A basic line segment, used for contour making algorithm(s) More...

#include <AliMUONSegment.h>

Inheritance diagram for AliMUONSegment:

Public Member Functions
	AliMUONSegment ()

	AliMUONSegment (Double_t xstart, Double_t ystart, Double_t xend, Double_t yend)

virtual	~AliMUONSegment ()
	dtor More...

virtual Int_t	Compare (const TObject *obj) const

virtual Bool_t	IsSortable () const
	We are sortable. More...

Double_t	StartX () const
	Return the x-coordinate of our starting point. More...

Double_t	StartY () const
	Return the y-coordinate of our starting point. More...

Double_t	EndX () const
	Return the x-coordinate of our ending point. More...

Double_t	EndY () const
	Return the y-coordinate of our ending point. More...

double	SmallerY () const
	Return our smallest y (of starting or ending point) More...

Bool_t	IsHorizontal () const
	Whether we are a horizontal segment. More...

Bool_t	IsVertical () const
	Whethere we are a vertical segment. More...

Bool_t	IsLeftEdge () const
	Whether we are a left edge. More...

Bool_t	IsRightEdge () const
	Whether we are a right edge. More...

double	Bottom () const
	Return our bottom y. More...

double	Top () const

double	Distance () const

Bool_t	IsAPoint () const
	Whether we're just a point. More...

const char *	AsString () const

void	Print (Option_t *opt="") const

void	Set (Double_t xstart, Double_t ystart, Double_t xend, Double_t yend)

Static Public Member Functions
static Bool_t	AreEqual (double a, double b)

Private Attributes
Double_t	fStartX
	x of start point More...

Double_t	fStartY
	y of start point More...

Double_t	fEndX
	x of end point More...

Double_t	fEndY
	y of end point More...

Double_t	fSmallerY
	Either StartY or EndY. More...

Bool_t	fIsHorizontal
	Whether the segment is horizontal. More...

Bool_t	fIsVertical
	Whether the segment is vertical. More...

Bool_t	fIsLeftEdge
	Whether the segment is a left edge. More...

Bool_t	fIsRightEdge
	Whether the segment is a right edge. More...

Bool_t	fIsAPoint
	Whether start==end. More...

Static Private Attributes
static const Double_t	fgkPrecision
	Floating point precision used in comparisons. More...

Detailed Description

A basic line segment, used for contour making algorithm(s)

A basic line segment, to be used in contour making algorithms.

In particular, this class defines what a left or right edge is.

Also, please note that, due to the way Root collections are sorted (relying on TObject::Compare method), the way the AliMUONSegment::Compare method is implemented below is really important when it comes to understand contour making algorithm. Keep that in mind.

Author: Laurent Aphecetche, Subatech

Definition at line 19 of file AliMUONSegment.h.

Constructor & Destructor Documentation

AliMUONSegment::AliMUONSegment ( )

Ctor

Definition at line 47 of file AliMUONSegment.cxx.

AliMUONSegment::AliMUONSegment	(	Double_t	xstart,
		Double_t	ystart,
		Double_t	xend,
		Double_t	yend
	)

Ctor

Definition at line 57 of file AliMUONSegment.cxx.

virtual AliMUONSegment::~AliMUONSegment ( )

inlinevirtual

dtor

Definition at line 25 of file AliMUONSegment.h.

Member Function Documentation

Bool_t AliMUONSegment::AreEqual	(	double	a,
		double	b
	)

static

Whether the two floats are equal within the given precision

Definition at line 68 of file AliMUONSegment.cxx.

Referenced by Compare(), AliMUONPointWithRef::Compare(), AliMUONNode::Contribution(), AliMUONContourMaker::FinalizeContour(), AliMUONContourMaker::GetVerticalEdges(), AliMUONNode::IsFullyContained(), Set(), AliMUONContourMaker::Sweep(), and AliMUONContourMaker::VerticalToHorizontal().

const char * AliMUONSegment::AsString ( ) const

Return a string representation of this object

Definition at line 126 of file AliMUONSegment.cxx.

Referenced by Print().

double AliMUONSegment::Bottom ( ) const

inline

Return our bottom y.

Definition at line 57 of file AliMUONSegment.h.

Referenced by AliMUONContourMaker::Sweep().

Int_t AliMUONSegment::Compare ( const TObject * obj ) const

virtual

Compare method, which sort segments in ascending x order if same x, insure that left edges are before right edges within same x, order by increasing bottommost y Mind your steps ! This method is critical to the contour merging algorithm !

Definition at line 76 of file AliMUONSegment.cxx.

double AliMUONSegment::Distance ( ) const

Length of the segment

Definition at line 111 of file AliMUONSegment.cxx.

Referenced by AsString(), and Set().

Double_t AliMUONSegment::EndX ( ) const

inline

Return the x-coordinate of our ending point.

Definition at line 37 of file AliMUONSegment.h.

Referenced by AliMUONContourMaker::FinalizeContour(), AliMUONContourMakerTest::PlotSegments(), AliMUONContourMaker::SortPoints(), and AliMUONContourMaker::VerticalToHorizontal().

Double_t AliMUONSegment::EndY ( ) const

inline

Return the y-coordinate of our ending point.

Definition at line 39 of file AliMUONSegment.h.

