Detailed Description

Base class for lines/cuts used for particle identification in 2D data maps.

This provides all methods for calculating the shortest distance between a point (x,y) in the map and the line, or for finding the relative orientation of the point and the line (above/below, left/right). These methods are modified versions of methods existing in the TGraph base class.

Note: by default, a KVIDLine cannot be graphically modified using the mouse. This is to avoid accidents! This can of course be changed either with the context menu of the line, or when using the KVIDGridManagerGUI in Edit mode.

Double_t KVIDLine::DistanceToLine(Double_t px, Double_t py, Int_t &i_near)

Int_t

int Int_t

Double_t

double Double_t

KVIDLine::DistanceToLine

Double_t DistanceToLine(Double_t px, Double_t py, Int_t &)

Definition KVIDLine.h:246

Compute the closest distance of approach from point px,py to this line. The units of px, py are the same as the coordinates of the graph. WARNING: can be NEGATIVE - see below.

The distance from the point to each segment is calculated in turn.

If the point lies between the endpoints of at least one segment, the returned distance will be the closest of these segments. In this case i_near gives the index of the first point of the closest segment.

If not then the distance is the smallest distance between the endpoint of a segment and the point. In this case i_near gives the index of the closest endpoint. If the closest segment-endpoint is not one of the endpoints of the whole line, the returned distance is positive. On the other hand, if the closest part of the line to the point is one of the two endpoints of the line, the returned distance is NEGATIVE.

Double_t KVIDLine::DistanceToLine(Double_t px, Double_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2, Int_t &i_nearest_point)

Given a line segment defined by endpoints (xp1,yp1) and (xp2,yp2) find the shortest distance between point (px,py) and the line.

                                             M
P1 (xp1,yp1) x---------------------------------------x P2 (xp2,yp2)
                                                |
                                                |
                                                |
                                                |
                                                |
                                                x
                                                          P (px,py)

This is simply the magnitude of the component of vector P1->P (or P2->P) perpendicular to P1->P2.

If the point is indeed between the two endpoints as shown, then \(P1M + P2M = P1P2\). If not, \(P1M + P2M > P1P2\). In this case the closest distance is that to the nearer of the two endpoints, but the value returned is negative; i_nearest_point gives the index (0 or 1) of the nearer endpoint

Bool_t KVIDLine::PosRelToLine(Option_t* opt, Double_t px, Double_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2 )

Bool_t

bool Bool_t

Option_t

const char Option_t

KVIDLine::PosRelToLine

Bool_t PosRelToLine(Option_t *opt, Double_t px, Double_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)

Given a line segment defined by endpoints (xp1,yp1) and (xp2,yp2) test the direction of (px,py) with respect to the line in the (x,y) plane.

                                                  M
P1 (xp1,yp1) x---------------------------------------x P2 (xp2,yp2)
                                                   |
                                                   |
                                                   |
                                                   |
                                                   |
                                                   x
                                                          P (px,py)

This is given by the angle phi between vector MP (component of vector P1->P (or P2->P) perpendicular to P1->P2) and the +ve x-axis.

Point is left of line if 90<phi<270
Point is right of line if 270<phi<90
Point is above line if 0<phi<180
Point is below line if 180<phi<360

The option string is "left", "right", "above" or "below", and the result is either kTRUE or kFALSE depending on the relative position of the point and the line. E.g. in the diagram shown above, PosRelToLine("below", ...) would give kTRUE - the point is below the line.

Bool_t KVIDLine::WhereAmI(Double_t px, Double_t py, Option_t *opt)

KVIDLine::WhereAmI

Bool_t WhereAmI(Double_t px, Double_t py, Option_t *opt)

The relative position of point (px,py) with respect to the line is tested. The option string can be "left", "right", "above" or "below". WhereAmI( px, py, "above") returns kTRUE if the point is above the line etc. etc.

