REveProjection Base for specific classes that implement non-linear projections.

Definition at line 29 of file REveProjections.hxx.

Classes
struct	PreScaleEntry_t

Public Types
enum	EGeoMode_e { kGM_Unknown , kGM_Polygons , kGM_Segments }

enum	EPProc_e { kPP_Plane , kPP_Distort , kPP_Full }

enum	EPType_e { kPT_Unknown , kPT_RPhi , kPT_RhoZ , kPT_3D , kPT_End }

typedef std::vector< PreScaleEntry_t >	vPreScale_t

Public Member Functions
	REveProjection ()
	Constructor. More...

virtual	~REveProjection ()

virtual Bool_t	AcceptSegment (REveVector &, REveVector &, Float_t) const

void	AddPreScaleEntry (Int_t coord, Float_t max_val, Float_t scale)
	Add new scaling range for given coordinate. More...

virtual void	BisectBreakPoint (REveVector &vL, REveVector &vR, Bool_t project_result=kFALSE, Float_t depth=0)
	Find break-point on both sides of the discontinuity. More...

virtual void	BisectBreakPoint (REveVector &vL, REveVector &vR, Float_t eps_sqr)
	Find break-point on both sides of the discontinuity. More...

void	ChangePreScaleEntry (Int_t coord, Int_t entry, Float_t new_scale)
	Change scale for given entry and coordinate. More...

void	ClearPreScales ()
	Clear all pre-scaling information. More...

Bool_t	GetDisplaceOrigin () const

Float_t	GetDistortion () const

Float_t	GetFixR () const

Float_t	GetFixZ () const

EGeoMode_e	GetGeoMode () const

Float_t	GetLimit (Int_t i, Bool_t pos)

Float_t	GetMaxTrackStep () const

const char *	GetName () const

REveVector	GetOrthogonalCenter (int idx, REveVector &out)
	Get center ortogonal to given axis index. More...

Float_t	GetPastFixRFac () const

Float_t	GetPastFixZFac () const

virtual Float_t *	GetProjectedCenter ()
	Get projected center. More...

virtual Float_t	GetScreenVal (Int_t ax, Float_t value)
	Project point on given axis and return projected value. More...

Float_t	GetScreenVal (Int_t i, Float_t x, REveVector &dirVec, REveVector &oCenter)
	Project point on given axis and return projected value. More...

EPType_e	GetType () const

Bool_t	GetUsePreScale () const

virtual Float_t	GetValForScreenPos (Int_t ax, Float_t value)
	Inverse projection. More...

virtual Bool_t	HasSeveralSubSpaces () const

virtual Bool_t	Is2D () const =0

virtual Bool_t	Is3D () const =0

virtual Bool_t	IsOnSubSpaceBoundrary (const REveVector &) const

void	PreScalePoint (Float_t &x, Float_t &y)
	Pre-scale point (x, y) in projected coordinates for 2D projections: More...

void	PreScalePoint (Float_t &x, Float_t &y, Float_t &z)
	Pre-scale point (x, y, z) in projected coordinates for 3D projection. More...

virtual void	ProjectPoint (Float_t &x, Float_t &y, Float_t &z, Float_t d, EPProc_e p=kPP_Full)=0

void	ProjectPointdv (const REveTrans t, const Double_t p, Double_t *v, Float_t d)
	Project double array, converting it to global coordinate system first if transformation matrix is set. More...

void	ProjectPointdv (Double_t *v, Float_t d)
	Project double array. More...

void	ProjectPointfv (const REveTrans t, const Float_t p, Float_t *v, Float_t d)
	Project float array, converting it to global coordinate system first if transformation matrix is set. More...

void	ProjectPointfv (Float_t *v, Float_t d)
	Project float array. More...

void	ProjectVector (const REveTrans *t, REveVector &v, Float_t d)
	Project REveVector, converting it to global coordinate system first if transformation matrix is set. More...

void	ProjectVector (REveVector &v, Float_t d)
	Project REveVector. More...

const REveVector &	RefCenter () const

virtual void	SetCenter (REveVector &v)

virtual void	SetDirectionalVector (Int_t screenAxis, REveVector &vec)
	Get vector for axis in a projected space. More...

