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

enum	EPProc_e { kPP_Plane, kPP_Distort, kPP_Full }

enum	EGeoMode_e { kGM_Unknown, kGM_Polygons, kGM_Segments }

typedef std::vector< PreScaleEntry_t >	vPreScale_t

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

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

virtual	~TEveProjection ()

virtual Bool_t	Is2D () const =0

virtual Bool_t	Is3D () const =0

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

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

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

void	ProjectVector (TEveVector &v, Float_t d)
	Project TEveVector. 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	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	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 Char_t *	GetName () const

void	SetName (const Char_t *txt)

const TEveVector &	RefCenter () const

virtual void	SetCenter (TEveVector &v)

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

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

Bool_t	GetDisplaceOrigin () const

void	SetType (EPType_e t)

EPType_e	GetType () const

void	SetGeoMode (EGeoMode_e m)

EGeoMode_e	GetGeoMode () const

Bool_t	GetUsePreScale () const

void	SetUsePreScale (Bool_t x)

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...

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

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

Float_t	GetDistortion () const

Float_t	GetFixR () const

Float_t	GetFixZ () const

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

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

Float_t	GetPastFixRFac () const

Float_t	GetPastFixZFac () const

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...

Float_t	GetMaxTrackStep () const

void	SetMaxTrackStep (Float_t x)

virtual Bool_t	HasSeveralSubSpaces () const

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

virtual Int_t	SubSpaceId (const TEveVector &) const

virtual Bool_t	IsOnSubSpaceBoundrary (const TEveVector &) const

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...

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

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

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

Float_t	GetLimit (Int_t i, Bool_t pos)
	Method previously used by TEveProjectionAxesGL. Now obsolete. More...

	ClassDef (TEveProjection, 0)

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
EPType_e	fType

EGeoMode_e	fGeoMode

TString	fName

TEveVector	fCenter

bool	fDisplaceOrigin

Bool_t	fUsePreScale

vPreScale_t	fPreScales [3]

Float_t	fDistortion

Float_t	fFixR

Float_t	fFixZ

Float_t	fPastFixRFac

Float_t	fPastFixZFac

Float_t	fScaleR

Float_t	fScaleZ

Float_t	fPastFixRScale

Float_t	fPastFixZScale

Float_t	fMaxTrackStep

#include <TEveProjections.h>

Inheritance diagram for TEveProjection:

Collaboration diagram for TEveProjection:

Member Typedef Documentation

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

Definition at line 50 of file TEveProjections.h.

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

Definition at line 49 of file TEveProjections.h.

Member Enumeration Documentation

enum TEveProjection::EGeoMode_e

Enumerator
kGM_Unknown
kGM_Polygons
kGM_Segments

Definition at line 31 of file TEveProjections.h.

enum TEveProjection::EPProc_e

Enumerator
kPP_Plane
kPP_Distort
kPP_Full

Definition at line 30 of file TEveProjections.h.

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 ( )

Constructor.

Definition at line 36 of file TEveProjections.cxx.

virtual TEveProjection::~TEveProjection ( )

inlinevirtual

Definition at line 79 of file TEveProjections.h.

Member Function Documentation

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

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 133 of file TEveProjections.h.

Referenced by BisectBreakPoint(), TEveTrackProjected::GetBreakPointIdx(), TEvePolygonSetProjected::MakePolygonsFromBP(), TEvePolygonSetProjected::MakePolygonsFromBS(), and TEveStraightLineSetProjected::UpdateProjection().

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.

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.

Referenced by TEveTrackProjected::MakeTrack(), and TEveStraightLineSetProjected::UpdateProjection().

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.

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.

TEveProjection::ClassDef	(	TEveProjection	,
		0
	)

void TEveProjection::ClearPreScales ( )

Clear all pre-scaling information.

Definition at line 248 of file TEveProjections.cxx.

Bool_t TEveProjection::GetDisplaceOrigin ( ) const

inline

Definition at line 102 of file TEveProjections.h.

Float_t TEveProjection::GetDistortion ( ) const

inline

Definition at line 120 of file TEveProjections.h.

Referenced by TEveProjectionManagerEditor::SetModel(), and TEveProjectionManager::UpdateName().

Float_t TEveProjection::GetFixR ( ) const

inline

Definition at line 121 of file TEveProjections.h.

Referenced by TEveProjectionManagerEditor::SetModel().

Float_t TEveProjection::GetFixZ ( ) const

inline

Definition at line 122 of file TEveProjections.h.

Referenced by TEveProjectionManagerEditor::SetModel().

EGeoMode_e TEveProjection::GetGeoMode ( ) const

inline

Definition at line 108 of file TEveProjections.h.

Referenced by TEvePolygonSetProjected::ProjectBuffer3D().

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.

Float_t TEveProjection::GetMaxTrackStep ( ) const

inline

Definition at line 129 of file TEveProjections.h.

Referenced by TEveTrackProjected::MakeTrack(), and TEveProjectionManagerEditor::SetModel().

const Char_t* TEveProjection::GetName ( ) const

inline

Definition at line 94 of file TEveProjections.h.

Referenced by TEveProjectionManager::UpdateName().