First of all, the closest segment/point of the line to the point is found. Then the relative position of the point and this segment/point is tested.

void KVIDLine::GetStartPoint(Double_t& x, Double_t& y) const

KVIDLine::GetStartPoint

void GetStartPoint(Double_t &x, Double_t &y) const

Coordinates of first point in line

void KVIDLine::GetEndPoint(Double_t& x, Double_t& y) const

KVIDLine::GetEndPoint

void GetEndPoint(Double_t &x, Double_t &y) const

Coordinates of last point in line

Bool_t KVIDLine::IsBetweenEndPoints(Double_t x, Double_t y, const Char_t* axis) const

Char_t

char Char_t

KVIDLine::IsBetweenEndPoints

Bool_t IsBetweenEndPoints(Double_t x, Double_t y, const Char_t *axis="") const

Returns kTRUE for point (x,y) if :

axis = "" (default) and both x and y lie inside the endpoints of the line x1 < x < x2, y1 < y < y2
axis = "x" and x lies inside the endpoints x1 < x < x2
axis = "y" and y lies inside the endpoints y1 < y < y2

Definition at line 143 of file KVIDLine.h.

#include <KVIDLine.h>

Inheritance diagram for KVIDLine:

[legend]

Classes
class	MyVector2
	A lightweight replacement for the TVector2 class. More...

Public Member Functions
	KVIDLine ()
	Default ctor.

	KVIDLine (const KVIDLine &)
	copy constructor

	KVIDLine (const TGraph &gr)
	initialize KVIDLine using TGraph copy ctor

virtual	~KVIDLine ()
	Default dtor.

Double_t	DistanceToLine (Double_t px, Double_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2, Int_t &)

Double_t	DistanceToLine (Double_t px, Double_t py, Int_t &)

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)

void	GetEndPoint (Double_t &x, Double_t &y) const

void	GetStartPoint (Double_t &x, Double_t &y) const

Bool_t	IsBetweenEndPoints (Double_t x, Double_t y, const Char_t *axis="") const

Bool_t	PosRelToLine (Option_t *opt, Double_t px, Double_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)

virtual void	WaitForPrimitive ()

Bool_t	WhereAmI (Double_t px, Double_t py, Option_t *opt)

Public Member Functions inherited from KVIDentifier
	KVIDentifier ()
	Default constructor.

	KVIDentifier (const KVIDentifier &)

	KVIDentifier (const TCutG &)
	copy a TCutG

	KVIDentifier (const TGraph &)
	copy a TGraph

virtual	~KVIDentifier ()
	Destructor.

virtual Int_t	AddPointAtTheEnd ()

virtual void	ChechHierarchy (KVIDentifier *gr)

virtual void	CloneScaleStore (Int_t newzt, Int_t newat, Double_t dy=0., Double_t sx=1., Double_t sy=1.)

Int_t	Compare (const TObject *) const

virtual Int_t	ContinueDrawing ()
	Continue to draw an existing the line.

void	Copy (TObject &obj) const
	Copy attributes of this identifier into 'obj'.

void	CopyGraph (const TGraph &)
	Copy coordinates of points from the TGraph.

void	CopyGraph (TGraph *)
	Copy coordinates of points from the TGraph.

virtual Int_t	DecreaseNumberOfPoints ()

virtual void	Delete (Option_t *option="")

virtual void	DrawClass () const

virtual TObject *	DrawClone (Option_t *option="") const

virtual void	DrawPanel ()

virtual void	Dump () const

void	ExtendLine (bool fromBeginning, Double_t Limit, Option_t *Direction)

void	ExtendLine (Double_t, Option_t *Direction="")

virtual Int_t	Fit (const char formula, Option_t option="", Option_t *goption="", Axis_t xmin=0, Axis_t xmax=0)

virtual Int_t	Fit (TF1 f1, Option_t option="", Option_t *goption="", Axis_t xmin=0, Axis_t xmax=0)

virtual void	FitPanel ()

virtual Int_t	GetA () const

virtual Int_t	GetID () const

virtual Int_t	GetMassFormula () const

KVIDGraph *	GetParent () const
	Get pointer to parent ID graph.