void	SetDisplaceOrigin (bool)
	Set flag to displace for center. More...

void	SetDistortion (Float_t d)
	Set distortion. More...

void	SetFixR (Float_t x)
	Set fixed radius. More...

void	SetFixZ (Float_t x)
	Set fixed radius. More...

void	SetGeoMode (EGeoMode_e m)

void	SetMaxTrackStep (Float_t x)

void	SetName (const char *txt)

void	SetPastFixRFac (Float_t x)
	Set 2's-exponent for relative scaling beyond FixR. More...

void	SetPastFixZFac (Float_t x)
	Set 2's-exponent for relative scaling beyond FixZ. More...

void	SetType (EPType_e t)

void	SetUsePreScale (Bool_t x)

virtual Int_t	SubSpaceId (const REveVector &) const

Static Public Attributes
static Float_t	fgEps = 0.005f

static Float_t	fgEpsSqr = 0.000025f

Protected Member Functions
void	PreScaleVariable (Int_t dim, Float_t &v)
	Pre-scale single variable with pre-scale entry dim. More...

Protected Attributes
REveVector	fCenter

bool	fDisplaceOrigin

Float_t	fDistortion

Float_t	fFixR

Float_t	fFixZ

EGeoMode_e	fGeoMode

Float_t	fMaxTrackStep

std::string	fName

Float_t	fPastFixRFac

Float_t	fPastFixRScale

Float_t	fPastFixZFac

Float_t	fPastFixZScale

vPreScale_t	fPreScales [3]

Float_t	fScaleR

Float_t	fScaleZ

EPType_e	fType

Bool_t	fUsePreScale

#include <ROOT/REveProjections.hxx>

Inheritance diagram for ROOT::Experimental::REveProjection:

[legend]

Member Typedef Documentation

◆ vPreScale_t

typedef std::vector<PreScaleEntry_t> ROOT::Experimental::REveProjection::vPreScale_t

Definition at line 48 of file REveProjections.hxx.

Member Enumeration Documentation

◆ EGeoMode_e

enum ROOT::Experimental::REveProjection::EGeoMode_e

Enumerator
kGM_Unknown
kGM_Polygons
kGM_Segments

Definition at line 33 of file REveProjections.hxx.

◆ EPProc_e

enum ROOT::Experimental::REveProjection::EPProc_e

Enumerator
kPP_Plane
kPP_Distort
kPP_Full

Definition at line 32 of file REveProjections.hxx.

◆ EPType_e

enum ROOT::Experimental::REveProjection::EPType_e

Enumerator
kPT_Unknown
kPT_RPhi
kPT_RhoZ
kPT_3D
kPT_End

Definition at line 31 of file REveProjections.hxx.

Constructor & Destructor Documentation

◆ REveProjection()

REveProjection::REveProjection ( )

Constructor.

Definition at line 37 of file REveProjections.cxx.

◆ ~REveProjection()

virtual ROOT::Experimental::REveProjection::~REveProjection ( )

inlinevirtual

Definition at line 77 of file REveProjections.hxx.

Member Function Documentation

◆ AcceptSegment()

virtual Bool_t ROOT::Experimental::REveProjection::AcceptSegment	(	REveVector &	,
		REveVector &	,
		Float_t
	)		const

inlinevirtual

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 131 of file REveProjections.hxx.

◆ AddPreScaleEntry()

void REveProjection::AddPreScaleEntry	(	Int_t	coord,
		Float_t	value,
		Float_t	scale
	)

Add new scaling range for given coordinate.

Arguments:

coord 0 ~ x, 1 ~ y, 2 ~ z
value value of input coordinate from which to apply this scale;
scale the scale to apply from value onwards.

NOTE: If pre-scaling is combined with center-displaced then the scale of the central region should be 1. This limitation can be removed but will cost CPU.

Definition at line 181 of file REveProjections.cxx.

◆ BisectBreakPoint() [1/2]

void REveProjection::BisectBreakPoint	(	REveVector &	vL,
		REveVector &	vR,
		Bool_t	project_result = `kFALSE`,
		Float_t	depth = `0`
	)

virtual

Find break-point on both sides of the discontinuity.

