Base-class for non-linear projections.

Enables to define an external center of distortion and a scale to fixate a bounding box of a projected point.

Definition at line 26 of file TEveProjections.h.

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 >::iterator	vPreScale_i

typedef std::vector< PreScaleEntry_t >	vPreScale_t

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

virtual	~TEveProjection ()

virtual Bool_t	AcceptSegment (TEveVector &, TEveVector &, 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 (TEveVector &vL, TEveVector &vR, Float_t eps_sqr)
	Find break-point on both sides of the discontinuity. More...

virtual void	BisectBreakPoint (TEveVector &vL, TEveVector &vR, Bool_t project_result=kFALSE, Float_t depth=0)
	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)
	Method previously used by TEveProjectionAxesGL. Now obsolete. More...

Float_t	GetMaxTrackStep () const

const Char_t *	GetName () const

TEveVector	GetOrthogonalCenter (int idx, TEveVector &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, TEveVector &dirVec, TEveVector &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 TEveVector &) 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 (Double_t *v, Float_t d)
	Project double array. More...

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

void	ProjectPointfv (const TEveTrans 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	ProjectVector (TEveVector &v, Float_t d)
	Project TEveVector. More...

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

const TEveVector &	RefCenter () const

virtual void	SetCenter (TEveVector &v)

virtual void	SetDirectionalVector (Int_t screenAxis, TEveVector &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_t *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 TEveVector &) 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
TEveVector	fCenter

bool	fDisplaceOrigin

Float_t	fDistortion

Float_t	fFixR

Float_t	fFixZ

EGeoMode_e	fGeoMode

Float_t	fMaxTrackStep

TString	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 <TEveProjections.h>

Inheritance diagram for TEveProjection:

[legend]

Member Typedef Documentation

◆ vPreScale_i

typedef std::vector<PreScaleEntry_t>::iterator TEveProjection::vPreScale_i

Definition at line 50 of file TEveProjections.h.

◆ vPreScale_t

typedef std::vector<PreScaleEntry_t> TEveProjection::vPreScale_t

Definition at line 49 of file TEveProjections.h.

Member Enumeration Documentation

◆ EGeoMode_e

enum TEveProjection::EGeoMode_e

Enumerator
kGM_Unknown
kGM_Polygons
kGM_Segments

Definition at line 31 of file TEveProjections.h.

◆ EPProc_e

enum TEveProjection::EPProc_e

Enumerator
kPP_Plane
kPP_Distort
kPP_Full

Definition at line 30 of file TEveProjections.h.

◆ EPType_e

enum TEveProjection::EPType_e

Enumerator
kPT_Unknown
kPT_RPhi
kPT_RhoZ
kPT_3D
kPT_End

Definition at line 29 of file TEveProjections.h.

Constructor & Destructor Documentation

◆ TEveProjection()

TEveProjection::TEveProjection ( )

Constructor.

Definition at line 36 of file TEveProjections.cxx.

◆ ~TEveProjection()

virtual TEveProjection::~TEveProjection ( )

inlinevirtual

Definition at line 79 of file TEveProjections.h.

Member Function Documentation

◆ AcceptSegment()

virtual Bool_t TEveProjection::AcceptSegment	(	TEveVector &	,
		TEveVector &	,
		Float_t
	)		const

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 133 of file TEveProjections.h.

◆ AddPreScaleEntry()

void TEveProjection::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 180 of file TEveProjections.cxx.

◆ BisectBreakPoint() [1/2]

void TEveProjection::BisectBreakPoint	(	TEveVector &	vL,
		TEveVector &	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 337 of file TEveProjections.cxx.

◆ BisectBreakPoint() [2/2]

void TEveProjection::BisectBreakPoint	(	TEveVector &	vL,
		TEveVector &	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 355 of file TEveProjections.cxx.

◆ ChangePreScaleEntry()

void TEveProjection::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 222 of file TEveProjections.cxx.

◆ ClearPreScales()

void TEveProjection::ClearPreScales ( )

Clear all pre-scaling information.

Definition at line 248 of file TEveProjections.cxx.

◆ GetDisplaceOrigin()

Bool_t TEveProjection::GetDisplaceOrigin ( ) const

inline

Definition at line 102 of file TEveProjections.h.

◆ GetDistortion()

Float_t TEveProjection::GetDistortion ( ) const

inline

Definition at line 120 of file TEveProjections.h.

◆ GetFixR()

Float_t TEveProjection::GetFixR ( ) const

inline

Definition at line 121 of file TEveProjections.h.

◆ GetFixZ()

Float_t TEveProjection::GetFixZ ( ) const

inline

Definition at line 122 of file TEveProjections.h.

◆ GetGeoMode()

EGeoMode_e TEveProjection::GetGeoMode ( ) const

inline

Definition at line 108 of file TEveProjections.h.

