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TSpider Class Reference

Spider class.

A spider view is a handy way to visualize a set of data stored in a TTree. It draws as many polar axes as selected data members. For each of them, it draws on the axis the position of the present event between the min and max of the data member. Two modes are available:

  • The spider view: With each points on the axes is drawn a polyline.
  • The segment view: For each data member is drawn an arc segment with the radius corresponding to the event.

The spider plot is available from the treeviewer called by "atree->StartViewer()", or simply by calling its constructor and defining the variables to display.

{
TCanvas *c1 = new TCanvas("c1","TSpider example",200,10,700,700);
TFile *f = new TFile("$(ROOTSYS)/tutorials/hsimple.root");
if (!f || f->IsZombie()) {
printf("Please run <ROOT location>/tutorials/hsimple.C before.");
return;
}
TNtuple* ntuple = (TNtuple*)f->Get("ntuple");
TString varexp = "px:py:pz:random:sin(px):log(px/py):log(pz)";
TString selectStr = "px>0 && py>0 && pz>0";
TString options = "average";
TSpider *spider = new TSpider(ntuple,varexp.Data(),selectStr.Data(),options.Data());
spider->Draw();
c1->ToggleEditor();
c1->Selected(c1,spider,1);
return c1;
}
#define f(i)
Definition RSha256.hxx:104
The Canvas class.
Definition TCanvas.h:23
A ROOT file is an on-disk file, usually with extension .root, that stores objects in a file-system-li...
Definition TFile.h:53
A simple TTree restricted to a list of float variables only.
Definition TNtuple.h:28
Spider class.
Definition TSpider.h:40
void Draw(Option_t *options="") override
Draw the spider.
Definition TSpider.cxx:454
TSpider()
Default constructor.
Definition TSpider.cxx:76
Basic string class.
Definition TString.h:139
const char * Data() const
Definition TString.h:376
return c1
Definition legend1.C:41

Definition at line 40 of file TSpider.h.

Public Member Functions

 TSpider ()
 Default constructor.
 
 TSpider (TTree *tree, const char *varexp, const char *selection, Option_t *option="", Long64_t nentries=0, Long64_t firstentry=0)
 Normal constructor.
 
 ~TSpider () override
 Destructor.
 
void AddSuperposed (TSpider *sp)
 Allow to superpose several spider views.
 
void AddVariable (const char *varexp)
 Add a variable to the plot from its expression.
 
void DeleteVariable (const char *varexp)
 Delete a variable from its expression.
 
Int_t DistancetoPrimitive (Int_t px, Int_t py) override
 Compute the distance to the spider.
 
void Draw (Option_t *options="") override
 Draw the spider.
 
void ExecuteEvent (Int_t event, Int_t px, Int_t py) override
 Execute the corresponding event.
 
Color_t GetAverageFillColor () const
 Get the Fill Color of the average.
 
Style_t GetAverageFillStyle () const
 Get the FillStyle of the average.
 
Color_t GetAverageLineColor () const
 Get the LineColor of the average.
 
Style_t GetAverageLineStyle () const
 Get the LineStyle of the average.
 
Width_t GetAverageLineWidth () const
 Get the LineWidth of the average.
 
Long64_t GetCurrentEntry () const
 
bool GetDisplayAverage () const
 
Long64_t GetEntriesToProcess (Long64_t firstentry, Long64_t nentries) const
 return the number of entries to be processed this function checks that nentries is not bigger than the number of entries in the Tree or in the associated TEventlist
 
Int_t GetNx () const
 
Int_t GetNy () const
 
bool GetSegmentDisplay () const
 
void GotoEntry (Long64_t e)
 Go to a specified entry.
 
void GotoFollowing ()
 Go to the next entry.
 
void GotoNext ()
 Go to the next entries.
 
void GotoPreceding ()
 Go to the last entry.
 
void GotoPrevious ()
 Go to the previous entries.
 