If project_result is true, the resulting break points will be projected with given depth value.

Definition at line 356 of file REveProjections.cxx.

◆ BisectBreakPoint() [2/2]

void REveProjection::BisectBreakPoint	(	REveVector &	vL,
		REveVector &	vR,
		Float_t	eps_sqr
	)

virtual

Find break-point on both sides of the discontinuity.

They still need to be projected after the call. This is an obsolete version of the method that required manual specification of precision – this lead to (infrequent) infinite loops.

Definition at line 338 of file REveProjections.cxx.

◆ ChangePreScaleEntry()

void REveProjection::ChangePreScaleEntry	(	Int_t	coord,
		Int_t	entry,
		Float_t	new_scale
	)

Change scale for given entry and coordinate.

NOTE: If the first entry you created used other value than 0, one entry (covering range from 0 to this value) was created automatically.

Definition at line 223 of file REveProjections.cxx.

◆ ClearPreScales()

void REveProjection::ClearPreScales ( )

Clear all pre-scaling information.

Definition at line 249 of file REveProjections.cxx.

◆ GetDisplaceOrigin()

Bool_t ROOT::Experimental::REveProjection::GetDisplaceOrigin ( ) const

inline

Definition at line 100 of file REveProjections.hxx.

◆ GetDistortion()

Float_t ROOT::Experimental::REveProjection::GetDistortion ( ) const

inline

Definition at line 118 of file REveProjections.hxx.

◆ GetFixR()

Float_t ROOT::Experimental::REveProjection::GetFixR ( ) const

inline

Definition at line 119 of file REveProjections.hxx.

◆ GetFixZ()

Float_t ROOT::Experimental::REveProjection::GetFixZ ( ) const

inline

Definition at line 120 of file REveProjections.hxx.

◆ GetGeoMode()

EGeoMode_e ROOT::Experimental::REveProjection::GetGeoMode ( ) const

inline

Definition at line 106 of file REveProjections.hxx.

◆ GetLimit()

Float_t ROOT::Experimental::REveProjection::GetLimit	(	Int_t	i,
		Bool_t	pos
	)

◆ GetMaxTrackStep()

Float_t ROOT::Experimental::REveProjection::GetMaxTrackStep ( ) const

inline

Definition at line 127 of file REveProjections.hxx.

◆ GetName()

const char * ROOT::Experimental::REveProjection::GetName ( ) const

inline

Definition at line 92 of file REveProjections.hxx.

◆ GetOrthogonalCenter()

REveVector REveProjection::GetOrthogonalCenter	(	int	idx,
		REveVector &	out
	)

Get center ortogonal to given axis index.

Definition at line 405 of file REveProjections.cxx.

◆ GetPastFixRFac()

Float_t ROOT::Experimental::REveProjection::GetPastFixRFac ( ) const

inline

Definition at line 123 of file REveProjections.hxx.

◆ GetPastFixZFac()

Float_t ROOT::Experimental::REveProjection::GetPastFixZFac ( ) const

inline

Definition at line 124 of file REveProjections.hxx.

◆ GetProjectedCenter()

Float_t * REveProjection::GetProjectedCenter ( )

virtual

Get projected center.

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 300 of file REveProjections.cxx.

◆ GetScreenVal() [1/2]

Float_t REveProjection::GetScreenVal	(	Int_t	ax,
		Float_t	value
	)

virtual

Project point on given axis and return projected value.

Definition at line 523 of file REveProjections.cxx.

◆ GetScreenVal() [2/2]

Float_t REveProjection::GetScreenVal	(	Int_t	i,
		Float_t	x,
		REveVector &	dirVec,
		REveVector &	oCenter
	)

Project point on given axis and return projected value.

Definition at line 508 of file REveProjections.cxx.

◆ GetType()

EPType_e ROOT::Experimental::REveProjection::GetType ( ) const

inline

Definition at line 103 of file REveProjections.hxx.

◆ GetUsePreScale()

Bool_t ROOT::Experimental::REveProjection::GetUsePreScale ( ) const

inline

Definition at line 108 of file REveProjections.hxx.