◆ GetLimit()

Float_t TEveProjection::GetLimit	(	Int_t	i,
		Bool_t	pos
	)

Method previously used by TEveProjectionAxesGL. Now obsolete.

Definition at line 393 of file TEveProjections.cxx.

◆ GetMaxTrackStep()

Float_t TEveProjection::GetMaxTrackStep ( ) const

inline

Definition at line 129 of file TEveProjections.h.

◆ GetName()

const Char_t* TEveProjection::GetName ( ) const

inline

Definition at line 94 of file TEveProjections.h.

◆ GetOrthogonalCenter()

TEveVector TEveProjection::GetOrthogonalCenter	(	int	idx,
		TEveVector &	out
	)

Get center ortogonal to given axis index.

Definition at line 414 of file TEveProjections.cxx.

◆ GetPastFixRFac()

Float_t TEveProjection::GetPastFixRFac ( ) const

inline

Definition at line 125 of file TEveProjections.h.

◆ GetPastFixZFac()

Float_t TEveProjection::GetPastFixZFac ( ) const

inline

Definition at line 126 of file TEveProjections.h.

◆ GetProjectedCenter()

Float_t * TEveProjection::GetProjectedCenter ( )

virtual

Get projected center.

Reimplemented in TEveRhoZProjection.

Definition at line 299 of file TEveProjections.cxx.

◆ GetScreenVal() [1/2]

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

virtual

Project point on given axis and return projected value.

Definition at line 532 of file TEveProjections.cxx.

◆ GetScreenVal() [2/2]

Float_t TEveProjection::GetScreenVal	(	Int_t	i,
		Float_t	x,
		TEveVector &	dirVec,
		TEveVector &	oCenter
	)

Project point on given axis and return projected value.

Definition at line 517 of file TEveProjections.cxx.

◆ GetType()

EPType_e TEveProjection::GetType ( ) const

inline

Definition at line 105 of file TEveProjections.h.

◆ GetUsePreScale()

Bool_t TEveProjection::GetUsePreScale ( ) const

inline

Definition at line 110 of file TEveProjections.h.

◆ GetValForScreenPos()

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

virtual

Inverse projection.

Definition at line 430 of file TEveProjections.cxx.

◆ HasSeveralSubSpaces()

virtual Bool_t TEveProjection::HasSeveralSubSpaces ( ) const

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 132 of file TEveProjections.h.

◆ Is2D()

virtual Bool_t TEveProjection::Is2D ( ) const

pure virtual

Implemented in TEve3DProjection, TEveRPhiProjection, and TEveRhoZProjection.

◆ Is3D()

virtual Bool_t TEveProjection::Is3D ( ) const

pure virtual

Implemented in TEve3DProjection, TEveRPhiProjection, and TEveRhoZProjection.

◆ IsOnSubSpaceBoundrary()

virtual Bool_t TEveProjection::IsOnSubSpaceBoundrary ( const TEveVector & ) const

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 135 of file TEveProjections.h.

◆ PreScalePoint() [1/2]

void TEveProjection::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 153 of file TEveProjections.cxx.

◆ PreScalePoint() [2/2]

void TEveProjection::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 162 of file TEveProjections.cxx.

◆ PreScaleVariable()

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

protected

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

Definition at line 130 of file TEveProjections.cxx.

◆ ProjectPoint()

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

pure virtual

Implemented in TEve3DProjection, TEveRPhiProjection, and TEveRhoZProjection.

◆ ProjectPointdv() [1/2]

void TEveProjection::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 64 of file TEveProjections.cxx.

◆ ProjectPointdv() [2/2]

void TEveProjection::ProjectPointdv	(	const TEveTrans *	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 98 of file TEveProjections.cxx.

◆ ProjectPointfv() [1/2]

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

Project float array.

Definition at line 55 of file TEveProjections.cxx.

◆ ProjectPointfv() [2/2]

void TEveProjection::ProjectPointfv	(	const TEveTrans *	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 83 of file TEveProjections.cxx.

◆ ProjectVector() [1/2]

void TEveProjection::ProjectVector	(	TEveVector &	v,
		Float_t	d
	)

Project TEveVector.

Definition at line 74 of file TEveProjections.cxx.

◆ ProjectVector() [2/2]

void TEveProjection::ProjectVector	(	const TEveTrans *	t,
		TEveVector &	v,
		Float_t	d
	)

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

Definition at line 118 of file TEveProjections.cxx.

◆ RefCenter()

const TEveVector& TEveProjection::RefCenter ( ) const

inline

Definition at line 97 of file TEveProjections.h.

◆ SetCenter()

virtual void TEveProjection::SetCenter ( TEveVector & v )

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 98 of file TEveProjections.h.

◆ SetDirectionalVector()

void TEveProjection::SetDirectionalVector	(	Int_t	screenAxis,
		TEveVector &	vec
	)

virtual

Get vector for axis in a projected space.

