Rotate manipulator - attaches to physical shape and draws local axes widgets - rings drawn from attached physical center, in plane defined by axis.

User can mouse over (turns yellow) and L click/drag to rotate attached physical round the ring center. Widgets use standard 3D package axes colours: X red, Y green, Z blue.

Definition at line 18 of file TGLRotateManip.h.

Public Member Functions
	TGLRotateManip ()
	Construct rotation manipulator not bound to any physical shape.

	TGLRotateManip (TGLPhysicalShape *shape)
	Construct rotation manipulator bound to TGLPhysicalShape 'shape'.

virtual	~TGLRotateManip ()
	Destroy the rotation manipulator.

virtual void	Draw (const TGLCamera &camera) const
	Draw rotate manipulator - axis rings drawn from attached physical center, in plane defined by axis as normal, in red(X), green(Y) and blue(Z), with white center sphere.

virtual Bool_t	HandleButton (const Event_t &event, const TGLCamera &camera)
	Handle mouse button event over manipulator - returns kTRUE if redraw required kFALSE otherwise.

virtual Bool_t	HandleMotion (const Event_t &event, const TGLCamera &camera)
	Handle mouse motion over manipulator - if active (selected widget) rotate physical around selected ring widget plane normal.

Public Member Functions inherited from TGLManip
	TGLManip ()
	Construct a manipulator object, bound to supplied viewer, and no physical shape.

	TGLManip (TGLPhysicalShape *shape)
	Construct a manipulator object, bound to supplied physical shape.

virtual	~TGLManip ()
	Destroy manipulator object.

void	Attach (TGLPhysicalShape *shape)

Bool_t	GetActive () const

TGLPhysicalShape *	GetAttached () const

UInt_t	GetSelectedWidget () const

virtual Bool_t	Select (const TGLCamera &, const TGLRect &, const TGLBoundingBox &)

void	SetActive (Bool_t a)

void	SetSelectedWidget (UInt_t s)

Public Member Functions inherited from TVirtualGLManip
virtual	~TVirtualGLManip ()

Static Protected Member Functions
static Double_t	Angle (const TGLVector3 &v1, const TGLVector3 &v2)
	Calculate unsigned angle between vectors v1 and v2.

static Double_t	Angle (const TGLVector3 &v1, const TGLVector3 &v2, const TGLVector3 &ref)
	Calculate signed angle between vectors v1 and v2, using ref to define right handed coord system.

Private Member Functions
Double_t	CalculateAngleDelta (const TPoint &mouse, const TGLCamera &camera)
	Calculate angle delta for rotation based on new mouse position.

TGLLine3	CalculateRingLine (const TPoint &mouse, const TGLCamera &camera) const
	Calculated interaction line between 'mouse' viewport point, and current selected widget (ring), under supplied 'camera' projection.

void	DrawAxisRing (const TGLVertex3 &origin, const TGLVector3 &axis, Double_t radius, Float_t rgba[4]) const

Private Attributes
TGLVertex3	fActiveRingCenter
	plane of the active ring (widget)

TGLPlane	fActiveRingPlane
	front or back of the active shallow ring?

TGLLine3	fRingLine
	center of active ring

TGLLine3	fRingLineOld

Bool_t	fShallowFront
	does active ring form shallow angle to eye?

Bool_t	fShallowRing

Additional Inherited Members
Protected Member Functions inherited from TGLManip
	TGLManip (const TGLManip &)
	last (latest) mouse position (in WINDOW coords)

void	CalcDrawScale (const TGLBoundingBox &box, const TGLCamera &camera, Double_t &base, TGLVector3 axis[3]) const
	Calculates base and axis scale factor (in world units) for drawing manipulators with reasonable size range in current camera.

const UChar_t *	ColorFor (UInt_t widget) const
	Returns color to be used for given widget.

TGLManip &	operator= (const TGLManip &)
	Assignment operator.

Protected Attributes inherited from TGLManip
Bool_t	fActive
	active width (axis) component

TPoint	fFirstMouse
	manipulator is active?

TPoint	fLastMouse
	first (start) mouse position (in WINDOW coords)

UInt_t	fSelectedWidget
	manipulated shape

TGLPhysicalShape *	fShape

#include <TGLRotateManip.h>

Inheritance diagram for TGLRotateManip:

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Constructor & Destructor Documentation

◆ TGLRotateManip() [1/2]

TGLRotateManip::TGLRotateManip ( )

Construct rotation manipulator not bound to any physical shape.

Definition at line 57 of file TGLRotateManip.cxx.

◆ TGLRotateManip() [2/2]

TGLRotateManip::TGLRotateManip ( TGLPhysicalShape * shape )

Construct rotation manipulator bound to TGLPhysicalShape 'shape'.

Definition at line 69 of file TGLRotateManip.cxx.

