TSpectrum2Painter Class Reference

Two-dimensional graphics function.

TSpectrum2Painter is a set of graphical functions developed by Miroslav Morhac to paint 2D-histograms in three dimensions. This package is accessed via THistPainter in a transparent way. For the ROOT user it is enough to use the "SPEC" option to draw a 2D-Histogram. This option offers many functionalities detailed in the header of the PaintSpectrum function.

Reference:

Morhac M., Kliman J., Matousek V., Turzo I.: Sophisticated visualization algorithms for analysis of multidimensional experimental nuclear data. Acta Pysica Slovaca Vol. 54/ 4 (2004), pp. 385-400.

Definition at line 30 of file TSpectrum2Painter.h.

Public Types
enum	{   kModeGroupSimple =0 , kModeGroupHeight =1 , kModeGroupLight =2 , kModeGroupLightHeight =3 ,   kDisplayModePoints =1 , kDisplayModeGrid =2 , kDisplayModeContours =3 , kDisplayModeBars =4 ,   kDisplayModeLinesX =5 , kDisplayModeLinesY =6 , kDisplayModeBarsX =7 , kDisplayModeBarsY =8 ,   kDisplayModeNeedles =9 , kDisplayModeSurface =10 , kDisplayModeTriangles =11 , kZScaleLinear =0 ,   kZScaleLog =1 , kZScaleSqrt =2 , kColorAlgRgbSmooth =0 , kColorAlgRgbModulo =1 ,   kColorAlgCmySmooth =2 , kColorAlgCmyModulo =3 , kColorAlgCieSmooth =4 , kColorAlgCieModulo =5 ,   kColorAlgYiqSmooth =6 , kColorAlgYiqModulo =7 , kColorAlgHvsSmooth =8 , kColorAlgHvsModulo =9 ,   kShadowsNotPainted =0 , kShadowsPainted =1 , kNotShaded =0 , kShaded =1 ,   kNoBezierInterpol =0 , kBezierInterpol =1 , kPenStyleSolid =1 , kPenStyleDash =2 ,   kPenStyleDot =3 , kPenStyleDashDot =4 , kChannelMarksNotDrawn =0 , kChannelMarksDrawn =1 ,   kChannelMarksStyleDot =1 , kChannelMarksStyleCross =2 , kChannelMarksStyleStar =3 , kChannelMarksStyleRectangle =4 ,   kChannelMarksStyleX =5 , kChannelMarksStyleDiamond =6 , kChannelMarksStyleTriangle =7 , kChannelGridNotDrawn =0 ,   kChannelGridDrawn =1 }
Public Types inherited from TObject
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
enum	EStatusBits {   kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,   kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }

Public Member Functions
	TSpectrum2Painter (TH2 *h2, Int_t bs)
	TSpectrum2Painter normal constructor.
virtual	~TSpectrum2Painter ()
	TSpectrum2Painter destructor.
void	GetAngles (Int_t &alpha, Int_t &beta, Int_t &view)
	Gets angles of the view:
void	GetBezier (Int_t &bezier)
	Gets Bezier smoothing switch:
void	GetChanGrid (Int_t &enable, Int_t &color)
	This function gets attributes for drawing channel:
void	GetChanMarks (Int_t &enable, Int_t &color, Int_t &width, Int_t &height, Int_t &style)
	Gets drawing attributes for channel marks:
void	GetColorAlgorithm (Int_t &colorAlgorithm)
	Gets shading color algorithm:
void	GetColorIncrements (Double_t &r, Double_t &g, Double_t &b)
	Gets color increments between two color levels for r, g, b components:
void	GetContourWidth (Int_t &width)
	Gets width between horizontal slices:
void	GetDisplayMode (Int_t &modeGroup, Int_t &displayMode)
	Gets display group mode and display mode: -modeGroup - the following group modes might have been set: simple modes-kPicture2ModeGroupSimple, modes with shading according to light-kPicture2ModeGroupLight, modes with shading according to channels counts-kPicture2ModeGroupHeight, modes of combination of shading according to light and to channels counts-kPicture2ModeGroupLightHeight -displayMode - display modes that might have been set: points, grid, contours, bars, x_lines, y_lines, bars_x, bars_y, needles, surface, triangles.
void	GetLightHeightWeight (Double_t &weight)
	Gets weight between shading according to fictive light source and according to channels counts:
void	GetLightPosition (Int_t &x, Int_t &y, Int_t &z)
	Gets position of fictive light source in 3D space:
void	GetNodes (Int_t &nodesx, Int_t &nodesy)
	Gets nodes in both directions:
void	GetPenAttr (Int_t &color, Int_t &style, Int_t &width)
	Gets pen attributes: -color - color of spectrum -style - style of pen (solid, dash, dot, dash-dot) -width - width of pen in pixels.
void	GetShading (Int_t &shading, Int_t &shadow)
	Gets shading and shadow switches:
void	GetZScale (Int_t &scale)
	Gets z-axis scale:
void	Paint (Option_t *option)
	Paints histogram according to preset parameters.
void	SetAngles (Int_t alpha, Int_t beta, Int_t view)
	Sets angles of the view:
void	SetBezier (Int_t bezier)
	Sets on/off Bezier smoothing:
void	SetChanGrid (Int_t enable, Int_t color)
	This function sets enables/disables drawing of channel grid and sets its color: -enable - decides whether the channel grid is shown or not -color - color of channel grid.
void	SetChanMarks (Int_t enable, Int_t color, Int_t width, Int_t height, Int_t style)
	Sets enables/disables drawing of channel marks and sets their attributes:
void	SetColorAlgorithm (Int_t colorAlgorithm)
	Sets shading color algorithm:
void	SetColorIncrements (Double_t r, Double_t g, Double_t b)
	Sets color increments between two color levels for r, g, b components:
void	SetContourWidth (Int_t width)
	Sets width between horizontal slices:
void	SetDisplayMode (Int_t modeGroup, Int_t displayMode)
	Sets display group mode and display mode:
void	SetLightHeightWeight (Double_t weight)
	Sets weight between shading according to fictive light source and according to channels counts:
void	SetLightPosition (Int_t x, Int_t y, Int_t z)
	Sets position of fictive light source in 3D space:
void	SetNodes (Int_t nodesx, Int_t nodesy)
	Sets nodes in both directions:
void	SetPenAttr (Int_t color, Int_t style, Int_t width)
	Sets pen attributes:
void	SetShading (Int_t shading, Int_t shadow)
	Sets on/off shading and shadow switches:
void	SetZScale (Int_t scale)
	Sets z-axis scale:
Public Member Functions inherited from TNamed
	TNamed ()
	TNamed (const char *name, const char *title)
	TNamed (const TNamed &named)
	TNamed copy ctor.
	TNamed (const TString &name, const TString &title)
virtual	~TNamed ()
	TNamed destructor.
virtual void	Clear (Option_t *option="")
	Set name and title to empty strings ("").
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.
virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects.
virtual void	Copy (TObject &named) const
	Copy this to obj.
virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.
virtual const char *	GetName () const
	Returns name of object.
virtual const char *	GetTitle () const
	Returns title of object.
virtual ULong_t	Hash () const
	Return hash value for this object.
virtual Bool_t	IsSortable () const
virtual void	ls (Option_t *option="") const
	List TNamed name and title.
TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.
virtual void	Print (Option_t *option="") const
	Print TNamed name and title.
virtual void	SetName (const char *name)
	Set the name of the TNamed.
virtual void	SetNameTitle (const char *name, const char *title)
	Set all the TNamed parameters (name and title).
virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.
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	Delete (Option_t *option="")
	Delete this object.
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.
virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad).
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=0)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message.
virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.
virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.
virtual const char *	GetIconName () const
	Returns mime type 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_t *	GetOption () const
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.
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)
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
R__ALWAYS_INLINE Bool_t	IsZombie () const
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.
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)
	Operator delete [].
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)
	TObject assignment operator.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
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.
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=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static void	PaintSpectrum (TH2 *h2, Option_t *option="", Int_t bs=1600)
	This function allows to set all the possible options available in TSpectrum2Painter and paint "h2".
Static Public Member Functions inherited from TObject
static Long_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.