TClassIsA () const override
 
void Paint (Option_t *options) override
 Paint the spider.
 
void SetAverageFillColor (Color_t col)
 Set the Fill Color of the average.
 
void SetAverageFillStyle (Style_t sty)
 Set the FillStyle of the average.
 
void SetAverageLineColor (Color_t col)
 Set the LineColor of the average.
 
void SetAverageLineStyle (Style_t sty)
 Set the LineStyle of the average.
 
void SetAverageLineWidth (Width_t wid)
 Set the LineWidth of the average.
 
void SetDisplayAverage (bool disp)
 Display or not the average.
 
void SetFillColor (Color_t col) override
 Set fill color.
 
void SetFillStyle (Style_t sty) override
 Set fill style.
 
void SetLineColor (Color_t col) override
 Set lin color.
 
void SetLineStyle (Style_t sty) override
 Set line style.
 
void SetLineWidth (Width_t wid) override
 Set line width.
 
void SetNdivRadial (Int_t div)
 Set number of radial divisions.
 
void SetNx (UInt_t nx)
 Set the X number of sub pads.
 
void SetNy (UInt_t ny)
 Set the Y number of sub pads.
 
void SetSegmentDisplay (bool seg)
 Set the segment display or not.
 
void SetSelectionExpression (const char *selexp)
 Compile selection expression if there is one.
 
void SetShowRange (bool showrange)
 
void SetVariablesExpression (const char *varexp)
 Compile the variables expression from the given string varexp.
 
void Streamer (TBuffer &) override
 Stream an object of class TObject.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
void SuperposeTo (TSpider *sp)
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor.
 
 TObject (const TObject &object)
 TObject copy ctor.
 
virtual ~TObject ()
 TObject destructor.
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract.
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad.
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action.
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs.
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility.
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method.
 
virtual void Copy (TObject &object) const
 Copy this to obj.
 
virtual void Delete (Option_t *option="")
 Delete this object.
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs.
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
 
virtual void Dump () const
 Dump contents of object on stdout.
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message.
 
virtual void Execute (const char *method, const char *params, Int_t *error=nullptr)
 Execute method on this object with the given parameter string, e.g.
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
 Execute method on this object with parameters stored in the TObjArray.
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message.
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes.
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes.
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object.
 
virtual const char * GetIconName () const
 Returns mime type name of object.
 
virtual const char * GetName () const
 Returns name of object.
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py).
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object.
 
virtual UInt_t GetUniqueID () const
 Return the unique object id.
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out.
 
virtual ULong_t Hash () const
 Return hash value for this object.
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message.
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname".
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl.
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas.
 
void InvertBit (UInt_t f)
 
Bool_t IsDestructed () const
 IsDestructed.
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory).
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout.
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification (the base implementation is no-op).
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete.
 
void operator delete (void *ptr)
 Operator delete.
 
void operator delete (void *ptr, void *vp)
 Only called by placement new when throwing an exception.
 
void operator delete[] (void *ptr)
 Operator delete [].
 
void operator delete[] (void *ptr, void *vp)
 Only called by placement new[] when throwing an exception.
 
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)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator.
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list.
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself.
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory.
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list.
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename.
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out".
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f.
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object.
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message.
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory.
 
- Public Member Functions inherited from TAttFill
 TAttFill ()
 AttFill default constructor.
 
 TAttFill (Color_t fcolor, Style_t fstyle)
 AttFill normal constructor.
 
virtual ~TAttFill ()
 AttFill destructor.
 
void Copy (TAttFill &attfill) const
 Copy this fill attributes to a new TAttFill.
 
virtual Color_t GetFillColor () const
 Return the fill area color.
 
virtual Style_t GetFillStyle () const
 Return the fill area style.
 
virtual Bool_t IsTransparent () const
 
virtual void Modify ()
 Change current fill area attributes if necessary.
 
virtual void ResetAttFill (Option_t *option="")
 Reset this fill attributes to default values.
 
virtual void SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
 Save fill attributes as C++ statement(s) on output stream out.
 
virtual void SetFillAttributes ()
 Invoke the DialogCanvas Fill attributes.
 
virtual void SetFillColorAlpha (Color_t fcolor, Float_t falpha)
 Set a transparent fill color.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TAttLine
 TAttLine ()
 AttLine default constructor.
 
 TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)
 AttLine normal constructor.
 
virtual ~TAttLine ()
 AttLine destructor.
 
void Copy (TAttLine &attline) const
 Copy this line attributes to a new TAttLine.
 
Int_t DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
 Compute distance from point px,py to a line.
 
virtual Color_t GetLineColor () const
 Return the line color.
 
virtual Style_t GetLineStyle () const
 Return the line style.
 
virtual Width_t GetLineWidth () const
 Return the line width.
 
virtual void Modify ()
 Change current line attributes if necessary.
 
virtual void ResetAttLine (Option_t *option="")
 Reset this line attributes to default values.
 
virtual void SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
 Save line attributes as C++ statement(s) on output stream out.
 
virtual void SetLineAttributes ()
 Invoke the DialogCanvas Line attributes.
 
virtual void SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
 Set a transparent line color.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 

Static Public Member Functions

static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TObject
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Longptr_t GetDtorOnly ()
 Return destructor only flag.
 
static Bool_t GetObjectStat ()
 Get status of object stat flag.
 
static void SetDtorOnly (void *obj)
 Set destructor only flag.
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable.
 
- Static Public Member Functions inherited from TAttFill
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TAttLine
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 

Private Member Functions

void DrawPoly (Option_t *options)
 Paint the polygon representing the current entry.
 
void DrawPolyAverage (Option_t *options)
 Paint the Polygon representing the average value of the variables.
 
void DrawSlices (Option_t *options)
 Draw the slices of the segment plot.
 
void DrawSlicesAverage (Option_t *options)
 Draw the slices representing the average for the segment plot.
 
Int_t FindTextAlign (Double_t theta)
 Find the alignement rule to apply for TText::SetTextAlign(Short_t).
 
Double_t FindTextAngle (Double_t theta)
 Determine the orientation of the polar labels according to their angle.
 
void InitArrays (Int_t newsize)
 Check if the arrays size is enough and reallocate them if not.
 
void InitVariables (Long64_t firstentry, Long64_t nentries)
 Browse the tree to set the min, max and average value of each variable of fVar.
 
void SetCurrentEntries ()
 Set the current selected entries.
 
void SyncFormulas ()
 Create a TreeFormulaManager to coordinate the formulas.
 
void UpdateView ()
 Update the polylines or the arcs for the current entries.
 

Private Attributes

bool fAngularLabels
 True if the labels are oriented according to their axis.
 
Int_t fArraySize
 Actual size of the arrays.
 
Double_tfAve
 [fNcols] Average value of each variable.
 
TPolyLinefAveragePoly
 Polygon representing the average variables value.
 
TArc ** fAverageSlices
 ! Average slices.
 
TCanvasfCanvas
 ! Pointer to the mother pad.
 
Long64_tfCurrentEntries
 ![fNx*fNy] current selected entries;
 
bool fDisplayAverage
 Display or not the average.
 
Long64_t fEntry
 Present entry number in fTree.
 
Long64_t fFirstEntry
 First entry.
 
bool fForceDim
 Force dimension.
 
TListfFormulas
 List of all formulas to represent.
 
TListfInput
 Used for fSelector.
 
TTreeFormulaManagerfManager
 Coordinator for the formulas.
 
Double_tfMax
 [fNcols] Maximum value of the variables.
 
Double_tfMin
 [fNcols] Minimum value of the variables.
 
UInt_t fNcols
 Number of variables.
 
Long64_t fNentries
 Number of entries.
 
UInt_t fNx
 Number of horizontal spider plots.
 
UInt_t fNy
 Number of vertical spider plots.
 
TGraphPolargramfPolargram
 Polar graph.
 
TListfPolyList
 Polygons representing the variables.
 
bool fSegmentDisplay
 True if displaying a segment plot.
 
TTreeFormulafSelect
 Selection condition.
 
TSelectorDrawfSelector
 ! Selector.
 
bool fShowRange
 Show range of variables or not.
 