◆ ~TGLRotateManip()

TGLRotateManip::~TGLRotateManip ( )

virtual

Destroy the rotation manipulator.

Definition at line 82 of file TGLRotateManip.cxx.

Member Function Documentation

◆ Angle() [1/2]

Double_t TGLRotateManip::Angle	(	const TGLVector3 &	v1,
		const TGLVector3 &	v2
	)

staticprotected

Calculate unsigned angle between vectors v1 and v2.

Definition at line 33 of file TGLRotateManip.cxx.

◆ Angle() [2/2]

Double_t TGLRotateManip::Angle	(	const TGLVector3 &	v1,
		const TGLVector3 &	v2,
		const TGLVector3 &	ref
	)

staticprotected

Calculate signed angle between vectors v1 and v2, using ref to define right handed coord system.

If v1.v2 parallel to ref vector: +ive for clockwise, -ive for anticlockwise
If v1.v2 antiparallel to ref vector: -ive for clockwise, +ive for anticlockwise

Definition at line 43 of file TGLRotateManip.cxx.

◆ CalculateAngleDelta()

Double_t TGLRotateManip::CalculateAngleDelta	(	const TPoint &	mouse,
		const TGLCamera &	camera
	)

private

Calculate angle delta for rotation based on new mouse position.

Definition at line 238 of file TGLRotateManip.cxx.

◆ CalculateRingLine()

TGLLine3 TGLRotateManip::CalculateRingLine	(	const TPoint &	mouse,
		const TGLCamera &	camera
	)		const

private

Calculated interaction line between 'mouse' viewport point, and current selected widget (ring), under supplied 'camera' projection.

Definition at line 272 of file TGLRotateManip.cxx.

◆ Draw()

void TGLRotateManip::Draw ( const TGLCamera & camera ) const

virtual

Draw rotate manipulator - axis rings drawn from attached physical center, in plane defined by axis as normal, in red(X), green(Y) and blue(Z), with white center sphere.

If selected widget (mouse over) this is drawn in active colour (yellow).

Implements TGLManip.

Definition at line 92 of file TGLRotateManip.cxx.

◆ DrawAxisRing()

void TGLRotateManip::DrawAxisRing	(	const TGLVertex3 &	origin,
		const TGLVector3 &	axis,
		Double_t	radius,
		Float_t	rgba[4]
	)		const

private

◆ HandleButton()

Bool_t TGLRotateManip::HandleButton	(	const Event_t &	event,
		const TGLCamera &	camera
	)

virtual

Handle mouse button event over manipulator - returns kTRUE if redraw required kFALSE otherwise.

Reimplemented from TGLManip.

Definition at line 174 of file TGLRotateManip.cxx.

◆ HandleMotion()

Bool_t TGLRotateManip::HandleMotion	(	const Event_t &	event,
		const TGLCamera &	camera
	)

virtual

Handle mouse motion over manipulator - if active (selected widget) rotate physical around selected ring widget plane normal.

Returns kTRUE if redraw required kFALSE otherwise.

Reimplemented from TGLManip.

Definition at line 221 of file TGLRotateManip.cxx.

Member Data Documentation

◆ fActiveRingCenter

TGLVertex3 TGLRotateManip::fActiveRingCenter

private

plane of the active ring (widget)

Definition at line 28 of file TGLRotateManip.h.

◆ fActiveRingPlane

TGLPlane TGLRotateManip::fActiveRingPlane

private

front or back of the active shallow ring?

Definition at line 27 of file TGLRotateManip.h.

◆ fRingLine

TGLLine3 TGLRotateManip::fRingLine

private

center of active ring

Definition at line 32 of file TGLRotateManip.h.

◆ fRingLineOld

TGLLine3 TGLRotateManip::fRingLineOld

private

Definition at line 33 of file TGLRotateManip.h.

◆ fShallowFront

Bool_t TGLRotateManip::fShallowFront

private

does active ring form shallow angle to eye?

Definition at line 26 of file TGLRotateManip.h.

◆ fShallowRing

Bool_t TGLRotateManip::fShallowRing

private

Definition at line 25 of file TGLRotateManip.h.

Libraries for TGLRotateManip:

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

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

Public Member Functions

Static Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGLRotateManip() [1/2]

◆ TGLRotateManip() [2/2]

◆ ~TGLRotateManip()

Member Function Documentation

◆ Angle() [1/2]

◆ Angle() [2/2]

◆ CalculateAngleDelta()

◆ CalculateRingLine()

◆ Draw()

◆ DrawAxisRing()

◆ HandleButton()

◆ HandleMotion()

Member Data Documentation

◆ fActiveRingCenter

◆ fActiveRingPlane

◆ fRingLine

◆ fRingLineOld

◆ fShallowFront

◆ fShallowRing