Protected Member Functions
Int_t	BezC (Int_t i)
	This function is called from BezierBlend function.
Double_t	BezierBlend (Int_t i, Double_t bezf)
	This function calculates Bezier approximation.
void	BezierSmoothing (Double_t bezf)
	Calculates screen coordinates of the smoothed point.
Double_t	ColorCalculation (Double_t dx1, Double_t dy1, Double_t z1, Double_t dx2, Double_t dy2, Double_t z2, Double_t dx3, Double_t dy3, Double_t z3)
	Calculates and returns color value for the surface triangle given by function parameters: -dx1,dy1,z1 coordinates of the first point in 3d space -dx2,dy2,z2 coordinates of the second point in 3d space -dx3,dy3,z3 coordinates of the third point in 3d space.
void	ColorModel (unsigned ui, unsigned ui1, unsigned ui2, unsigned ui3)
	This function calculates color for one palette entry given by function parameter ui.
void	CopyEnvelope (Double_t xr, Double_t xs, Double_t yr, Double_t ys)
	Copies envelope vector, which ensures hidden surface removal for the contours display mode.
void	DrawMarker (Int_t x, Int_t y, Int_t w, Int_t h, Int_t type)
	Draws channel mark at the screen coordinates x, y.
void	Envelope (Int_t x1, Int_t y1, Int_t x2, Int_t y2)
	Ensures hidden surface removal.
void	EnvelopeBars (Int_t x1, Int_t y1, Int_t x2, Int_t y2)
	Ensures hidden surface removal for Bars, BarsX and BarsY display modes.
Double_t	ShadowColorCalculation (Double_t xtaz, Double_t ytaz, Double_t ztaz, Double_t shad_noise)
	Determines whether the center of the triangle in 3-d space given by function parameters:
void	Slice (Double_t xr, Double_t yr, Double_t xs, Double_t ys, TLine *line)
	Calculates screen coordinates of the line given by two nodes for contours display mode.
void	Transform (Int_t it, Int_t jt, Int_t zmt)
	Reads out the value from histogram and calculates screen coordinates.
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
Int_t	fAlpha
Int_t	fBeta
Int_t	fBezier
Int_t	fBx1
Int_t	fBx2
Int_t	fBy1
Int_t	fBy2
Int_t	fBzX [4]
Int_t	fBzY [4]
Int_t	fChanlineColor
Int_t	fChanlineEnDis
Int_t	fChanmarkColor
Int_t	fChanmarkEnDis
Int_t	fChanmarkHeight
Int_t	fChanmarkStyle
Int_t	fChanmarkWidth
Int_t	fColorAlg
Int_t	fContWidth
Int_t	fDisplayMode
Double_t	fDxspline
Double_t	fDyspline
Short_t *	fEnvelope
Short_t *	fEnvelopeContour
Double_t	fGbezx
Double_t	fGbezy
TH2 *	fH2
Double_t	fKx
Double_t	fKy
Int_t	fLevels
Double_t	fLHweight
Int_t	fLine
Int_t	fMaximumXScreenResolution
Int_t	fModeGroup
Double_t	fMxx
Double_t	fMxy
Double_t	fMyx
Double_t	fMyy
TColor *	fNewColor
Int_t	fNewColorIndex
	buffers' size
Int_t	fNodesx
Int_t	fNodesy
Double_t	fNuSli
Int_t	fPenColor
Int_t	fPenDash
Int_t	fPenWidth
Double_t	fRainbow1Step
Double_t	fRainbow2Step
Double_t	fRainbow3Step
Int_t	fShading
Int_t	fShadow
Double_t	fTxx
Double_t	fTxy
Double_t	fTyx
Double_t	fTyy
Double_t	fTyz
Int_t	fViewAngle
Double_t	fVx
Double_t	fVy
Int_t	fXe
Int_t	fXlight
Int_t	fXmax
Int_t	fXmin
Int_t	fXs
Int_t	fXt
Int_t	fYe
Int_t	fYlight
Int_t	fYmax
Int_t	fYmin
Int_t	fYs
Int_t	fYt
Double_t	fZ
Double_t	fZeq
Int_t	fZlight
Double_t	fZmax
Double_t	fZmin
Double_t	fZPresetValue
Int_t	fZscale
Protected Attributes inherited from TNamed
TString	fName
TString	fTitle

Private Member Functions
	TSpectrum2Painter (const TSpectrum2Painter &)
TSpectrum2Painter &	operator= (const TSpectrum2Painter &)

Additional Inherited Members
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

#include <TSpectrum2Painter.h>

Inheritance diagram for TSpectrum2Painter:

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
kModeGroupSimple
kModeGroupHeight
kModeGroupLight
kModeGroupLightHeight
kDisplayModePoints
kDisplayModeGrid
kDisplayModeContours
kDisplayModeBars
kDisplayModeLinesX
kDisplayModeLinesY
kDisplayModeBarsX
kDisplayModeBarsY
kDisplayModeNeedles
kDisplayModeSurface
kDisplayModeTriangles
kZScaleLinear
kZScaleLog
kZScaleSqrt
kColorAlgRgbSmooth
kColorAlgRgbModulo
kColorAlgCmySmooth
kColorAlgCmyModulo
kColorAlgCieSmooth
kColorAlgCieModulo
kColorAlgYiqSmooth
kColorAlgYiqModulo
kColorAlgHvsSmooth
kColorAlgHvsModulo
kShadowsNotPainted
kShadowsPainted
kNotShaded
kShaded
kNoBezierInterpol
kBezierInterpol
kPenStyleSolid
kPenStyleDash
kPenStyleDot
kPenStyleDashDot
kChannelMarksNotDrawn
kChannelMarksDrawn
kChannelMarksStyleDot
kChannelMarksStyleCross
kChannelMarksStyleStar
kChannelMarksStyleRectangle
kChannelMarksStyleX
kChannelMarksStyleDiamond
kChannelMarksStyleTriangle
kChannelGridNotDrawn
kChannelGridDrawn

Definition at line 68 of file TSpectrum2Painter.h.

Constructor & Destructor Documentation

TSpectrum2Painter() [1/2]

TSpectrum2Painter::TSpectrum2Painter	(	TH2 *	h2,
		Int_t	bs
	)

TSpectrum2Painter normal constructor.

Definition at line 53 of file TSpectrum2Painter.cxx.

~TSpectrum2Painter()

TSpectrum2Painter::~TSpectrum2Painter ( )

virtual

TSpectrum2Painter destructor.

Definition at line 176 of file TSpectrum2Painter.cxx.

TSpectrum2Painter() [2/2]

TSpectrum2Painter::TSpectrum2Painter ( const TSpectrum2Painter &  )

private

Member Function Documentation

BezC()

Int_t TSpectrum2Painter::BezC ( Int_t  i )

protected

This function is called from BezierBlend function.