TListfSuperposed
 Superposed spider plots.
 
TTreefTree
 Pointer to the TTree to represent.
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }
 
enum  EStatusBits {
  kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) ,
  kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 ))
}
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = (1ULL << ( 3 )) }
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected).
 
void MakeZombie ()
 
- Protected Attributes inherited from TAttFill
Color_t fFillColor
 Fill area color.
 
Style_t fFillStyle
 Fill area style.
 
- Protected Attributes inherited from TAttLine
Color_t fLineColor
 Line color.
 
Style_t fLineStyle
 Line style.
 
Width_t fLineWidth
 Line width.
 

#include <TSpider.h>

Inheritance diagram for TSpider:
[legend]

Constructor & Destructor Documentation

◆ TSpider() [1/2]

TSpider::TSpider ( )

Default constructor.

Definition at line 76 of file TSpider.cxx.

◆ TSpider() [2/2]

TSpider::TSpider ( TTree tree,
const char *  varexp,
const char *  selection,
Option_t option = "",
Long64_t  nentries = 0,
Long64_t  firstentry = 0 
)

Normal constructor.

Options are:

  • "average"
  • "showrange"
  • "segment"

Definition at line 114 of file TSpider.cxx.

◆ ~TSpider()

TSpider::~TSpider ( )
override

Destructor.

Definition at line 174 of file TSpider.cxx.

Member Function Documentation

◆ AddSuperposed()

void TSpider::AddSuperposed ( TSpider sp)

Allow to superpose several spider views.

Definition at line 206 of file TSpider.cxx.

◆ AddVariable()

void TSpider::AddVariable ( const char *  varexp)

Add a variable to the plot from its expression.

Definition at line 215 of file TSpider.cxx.

◆ Class()

static TClass * TSpider::Class ( )
static
Returns
TClass describing this class

◆ Class_Name()

static const char * TSpider::Class_Name ( )
static
Returns
Name of this class

◆ Class_Version()

static constexpr Version_t TSpider::Class_Version ( )
inlinestaticconstexpr
Returns
Version of this class

Definition at line 131 of file TSpider.h.

◆ DeclFileName()

static const char * TSpider::DeclFileName ( )
inlinestatic
Returns
Name of the file containing the class declaration

Definition at line 131 of file TSpider.h.

◆ DeleteVariable()

void TSpider::DeleteVariable ( const char *  varexp)

Delete a variable from its expression.

Definition at line 353 of file TSpider.cxx.

◆ DistancetoPrimitive()

Int_t TSpider::DistancetoPrimitive ( Int_t  px,
Int_t  py 
)
overridevirtual

Compute the distance to the spider.

Reimplemented from TObject.

Definition at line 439 of file TSpider.cxx.

◆ Draw()

void TSpider::Draw ( Option_t options = "")
overridevirtual

Draw the spider.

Reimplemented from TObject.

Definition at line 454 of file TSpider.cxx.

◆ DrawPoly()

void TSpider::DrawPoly ( Option_t options)
private

Paint the polygon representing the current entry.

Definition at line 530 of file TSpider.cxx.

◆ DrawPolyAverage()

void TSpider::DrawPolyAverage ( Option_t options)
private

Paint the Polygon representing the average value of the variables.

Definition at line 492 of file TSpider.cxx.

◆ DrawSlices()

void TSpider::DrawSlices ( Option_t options)
private

Draw the slices of the segment plot.

Definition at line 560 of file TSpider.cxx.

◆ DrawSlicesAverage()

void TSpider::DrawSlicesAverage ( Option_t options)
private

Draw the slices representing the average for the segment plot.

Definition at line 586 of file TSpider.cxx.

◆ ExecuteEvent()

void TSpider::ExecuteEvent ( Int_t  event,
Int_t  px,
Int_t  py 
)
overridevirtual

Execute the corresponding event.

Reimplemented from TObject.

Definition at line 667 of file TSpider.cxx.

