Implements a native ROOT-GL representation of an arbitrary set of polygons.

Definition at line 22 of file TGLFaceSet.h.

Public Member Functions
	TGLFaceSet (const TBuffer3D &buffer)
	constructor

void	CalculateNormals ()
	CalculateNormals.

virtual void	DirectDraw (TGLRnrCtx &rnrCtx) const
	Debug tracing.

void	EnforceTriangles ()
	Use GLU tesselator to replace all polygons with N > 3 with triangles.

UInt_t	GetNbPols ()

std::vector< Double_t > &	GetNormals ()

std::vector< Int_t > &	GetPolyDesc ()

std::vector< Double_t > &	GetVertices ()

void	SetFromMesh (const RootCsg::TBaseMesh *m)
	Should only be done on an empty faceset object.

Public Member Functions inherited from TGLLogicalShape
	TGLLogicalShape ()
	global flag for usage of display-lists in shapes that use vertex arrays

	TGLLogicalShape (const TBuffer3D &buffer)
	Constructor from TBuffer3D.

	TGLLogicalShape (TObject *obj)
	Constructor with external object.

virtual	~TGLLogicalShape ()
	Destroy logical shape.

void	AddRef (TGLPhysicalShape *phys) const
	Add reference to given physical shape.

virtual Bool_t	AlwaysSecondarySelect () const

const TGLBoundingBox &	BoundingBox () const

void	DestroyPhysicals ()
	Destroy all physicals attached to this logical.

virtual void	DLCacheClear ()
	Clear all entries for all LODs for this drawable from the display list cache but keeping the reserved ids from GL context.

virtual void	DLCacheDrop ()
	Drop all entries for all LODs for this drawable from the display list cache, WITHOUT returning the reserved ids to GL context.

virtual void	DLCachePurge ()
	Purge all entries for all LODs for this drawable from the display list cache, returning the reserved ids to GL context.

virtual UInt_t	DLOffset (Short_t) const

virtual void	Draw (TGLRnrCtx &rnrCtx) const
	Draw the GL drawable, using draw flags.

virtual void	DrawHighlight (TGLRnrCtx &rnrCtx, const TGLPhysicalShape *pshp, Int_t lvl=-1) const
	Draw the logical shape in highlight mode.

TObject *	GetExternal () const

const TGLPhysicalShape *	GetFirstPhysical () const

TGLScene *	GetScene () const

TObject *	ID () const

virtual Bool_t	IgnoreSizeForOfInterest () const
	Return true if size of this shape should be ignored when determining if the object should be drawn.

void	InvokeContextMenu (TContextMenu &menu, UInt_t x, UInt_t y) const
	Invoke popup menu or our bound external TObject (if any), using passed 'menu' object, at location 'x' 'y'.

virtual Bool_t	KeepDuringSmartRefresh () const

virtual void	ProcessSelection (TGLRnrCtx &rnrCtx, TGLSelectRecord &rec)
	Virtual method called-back after a secondary selection hit is recorded (see TGLViewer::HandleButton(), Ctrl-Button1).

virtual Short_t	QuantizeShapeLOD (Short_t shapeLOD, Short_t combiLOD) const
	Logical shapes usually support only discreet LOD values, especially in view of display-list caching.

UInt_t	Ref () const

Bool_t	SetDLCache (Bool_t cached)
	Modify capture of draws into display list cache kTRUE - capture, kFALSE direct draw.

virtual Bool_t	ShouldDLCache (const TGLRnrCtx &rnrCtx) const
	Returns kTRUE if draws should be display list cached kFALSE otherwise.

void	StrongRef (Bool_t strong) const

void	SubRef (TGLPhysicalShape *phys) const
	Remove reference to given physical shape, potentially deleting this object when hitting zero ref-count (if fRefStrong is true).

virtual ELODAxes	SupportedLODAxes () const

virtual Bool_t	SupportsSecondarySelect () const

UInt_t	UnrefFirstPhysical ()
	Unreferenced first physical in the list, returning its id and making it fit for destruction somewhere else.

virtual void	UpdateBoundingBox ()

void	UpdateBoundingBoxesOfPhysicals ()
	Update bounding-boxed of all dependent physicals.

Static Public Member Functions
static Bool_t	GetEnforceTriangles ()
	Get current state of static flag EnforceTriangles.

static void	SetEnforceTriangles (Bool_t e)
	Set state of static flag EnforceTriangles.

Static Public Member Functions inherited from TGLLogicalShape
static Bool_t	GetIgnoreSizeForCameraInterest ()
	Get state of static fgIgnoreSizeForCameraInterest flag.

static void	SetEnvDefaults ()

static void	SetIgnoreSizeForCameraInterest (Bool_t isfci)
	Set state of static fgIgnoreSizeForCameraInterest flag.

Private Member Functions
Int_t	CheckPoints (const Int_t source, Int_t dest) const
	CheckPoints.

void	GLDrawPolys () const

Static Private Member Functions
static Bool_t	Eq (const Double_t p1, const Double_t p2)
	test equality

Private Attributes
UInt_t	fNbPols

std::vector< Double_t >	fNormals

std::vector< Int_t >	fPolyDesc

std::vector< Double_t >	fVertices

Static Private Attributes
static Bool_t	fgEnforceTriangles = kFALSE

Additional Inherited Members
Public Types inherited from TGLLogicalShape
enum	ELODAxes { kLODAxesNone = 0 , kLODAxesX = 1 << 0 , kLODAxesY = 1 << 1 , kLODAxesZ = 1 << 2 , kLODAxesAll = kLODAxesX \| kLODAxesY \| kLODAxesZ }

Protected Member Functions inherited from TGLLogicalShape
void	PurgeDLRange (UInt_t base, Int_t size) const
	External object is a fake.