Definition at line 751 of file TSpectrum2Painter.cxx.

BezierBlend()

Double_t TSpectrum2Painter::BezierBlend ( Int_t  i, Double_t  bezf  )

protected

This function calculates Bezier approximation.

Definition at line 764 of file TSpectrum2Painter.cxx.

BezierSmoothing()

void TSpectrum2Painter::BezierSmoothing ( Double_t  bezf )

protected

Calculates screen coordinates of the smoothed point.

Parameter bezf changes within the interval 0 to 1 in 0.1 steps.

Definition at line 779 of file TSpectrum2Painter.cxx.

ColorCalculation()

Double_t TSpectrum2Painter::ColorCalculation ( Double_t  dx1, Double_t  dy1, Double_t  z1, Double_t  dx2, Double_t  dy2, Double_t  z2, Double_t  dx3, Double_t  dy3, Double_t  z3  )

protected

Calculates and returns color value for the surface triangle given by function parameters: -dx1,dy1,z1 coordinates of the first point in 3d space -dx2,dy2,z2 coordinates of the second point in 3d space -dx3,dy3,z3 coordinates of the third point in 3d space.

Definition at line 242 of file TSpectrum2Painter.cxx.

ColorModel()

void TSpectrum2Painter::ColorModel ( unsigned  ui, unsigned  ui1, unsigned  ui2, unsigned  ui3  )

protected

This function calculates color for one palette entry given by function parameter ui.

Other parameters -ui1,ui2,ui3 represent r, g, b color components of the basic pen color.

Definition at line 474 of file TSpectrum2Painter.cxx.

CopyEnvelope()

void TSpectrum2Painter::CopyEnvelope ( Double_t  xr, Double_t  xs, Double_t  yr, Double_t  ys  )

protected

Copies envelope vector, which ensures hidden surface removal for the contours display mode.

Definition at line 1142 of file TSpectrum2Painter.cxx.

DrawMarker()

void TSpectrum2Painter::DrawMarker ( Int_t  x, Int_t  y, Int_t  w, Int_t  h, Int_t  type  )

protected

Draws channel mark at the screen coordinates x, y.

Width of the mark is w, height is h and the type of the mark is determined by the parameter type.

Definition at line 999 of file TSpectrum2Painter.cxx.

Envelope()

void TSpectrum2Painter::Envelope ( Int_t  x1, Int_t  y1, Int_t  x2, Int_t  y2  )

protected

Ensures hidden surface removal.

Definition at line 797 of file TSpectrum2Painter.cxx.

EnvelopeBars()

void TSpectrum2Painter::EnvelopeBars ( Int_t  x1, Int_t  y1, Int_t  x2, Int_t  y2  )

protected

Ensures hidden surface removal for Bars, BarsX and BarsY display modes.

Definition at line 910 of file TSpectrum2Painter.cxx.

GetAngles()

void TSpectrum2Painter::GetAngles	(	Int_t &	alpha,
		Int_t &	beta,
		Int_t &	view
	)

Gets angles of the view:

• alpha - angle between base line of Canvas and right lower edge of picture base plane
• beta - angle between base line of Canvas and left lower edge of picture base plane
• view - rotation angle of the view, it can be 0, 90, 180, 270 degrees

Definition at line 7323 of file TSpectrum2Painter.cxx.

GetBezier()

void TSpectrum2Painter::GetBezier

(

Int_t &

bezier

)

Gets Bezier smoothing switch:

• bezier - determines Bezier interpolation (applies only for simple display modes group for grid, x_lines, y_lines display modes)

Definition at line 7391 of file TSpectrum2Painter.cxx.

GetChanGrid()

void TSpectrum2Painter::GetChanGrid	(	Int_t &	enable,
		Int_t &	color
	)

This function gets attributes for drawing channel:

• enable - decides whether the channel grid is shown or not
• color - color of channel grid

Definition at line 7437 of file TSpectrum2Painter.cxx.

GetChanMarks()

void TSpectrum2Painter::GetChanMarks	(	Int_t &	enable,
		Int_t &	color,
		Int_t &	width,
		Int_t &	height,
		Int_t &	style
	)

Gets drawing attributes for channel marks:

• enable - decides whether the channel marks are shown or not
• color - color of channel marks
• width - width of channel marks in pixels
• height - height of channel marks in pixels
• style - style of channel marks (dot, cross, star, rectangle, X, diamond, triangle)

Definition at line 7425 of file TSpectrum2Painter.cxx.

GetColorAlgorithm()

void TSpectrum2Painter::GetColorAlgorithm

(

Int_t &

colorAlgorithm

)

Gets shading color algorithm:

• colorAlgorithm - rgb smooth algorithm, rgb modulo color component, cmy smooth algorithm, cmy modulo color component, cie smooth algorithm, cie modulo color component, yiq smooth algorithm, yiq modulo color component, hsv smooth algorithm, hsv modulo algorithm

Definition at line 7345 of file TSpectrum2Painter.cxx.

GetColorIncrements()

void TSpectrum2Painter::GetColorIncrements	(	Double_t &	r,
		Double_t &	g,
		Double_t &	b
	)

Gets color increments between two color levels for r, g, b components:

• r, g, b - color increments between two color levels

Definition at line 7355 of file TSpectrum2Painter.cxx.

GetContourWidth()

void TSpectrum2Painter::GetContourWidth

(

Int_t &

width

)

Gets width between horizontal slices:

• width - width between contours, applies only for contours display mode

Definition at line 7401 of file TSpectrum2Painter.cxx.

GetDisplayMode()

void TSpectrum2Painter::GetDisplayMode	(	Int_t &	modeGroup,
		Int_t &	displayMode
	)

Gets display group mode and display mode: -modeGroup - the following group modes might have been set: simple modes-kPicture2ModeGroupSimple, modes with shading according to light-kPicture2ModeGroupLight, modes with shading according to channels counts-kPicture2ModeGroupHeight, modes of combination of shading according to light and to channels counts-kPicture2ModeGroupLightHeight -displayMode - display modes that might have been set: points, grid, contours, bars, x_lines, y_lines, bars_x, bars_y, needles, surface, triangles.

Definition at line 7285 of file TSpectrum2Painter.cxx.

GetLightHeightWeight()

void TSpectrum2Painter::GetLightHeightWeight

(

Double_t &

weight

)

Gets weight between shading according to fictive light source and according to channels counts:

• weight - weight between shading according to fictive light source and according to channels counts, applies only for kPicture2ModeGroupLightHeight modes group

Definition at line 7411 of file TSpectrum2Painter.cxx.

GetLightPosition()

void TSpectrum2Painter::GetLightPosition	(	Int_t &	x,
		Int_t &	y,
		Int_t &	z
	)

Gets position of fictive light source in 3D space:

• x, y, z

Definition at line 7367 of file TSpectrum2Painter.cxx.

GetNodes()

void TSpectrum2Painter::GetNodes	(	Int_t &	nodesx,
		Int_t &	nodesy
	)

Gets nodes in both directions:

• nodesx, nodesy, only the bins at the nodes points are displayed

Definition at line 7310 of file TSpectrum2Painter.cxx.

GetPenAttr()

void TSpectrum2Painter::GetPenAttr	(	Int_t &	color,
		Int_t &	style,
		Int_t &	width
	)

Gets pen attributes: -color - color of spectrum -style - style of pen (solid, dash, dot, dash-dot) -width - width of pen in pixels.