◆ FindTextAlign()

Int_t TSpider::FindTextAlign ( Double_t  theta)
private

Find the alignement rule to apply for TText::SetTextAlign(Short_t).

Definition at line 676 of file TSpider.cxx.

◆ FindTextAngle()

Double_t TSpider::FindTextAngle ( Double_t  theta)
private

Determine the orientation of the polar labels according to their angle.

Definition at line 705 of file TSpider.cxx.

◆ GetAverageFillColor()

Color_t TSpider::GetAverageFillColor ( ) const

Get the Fill Color of the average.

Definition at line 647 of file TSpider.cxx.

◆ GetAverageFillStyle()

Style_t TSpider::GetAverageFillStyle ( ) const

Get the FillStyle of the average.

Definition at line 657 of file TSpider.cxx.

◆ GetAverageLineColor()

Color_t TSpider::GetAverageLineColor ( ) const

Get the LineColor of the average.

Definition at line 627 of file TSpider.cxx.

◆ GetAverageLineStyle()

Style_t TSpider::GetAverageLineStyle ( ) const

Get the LineStyle of the average.

Definition at line 617 of file TSpider.cxx.

◆ GetAverageLineWidth()

Width_t TSpider::GetAverageLineWidth ( ) const

Get the LineWidth of the average.

Definition at line 637 of file TSpider.cxx.

◆ GetCurrentEntry()

Long64_t TSpider::GetCurrentEntry ( ) const
inline

Definition at line 100 of file TSpider.h.

◆ GetDisplayAverage()

bool TSpider::GetDisplayAverage ( ) const
inline

Definition at line 99 of file TSpider.h.

◆ GetEntriesToProcess()

Long64_t TSpider::GetEntriesToProcess ( Long64_t  firstentry,
Long64_t  nentries 
) const

return the number of entries to be processed this function checks that nentries is not bigger than the number of entries in the Tree or in the associated TEventlist

Definition at line 727 of file TSpider.cxx.

◆ GetNx()

Int_t TSpider::GetNx ( ) const
inline

Definition at line 102 of file TSpider.h.

◆ GetNy()

Int_t TSpider::GetNy ( ) const
inline

Definition at line 103 of file TSpider.h.

◆ GetSegmentDisplay()

bool TSpider::GetSegmentDisplay ( ) const
inline

Definition at line 104 of file TSpider.h.

◆ GotoEntry()

void TSpider::GotoEntry ( Long64_t  e)

Go to a specified entry.

Definition at line 744 of file TSpider.cxx.

◆ GotoFollowing()

void TSpider::GotoFollowing ( )

Go to the next entry.

Definition at line 774 of file TSpider.cxx.

◆ GotoNext()

void TSpider::GotoNext ( )

Go to the next entries.

Definition at line 754 of file TSpider.cxx.

◆ GotoPreceding()

void TSpider::GotoPreceding ( )

Go to the last entry.

Definition at line 784 of file TSpider.cxx.

◆ GotoPrevious()

void TSpider::GotoPrevious ( )

Go to the previous entries.

Definition at line 764 of file TSpider.cxx.

◆ InitArrays()

void TSpider::InitArrays ( Int_t  newsize)
private

Check if the arrays size is enough and reallocate them if not.

Definition at line 794 of file TSpider.cxx.

◆ InitVariables()

void TSpider::InitVariables ( Long64_t  firstentry,
Long64_t  nentries 
)
private

Browse the tree to set the min, max and average value of each variable of fVar.

Definition at line 832 of file TSpider.cxx.

◆ IsA()

TClass * TSpider::IsA ( ) const
inlineoverridevirtual
Returns
TClass describing current object

Reimplemented from TObject.

Definition at line 131 of file TSpider.h.

◆ Paint()

void TSpider::Paint ( Option_t options)
overridevirtual

Paint the spider.

Reimplemented from TObject.

Definition at line 918 of file TSpider.cxx.

◆ SetAverageFillColor()

void TSpider::SetAverageFillColor ( Color_t  col)

Set the Fill Color of the average.

Definition at line 1001 of file TSpider.cxx.