◆ GetValForScreenPos()

Float_t REveProjection::GetValForScreenPos	(	Int_t	ax,
		Float_t	value
	)

virtual

Inverse projection.

Definition at line 421 of file REveProjections.cxx.

◆ HasSeveralSubSpaces()

virtual Bool_t ROOT::Experimental::REveProjection::HasSeveralSubSpaces ( ) const

inlinevirtual

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 130 of file REveProjections.hxx.

◆ Is2D()

virtual Bool_t ROOT::Experimental::REveProjection::Is2D ( ) const

pure virtual

Implemented in ROOT::Experimental::REveRhoZProjection, ROOT::Experimental::REveRPhiProjection, and ROOT::Experimental::REve3DProjection.

◆ Is3D()

virtual Bool_t ROOT::Experimental::REveProjection::Is3D ( ) const

pure virtual

Implemented in ROOT::Experimental::REveRhoZProjection, ROOT::Experimental::REveRPhiProjection, and ROOT::Experimental::REve3DProjection.

◆ IsOnSubSpaceBoundrary()

virtual Bool_t ROOT::Experimental::REveProjection::IsOnSubSpaceBoundrary ( const REveVector & ) const

inlinevirtual

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 133 of file REveProjections.hxx.

◆ PreScalePoint() [1/2]

void REveProjection::PreScalePoint	(	Float_t &	x,
		Float_t &	y
	)

Pre-scale point (x, y) in projected coordinates for 2D projections:

RhoZ ~ (rho, z)
RPhi ~ (r, phi), scaling phi doesn't make much sense.

Definition at line 154 of file REveProjections.cxx.

◆ PreScalePoint() [2/2]

void REveProjection::PreScalePoint	(	Float_t &	x,
		Float_t &	y,
		Float_t &	z
	)

Pre-scale point (x, y, z) in projected coordinates for 3D projection.

Definition at line 163 of file REveProjections.cxx.

◆ PreScaleVariable()

void REveProjection::PreScaleVariable	(	Int_t	dim,
		Float_t &	v
	)

protected

Pre-scale single variable with pre-scale entry dim.

Definition at line 131 of file REveProjections.cxx.

◆ ProjectPoint()

virtual void ROOT::Experimental::REveProjection::ProjectPoint	(	Float_t &	x,
		Float_t &	y,
		Float_t &	z,
		Float_t	d,
		EPProc_e	p = `kPP_Full`
	)

pure virtual

Implemented in ROOT::Experimental::REveRhoZProjection, ROOT::Experimental::REveRPhiProjection, and ROOT::Experimental::REve3DProjection.

◆ ProjectPointdv() [1/2]

void REveProjection::ProjectPointdv	(	const REveTrans *	t,
		const Double_t *	p,
		Double_t *	v,
		Float_t	d
	)

Project double array, converting it to global coordinate system first if transformation matrix is set.

This is a bit piggish as we convert the doubles to floats and back.

Definition at line 99 of file REveProjections.cxx.

◆ ProjectPointdv() [2/2]

void REveProjection::ProjectPointdv	(	Double_t *	v,
		Float_t	d
	)

Project double array.

This is a bit piggish as we convert the doubles to floats and back.

Definition at line 65 of file REveProjections.cxx.

◆ ProjectPointfv() [1/2]

void REveProjection::ProjectPointfv	(	const REveTrans *	t,
		const Float_t *	p,
		Float_t *	v,
		Float_t	d
	)

Project float array, converting it to global coordinate system first if transformation matrix is set.

Definition at line 84 of file REveProjections.cxx.

◆ ProjectPointfv() [2/2]

void REveProjection::ProjectPointfv	(	Float_t *	v,
		Float_t	d
	)

Project float array.

Definition at line 56 of file REveProjections.cxx.

◆ ProjectVector() [1/2]

void REveProjection::ProjectVector	(	const REveTrans *	t,
		REveVector &	v,
		Float_t	d
	)

Project REveVector, converting it to global coordinate system first if transformation matrix is set.

Definition at line 119 of file REveProjections.cxx.

◆ ProjectVector() [2/2]

void REveProjection::ProjectVector	(	REveVector &	v,
		Float_t	d
	)

Project REveVector.

Definition at line 75 of file REveProjections.cxx.