Definition at line 7298 of file TSpectrum2Painter.cxx.

GetShading()

void TSpectrum2Painter::GetShading	(	Int_t &	shading,
		Int_t &	shadow
	)

Gets shading and shadow switches:

• shading - determines whether the picture will shaded, smoothed (no shading, shading), for rainbowed display modes only
• shadow - determines whether shadow will be drawn, for rainbowed display modes with shading according to light

Definition at line 7380 of file TSpectrum2Painter.cxx.

GetZScale()

void TSpectrum2Painter::GetZScale

(

Int_t &

scale

)

Gets z-axis scale:

• scale - it can be linear, sqrt or log

Definition at line 7335 of file TSpectrum2Painter.cxx.

operator=()

TSpectrum2Painter & TSpectrum2Painter::operator= ( const TSpectrum2Painter &  )

private

Paint()

void TSpectrum2Painter::Paint ( Option_t *  option )

virtual

Paints histogram according to preset parameters.

Visualization

Goal: to present 2-dimensional spectra in suitable visual form

This package has several display mode groups and display modes, which can be employed for the presentation of 2-dimensional histograms

Display modes groups:

• kModeGroupSimple - it covers simple display modes using one color only
• kModeGroupLight - in this group the shading is carried out according to the position of the fictive light source
• kModeGroupHeight - in this group the shading is carried out according to the channel contents
• kModeGroupLightHeight - combination of two previous shading algorithms. One can control the weight between both algorithms.

Display modes:

• kDisplayModePoints,
• kDisplayModeGrid,
• kDisplayModeContours,
• kDisplayModeBars,
• kDisplayModeLinesX,
• kDisplayModeLinesY,
• kDisplayModeBarsX,
• kDisplayModeBarsY,
• kDisplayModeNeedles,
• kDisplayModeSurface,
• kDisplayModeTriangles.

one can combine the above given modes groups and display modes. The meaningful combinations (denoted by x) are given in the next table.

	Simple	Light	Height	Light-Height
Points	X	X	X	X
Grid	X	X	X	X
Contours	X	-	X	-
Bars	X	-	X	-
LinesX	X	X	X	X
LinesY	X	X	X	X
BarsX	X	-	X	-
BarsY	X	-	X	-
Needles	X	-	-	-
Surface	-	X	X	X
Triangles	X	X	X	X

Function: void TSpectrum2Painter::SetDisplayMode (Int_t modeGroup, Int_t displayMode)

This function controls the display mode group and display mode of the histogram drawing. To illustrate the possible effects of the various display modes we introduce a set of examples. Default values:

• modeGroup = kModeGroupLightHeight
• displayMode = kDisplayModeSurface

Simple modes group, display mode = points, 256 x 256 channels.

Simple modes group, display mode = grid, 64 x 64 channels.

Simple modes group, display mode = contours, 64 x 64 channels.

Simple modes group, display mode = bars, 64 x 64 channels.

Simple modes group, display mode = linesX, 64 x 64 channels.

Simple modes group, display mode = linesY, 64 x 64 channels.

Simple modes group, display mode = barsX, 64 x 64 channels.

Simple modes group, display mode = barsY, 64 x 64 channels.

Simple modes group, display mode = needles, 64 x 64 channels.

Simple modes group, display mode = triangles, 64 x 64 channels.

Light modes group, display mode = points, 256 x 256 channels.

Light modes group, display mode = grid, 256 x 256 channels.

Light modes group, display mode = surface, 64 x 64 channels.

Light modes group, display mode = triangles, 64 x 64 channels.

Height modes group, display mode = points, 256 x 256 channels.

Height modes group, display mode = grid, 256 x 256 channels.

Height modes group, display mode = contours, 64 x 64 channels.

Height modes group, display mode = bars, 64 x 64 channels.

Height modes group, display mode = surface, 64 x 64 channels.

Height modes group, display mode = triangles, 64 x 64 channels.

Light - height modes group, display mode = surface, 64 x 64 channels. The weight between both shading algorithms is set to 0.5. One can observe the influence of both shadings.

Function: TSpectrum2Painter::SetPenAttr(Int_t color,Int_t style,Int_t width)

Using this function one can change pen color, pen style and pen width. Possible pen styles are:

• kPenStyleSolid,
• kPenStyleDash,
• kPenStyleDot,
• kPenStyleDashDot.

Default values:

• color = kBlack
• style = kPenStyleSolid
• width = 1

Simple modes group, display mode = linesX, 64 x 64 channels. Pen width = 3.

Function: TSpectrum2Painter::SetNodes(Int_t nodesx,Int_t nodesy)

Sometimes the displayed region is rather large. When displaying all channels pictures become very dense and complicated. It is very difficult to understand overall shape of the data. Therefore in the package we have implemented the possibility to change the density of displayed channels. Only channels coinciding with given nodes are displayed. In the next figure we introduce the example of the above presented spectrum with number of nodes set to 64x64.

Default values:

• nodesx = Xmax-Xmin+1
• nodesy = Ymax-Ymin+1

Simple modes group, display mode = grid, 256 x 256 channels. Number of nodes is 64x64.

Function: void TSpectrum2Painter::SetAngles (Int_t alpha,Int_t beta, Int_t view)

One can change the angles of the position of 3-d space and to rotate the space. Alpha parameter defines the angle between bottom horizontal screen line and the displayed space on the right side of the picture and beta on the left side, respectively. One can rotate the 3-d space around vertical axis going through the center of it employing the view parameter. Allowed values are 0, 90, 180 and 270 degrees respectively.

Default values:

• alpha = 20
• beta = 60
• view = 0

Light modes group, display mode = surface, 256 x 256 channels. Angles are set as follows: alpha=40, beta=30, view=0.

Light modes group, display mode = surface, 256 x 256 channels. Angles are set as follows: alpha=30, beta=30, view=90.

Function: TSpectrum2Painter::SetZScale(Int_t scale)

One can change the scale of z-axis. Possible values are:

• kZScaleLinear
• kZScaleLog
• kZScaleSqrt

Default value is:

• scale = kZScaleLinear

Height modes group, display mode = surface, 64 x 64 channels, log scale.

Function: TSpectrum2Painter::SetColorIncrements(Double_t r,Double_t g,Double_t b);

For sophisticated shading (in kModeGroupLight, kModeGroupHeight and kModeGroupLightHeight display modes groups) the color palette starts from the basic pen color (see SetPenAttr function). There is a predefined number of color levels (256). Color in every level is calculated by adding the increments of the r, g, b components to the previous level. Using this function one can change the color increments between two neighbouring color levels. The function does not apply for kModeGroupSimple display modes group. Default values: r=1, g=1, b=1;

Light modes group, display mode = surface, 64 x 64 channels, color increments r=1, g=2, b=3.

Light modes group, display mode = surface, 64 x 64 channels, color increments r=4, g=2, b=1.

Function: TSpectrum2Painter::SetColorAlgorithm(Int_t colorAlgorithm)

To define the colors one can employ one of the following color algorithms (rgb, cmy, cie, yiq, hvs models [1], [2]). When the level of a component achieves the limit value one can choose either smooth transition (by decreasing the limit value) or sharp - modulo transition (continuing with 0 value). This makes possible to realize various visual effects. One can choose from the following set of the algorithms:

• kColorAlgRgbSmooth
• kColorAlgRgbModulo
• kColorAlgCmySmooth
• kColorAlgCmyModulo
• kColorAlgCieSmooth
• kColorAlgCieModulo
• kColorAlgYiqSmooth
• kColorAlgYiqModulo
• kColorAlgHvsSmooth
• kColorAlgHvsModulo

The function does not apply for kModeGroupSimple display modes group. Default value is:

• colorAlgorithm = kColorAlgRgbSmooth

Light modes group, display mode = surface, 64 x 64 channels, color algorithm is cmy smooth.