virtual Double_t	GetPID () const

virtual Int_t	GetZ () const

virtual Int_t	IncreaseNumberOfPoints ()

virtual Int_t	InsertPoint ()
	Insert a new point at the mouse position.

virtual Int_t	InsertSmoothPoint ()
	Insert a new point at the mouse X position using a smooth evaluation of the Y.

virtual void	Inspect () const

virtual Bool_t	OnlyZId () const

virtual void	Print (Option_t *opt) const

virtual void	ReadAsciiFile (std::ifstream &)

virtual Int_t	RemoveFirstPoint ()

virtual Int_t	RemoveLastPoint ()

virtual Int_t	RemovePoint ()

virtual Int_t	RemovePoint (Int_t i)

virtual void	SaveAs (const char filename="", Option_t option="") const

virtual void	Scale (Double_t sx=-1, Double_t sy=-1)

virtual void	Scale (TF1 sx, TF1 sy)

virtual void	SetA (Int_t atnum)

virtual void	SetAandZ (Int_t atnum, Int_t ztnum)

virtual void	SetDrawOption (Option_t *option="")

virtual void	SetFillAttributes ()

virtual void	SetLineAttributes ()

virtual void	SetMarkerAttributes ()

virtual void	SetMassFormula (Int_t mf)

virtual void	SetMaximum (Double_t maximum=-1111)

virtual void	SetMinimum (Double_t minimum=-1111)

virtual void	SetName (const char *name)

virtual void	SetOnlyZId (Bool_t onlyz=kTRUE)

void	SetParent (KVIDGraph *)
	Set pointer to parent ID graph.

virtual void	SetTitle (const char *title="")

virtual void	SetZ (Int_t ztnum)

virtual Int_t	SortPoints (Bool_t ascending=kTRUE)

virtual Bool_t	TestPoint (Double_t, Double_t)

virtual void	WriteAsciiFile (std::ofstream &, const Char_t *name_prefix="")

Public Member Functions inherited from TCutG
	TCutG ()

	TCutG (const char name, Int_t n, const Double_t x, const Double_t *y)

	TCutG (const char name, Int_t n, const Float_t x, const Float_t *y)

	TCutG (const char *name, Int_t n=0)

	TCutG (const TCutG &cutg)

	~TCutG () override

virtual Double_t	Area () const

virtual void	Center (Double_t &cx, Double_t &cy) const

TObject *	GetObjectX () const

TObject *	GetObjectY () const

const char *	GetVarX () const

const char *	GetVarY () const

virtual Double_t	IntegralHist (TH2 h, Option_t option="") const

TClass *	IsA () const override

TCutG &	operator= (const TCutG &)

void	SavePrimitive (std::ostream &out, Option_t *option="") override

virtual void	SetObjectX (TObject *obj)

virtual void	SetObjectY (TObject *obj)

virtual void	SetVarX (const char *varx)

virtual void	SetVarY (const char *vary)

void	Streamer (TBuffer &) override

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TGraph
	TGraph ()

	TGraph (const char filename, const char format="%lg %lg", Option_t *option="")

	TGraph (const TF1 f, Option_t option="")

	TGraph (const TGraph &gr)

	TGraph (const TH1 *h)

	TGraph (const TVectorD &vx, const TVectorD &vy)

	TGraph (const TVectorF &vx, const TVectorF &vy)

	TGraph (Int_t n)

	TGraph (Int_t n, const Double_t x, const Double_t y)

	TGraph (Int_t n, const Double_t *y, Double_t start=0., Double_t step=1.)