◆ SetAverageFillStyle()

void TSpider::SetAverageFillStyle ( Style_t  sty)

Set the FillStyle of the average.

Definition at line 1013 of file TSpider.cxx.

◆ SetAverageLineColor()

void TSpider::SetAverageLineColor ( Color_t  col)

Set the LineColor of the average.

Definition at line 977 of file TSpider.cxx.

◆ SetAverageLineStyle()

void TSpider::SetAverageLineStyle ( Style_t  sty)

Set the LineStyle of the average.

Definition at line 965 of file TSpider.cxx.

◆ SetAverageLineWidth()

void TSpider::SetAverageLineWidth ( Width_t  wid)

Set the LineWidth of the average.

Definition at line 989 of file TSpider.cxx.

◆ SetCurrentEntries()

void TSpider::SetCurrentEntries ( )
private

Set the current selected entries.

Definition at line 1067 of file TSpider.cxx.

◆ SetDisplayAverage()

void TSpider::SetDisplayAverage ( bool  disp)

Display or not the average.

Definition at line 1025 of file TSpider.cxx.

◆ SetFillColor()

void TSpider::SetFillColor ( Color_t  col)
overridevirtual

Set fill color.

Reimplemented from TAttFill.

Definition at line 1185 of file TSpider.cxx.

◆ SetFillStyle()

void TSpider::SetFillStyle ( Style_t  sty)
overridevirtual

Set fill style.

Reimplemented from TAttFill.

Definition at line 1201 of file TSpider.cxx.

◆ SetLineColor()

void TSpider::SetLineColor ( Color_t  col)
overridevirtual

Set lin color.

Reimplemented from TAttLine.

Definition at line 1153 of file TSpider.cxx.

◆ SetLineStyle()

void TSpider::SetLineStyle ( Style_t  sty)
overridevirtual

Set line style.

Reimplemented from TAttLine.

Definition at line 1137 of file TSpider.cxx.

◆ SetLineWidth()

void TSpider::SetLineWidth ( Width_t  wid)
overridevirtual

Set line width.

Reimplemented from TAttLine.

Definition at line 1169 of file TSpider.cxx.

◆ SetNdivRadial()

void TSpider::SetNdivRadial ( Int_t  div)

Set number of radial divisions.

Definition at line 1217 of file TSpider.cxx.

◆ SetNx()

void TSpider::SetNx ( UInt_t  nx)

Set the X number of sub pads.

Definition at line 1226 of file TSpider.cxx.

◆ SetNy()

void TSpider::SetNy ( UInt_t  ny)

Set the Y number of sub pads.

Definition at line 1303 of file TSpider.cxx.

◆ SetSegmentDisplay()

void TSpider::SetSegmentDisplay ( bool  seg)

Set the segment display or not.

Definition at line 1380 of file TSpider.cxx.

◆ SetSelectionExpression()

void TSpider::SetSelectionExpression ( const char *  selexp)

Compile selection expression if there is one.

Definition at line 1471 of file TSpider.cxx.

◆ SetShowRange()

void TSpider::SetShowRange ( bool  showrange)
inline

Definition at line 128 of file TSpider.h.

◆ SetVariablesExpression()

void TSpider::SetVariablesExpression ( const char *  varexp)

Compile the variables expression from the given string varexp.

Definition at line 1484 of file TSpider.cxx.

◆ Streamer()

void TSpider::Streamer ( TBuffer R__b)
overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

◆ StreamerNVirtual()

void TSpider::StreamerNVirtual ( TBuffer ClassDef_StreamerNVirtual_b)
inline

Definition at line 131 of file TSpider.h.

◆ SuperposeTo()

void TSpider::SuperposeTo ( TSpider sp)
inline

Definition at line 129 of file TSpider.h.

◆ SyncFormulas()

void TSpider::SyncFormulas ( )
private

Create a TreeFormulaManager to coordinate the formulas.

Definition at line 1522 of file TSpider.cxx.

◆ UpdateView()

void TSpider::UpdateView ( )
private

Update the polylines or the arcs for the current entries.