Light modes group, display mode = surface, 64 x 64 channels, color algorithm is hvs smooth.

Light modes group, display mode = surface, 64 x 64 channels, color algorithm is yiq smooth.

Light modes group, display mode = surface, 64 x 64 channels, color algorithm is rgb modulo.

Height modes group, display mode = surface, 256 x 256 channels, color algorithm is rgb modulo, increments r=5, g=5, b=5, angles alpha=0, beta=90, view=0.

Function: TSpectrum2Painter::SetLightPosition(Int_t x, Int_t y, Int_t z)

In kModeGroupLight and kModeGroupLightHeight display modes groups the color palette is calculated according to the fictive light source position in 3-d space. Using this function one can change the position of the source and thus to achieve various graphical effects. The function does not apply for kModeGroupSimple and kModeGroupHeight display modes groups. Default values are: x=1000, y=1000, z=1000.

Light modes group, display mode = surface, 64 x 64 channels. Position of the light source was set to x=0, y=1000, z=1000.

Function: TSpectrum2Painter::SetShading(Int_t shading,Int_t shadow)

Surface of the picture is composed of triangles. If desired the edges of the neighbouring triangles can be smoothed (shaded). If desired the display of the shadow can be painted as well. The function does not apply for kModeGroupSimple display modes group.

Possible values for shading are:

• kNotShaded
• kShaded.

Possible values for shadow are:

• kShadowsNotPainted
• kShadowsPainted

Default values:

• shading = kShaded
• shadow = kShadowsNotPainted

Light modes group, display mode = surface, 64 x 64 channels, not shaded.

Light modes group, display mode = surface, 64 x 64 channels, shaded, with shadow.

Function: TSpectrum2Painter::SetBezier(Int_t bezier)

For kModeGroupSimple display modes group and for kDisplayModeGrid, kDisplayModeLinesX >and kDisplayModeLinesY display modes one can smooth data using Bezier smoothing algorithm. The function does not apply for other display modes groups and display modes. Possible values are:

• kNoBezierInterpol
• kBezierInterpol

Default value is:

• bezier = kNoBezierInterpol.

Simple modes group, display mode = linesX, 64 x 64 channels with Bezier smoothing.

Function: TSpectrum2Painter::SetContourWidth(Int_t width)

This function applies only for kDisplayModeContours display mode. One can change the width between horizontal slices and thus their density. Default value: width=50.

Simple modes group, display mode = contours, 64 x 64 channels. Width between slices was set to 30.

Function: TSpectrum2Painter::SetLightHeightWeight(Double_t weight)

For kModeGroupLightHeight display modes group one can change the weight between both shading algorithm. The function does not apply for other display modes groups. Default value is: weight=0.5.

Light - height modes group, display mode = surface, 64 x 64 channels. The weight between both shading algorithms is set to 0.7.

Function: TSpectrum2Painter::SetChanMarks(Int_t enable,Int_t color,Int_t width,Int_t height,Int_t style)

In addition to the surface drawn using any above given algorithm one can display channel marks. One can control the color as well as the width, height (in pixels) and the style of the marks. The parameter enable can be set to:

• kChannelMarksNotDrawn
• kChannelMarksDrawn.

The possible styles can be chosen from the set:

• kChannelMarksStyleDot
• kChannelMarksStyleCross
• kChannelMarksStyleStar
• kChannelMarksStyleRectangle
• kChannelMarksStyleX
• kChannelMarksStyleDiamond
• kChannelMarksStyleTriangle.

Light modes group, display mode = surface, 64 x 64 channels, with marks (red circles).

Function: TSpectrum2Painter::SetChanGrid(Int_t enable,Int_t color)

In addition to the surface drawn using any above given algorithm one can display grid using the color parameter. The parameter enable can be set to:

• kChannelGridNotDrawn
• kChannelGridDrawn.

Height modes group, display mode = surface, 64 x 64 channels, with blue grid.

Height modes group, display mode = surface, 64 x 64 channels, with marks (red circles) and blue grid.

References:

[1] Morhac M., Kliman J., Matouoek V., Turzo I., Sophisticated visualization algorithms for analysis of multidimensional experimental nuclear data, Acta Physica Slovaca 54 (2004) 385.

[2] D. Hearn, M. P. Baker: Computer Graphics, Prentice Hall International, Inc. 1994.

Script:

Example to draw source spectrum (class TSpectrum2Painter). To execute this example, do:

root > .x VisA.C

#include "TSpectrum2Painter.h"
 
void VisA() {
   TFile *f = new TFile("TSpectrum2.root");
   TH2F *graph=(TH2F*) f->Get("graph2;1");
   TCanvas *Graph2 = new TCanvas("Graph2","Illustration of 2D graphics",10,10,1000,700);
   graph->Draw("SPEC");
}

Reimplemented from TObject.

Definition at line 1581 of file TSpectrum2Painter.cxx.

PaintSpectrum()

void TSpectrum2Painter::PaintSpectrum ( TH2 *  h2, Option_t *  option = "", Int_t  bs = 1600  )

static

This function allows to set all the possible options available in TSpectrum2Painter and paint "h2".

TSpectrum2Painter offers a large set of options/attributes. In the "option" parameter each of them can be set to specific values via "operators" in the option itself. for instance on can do:

h2->Draw("SPEC a(30,30,0)");

to draw h2 with TSpectrum2Painter using all the default attributes except the viewing angles. The operators' names are case insensitive (one can use "a" or "A"). Operators parameters are separated by ",". The operators can be put is any order in the option. Operators must be separated by " ". No " " characters should be put in an operator. This help page describes all the available operators.

The way "h2" will be painted is controlled with 2 parameters the "Display modes groups" and the "Display Modes".

"Display modes groups" can take the following values:

• 0 = Simple - it covers simple display modes using one color only
• 1 = Light - in this group the shading is carried out according to the position of the fictive light source
• 2 = Height - in this group the shading is carried out according to the channel contents
• 3 = LightHeight - combination of two previous shading algorithms. One can control the weight between both algorithms.

"Display modes" can take the following values:

• 1 = Points.
• 2 = Grid.
• 3 = Contours.
• 4 = Bars.
• 5 = LinesX.
• 6 = LinesY.
• 7 = BarsX.
• 8 = BarsY.
• 9 = Needles.
• 10 = Surface.
• 11 = Triangles.

Using this function these parameters can be set using the "dm" operator in the option. Example:

h2->Draw("SPEC dm(1,2)");

will paint the 2D histogram h2 using the "Light Display mode group" and the "Grid Display mode". The following table summarises all the possible combinations of the "Display modes groups" and the "Display modes".

	Simple	Light	Height	Light-Height
Points	X	X	X	X
Grid	X	X	X	X
Contours	X	-	X	-
Bars	X	-	X	-
LinesX	X	X	X	X
LinesY	X	X	X	X
BarsX	X	-	X	-
BarsY	X	-	X	-
Needles	X	-	-	-
Surface	-	X	X	X
Triangles	X	X	X	X

The Pen Attributes can be changed using pa(color, style, width). Example:

h2->Draw("SPEC dm(1,2) pa(2,1,2)");

sets the line color to 2, line type to 1 and line width to2. Note that if pa() is not specified, the histogram "h2" line attributes are used. Note also that operators for SPEC option can be cumulated and specified in any order.