	TGraph (Int_t n, const Float_t x, const Float_t y)

	TGraph (Int_t n, const Int_t x, const Int_t y)

	~TGraph () override

virtual void	AddPoint (Double_t x, Double_t y)

virtual void	Apply (TF1 *f)

void	Browse (TBrowser *b) override

virtual Double_t	Chisquare (TF1 f1, Option_t option="") const

virtual void	ComputeRange (Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const

Int_t	DistancetoPrimitive (Int_t px, Int_t py) override

void	Draw (Option_t *chopt="") override

virtual void	DrawGraph (Int_t n, const Double_t x=nullptr, const Double_t y=nullptr, Option_t *option="")

virtual void	DrawGraph (Int_t n, const Float_t x, const Float_t y, Option_t *option="")

virtual void	DrawGraph (Int_t n, const Int_t x, const Int_t y, Option_t *option="")

virtual Double_t	Eval (Double_t x, TSpline spline=nullptr, Option_t option="") const

void	ExecuteEvent (Int_t event, Int_t px, Int_t py) override

virtual void	Expand (Int_t newsize)

virtual void	Expand (Int_t newsize, Int_t step)

TObject *	FindObject (const char *name) const override

TObject *	FindObject (const TObject *obj) const override

virtual Double_t	GetCorrelationFactor () const

virtual Double_t	GetCovariance () const

Bool_t	GetEditable () const

virtual Double_t	GetErrorX (Int_t bin) const

virtual Double_t	GetErrorXhigh (Int_t bin) const

virtual Double_t	GetErrorXlow (Int_t bin) const

virtual Double_t	GetErrorY (Int_t bin) const

virtual Double_t	GetErrorYhigh (Int_t bin) const

virtual Double_t	GetErrorYlow (Int_t bin) const

virtual Double_t *	GetEX () const

virtual Double_t *	GetEXhigh () const

virtual Double_t *	GetEXhighd () const

virtual Double_t *	GetEXlow () const

virtual Double_t *	GetEXlowd () const

virtual Double_t *	GetEY () const

virtual Double_t *	GetEYhigh () const

virtual Double_t *	GetEYhighd () const

virtual Double_t *	GetEYlow () const

virtual Double_t *	GetEYlowd () const

TF1 *	GetFunction (const char *name) const

virtual TH1F *	GetHistogram () const

TList *	GetListOfFunctions () const

Double_t	GetMaximum () const

Int_t	GetMaxSize () const

virtual Double_t	GetMean (Int_t axis=1) const

Double_t	GetMinimum () const

Int_t	GetN () const

char *	GetObjectInfo (Int_t px, Int_t py) const override

virtual Int_t	GetPoint (Int_t i, Double_t &x, Double_t &y) const

virtual Double_t	GetPointX (Int_t i) const

virtual Double_t	GetPointY (Int_t i) const

virtual Double_t	GetRMS (Int_t axis=1) const

Double_t *	GetX () const

TAxis *	GetXaxis () const

Double_t *	GetY () const

TAxis *	GetYaxis () const

virtual void	InitExpo (Double_t xmin=0, Double_t xmax=0)

virtual void	InitGaus (Double_t xmin=0, Double_t xmax=0)

virtual void	InitPolynom (Double_t xmin=0, Double_t xmax=0)

virtual void	InsertPointBefore (Int_t ipoint, Double_t x, Double_t y)

virtual Double_t	Integral (Int_t first=0, Int_t last=-1) const

TClass *	IsA () const override

virtual Bool_t	IsEditable () const

virtual Bool_t	IsHighlight () const

virtual Int_t	IsInside (Double_t x, Double_t y) const

virtual void	LeastSquareFit (Int_t m, Double_t *a, Double_t xmin=0, Double_t xmax=0)

virtual void	LeastSquareLinearFit (Int_t n, Double_t &a0, Double_t &a1, Int_t &ifail, Double_t xmin=0, Double_t xmax=0)

virtual Int_t	Merge (TCollection *list)

virtual void	MovePoints (Double_t dx, Double_t dy, Bool_t logx=kFALSE, Bool_t logy=kFALSE)

