class TGLScaleManip: public TGLManip


TGLScaleManip

Scale manipulator - attaches to physical shape and draws local axes
widgets with box heads. User can mouse over (turns yellow) and L
click/drag to scale along this axis.
 Widgets use standard 3D package axes colours: X red, Y green, Z blue.

Function Members (Methods)

public:

	TGLScaleManip()
	TGLScaleManip(TGLPhysicalShape* shape)
	TGLScaleManip(const TGLScaleManip&)
virtual	~TGLScaleManip()
void	TGLManip::Attach(TGLPhysicalShape* shape)
static TClass*	Class()
virtual void	Draw(const TGLCamera& camera) const
Bool_t	TGLManip::GetActive() const
TGLPhysicalShape*	TGLManip::GetAttached() const
UInt_t	TGLManip::GetSelectedWidget() const
virtual Bool_t	HandleButton(const Event_t& event, const TGLCamera& camera)
virtual Bool_t	HandleMotion(const Event_t& event, const TGLCamera& camera)
virtual TClass*	IsA() const
virtual Bool_t	TGLManip::Select(const TGLCamera&, const TGLRect&, const TGLBoundingBox&)
void	TGLManip::SetActive(Bool_t a)
void	TGLManip::SetSelectedWidget(UInt_t s)
virtual void	ShowMembers(TMemberInspector& insp)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

protected:

void	TGLManip::CalcDrawScale(const TGLBoundingBox& box, const TGLCamera& camera, Double_t& base, TGLVector3* axis) const
const UChar_t*	TGLManip::ColorFor(UInt_t widget) const
TGLManip&	TGLManip::operator=(const TGLManip&)

private:

void	LimitScale(Double_t& factor) const

Data Members

protected:

Bool_t	TGLManip::fActive	! manipulator is active?
TPoint	TGLManip::fFirstMouse	! first (start) mouse position (in WINDOW coords)
TPoint	TGLManip::fLastMouse	! last (latest) mouse position (in WINDOW coords)
UInt_t	TGLManip::fSelectedWidget	! active width (axis) component
TGLPhysicalShape*	TGLManip::fShape	! manipulated shape

private:

TGLVector3	fStartScale	! initial scaling factors

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

TGLScaleManip()

 Construct scale manipulator not bound to any physical shape.

TGLScaleManip(TGLPhysicalShape* shape)

 Construct scale manipulator bound to TGLPhysicalShape 'shape'.

~TGLScaleManip()

 Destory the scale manipulator

void Draw(const TGLCamera& camera) const

 Draw scale manipulator - tubes with box heads, in local axes of
 attached shape, in red(X), green(Y) and blue(Z), with white center sphere.
 If selected widget (mouse over) this is drawn in active colour (yellow).

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

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

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

 Handle mouse motion over manipulator - if active (selected
 widget) scale physical along selected widget (axis) of the
 manipulator, so it tracks mouse action. Returns kTRUE if redraw
 required kFALSE otherwise.

void LimitScale(Double_t& factor) const

 Clamp scale to sizable values: 1000 - 1/1000
 Guards against div by zero problems.

TGLScaleManip()