Definition at line 1554 of file TSpider.cxx.

Member Data Documentation

◆ fAngularLabels

bool TSpider::fAngularLabels
private

True if the labels are oriented according to their axis.

Definition at line 65 of file TSpider.h.

◆ fArraySize

Int_t TSpider::fArraySize
private

Actual size of the arrays.

Definition at line 45 of file TSpider.h.

◆ fAve

Double_t* TSpider::fAve
private

[fNcols] Average value of each variable.

Definition at line 50 of file TSpider.h.

◆ fAveragePoly

TPolyLine* TSpider::fAveragePoly
private

Polygon representing the average variables value.

Definition at line 55 of file TSpider.h.

◆ fAverageSlices

TArc** TSpider::fAverageSlices
private

! Average slices.

Definition at line 56 of file TSpider.h.

◆ fCanvas

TCanvas* TSpider::fCanvas
private

! Pointer to the mother pad.

Definition at line 57 of file TSpider.h.

◆ fCurrentEntries

Long64_t* TSpider::fCurrentEntries
private

![fNx*fNy] current selected entries;

Definition at line 49 of file TSpider.h.

◆ fDisplayAverage

bool TSpider::fDisplayAverage
private

Display or not the average.

Definition at line 66 of file TSpider.h.

◆ fEntry

Long64_t TSpider::fEntry
private

Present entry number in fTree.

Definition at line 46 of file TSpider.h.

◆ fFirstEntry

Long64_t TSpider::fFirstEntry
private

First entry.

Definition at line 48 of file TSpider.h.

◆ fForceDim

bool TSpider::fForceDim
private

Force dimension.

Definition at line 67 of file TSpider.h.

◆ fFormulas

TList* TSpider::fFormulas
private

List of all formulas to represent.

Definition at line 58 of file TSpider.h.

◆ fInput

TList* TSpider::fInput
private

Used for fSelector.

Definition at line 59 of file TSpider.h.

◆ fManager

TTreeFormulaManager* TSpider::fManager
private

Coordinator for the formulas.

Definition at line 60 of file TSpider.h.

◆ fMax

Double_t* TSpider::fMax
private

[fNcols] Maximum value of the variables.

Definition at line 51 of file TSpider.h.

◆ fMin

Double_t* TSpider::fMin
private

[fNcols] Minimum value of the variables.

Definition at line 52 of file TSpider.h.

◆ fNcols

UInt_t TSpider::fNcols
private

Number of variables.

Definition at line 44 of file TSpider.h.

◆ fNentries

Long64_t TSpider::fNentries
private

Number of entries.

Definition at line 47 of file TSpider.h.

◆ fNx

UInt_t TSpider::fNx
private

Number of horizontal spider plots.

Definition at line 42 of file TSpider.h.

◆ fNy

UInt_t TSpider::fNy
private

Number of vertical spider plots.

Definition at line 43 of file TSpider.h.

◆ fPolargram

TGraphPolargram* TSpider::fPolargram
private

Polar graph.

Definition at line 61 of file TSpider.h.

◆ fPolyList

TList* TSpider::fPolyList
private

Polygons representing the variables.

Definition at line 62 of file TSpider.h.

◆ fSegmentDisplay

bool TSpider::fSegmentDisplay
private

True if displaying a segment plot.

Definition at line 68 of file TSpider.h.

◆ fSelect

TTreeFormula* TSpider::fSelect
private

Selection condition.

Definition at line 63 of file TSpider.h.

◆ fSelector

TSelectorDraw* TSpider::fSelector
private

! Selector.

Definition at line 64 of file TSpider.h.

◆ fShowRange

bool TSpider::fShowRange
private

Show range of variables or not.

Definition at line 69 of file TSpider.h.

◆ fSuperposed

TList* TSpider::fSuperposed
private

Superposed spider plots.

Definition at line 53 of file TSpider.h.

◆ fTree

TTree* TSpider::fTree
private

Pointer to the TTree to represent.

Definition at line 54 of file TSpider.h.

Libraries for TSpider:

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