TGraph &	operator= (const TGraph &)

void	Paint (Option_t *chopt="") override

void	PaintGraph (Int_t npoints, const Double_t x, const Double_t y, Option_t *chopt)

void	PaintGrapHist (Int_t npoints, const Double_t x, const Double_t y, Option_t *chopt)

virtual void	PaintStats (TF1 *fit)

void	Print (Option_t *chopt="") const override

void	RecursiveRemove (TObject *obj) override

void	SaveAs (const char filename, Option_t option="") const override

void	SavePrimitive (std::ostream &out, Option_t *option="") override

virtual void	Scale (Double_t c1=1., Option_t *option="y")

virtual void	Set (Int_t n)

virtual void	SetEditable (Bool_t editable=kTRUE)

virtual void	SetHighlight (Bool_t set=kTRUE)

virtual void	SetHistogram (TH1F *h)

void	SetName (const char *name="") override

void	SetNameTitle (const char name="", const char title="") override

virtual void	SetPoint (Int_t i, Double_t x, Double_t y)

virtual void	SetPointX (Int_t i, Double_t x)

virtual void	SetPointY (Int_t i, Double_t y)

virtual void	SetStats (Bool_t stats=kTRUE)

void	SetTitle (const char *title="") override

virtual void	Sort (Bool_t(greater)(const TGraph , Int_t, Int_t)=&TGraph::CompareX, Bool_t ascending=kTRUE, Int_t low=0, Int_t high=-1111)

void	Streamer (TBuffer &) override

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	UseCurrentStyle () override

void	Zero (Int_t &k, Double_t AZ, Double_t BZ, Double_t E2, Double_t &X, Double_t &Y, Int_t maxiterations)

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()

void	Clear (Option_t *option="") override

TObject *	Clone (const char *newname="") const override

Int_t	Compare (const TObject *obj) const override

void	Copy (TObject &named) const override

virtual void	FillBuffer (char *&buffer)

const char *	GetName () const override

const char *	GetTitle () const override

ULong_t	Hash () const override

TClass *	IsA () const override

Bool_t	IsSortable () const override

void	ls (Option_t *option="") const override

TNamed &	operator= (const TNamed &rhs)

void	Print (Option_t *option="") const override

virtual Int_t	Sizeof () const

void	Streamer (TBuffer &) override

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)

virtual	~TObject ()

void	AbstractMethod (const char *method) const

virtual void	AppendPad (Option_t *option="")

ULong_t	CheckedHash ()

virtual const char *	ClassName () const

virtual void	Error (const char method, const char msgfmt,...) const

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)

virtual void	Fatal (const char method, const char msgfmt,...) const

virtual Option_t *	GetDrawOption () const

virtual const char *	GetIconName () const

virtual Option_t *	GetOption () const

virtual UInt_t	GetUniqueID () const

virtual Bool_t	HandleTimer (TTimer *timer)

Bool_t	HasInconsistentHash () const

virtual void	Info (const char method, const char msgfmt,...) const

virtual Bool_t	InheritsFrom (const char *classname) const

virtual Bool_t	InheritsFrom (const TClass *cl) const

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const

virtual Bool_t	IsEqual (const TObject *obj) const

virtual Bool_t	IsFolder () const

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

void	MayNotUse (const char *method) const

virtual Bool_t	Notify ()

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const

void	operator delete (void *ptr)

void	operator delete (void ptr, void vp)

void	operator delete[] (void *ptr)

void	operator delete[] (void ptr, void vp)

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)

virtual void	Pop ()

virtual Int_t	Read (const char *name)

void	ResetBit (UInt_t f)

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)

virtual void	SetUniqueID (UInt_t uid)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	Warning (const char method, const char msgfmt,...) const