The buffer size can be change with bf(size). Example:

h2->Draw("SPEC bf(8000)");

The spectrum painter needs a buffer to paint the spectrum. By default the buffer size is set to 1600. In most cases this buffer size is enough. But if the canvas size is very big, for instance 8000x5000 this buffer size is too small. An error message is issued telling to use the option bf().

The number of nodes can be change with n(nodesx, nodesy). Example:

h2->Draw("SPEC n(40,40)");

Sometimes the displayed region is rather large. When displaying all channels pictures become very dense and complicated. It is very difficult to understand the overall shape of data. "n(nx,ny)" allows to change the density of displayed channels. Only the channels coinciding with given nodes are displayed.

The visualization angles can be changed with a(alpha, beta, view). Example:

h2->Draw("SPEC n(40,40) dm(0,1) a(30,30,0)");

Alpha defines the angle between bottom horizontal screen line and the displayed space on the right side of the picture and beta on the left side, respectively. One can rotate the 3-d space around vertical axis going through the center of it employing the view parameter. Allowed values are 0, 90, 180 and 270 degrees.

zs(scale) changes the scale of the Z-axis Possible values are:

• 0 = Linear (default)
• 1 = Log
• 2 = Sqrt

If gPad->SetLogz() has been set, log scale on Z-axis is set automatically. No need to use the zs() operator. Note that the X and Y axis are always linear.

ci(r,g,b), were r,g and b are floats defines the colors increments. For sophisticated shading (Light, Height and LightHeight Display Modes Groups) the color palette starts from the basic pen color (see pa() function). There is a predefined number of color levels (256). Color in every level is calculated by adding the increments of the r, g, b components to the previous level. Using this function one can change the color increments between two neighbouring color levels. The function does not apply dor the Simple Display Modes Group. The default values are: (1,1,1).

ca(color_algorithm) allows to choose the Color Algorithm. To define the colors one can employ one of the following color algorithms (RGB, CMY, CIE, YIQ, HVS models). When the level of a component reaches the limit value one can choose either smooth transition (by decreasing the limit value) or a sharp modulo transition (continuing with 0 value). This makes possible to realize various visual effects. One can choose from the following set of the algorithms:

• 0 = RGB Smooth
• 1 = RGB Modulo
• 2 = CMY Smooth
• 3 = CMY Modulo
• 4 = CIE Smooth
• 5 = CIE Modulo
• 6 = YIQ Smooth
• 7 = YIQ Modulo
• 8 = HVS Smooth
• 9 = HVS Modulo

This function does not apply on Simple display modes group. Default value is 0. Example:

h2->Draw("SPEC c1(4) dm(0,1) a(30,30,0)");

choose CMY Modulo to paint the "h2" histogram.

lp(x,y,z) set the light position. In Light and LightHeight display modes groups the color palette is calculated according to the fictive light source position in 3-d space. Using this function one can change the position of the source and thus to achieve various graphical effects. This function does not apply for Simple and Height display modes groups. Default is: lp(1000,1000,100).

s(shading,shadow) allows to set the shading. The picture's surface is composed of triangles. If desired the edges of the neighbouring triangles can be smoothed (shaded). If desired the display of the shadow can be painted as well. The function does not apply for Simple display modes group. The possible values for shading are:

• 0 = Not Shaded
• 1 = Shaded

The possible values for shadow are:

• 0 = Shadows are not painted
• 1 = Shadows are painted

Default values: s(1,0)

b(bezier) set the Bezier smoothing. For Simple display modes group and for Grid, LinesX and LinesY display modes one can smooth data using Bezier smoothing algorithm. The function does not apply for other display modes groups and display modes. Possible values are:

• 0 = No bezier smoothing
• 1 = Bezier smoothing

Default value is: b(0)

cw(width) set the contour width. This function applies only for the Contours display mode. One can change the width between horizontal slices and thus their density. Default value: cw(50)

lhw(weight) set the light height weight. For LightHeight display modes group one can change the weight between both shading algorithms. The function does not apply for other display modes groups. Default value is lhw(0.5).

cm(enable,color,width,height,style) allows to draw a marker on each node. In addition to the surface drawn using any above given algorithm one can display channel marks. One can control the color as well as the width, height (in pixels) and the style of the marks. The parameter enable can be set to

• 0 = Channel marks are not drawn
• 1 = Channel marks drawn

The possible styles can be chosen from the set:

• 1 = Dot
• 2 = Cross
• 3 = Star
• 4 = Rectangle
• 5 = X
• 6 = Diamond
• 7 = Triangle.

cg(enable,color) channel grid. In addition to the surface drawn using any above given algorithm one can display grid using the color parameter. The parameter enable can be set to:

• 0 = Grid not drawn
• 1 = Grid drawn

See example spectrumpainter.C

Definition at line 7672 of file TSpectrum2Painter.cxx.

SetAngles()

void TSpectrum2Painter::SetAngles	(	Int_t	alpha,
		Int_t	beta,
		Int_t	view
	)

Sets angles of the view:

• alpha - angles of display,alpha+beta must be less or equal to 90, alpha- angle between base line of Canvas and right lower edge of picture base plane
• beta - angle between base line of Canvas and left lower edge of picture base plane
• view - rotation angle of the view, it can be 0, 90, 180, 270 degrees

Definition at line 7115 of file TSpectrum2Painter.cxx.

SetBezier()

void TSpectrum2Painter::SetBezier

(

Int_t

bezier

)

Sets on/off Bezier smoothing:

• bezier - determines Bezier interpolation (applies only for simple display modes group for grid, x_lines, y_lines display modes)

Definition at line 7203 of file TSpectrum2Painter.cxx.

SetChanGrid()

void TSpectrum2Painter::SetChanGrid	(	Int_t	enable,
		Int_t	color
	)

This function sets enables/disables drawing of channel grid and sets its color: -enable - decides whether the channel grid is shown or not -color - color of channel grid.

Definition at line 7269 of file TSpectrum2Painter.cxx.

SetChanMarks()

void TSpectrum2Painter::SetChanMarks	(	Int_t	enable,
		Int_t	color,
		Int_t	width,
		Int_t	height,
		Int_t	style
	)

Sets enables/disables drawing of channel marks and sets their attributes:

• enable - decides whether the channel marks are shown or not
• color - color of channel marks
• width - width of channel marks in pixels
• height - height of channel marks in pixels
• style - style of channel marks (dot, cross, star, rectangle, X, diamond, triangle)

Definition at line 7242 of file TSpectrum2Painter.cxx.

SetColorAlgorithm()

void TSpectrum2Painter::SetColorAlgorithm

(

Int_t

colorAlgorithm

)

Sets shading color algorithm:

• olorAlgorithm - applies only for rainbowed display modes (rgb smooth algorithm, rgb modulo color component, cmy smooth algorithm,
• cmy modulo color component, cie smooth algorithm,
• cie modulo color component, yiq smooth algorithm,
• yiq modulo color component, hsv smooth algorithm,
• hsv modulo color component, it does not apply for simple display modes algorithm group

Definition at line 7148 of file TSpectrum2Painter.cxx.