Protected Attributes inherited from TGLLogicalShape
TGLBoundingBox	fBoundingBox
	Also plays the role of ID.

UInt_t	fDLBase
	scene where object is stored (can be zero!)

Bool_t	fDLCache
	display-list validity bit-field

Int_t	fDLSize
	display-list id base

UShort_t	fDLValid
	display-list size for different LODs

TObject *	fExternalObj
	first replica

TGLPhysicalShape *	fFirstPhysical
	physical instance ref counting

Bool_t	fOwnExtObj
	Strong ref (delete on 0 ref); not in scene.

UInt_t	fRef

Bool_t	fRefStrong
	use display list caching

TGLScene *	fScene
	Shape's bounding box.

Static Protected Attributes inherited from TGLLogicalShape
static Bool_t	fgIgnoreSizeForCameraInterest = kFALSE

static Bool_t	fgUseDLs = kTRUE

static Bool_t	fgUseDLsForVertArrs = kTRUE
	global flag for usage of display-lists

#include <TGLFaceSet.h>

Inheritance diagram for TGLFaceSet:

[legend]

Constructor & Destructor Documentation

◆ TGLFaceSet()

TGLFaceSet::TGLFaceSet ( const TBuffer3D & buffer )

constructor

Definition at line 58 of file TGLFaceSet.cxx.

Member Function Documentation

◆ CalculateNormals()

void TGLFaceSet::CalculateNormals ( )

CalculateNormals.

Definition at line 396 of file TGLFaceSet.cxx.

◆ CheckPoints()

Int_t TGLFaceSet::CheckPoints	(	const Int_t *	source,
		Int_t *	dest
	)		const

private

CheckPoints.

Definition at line 352 of file TGLFaceSet.cxx.

◆ DirectDraw()

void TGLFaceSet::DirectDraw ( TGLRnrCtx & rnrCtx ) const

virtual

Debug tracing.

Implements TGLLogicalShape.

Definition at line 312 of file TGLFaceSet.cxx.

◆ EnforceTriangles()

void TGLFaceSet::EnforceTriangles ( )

Use GLU tesselator to replace all polygons with N > 3 with triangles.

After this call polygon descriptions are changed. New vertices are not expected – exception is thrown if this is requested by the triangulator. Support for adding of new vertices can be provided.

Definition at line 176 of file TGLFaceSet.cxx.

◆ Eq()

Bool_t TGLFaceSet::Eq	(	const Double_t *	p1,
		const Double_t *	p2
	)

staticprivate

test equality

Definition at line 385 of file TGLFaceSet.cxx.

◆ GetEnforceTriangles()

Bool_t TGLFaceSet::GetEnforceTriangles ( )

static

Get current state of static flag EnforceTriangles.

Definition at line 430 of file TGLFaceSet.cxx.

◆ GetNbPols()

UInt_t TGLFaceSet::GetNbPols ( )

inline

Definition at line 44 of file TGLFaceSet.h.

◆ GetNormals()

std::vector< Double_t > & TGLFaceSet::GetNormals ( )

inline

Definition at line 42 of file TGLFaceSet.h.

◆ GetPolyDesc()

std::vector< Int_t > & TGLFaceSet::GetPolyDesc ( )

inline

Definition at line 43 of file TGLFaceSet.h.

◆ GetVertices()

std::vector< Double_t > & TGLFaceSet::GetVertices ( )

inline

Definition at line 41 of file TGLFaceSet.h.

◆ GLDrawPolys()

void TGLFaceSet::GLDrawPolys ( ) const

private

◆ SetEnforceTriangles()

void TGLFaceSet::SetEnforceTriangles ( Bool_t e )

static

Set state of static flag EnforceTriangles.

When this is set, all tesselations will be automatically converted into triangle-only meshes. This is needed to export TGeo shapes and CSG meshes to external triangle-mesh libraries that can not handle arbitrary polygons.

Definition at line 442 of file TGLFaceSet.cxx.

◆ SetFromMesh()

void TGLFaceSet::SetFromMesh ( const RootCsg::TBaseMesh * m )

Should only be done on an empty faceset object.

Definition at line 134 of file TGLFaceSet.cxx.

Member Data Documentation

◆ fgEnforceTriangles

Bool_t TGLFaceSet::fgEnforceTriangles = kFALSE

staticprivate

Definition at line 30 of file TGLFaceSet.h.

◆ fNbPols

UInt_t TGLFaceSet::fNbPols

private

Definition at line 28 of file TGLFaceSet.h.

◆ fNormals

std::vector<Double_t> TGLFaceSet::fNormals

private

Definition at line 26 of file TGLFaceSet.h.

◆ fPolyDesc

std::vector<Int_t> TGLFaceSet::fPolyDesc

private

Definition at line 27 of file TGLFaceSet.h.

◆ fVertices

std::vector<Double_t> TGLFaceSet::fVertices

private

Definition at line 25 of file TGLFaceSet.h.

Libraries for TGLFaceSet:

[legend]

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

graf3d/gl/inc/TGLFaceSet.h
graf3d/gl/src/TGLFaceSet.cxx

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGLFaceSet()

Member Function Documentation

◆ CalculateNormals()

◆ CheckPoints()

◆ DirectDraw()

◆ EnforceTriangles()

◆ Eq()

◆ GetEnforceTriangles()

◆ GetNbPols()

◆ GetNormals()

◆ GetPolyDesc()

◆ GetVertices()

◆ GLDrawPolys()

◆ SetEnforceTriangles()

◆ SetFromMesh()

Member Data Documentation

◆ fgEnforceTriangles

◆ fNbPols

◆ fNormals

◆ fPolyDesc

◆ fVertices