Control points for vtkPiecewiseFunction. More...

#include <vtkPiecewiseControlPointsItem.h>

Inheritance diagram for vtkPiecewiseControlPointsItem:

Collaboration diagram for vtkPiecewiseControlPointsItem:

Public Types
typedef vtkControlPointsItem	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkPiecewiseControlPointsItem *	NewInstance () const
virtual void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	SetPiecewiseFunction (vtkPiecewiseFunction *function)
virtual vtkIdType	AddPoint (double *newPos)
virtual vtkIdType	RemovePoint (double *pos)

virtual vtkPiecewiseFunction *	GetPiecewiseFunction ()

virtual void	SetStrokeMode (bool)
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkPiecewiseControlPointsItem *	SafeDownCast (vtkObjectBase *o)
static vtkPiecewiseControlPointsItem *	New ()
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPiecewiseControlPointsItem ()
virtual	~vtkPiecewiseControlPointsItem ()
virtual void	emitEvent (unsigned long event, void *params=0)
virtual unsigned long int	GetControlPointsMTime ()
virtual vtkIdType	GetNumberOfPoints () const
virtual void	GetControlPoint (vtkIdType index, double *point) const
virtual void	SetControlPoint (vtkIdType index, double *point)
virtual void	EditPoint (float tX, float tY)
Protected Attributes
vtkPiecewiseFunction *	PiecewiseFunction

Detailed Description

Control points for vtkPiecewiseFunction.

vtkPiecewiseControlPointsItem draws the control points of a vtkPiecewiseFunction.

See also:: vtkControlPointsItem vtkPiecewiseFunctionItem vtkCompositeTransferFunctionItem

Examples:: vtkPiecewiseControlPointsItem (Examples)

Tests:: vtkPiecewiseControlPointsItem (Tests)

Definition at line 41 of file vtkPiecewiseControlPointsItem.h.

Member Typedef Documentation

typedef vtkControlPointsItem vtkPiecewiseControlPointsItem::Superclass

Reimplemented from vtkControlPointsItem.

Definition at line 44 of file vtkPiecewiseControlPointsItem.h.

Constructor & Destructor Documentation

vtkPiecewiseControlPointsItem::vtkPiecewiseControlPointsItem ( ) [protected]

virtual vtkPiecewiseControlPointsItem::~vtkPiecewiseControlPointsItem ( ) [protected, virtual]

Member Function Documentation

static int vtkPiecewiseControlPointsItem::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkControlPointsItem.

virtual int vtkPiecewiseControlPointsItem::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkControlPointsItem.

static vtkPiecewiseControlPointsItem* vtkPiecewiseControlPointsItem::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkControlPointsItem.

virtual vtkObjectBase* vtkPiecewiseControlPointsItem::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkControlPointsItem.

vtkPiecewiseControlPointsItem* vtkPiecewiseControlPointsItem::NewInstance ( ) const

Reimplemented from vtkControlPointsItem.

virtual void vtkPiecewiseControlPointsItem::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		`[virtual]`

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkControlPointsItem.

static vtkPiecewiseControlPointsItem* vtkPiecewiseControlPointsItem::New ( ) [static]

Creates a piecewise control points object

Reimplemented from vtkObject.

virtual void vtkPiecewiseControlPointsItem::SetPiecewiseFunction ( vtkPiecewiseFunction * function ) [virtual]

Set the piecewise function to draw its points

virtual vtkPiecewiseFunction* vtkPiecewiseControlPointsItem::GetPiecewiseFunction ( ) [virtual]

Get the piecewise function

virtual vtkIdType vtkPiecewiseControlPointsItem::AddPoint ( double * newPos ) [virtual]

Add a point to the function. Returns the index of the point (0 based), or -1 on error. Subclasses should reimplement this function to do the actual work.

Implements vtkControlPointsItem.

virtual vtkIdType vtkPiecewiseControlPointsItem::RemovePoint ( double * pos ) [virtual]

Remove a point of the function. Returns the index of the point (0 based), or -1 on error. Subclasses should reimplement this function to do the actual work.

Implements vtkControlPointsItem.

virtual void vtkPiecewiseControlPointsItem::SetStrokeMode ( bool ) [virtual]

Controls whether or not control points are drawn (true) or clicked and moved (false). False by default.

virtual void vtkPiecewiseControlPointsItem::emitEvent	(	unsigned long	event,
		void *	params = `0`
	)		`[protected, virtual]`

Implements vtkControlPointsItem.

virtual unsigned long int vtkPiecewiseControlPointsItem::GetControlPointsMTime ( ) [protected, virtual]

Must be reimplemented by subclasses to calculate the points to draw. It's subclass responsibility to call ComputePoints() via the callback

Implements vtkControlPointsItem.

virtual vtkIdType vtkPiecewiseControlPointsItem::GetNumberOfPoints ( ) const [protected, virtual]

Returns the total number of points

Implements vtkControlPointsItem.

virtual void vtkPiecewiseControlPointsItem::GetControlPoint	(	vtkIdType	index,
		double *	point
	)		const `[protected, virtual]`

Returns the x and y coordinates as well as the midpoint and sharpness of the control point corresponding to the index. point must be a double array of size 4.

Implements vtkControlPointsItem.