Snaps points at the center of a cell. More...

#include <vtkCellCentersPointPlacer.h>

Inheritance diagram for vtkCellCentersPointPlacer:

Collaboration diagram for vtkCellCentersPointPlacer:

Public Types
enum	{ ParametricCenter = 0, CellPointsMean, None }
Public Member Functions
virtual void	AddProp (vtkProp *)
virtual void	RemoveViewProp (vtkProp *prop)
virtual void	RemoveAllProps ()
int	HasProp (vtkProp *)
int	GetNumberOfProps ()
virtual int	ValidateWorldPosition (double worldPos[3])
virtual int	ValidateDisplayPosition (vtkRenderer *, double displayPos[2])

virtual int	ComputeWorldPosition (vtkRenderer *ren, double displayPos[2], double worldPos[3], double worldOrient[9])

virtual int	ComputeWorldPosition (vtkRenderer *ren, double displayPos[2], double refWorldPos[3], double worldPos[3], double worldOrient[9])

virtual int	ValidateWorldPosition (double worldPos[3], double worldOrient[9])

virtual vtkCellPicker *	GetCellPicker ()

virtual void	SetMode (int)
virtual int	GetMode ()
Static Public Member Functions
static vtkCellCentersPointPlacer *	New ()
Protected Member Functions
	vtkCellCentersPointPlacer ()
	~vtkCellCentersPointPlacer ()
Protected Attributes
vtkPropCollection *	PickProps
vtkCellPicker *	CellPicker
int	Mode
typedef vtkPointPlacer	Superclass
static int	IsTypeOf (const char *type)
static vtkCellCentersPointPlacer *	SafeDownCast (vtkObject *o)
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)

Detailed Description

Snaps points at the center of a cell.

vtkCellCentersPointPlacer is a class to snap points on the center of cells. The class has 3 modes. In the ParametricCenter mode, it snaps points to the parametric center of the cell (see vtkCell). In CellPointsMean mode, points are snapped to the mean of the points in the cell. In 'None' mode, no snapping is performed. The computed world position is the picked position within the cell.

Usage:

The actors that render data and wish to be considered for placement by this placer are added to the list as

 placer->AddProp( actor );

See also:: vtkPointPlacer

Tests:: vtkCellCentersPointPlacer (Tests)

Definition at line 50 of file vtkCellCentersPointPlacer.h.

Member Typedef Documentation

typedef vtkPointPlacer vtkCellCentersPointPlacer::Superclass

Standard methods for instances of this class.

Reimplemented from vtkPointPlacer.

Definition at line 58 of file vtkCellCentersPointPlacer.h.

Member Enumeration Documentation

anonymous enum

Enumerator:

ParametricCenter
CellPointsMean
None

Definition at line 122 of file vtkCellCentersPointPlacer.h.

Constructor & Destructor Documentation

vtkCellCentersPointPlacer::vtkCellCentersPointPlacer ( ) [protected]

vtkCellCentersPointPlacer::~vtkCellCentersPointPlacer ( ) [protected]

Member Function Documentation

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

Instantiate this class.

Reimplemented from vtkPointPlacer.

virtual const char* vtkCellCentersPointPlacer::GetClassName ( ) [virtual]

Standard methods for instances of this class.

Reimplemented from vtkPointPlacer.

static int vtkCellCentersPointPlacer::IsTypeOf ( const char * type ) [static]

Standard methods for instances of this class.

Reimplemented from vtkPointPlacer.

virtual int vtkCellCentersPointPlacer::IsA ( const char * type ) [virtual]

Standard methods for instances of this class.

Reimplemented from vtkPointPlacer.

static vtkCellCentersPointPlacer* vtkCellCentersPointPlacer::SafeDownCast ( vtkObject * o ) [static]

Standard methods for instances of this class.

Reimplemented from vtkPointPlacer.

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

Standard methods for instances of this class.

Reimplemented from vtkPointPlacer.

virtual void vtkCellCentersPointPlacer::AddProp ( vtkProp * ) [virtual]

virtual void vtkCellCentersPointPlacer::RemoveViewProp ( vtkProp * prop ) [virtual]

virtual void vtkCellCentersPointPlacer::RemoveAllProps ( ) [virtual]

int vtkCellCentersPointPlacer::HasProp ( vtkProp * )

int vtkCellCentersPointPlacer::GetNumberOfProps ( )

virtual int vtkCellCentersPointPlacer::ComputeWorldPosition	(	vtkRenderer *	ren,
		double	displayPos[2],
		double	worldPos[3],
		double	worldOrient[9]
	)		`[virtual]`

Given a renderer and a display position in pixel coordinates, compute the world position and orientation where this point will be placed. This method is typically used by the representation to place the point initially. For the Terrain point placer this computes world points that lie at the specified height above the terrain.

Reimplemented from vtkPointPlacer.

virtual int vtkCellCentersPointPlacer::ComputeWorldPosition	(	vtkRenderer *	ren,
		double	displayPos[2],
		double	refWorldPos[3],
		double	worldPos[3],
		double	worldOrient[9]
	)		`[virtual]`

Given a renderer, a display position, and a reference world position, compute the new world position and orientation of this point. This method is typically used by the representation to move the point.

Reimplemented from vtkPointPlacer.

virtual int vtkCellCentersPointPlacer::ValidateWorldPosition ( double worldPos[3] ) [virtual]

Given a world position check the validity of this position according to the constraints of the placer

Reimplemented from vtkPointPlacer.

virtual int vtkCellCentersPointPlacer::ValidateDisplayPosition	(	vtkRenderer *	,
		double	displayPos[2]
	)		`[virtual]`

Given a display position, check the validity of this position.

Reimplemented from vtkPointPlacer.

virtual int vtkCellCentersPointPlacer::ValidateWorldPosition	(	double	worldPos[3],
		double	worldOrient[9]
	)		`[virtual]`

Given a world position and a world orientation, validate it according to the constraints of the placer.

Reimplemented from vtkPointPlacer.

virtual vtkCellPicker* vtkCellCentersPointPlacer::GetCellPicker ( ) [virtual]

Get the Prop picker.

virtual void vtkCellCentersPointPlacer::SetMode ( int ) [virtual]

Modes to change the point placement. Parametric center picks the parametric center within the cell. CellPointsMean picks the average of all points in the cell. When the mode is None, the input point is passed through unmodified. Default is CellPointsMean.

virtual int vtkCellCentersPointPlacer::GetMode ( ) [virtual]

Modes to change the point placement. Parametric center picks the parametric center within the cell. CellPointsMean picks the average of all points in the cell. When the mode is None, the input point is passed through unmodified. Default is CellPointsMean.