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const

Public Member Functions inherited from TAttLine
	TAttLine ()

	TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)

virtual	~TAttLine ()

void	Copy (TAttLine &attline) const

Int_t	DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)

virtual Color_t	GetLineColor () const

virtual Style_t	GetLineStyle () const

virtual Width_t	GetLineWidth () const

virtual void	Modify ()

virtual void	ResetAttLine (Option_t *option="")

virtual void	SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)

virtual void	SetLineColor (Color_t lcolor)

virtual void	SetLineColorAlpha (Color_t lcolor, Float_t lalpha)

virtual void	SetLineStyle (Style_t lstyle)

virtual void	SetLineWidth (Width_t lwidth)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TAttFill
	TAttFill ()

	TAttFill (Color_t fcolor, Style_t fstyle)

virtual	~TAttFill ()

void	Copy (TAttFill &attfill) const

virtual Color_t	GetFillColor () const

virtual Style_t	GetFillStyle () const

virtual Bool_t	IsTransparent () const

virtual void	Modify ()

virtual void	ResetAttFill (Option_t *option="")

virtual void	SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)

virtual void	SetFillColor (Color_t fcolor)

virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)

virtual void	SetFillStyle (Style_t fstyle)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TAttMarker
	TAttMarker ()

	TAttMarker (Color_t color, Style_t style, Size_t msize)

virtual	~TAttMarker ()

void	Copy (TAttMarker &attmarker) const

virtual Color_t	GetMarkerColor () const

virtual Size_t	GetMarkerSize () const

virtual Style_t	GetMarkerStyle () const

virtual void	Modify ()

virtual void	ResetAttMarker (Option_t *toption="")

virtual void	SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1)

virtual void	SetMarkerColor (Color_t mcolor=1)

virtual void	SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)

virtual void	SetMarkerSize (Size_t msize=1)

virtual void	SetMarkerStyle (Style_t mstyle=1)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Static Public Member Functions
static KVIDLine *	MakeIDLine (TObject *obj, Double_t xdeb=-1., Double_t xfin=-1., Double_t np=1., Bool_t save=kFALSE)

Static Public Member Functions inherited from TCutG
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TGraph
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static Bool_t	CompareArg (const TGraph *gr, Int_t left, Int_t right)

static Bool_t	CompareRadius (const TGraph *gr, Int_t left, Int_t right)

static Bool_t	CompareX (const TGraph *gr, Int_t left, Int_t right)

static Bool_t	CompareY (const TGraph *gr, Int_t left, Int_t right)

static const char *	DeclFileName ()

Static Public Member Functions inherited from TNamed
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()

static Bool_t	GetObjectStat ()

static void	SetDtorOnly (void *obj)

static void	SetObjectStat (Bool_t stat)

Static Public Member Functions inherited from TAttLine
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TAttFill
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TAttMarker
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Width_t	GetMarkerLineWidth (Style_t style)

static Style_t	GetMarkerStyleBase (Style_t style)

Additional Inherited Members
Public Types inherited from TGraph
enum	EStatusBits

Public Types inherited from TObject
enum	EDeprecatedStatusBits

enum	EStatusBits

Public Attributes inherited from TGraph
	kClipFrame

	kIsHighlight

	kIsSortedX

	kNoStats

	kNotEditable

	kResetHisto

Public Attributes inherited from TObject
	kBitMask

	kCanDelete

	kCannotPick

	kHasUUID

	kInconsistent

	kInvalidObject

	kIsOnHeap

	kIsReferenced

	kMustCleanup

	kNoContextMenu

	kNotDeleted

	kObjInCanvas

	kOverwrite

	kSingleKey

	kWriteDelete

	kZombie

Protected Member Functions inherited from TGraph
virtual Double_t **	Allocate (Int_t newsize)

Double_t **	AllocateArrays (Int_t Narrays, Int_t arraySize)

virtual void	CopyAndRelease (Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin)

virtual Bool_t	CopyPoints (Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin)