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

Get center ortogonal to given axis index.

Definition at line 414 of file TEveProjections.cxx.

Referenced by TEveProjectionAxesGL::SplitIntervalByVal().

Float_t TEveProjection::GetPastFixRFac ( ) const

inline

Definition at line 125 of file TEveProjections.h.

Referenced by TEveProjectionManagerEditor::SetModel().

Float_t TEveProjection::GetPastFixZFac ( ) const

inline

Definition at line 126 of file TEveProjections.h.

Referenced by TEveProjectionManagerEditor::SetModel().

Float_t * TEveProjection::GetProjectedCenter ( )

virtual

Get projected center.

Reimplemented in TEveRhoZProjection.

Definition at line 299 of file TEveProjections.cxx.

Referenced by TEveProjectionAxesGL::DirectDraw(), and TEveProjectionAxesGL::FilterOverlappingLabels().

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.

Referenced by TEveProjectionAxesGL::SplitIntervalByVal().

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.

EPType_e TEveProjection::GetType ( ) const

inline

Definition at line 105 of file TEveProjections.h.

Referenced by TEveCalo2D::BuildCellIdCache(), TEveJetConeProjectedGL::CalculatePoints(), TEveCalo2D::CellSelectionChangedInternal(), TEveCalo2DGL::IsRPhi(), TEveProjectionManagerEditor::SetModel(), and TEveCalo2D::UpdateProjection().

Bool_t TEveProjection::GetUsePreScale ( ) const

inline

Definition at line 110 of file TEveProjections.h.

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

virtual

Inverse projection.

Definition at line 430 of file TEveProjections.cxx.

Referenced by TEveProjectionAxesGL::SplitIntervalByPos(), and TEveProjectionAxesGL::SplitIntervalByVal().

virtual Bool_t TEveProjection::HasSeveralSubSpaces ( ) const

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 132 of file TEveProjections.h.

Referenced by TEveTrackProjected::GetBreakPointIdx(), TEveTrackProjected::MakeTrack(), and TEveStraightLineSetProjected::UpdateProjection().

virtual Bool_t TEveProjection::Is2D ( ) const

pure virtual

Implemented in TEve3DProjection, TEveRPhiProjection, and TEveRhoZProjection.

Referenced by TEveGeoShape::ProjectedClass(), TEveProjected::SetDepth(), TEveProjectionManager::SetProjection(), and TEveProjectionManager::UpdateName().

virtual Bool_t TEveProjection::Is3D ( ) const

pure virtual

Implemented in TEve3DProjection, TEveRPhiProjection, and TEveRhoZProjection.

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

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 135 of file TEveProjections.h.

Referenced by BisectBreakPoint().

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.

Referenced by TEveRhoZProjection::ProjectPoint(), TEveRPhiProjection::ProjectPoint(), and TEve3DProjection::ProjectPoint().

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.

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.

Referenced by PreScalePoint().

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.

Referenced by BisectBreakPoint(), TEveCalo2D::ComputeBBox(), TEveCalo2DGL::MakeRhoZCell(), TEveCalo2DGL::MakeRPhiCell(), TEvePolygonSetProjected::ProjectAndReducePoints(), ProjectPointdv(), ProjectPointfv(), and ProjectVector().

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.

Referenced by TEveTrackProjected::MakeTrack(), and TEveGeoShapeProjected::UpdateProjection().

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.

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

Project float array.

Definition at line 55 of file TEveProjections.cxx.

Referenced by TEveTrackProjected::MakeTrack(), TEveBoxProjected::UpdateProjection(), TEveLineProjected::UpdateProjection(), TEveStraightLineSetProjected::UpdateProjection(), and TEvePointSetProjected::UpdateProjection().

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.

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

Project TEveVector.

Definition at line 74 of file TEveProjections.cxx.

Referenced by BisectBreakPoint(), TEveJetConeProjectedGL::CalculatePoints(), TEveJetConeProjected::ComputeBBox(), TEveProjectionAxesGL::DirectDraw(), GetScreenVal(), and GetValForScreenPos().

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.

const TEveVector& TEveProjection::RefCenter ( ) const

inline

Definition at line 97 of file TEveProjections.h.

virtual void TEveProjection::SetCenter ( TEveVector & v )

inlinevirtual

Reimplemented in TEveRhoZProjection.

Definition at line 98 of file TEveProjections.h.

Referenced by TEveProjectionManager::SetCenter(), SetDisplaceOrigin(), and TEveProjectionManager::SetProjection().

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.

Referenced by GetOrthogonalCenter(), GetScreenVal(), GetValForScreenPos(), and TEveProjectionAxesGL::SplitIntervalByVal().

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.

void TEveProjection::SetDistortion ( Float_t d )

Set distortion.

Definition at line 258 of file TEveProjections.cxx.

Referenced by TEveProjectionManagerEditor::DoDistortion().

void TEveProjection::SetFixR ( Float_t x )

Set fixed radius.

Definition at line 270 of file TEveProjections.cxx.

Referenced by TEveProjectionManagerEditor::DoFixR().

void TEveProjection::SetFixZ ( Float_t x )

Set fixed radius.

Definition at line 280 of file TEveProjections.cxx.