SetColorIncrements()

void TSpectrum2Painter::SetColorIncrements	(	Double_t	r,
		Double_t	g,
		Double_t	b
	)

Sets color increments between two color levels for r, g, b components:

• r, g, b - color increments between two color levels

Definition at line 7160 of file TSpectrum2Painter.cxx.

SetContourWidth()

void TSpectrum2Painter::SetContourWidth

(

Int_t

width

)

Sets width between horizontal slices:

• width - width between contours, applies only for contours display mode

Definition at line 7216 of file TSpectrum2Painter.cxx.

SetDisplayMode()

void TSpectrum2Painter::SetDisplayMode	(	Int_t	modeGroup,
		Int_t	displayMode
	)

Sets display group mode and display mode:

• modeGroup - the following group modes can be set: simple modes-kPicture2ModeGroupSimple, modes with shading according to light-kPicture2ModeGroupLight, modes with shading according to channels counts-kPicture2ModeGroupHeight, modes of combination of shading according to light and to channels counts-kPicture2ModeGroupLightHeight
• displayMode - posible display modes are: points, grid, contours, bars, x_lines, y_lines, bars_x, bars_y, needles, surface, triangles

Definition at line 7069 of file TSpectrum2Painter.cxx.

SetLightHeightWeight()

void TSpectrum2Painter::SetLightHeightWeight

(

Double_t

weight

)

Sets weight between shading according to fictive light source and according to channels counts:

• weight - weight between shading according to fictive light source and according to channels counts, applies only for kPicture2ModeGroupLightHeight modes group

Definition at line 7226 of file TSpectrum2Painter.cxx.

SetLightPosition()

void TSpectrum2Painter::SetLightPosition	(	Int_t	x,
		Int_t	y,
		Int_t	z
	)

Sets position of fictive light source in 3D space:

• x, y, z

Definition at line 7174 of file TSpectrum2Painter.cxx.

SetNodes()

void TSpectrum2Painter::SetNodes	(	Int_t	nodesx,
		Int_t	nodesy
	)

Sets nodes in both directions:

• nodesx, nodesy, only the bins at the nodes points are displayed

Definition at line 7100 of file TSpectrum2Painter.cxx.

SetPenAttr()

void TSpectrum2Painter::SetPenAttr	(	Int_t	color,
		Int_t	style,
		Int_t	width
	)

Sets pen attributes:

• color - color of spectrum
• style - style of pen (solid, dash, dot, dash-dot)
• width - width of pen in pixels

Definition at line 7086 of file TSpectrum2Painter.cxx.

SetShading()

void TSpectrum2Painter::SetShading	(	Int_t	shading,
		Int_t	shadow
	)

Sets on/off shading and shadow switches:

• shading - determines whether the picture will shaded, smoothed (no shading, shading), for rainbowed display modes only
• shadow - determines whether shadow will be drawn, for rainbowed display modes with shading according to light

Definition at line 7189 of file TSpectrum2Painter.cxx.

SetZScale()

void TSpectrum2Painter::SetZScale

(

Int_t

scale

)

Sets z-axis scale:

• scale - linear, sqrt or log

Definition at line 7130 of file TSpectrum2Painter.cxx.

ShadowColorCalculation()

Double_t TSpectrum2Painter::ShadowColorCalculation ( Double_t  xtaz, Double_t  ytaz, Double_t  ztaz, Double_t  shad_noise  )

protected

Determines whether the center of the triangle in 3-d space given by function parameters:

• xtaz,ytaz,ztaz is in shadow or not. If yes it return 1 otherwise it returns 0.

Definition at line 385 of file TSpectrum2Painter.cxx.

Slice()

void TSpectrum2Painter::Slice ( Double_t  xr, Double_t  yr, Double_t  xs, Double_t  ys, TLine *  line  )

protected

Calculates screen coordinates of the line given by two nodes for contours display mode.

The line is given by two points xr, yr, xs, ys. Finally it draws the line.

Definition at line 1082 of file TSpectrum2Painter.cxx.

Transform()

void TSpectrum2Painter::Transform ( Int_t  it, Int_t  jt, Int_t  zmt  )

protected

Reads out the value from histogram and calculates screen coordinates.

Parameters:

• it - node in x- direction
• jt - node in y- direction
• zmt - control variable

Definition at line 196 of file TSpectrum2Painter.cxx.

Member Data Documentation

fAlpha

Int_t TSpectrum2Painter::fAlpha

protected

Definition at line 141 of file TSpectrum2Painter.h.

fBeta

Int_t TSpectrum2Painter::fBeta

protected

Definition at line 142 of file TSpectrum2Painter.h.

fBezier

Int_t TSpectrum2Painter::fBezier

protected

Definition at line 155 of file TSpectrum2Painter.h.

fBx1

Int_t TSpectrum2Painter::fBx1

protected

Definition at line 128 of file TSpectrum2Painter.h.

fBx2

Int_t TSpectrum2Painter::fBx2

protected

Definition at line 129 of file TSpectrum2Painter.h.

fBy1

Int_t TSpectrum2Painter::fBy1

protected

Definition at line 130 of file TSpectrum2Painter.h.

fBy2

Int_t TSpectrum2Painter::fBy2

protected

Definition at line 131 of file TSpectrum2Painter.h.

fBzX

Int_t TSpectrum2Painter::fBzX[4]

protected

Definition at line 188 of file TSpectrum2Painter.h.

fBzY

Int_t TSpectrum2Painter::fBzY[4]

protected

Definition at line 189 of file TSpectrum2Painter.h.

fChanlineColor

Int_t TSpectrum2Painter::fChanlineColor

protected

Definition at line 162 of file TSpectrum2Painter.h.

fChanlineEnDis

Int_t TSpectrum2Painter::fChanlineEnDis

protected

Definition at line 161 of file TSpectrum2Painter.h.

fChanmarkColor

Int_t TSpectrum2Painter::fChanmarkColor

protected

Definition at line 160 of file TSpectrum2Painter.h.

fChanmarkEnDis

Int_t TSpectrum2Painter::fChanmarkEnDis

protected

Definition at line 156 of file TSpectrum2Painter.h.

fChanmarkHeight

Int_t TSpectrum2Painter::fChanmarkHeight

protected

Definition at line 159 of file TSpectrum2Painter.h.

fChanmarkStyle

Int_t TSpectrum2Painter::fChanmarkStyle

protected

Definition at line 157 of file TSpectrum2Painter.h.

fChanmarkWidth

Int_t TSpectrum2Painter::fChanmarkWidth

protected

Definition at line 158 of file TSpectrum2Painter.h.

fColorAlg

Int_t TSpectrum2Painter::fColorAlg

protected

Definition at line 148 of file TSpectrum2Painter.h.

fContWidth

Int_t TSpectrum2Painter::fContWidth

protected

Definition at line 140 of file TSpectrum2Painter.h.

fDisplayMode

Int_t TSpectrum2Painter::fDisplayMode

protected

Definition at line 136 of file TSpectrum2Painter.h.

fDxspline

Double_t TSpectrum2Painter::fDxspline

protected

Definition at line 181 of file TSpectrum2Painter.h.

fDyspline

Double_t TSpectrum2Painter::fDyspline

protected

Definition at line 181 of file TSpectrum2Painter.h.

fEnvelope

Short_t* TSpectrum2Painter::fEnvelope

protected

Definition at line 183 of file TSpectrum2Painter.h.