Bool_t	CtorAllocate ()

virtual Bool_t	DoMerge (const TGraph *g)

Double_t **	ExpandAndCopy (Int_t size, Int_t iend)

virtual void	FillZero (Int_t begin, Int_t end, Bool_t from_ctor=kTRUE)

TString	SaveArray (std::ostream &out, const char suffix, Int_t frameNumber, Double_t arr)

void	SaveHistogramAndFunctions (std::ostream &out, const char varname, Int_t &frameNumber, Option_t option)

Double_t **	ShrinkAndCopy (Int_t size, Int_t iend)

virtual void	SwapPoints (Int_t pos1, Int_t pos2)

virtual void	UpdateArrays (const std::vector< Int_t > &sorting_indices, Int_t numSortedPoints, Int_t low)

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const

void	MakeZombie ()

Static Protected Member Functions inherited from TGraph
static void	SwapValues (Double_t *arr, Int_t pos1, Int_t pos2)

Protected Attributes inherited from TCutG
TObject *	fObjectX

TObject *	fObjectY

TString	fVarX

TString	fVarY

Protected Attributes inherited from TGraph
TList *	fFunctions

TH1F *	fHistogram

Double_t	fMaximum

Int_t	fMaxSize

Double_t	fMinimum

Int_t	fNpoints

Double_t *	fX

Double_t *	fY

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Protected Attributes inherited from TObject
	kOnlyPrepStep

Protected Attributes inherited from TAttLine
Color_t	fLineColor

Style_t	fLineStyle

Width_t	fLineWidth

Protected Attributes inherited from TAttFill
Color_t	fFillColor

Style_t	fFillStyle

Protected Attributes inherited from TAttMarker
Color_t	fMarkerColor

Size_t	fMarkerSize

Style_t	fMarkerStyle

Constructor & Destructor Documentation

◆ KVIDLine() [1/3]

KVIDLine::KVIDLine ( )

Default ctor.

Definition at line 38 of file KVIDLine.cpp.

◆ KVIDLine() [2/3]

KVIDLine::KVIDLine ( const TGraph & gr )

initialize KVIDLine using TGraph copy ctor

Definition at line 69 of file KVIDLine.cpp.

◆ KVIDLine() [3/3]

KVIDLine::KVIDLine ( const KVIDLine & obj )

copy constructor

Definition at line 58 of file KVIDLine.cpp.

◆ ~KVIDLine()

KVIDLine::~KVIDLine ( )

virtual

Default dtor.

Definition at line 48 of file KVIDLine.cpp.

Member Function Documentation

◆ DistanceToLine() [1/2]

Double_t KVIDLine::DistanceToLine	(	Double_t	px,
		Double_t	py,
		Double_t	xp1,
		Double_t	yp1,
		Double_t	xp2,
		Double_t	yp2,
		Int_t &	i_nearest_point
	)

inline

Definition at line 310 of file KVIDLine.h.

◆ DistanceToLine() [2/2]

Double_t KVIDLine::DistanceToLine	(	Double_t	px,
		Double_t	py,
		Int_t &	i_near
	)

inline

Compute the closest distance of approach from point px,py to this line. The units of px, py are the same as the coordinates of the graph

WARNING: result can be NEGATIVE - see below.

The distance from the point to each segment is calculated in turn.

If the point lies between the endpoints of at least one segment, the returned distance will be the closest of these segments. In this case i_near gives the index of the first point of the closest segment.