Reimplemented in TEveRhoZProjection.

Definition at line 403 of file TEveProjections.cxx.

◆ SetDisplaceOrigin()

void TEveProjection::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 315 of file TEveProjections.cxx.

◆ SetDistortion()

void TEveProjection::SetDistortion ( Float_t d )

Set distortion.

Definition at line 258 of file TEveProjections.cxx.

◆ SetFixR()

void TEveProjection::SetFixR ( Float_t x )

Set fixed radius.

Definition at line 270 of file TEveProjections.cxx.

◆ SetFixZ()

void TEveProjection::SetFixZ ( Float_t x )

Set fixed radius.

Definition at line 280 of file TEveProjections.cxx.

◆ SetGeoMode()

void TEveProjection::SetGeoMode ( EGeoMode_e m )

inline

Definition at line 107 of file TEveProjections.h.

◆ SetMaxTrackStep()

void TEveProjection::SetMaxTrackStep ( Float_t x )

inline

Definition at line 130 of file TEveProjections.h.

◆ SetName()

void TEveProjection::SetName ( const Char_t * txt )

inline

Definition at line 95 of file TEveProjections.h.

◆ SetPastFixRFac()

void TEveProjection::SetPastFixRFac ( Float_t x )

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

Definition at line 290 of file TEveProjections.cxx.

◆ SetPastFixZFac()

void TEveProjection::SetPastFixZFac ( Float_t x )

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

Definition at line 325 of file TEveProjections.cxx.

◆ SetType()

void TEveProjection::SetType ( EPType_e t )

inline

Definition at line 104 of file TEveProjections.h.

◆ SetUsePreScale()

void TEveProjection::SetUsePreScale ( Bool_t x )

inline

Definition at line 111 of file TEveProjections.h.

◆ SubSpaceId()

virtual Int_t TEveProjection::SubSpaceId ( const TEveVector & ) const

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 134 of file TEveProjections.h.

Member Data Documentation

◆ fCenter

TEveVector TEveProjection::fCenter

protected

Definition at line 57 of file TEveProjections.h.

◆ fDisplaceOrigin

bool TEveProjection::fDisplaceOrigin

protected

Definition at line 59 of file TEveProjections.h.

◆ fDistortion

Float_t TEveProjection::fDistortion

protected

Definition at line 64 of file TEveProjections.h.

◆ fFixR

Float_t TEveProjection::fFixR

protected

Definition at line 65 of file TEveProjections.h.

◆ fFixZ

Float_t TEveProjection::fFixZ

protected

Definition at line 66 of file TEveProjections.h.

◆ fGeoMode

EGeoMode_e TEveProjection::fGeoMode

protected

Definition at line 54 of file TEveProjections.h.

◆ fgEps

Float_t TEveProjection::fgEps = 0.005f

static

Definition at line 148 of file TEveProjections.h.

◆ fgEpsSqr

Float_t TEveProjection::fgEpsSqr = 0.000025f

static

Definition at line 149 of file TEveProjections.h.

◆ fMaxTrackStep

Float_t TEveProjection::fMaxTrackStep

protected

Definition at line 73 of file TEveProjections.h.

◆ fName

TString TEveProjection::fName

protected

Definition at line 55 of file TEveProjections.h.

◆ fPastFixRFac

Float_t TEveProjection::fPastFixRFac

protected

Definition at line 67 of file TEveProjections.h.

◆ fPastFixRScale

Float_t TEveProjection::fPastFixRScale

protected

Definition at line 71 of file TEveProjections.h.

◆ fPastFixZFac

Float_t TEveProjection::fPastFixZFac

protected

Definition at line 68 of file TEveProjections.h.

◆ fPastFixZScale

Float_t TEveProjection::fPastFixZScale

protected

Definition at line 72 of file TEveProjections.h.

◆ fPreScales

vPreScale_t TEveProjection::fPreScales[3]

protected

Definition at line 62 of file TEveProjections.h.

◆ fScaleR

Float_t TEveProjection::fScaleR

protected

Definition at line 69 of file TEveProjections.h.

◆ fScaleZ

Float_t TEveProjection::fScaleZ

protected

Definition at line 70 of file TEveProjections.h.

◆ fType

EPType_e TEveProjection::fType

protected

Definition at line 53 of file TEveProjections.h.

◆ fUsePreScale

Bool_t TEveProjection::fUsePreScale

protected

Definition at line 61 of file TEveProjections.h.

Libraries for TEveProjection:

[legend]

Classes

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Member Typedef Documentation

◆ vPreScale_i

◆ vPreScale_t

Member Enumeration Documentation

◆ EGeoMode_e

◆ EPProc_e

◆ EPType_e

Constructor & Destructor Documentation

◆ TEveProjection()

◆ ~TEveProjection()

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