◆ RefCenter()

const REveVector & ROOT::Experimental::REveProjection::RefCenter ( ) const

inline

Definition at line 95 of file REveProjections.hxx.

◆ SetCenter()

virtual void ROOT::Experimental::REveProjection::SetCenter ( REveVector & v )

inlinevirtual

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 96 of file REveProjections.hxx.

◆ SetDirectionalVector()

void REveProjection::SetDirectionalVector	(	Int_t	screenAxis,
		REveVector &	vec
	)

virtual

Get vector for axis in a projected space.

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 394 of file REveProjections.cxx.

◆ SetDisplaceOrigin()

void REveProjection::SetDisplaceOrigin ( bool x )

Set flag to displace for center.

This options is useful if want to have projected center at (0, 0) position in projected coordinates and want to dismiss gap around projected center in RhoZ projection.

Definition at line 316 of file REveProjections.cxx.

◆ SetDistortion()

void REveProjection::SetDistortion ( Float_t d )

Set distortion.

Definition at line 259 of file REveProjections.cxx.

◆ SetFixR()

void REveProjection::SetFixR ( Float_t x )

Set fixed radius.

Definition at line 271 of file REveProjections.cxx.

◆ SetFixZ()

void REveProjection::SetFixZ ( Float_t x )

Set fixed radius.

Definition at line 281 of file REveProjections.cxx.

◆ SetGeoMode()

void ROOT::Experimental::REveProjection::SetGeoMode ( EGeoMode_e m )

inline

Definition at line 105 of file REveProjections.hxx.

◆ SetMaxTrackStep()

void ROOT::Experimental::REveProjection::SetMaxTrackStep ( Float_t x )

inline

Definition at line 128 of file REveProjections.hxx.

◆ SetName()

void ROOT::Experimental::REveProjection::SetName ( const char * txt )

inline

Definition at line 93 of file REveProjections.hxx.

◆ SetPastFixRFac()

void REveProjection::SetPastFixRFac ( Float_t x )

Set 2's-exponent for relative scaling beyond FixR.

Definition at line 291 of file REveProjections.cxx.

◆ SetPastFixZFac()

void REveProjection::SetPastFixZFac ( Float_t x )

Set 2's-exponent for relative scaling beyond FixZ.

Definition at line 326 of file REveProjections.cxx.

◆ SetType()

void ROOT::Experimental::REveProjection::SetType ( EPType_e t )

inline

Definition at line 102 of file REveProjections.hxx.

◆ SetUsePreScale()

void ROOT::Experimental::REveProjection::SetUsePreScale ( Bool_t x )

inline

Definition at line 109 of file REveProjections.hxx.

◆ SubSpaceId()

virtual Int_t ROOT::Experimental::REveProjection::SubSpaceId ( const REveVector & ) const

inlinevirtual

Reimplemented in ROOT::Experimental::REveRhoZProjection.

Definition at line 132 of file REveProjections.hxx.

Member Data Documentation

◆ fCenter

REveVector ROOT::Experimental::REveProjection::fCenter

protected

Definition at line 55 of file REveProjections.hxx.

◆ fDisplaceOrigin

bool ROOT::Experimental::REveProjection::fDisplaceOrigin

protected

Definition at line 57 of file REveProjections.hxx.

◆ fDistortion

Float_t ROOT::Experimental::REveProjection::fDistortion

protected

Definition at line 62 of file REveProjections.hxx.

◆ fFixR

Float_t ROOT::Experimental::REveProjection::fFixR

protected

Definition at line 63 of file REveProjections.hxx.

◆ fFixZ

Float_t ROOT::Experimental::REveProjection::fFixZ

protected

Definition at line 64 of file REveProjections.hxx.

◆ fGeoMode

EGeoMode_e ROOT::Experimental::REveProjection::fGeoMode

protected

Definition at line 52 of file REveProjections.hxx.

◆ fgEps

Float_t REveProjection::fgEps = 0.005f

static

Definition at line 145 of file REveProjections.hxx.

◆ fgEpsSqr

Float_t REveProjection::fgEpsSqr = 0.000025f

static

Definition at line 146 of file REveProjections.hxx.