If not then the distance is the smallest distance between the endpoint of a segment and the point. In this case i_near gives the index of the closest endpoint. If the closest segment-endpoint is not one of the endpoints of the whole line, the returned distance is positive. On the other hand, if the closest part of the line to the point is one of the two endpoints of the line, the returned distance is NEGATIVE.

distance = closest approach to a segment with point lying between endpoints dist2 = closest approach to a segment with point outside endpoints if distance == 9999 at end, then dist2 is used

cout << "i=" << i << " X1="<<fX[i]<<" Y1="<<fY[i]<<" X2="<<fX[i+1]<<" Y2="<<fY[i+1]<<" --- d = "<<d<<endl;

point not between endpoints of segment

closest point is an 'internal' point of line - POSITIVE distance

closest point is one of endpoints of line - NEGATIVE distance

Definition at line 246 of file KVIDLine.h.

◆ ExecuteEvent()

void KVIDLine::ExecuteEvent	(	Int_t	event,
		Int_t	px,
		Int_t	py
	)

virtual

We override the TGraph::ExecuteEvent which contains a TCutG-specific part making sure that the first and last point are the same. This is a copy of that method with the "if(InheritsFrom("TCutG"))" part commented out.

Execute action corresponding to one event.

This member function is called when a graph is clicked with the locator

If Left button clicked on one of the line end points, this point follows the cursor until button is released.

if Middle button clicked, the line is moved parallel to itself until the button is released.

Reimplemented from TObject.

Definition at line 226 of file KVIDLine.cpp.

◆ GetEndPoint()

void KVIDLine::GetEndPoint	(	Double_t &	x,
		Double_t &	y
	)		const

inline

◆ GetStartPoint()

void KVIDLine::GetStartPoint	(	Double_t &	x,
		Double_t &	y
	)		const

inline

◆ IsBetweenEndPoints()

Bool_t KVIDLine::IsBetweenEndPoints	(	Double_t	x,
		Double_t	y,
		const Char_t *	axis = `""`
	)		const

inline

◆ MakeIDLine()

KVIDLine * KVIDLine::MakeIDLine	(	TObject *	obj,
		Double_t	xdeb = `-1.`,
		Double_t	xfin = `-1.`,
		Double_t	np = `1.`,
		Bool_t	save = `kFALSE`
	)

static

create an IDLine from different objects (Inherited from TProfile, TGraph, TF1)

"xdeb" and "xfin" stand for the delimitation of the line - dafault values are -1 in this case range is the one of the considered object if the choosen range is greater than the object one, one point for each limit is added with the value corresponding to the first and/or last of the object
"np" is in the TF1 case the number point (default value 20), in the TProfile case is the minimum threshold for the bin entries (default value is one); for the TGraph case it has no effect; In the TProfile and TGraph cases the number of points are determined by the object considering the interval
"save" allow to save the TF1 or TProfile object which can be recall with the GetListofFunction() method

Definition at line 88 of file KVIDLine.cpp.

◆ PosRelToLine()

Bool_t KVIDLine::PosRelToLine	(	Option_t *	opt,
		Double_t	px,
		Double_t	py,
		Double_t	xp1,
		Double_t	yp1,
		Double_t	xp2,
		Double_t	yp2
	)

inline

◆ WaitForPrimitive()

void KVIDLine::WaitForPrimitive ( )

virtual

Method used to draw a new identifier in the active pad Override in child classes so that gPad->WaitPrimitive has correct arguments

Reimplemented from KVIDentifier.

Definition at line 194 of file KVIDLine.cpp.

◆ WhereAmI()

Bool_t KVIDLine::WhereAmI	(	Double_t	px,
		Double_t	py,
		Option_t *	opt
	)

inline

Detailed Description

Classes

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ KVIDLine() [1/3]

◆ KVIDLine() [2/3]

◆ KVIDLine() [3/3]

◆ ~KVIDLine()

Member Function Documentation

◆ DistanceToLine() [1/2]

◆ DistanceToLine() [2/2]

◆ ExecuteEvent()

◆ GetEndPoint()

◆ GetStartPoint()

◆ IsBetweenEndPoints()

◆ MakeIDLine()

◆ PosRelToLine()

◆ WaitForPrimitive()

◆ WhereAmI()