, Int_t lo_bx, Int_t hi_bx, Int_t lo_by, Int_t hi_by, Double_t thresh, Double_t bw_x, Double_t bw_y )

static

Second moments of a histogram region above a threshold.

Parameters

h	Histogram to measure. Must not be null.
lo_bx	First x bin, inclusive.
hi_bx	Last x bin, inclusive.
lo_by	First y bin, inclusive.
hi_by	Last y bin, inclusive.
thresh	Bin contents at or below this are ignored, which keeps background out of the widths.
bw_x	x bin width, for converting bin indices to physical units.
bw_y	y bin width.

Returns

The moments; weight == 0 when nothing cleared thresh.

Definition at line 20 of file BeamFit2D.cpp.

Referenced by FindBeamGateStrips().

InEllipseXY()

Bool_t BeamFitUtils::InEllipseXY ( const BeamFit2D & b, Double_t x, Double_t y, Double_t nx, Double_t ny )

static

Whether a point lies inside the fitted beam ellipse.

Parameters

b	Fitted spot. Must have ok == kTRUE to be meaningful.
x	Point x.
y	Point y.
nx	Ellipse half-width in units of sigma_x.
ny	Ellipse half-height in units of sigma_y.

Returns

kTRUE if inside the correlation-aware ellipse.

Definition at line 3 of file BeamFit2D.cpp.

Referenced by CollectAnchorSamplesOneSubfile().

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

• tooling/include/BeamFit2D.hpp
• tooling/src/BeamFit2D.cpp