fEnvelopeContour

Short_t* TSpectrum2Painter::fEnvelopeContour

protected

Definition at line 184 of file TSpectrum2Painter.h.

fGbezx

Double_t TSpectrum2Painter::fGbezx

protected

Definition at line 181 of file TSpectrum2Painter.h.

fGbezy

Double_t TSpectrum2Painter::fGbezy

protected

Definition at line 181 of file TSpectrum2Painter.h.

fH2

TH2* TSpectrum2Painter::fH2

protected

Definition at line 121 of file TSpectrum2Painter.h.

fKx

Double_t TSpectrum2Painter::fKx

protected

Definition at line 165 of file TSpectrum2Painter.h.

fKy

Double_t TSpectrum2Painter::fKy

protected

Definition at line 166 of file TSpectrum2Painter.h.

fLevels

Int_t TSpectrum2Painter::fLevels

protected

Definition at line 144 of file TSpectrum2Painter.h.

fLHweight

Double_t TSpectrum2Painter::fLHweight

protected

Definition at line 149 of file TSpectrum2Painter.h.

fLine

Int_t TSpectrum2Painter::fLine

protected

Definition at line 182 of file TSpectrum2Painter.h.

fMaximumXScreenResolution

Int_t TSpectrum2Painter::fMaximumXScreenResolution

protected

Definition at line 186 of file TSpectrum2Painter.h.

fModeGroup

Int_t TSpectrum2Painter::fModeGroup

protected

Definition at line 135 of file TSpectrum2Painter.h.

fMxx

Double_t TSpectrum2Painter::fMxx

protected

Definition at line 167 of file TSpectrum2Painter.h.

fMxy

Double_t TSpectrum2Painter::fMxy

protected

Definition at line 168 of file TSpectrum2Painter.h.

fMyx

Double_t TSpectrum2Painter::fMyx

protected

Definition at line 169 of file TSpectrum2Painter.h.

fMyy

Double_t TSpectrum2Painter::fMyy

protected

Definition at line 170 of file TSpectrum2Painter.h.

fNewColor

TColor* TSpectrum2Painter::fNewColor

protected

Definition at line 185 of file TSpectrum2Painter.h.

fNewColorIndex

Int_t TSpectrum2Painter::fNewColorIndex

protected

buffers' size

Definition at line 187 of file TSpectrum2Painter.h.

fNodesx

Int_t TSpectrum2Painter::fNodesx

protected

Definition at line 138 of file TSpectrum2Painter.h.

fNodesy

Int_t TSpectrum2Painter::fNodesy

protected

Definition at line 139 of file TSpectrum2Painter.h.

fNuSli

Double_t TSpectrum2Painter::fNuSli

protected

Definition at line 178 of file TSpectrum2Painter.h.

fPenColor

Int_t TSpectrum2Painter::fPenColor

protected

Definition at line 132 of file TSpectrum2Painter.h.

fPenDash

Int_t TSpectrum2Painter::fPenDash

protected

Definition at line 133 of file TSpectrum2Painter.h.

fPenWidth

Int_t TSpectrum2Painter::fPenWidth

protected

Definition at line 134 of file TSpectrum2Painter.h.

fRainbow1Step

Double_t TSpectrum2Painter::fRainbow1Step

protected

Definition at line 145 of file TSpectrum2Painter.h.

fRainbow2Step

Double_t TSpectrum2Painter::fRainbow2Step

protected

Definition at line 146 of file TSpectrum2Painter.h.

fRainbow3Step

Double_t TSpectrum2Painter::fRainbow3Step

protected

Definition at line 147 of file TSpectrum2Painter.h.

fShading

Int_t TSpectrum2Painter::fShading

protected

Definition at line 154 of file TSpectrum2Painter.h.

fShadow

Int_t TSpectrum2Painter::fShadow

protected

Definition at line 153 of file TSpectrum2Painter.h.

fTxx

Double_t TSpectrum2Painter::fTxx

protected

Definition at line 171 of file TSpectrum2Painter.h.

fTxy

Double_t TSpectrum2Painter::fTxy

protected

Definition at line 172 of file TSpectrum2Painter.h.

fTyx

Double_t TSpectrum2Painter::fTyx

protected

Definition at line 173 of file TSpectrum2Painter.h.

fTyy

Double_t TSpectrum2Painter::fTyy

protected

Definition at line 174 of file TSpectrum2Painter.h.

fTyz

Double_t TSpectrum2Painter::fTyz

protected

Definition at line 175 of file TSpectrum2Painter.h.

fViewAngle

Int_t TSpectrum2Painter::fViewAngle

protected

Definition at line 143 of file TSpectrum2Painter.h.

fVx

Double_t TSpectrum2Painter::fVx

protected

Definition at line 176 of file TSpectrum2Painter.h.

fVy

Double_t TSpectrum2Painter::fVy

protected

Definition at line 177 of file TSpectrum2Painter.h.

fXe

Int_t TSpectrum2Painter::fXe

protected

Definition at line 182 of file TSpectrum2Painter.h.

fXlight

Int_t TSpectrum2Painter::fXlight

protected

Definition at line 150 of file TSpectrum2Painter.h.

fXmax

Int_t TSpectrum2Painter::fXmax

protected

Definition at line 123 of file TSpectrum2Painter.h.

fXmin

Int_t TSpectrum2Painter::fXmin

protected

Definition at line 122 of file TSpectrum2Painter.h.

fXs

Int_t TSpectrum2Painter::fXs

protected

Definition at line 182 of file TSpectrum2Painter.h.

fXt

Int_t TSpectrum2Painter::fXt

protected

Definition at line 182 of file TSpectrum2Painter.h.

fYe

Int_t TSpectrum2Painter::fYe

protected

Definition at line 182 of file TSpectrum2Painter.h.

fYlight

Int_t TSpectrum2Painter::fYlight

protected

Definition at line 151 of file TSpectrum2Painter.h.

fYmax

Int_t TSpectrum2Painter::fYmax

protected

Definition at line 125 of file TSpectrum2Painter.h.

fYmin

Int_t TSpectrum2Painter::fYmin

protected

Definition at line 124 of file TSpectrum2Painter.h.

fYs

Int_t TSpectrum2Painter::fYs

protected

Definition at line 182 of file TSpectrum2Painter.h.

fYt

Int_t TSpectrum2Painter::fYt

protected

Definition at line 182 of file TSpectrum2Painter.h.

fZ

Double_t TSpectrum2Painter::fZ

protected

Definition at line 181 of file TSpectrum2Painter.h.

fZeq

Double_t TSpectrum2Painter::fZeq

protected

Definition at line 181 of file TSpectrum2Painter.h.

fZlight

Int_t TSpectrum2Painter::fZlight

protected

Definition at line 152 of file TSpectrum2Painter.h.

fZmax

Double_t TSpectrum2Painter::fZmax

protected

Definition at line 127 of file TSpectrum2Painter.h.

fZmin

Double_t TSpectrum2Painter::fZmin

protected

Definition at line 126 of file TSpectrum2Painter.h.

fZPresetValue

Double_t TSpectrum2Painter::fZPresetValue

protected

Definition at line 181 of file TSpectrum2Painter.h.

fZscale

Int_t TSpectrum2Painter::fZscale

protected

Definition at line 137 of file TSpectrum2Painter.h.

Libraries for TSpectrum2Painter:

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

• hist/spectrumpainter/inc/TSpectrum2Painter.h
• hist/spectrumpainter/src/TSpectrum2Painter.cxx