◆ fMaxTrackStep

Float_t ROOT::Experimental::REveProjection::fMaxTrackStep

protected

Definition at line 71 of file REveProjections.hxx.

◆ fName

std::string ROOT::Experimental::REveProjection::fName

protected

Definition at line 53 of file REveProjections.hxx.

◆ fPastFixRFac

Float_t ROOT::Experimental::REveProjection::fPastFixRFac

protected

Definition at line 65 of file REveProjections.hxx.

◆ fPastFixRScale

Float_t ROOT::Experimental::REveProjection::fPastFixRScale

protected

Definition at line 69 of file REveProjections.hxx.

◆ fPastFixZFac

Float_t ROOT::Experimental::REveProjection::fPastFixZFac

protected

Definition at line 66 of file REveProjections.hxx.

◆ fPastFixZScale

Float_t ROOT::Experimental::REveProjection::fPastFixZScale

protected

Definition at line 70 of file REveProjections.hxx.

◆ fPreScales

vPreScale_t ROOT::Experimental::REveProjection::fPreScales[3]

protected

Definition at line 60 of file REveProjections.hxx.

◆ fScaleR

Float_t ROOT::Experimental::REveProjection::fScaleR

protected

Definition at line 67 of file REveProjections.hxx.

◆ fScaleZ

Float_t ROOT::Experimental::REveProjection::fScaleZ

protected

Definition at line 68 of file REveProjections.hxx.

◆ fType

EPType_e ROOT::Experimental::REveProjection::fType

protected

Definition at line 51 of file REveProjections.hxx.

◆ fUsePreScale

Bool_t ROOT::Experimental::REveProjection::fUsePreScale

protected

Definition at line 59 of file REveProjections.hxx.

Libraries for ROOT::Experimental::REveProjection:

[legend]

Classes

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Member Typedef Documentation

◆ vPreScale_t

Member Enumeration Documentation

◆ EGeoMode_e

◆ EPProc_e

◆ EPType_e

Constructor & Destructor Documentation

◆ REveProjection()

◆ ~REveProjection()

Member Function Documentation

◆ AcceptSegment()

◆ AddPreScaleEntry()

◆ BisectBreakPoint() [1/2]

◆ BisectBreakPoint() [2/2]

◆ ChangePreScaleEntry()

◆ ClearPreScales()

◆ GetDisplaceOrigin()

◆ GetDistortion()

◆ GetFixR()

◆ GetFixZ()

◆ GetGeoMode()

◆ GetLimit()

◆ GetMaxTrackStep()

◆ GetName()

◆ GetOrthogonalCenter()

◆ GetPastFixRFac()

◆ GetPastFixZFac()

◆ GetProjectedCenter()

◆ GetScreenVal() [1/2]

◆ GetScreenVal() [2/2]

◆ GetType()

◆ GetUsePreScale()

◆ GetValForScreenPos()

◆ HasSeveralSubSpaces()

◆ Is2D()

◆ Is3D()

◆ IsOnSubSpaceBoundrary()

◆ PreScalePoint() [1/2]

◆ PreScalePoint() [2/2]

◆ PreScaleVariable()

◆ ProjectPoint()

◆ ProjectPointdv() [1/2]

◆ ProjectPointdv() [2/2]

◆ ProjectPointfv() [1/2]

◆ ProjectPointfv() [2/2]

◆ ProjectVector() [1/2]

◆ ProjectVector() [2/2]

◆ RefCenter()

◆ SetCenter()

◆ SetDirectionalVector()

◆ SetDisplaceOrigin()

◆ SetDistortion()

◆ SetFixR()

◆ SetFixZ()

◆ SetGeoMode()

◆ SetMaxTrackStep()

◆ SetName()

◆ SetPastFixRFac()

◆ SetPastFixZFac()

◆ SetType()

◆ SetUsePreScale()

◆ SubSpaceId()

Member Data Documentation

◆ fCenter

◆ fDisplaceOrigin

◆ fDistortion

◆ fFixR

◆ fFixZ

◆ fGeoMode

◆ fgEps

◆ fgEpsSqr

◆ fMaxTrackStep

◆ fName

◆ fPastFixRFac