Referenced by AliMUONNode::Contribution(), AliMUONContourMaker::FinalizeContour(), AliMUONContourMaker::GetYPositions(), AliMUONContourMakerTest::PlotSegments(), AliMUONContourMaker::SortPoints(), AliMUONContourMaker::Sweep(), and AliMUONContourMaker::VerticalToHorizontal().

Bool_t AliMUONSegment::IsAPoint ( ) const

inline

Whether we're just a point.

Definition at line 64 of file AliMUONSegment.h.

Referenced by AliMUONContourMaker::Sweep().

Bool_t AliMUONSegment::IsHorizontal ( ) const

inline

Whether we are a horizontal segment.

Definition at line 45 of file AliMUONSegment.h.

Referenced by AsString().

Bool_t AliMUONSegment::IsLeftEdge ( ) const

inline

Whether we are a left edge.

Definition at line 51 of file AliMUONSegment.h.

Referenced by AsString(), Compare(), and AliMUONContourMaker::Sweep().

Bool_t AliMUONSegment::IsRightEdge ( ) const

inline

Whether we are a right edge.

Definition at line 54 of file AliMUONSegment.h.

Referenced by AsString(), and Compare().

virtual Bool_t AliMUONSegment::IsSortable ( ) const

inlinevirtual

We are sortable.

Definition at line 30 of file AliMUONSegment.h.

Bool_t AliMUONSegment::IsVertical ( ) const

inline

Whethere we are a vertical segment.

Definition at line 48 of file AliMUONSegment.h.

void AliMUONSegment::Print ( Option_t * opt = "" ) const

Printout

Definition at line 119 of file AliMUONSegment.cxx.

void AliMUONSegment::Set	(	Double_t	xstart,
		Double_t	ystart,
		Double_t	xend,
		Double_t	yend
	)

Set start and end point, and (re)compute internal values

Definition at line 136 of file AliMUONSegment.cxx.

Referenced by AliMUONSegment(), AliMUONNode::Contribution(), and AliMUONContourMaker::Sweep().

double AliMUONSegment::SmallerY ( ) const

inline

Return our smallest y (of starting or ending point)

Definition at line 42 of file AliMUONSegment.h.

Referenced by Bottom(), and Compare().

Double_t AliMUONSegment::StartX ( ) const

inline

Return the x-coordinate of our starting point.

Definition at line 33 of file AliMUONSegment.h.

Referenced by Compare(), AliMUONContourMaker::FinalizeContour(), AliMUONContourMakerTest::PlotSegments(), AliMUONContourMaker::SortPoints(), and AliMUONContourMaker::Sweep().

Double_t AliMUONSegment::StartY ( ) const

inline

Return the y-coordinate of our starting point.

Definition at line 35 of file AliMUONSegment.h.

Referenced by AliMUONNode::Contribution(), AliMUONContourMaker::FinalizeContour(), AliMUONContourMaker::GetYPositions(), AliMUONContourMakerTest::PlotSegments(), AliMUONContourMaker::SortPoints(), and AliMUONContourMaker::Sweep().

double AliMUONSegment::Top ( ) const

Max Y of the segment

Definition at line 104 of file AliMUONSegment.cxx.

Referenced by AliMUONContourMaker::Sweep().

Member Data Documentation

Double_t AliMUONSegment::fEndX

private

x of end point

Definition at line 77 of file AliMUONSegment.h.

Referenced by AsString(), Distance(), EndX(), and Set().

Double_t AliMUONSegment::fEndY

private

y of end point

Definition at line 78 of file AliMUONSegment.h.

Referenced by AsString(), Distance(), EndY(), Set(), and Top().

const Double_t AliMUONSegment::fgkPrecision

staticprivate

Floating point precision used in comparisons.

Definition at line 86 of file AliMUONSegment.h.

Referenced by AreEqual(), and Set().

Bool_t AliMUONSegment::fIsAPoint

private

Whether start==end.

Definition at line 84 of file AliMUONSegment.h.

Referenced by IsAPoint(), and Set().

Bool_t AliMUONSegment::fIsHorizontal

private

Whether the segment is horizontal.

Definition at line 80 of file AliMUONSegment.h.

Referenced by IsHorizontal(), and Set().

Bool_t AliMUONSegment::fIsLeftEdge

private

Whether the segment is a left edge.

Definition at line 82 of file AliMUONSegment.h.

Referenced by IsLeftEdge(), and Set().

Bool_t AliMUONSegment::fIsRightEdge

private

Whether the segment is a right edge.

Definition at line 83 of file AliMUONSegment.h.

Referenced by IsRightEdge(), and Set().

Bool_t AliMUONSegment::fIsVertical

private

Whether the segment is vertical.

Definition at line 81 of file AliMUONSegment.h.

Referenced by IsVertical(), and Set().

Double_t AliMUONSegment::fSmallerY

private

Either StartY or EndY.

Definition at line 79 of file AliMUONSegment.h.

Referenced by Set(), and SmallerY().

Double_t AliMUONSegment::fStartX

private

x of start point

Definition at line 75 of file AliMUONSegment.h.

Referenced by AsString(), Distance(), Set(), and StartX().

Double_t AliMUONSegment::fStartY

private

y of start point

Definition at line 76 of file AliMUONSegment.h.

Referenced by AsString(), Distance(), Set(), StartY(), and Top().

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

MUON/MUONgraphics/AliMUONSegment.h
MUON/MUONgraphics/AliMUONSegment.cxx

Public Member Functions

Static Public Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation