generate isosurfaces/isolines from scalar values More...

#include <vtkHyperOctreeDualGridContourFilter.h>

Inheritance diagram for vtkHyperOctreeDualGridContourFilter:

Collaboration diagram for vtkHyperOctreeDualGridContourFilter:

Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkHyperOctreeDualGridContourFilter *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
unsigned long	GetMTime ()
void	CreateDefaultLocator ()

void	SetValue (int i, double value)

double	GetValue (int i)

double *	GetValues ()

void	GetValues (double *contourValues)

void	SetNumberOfContours (int number)

int	GetNumberOfContours ()

void	GenerateValues (int numContours, double range[2])

void	GenerateValues (int numContours, double rangeStart, double rangeEnd)

void	SetLocator (vtkIncrementalPointLocator *locator)
virtual vtkIncrementalPointLocator *	GetLocator ()
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkHyperOctreeDualGridContourFilter *	SafeDownCast (vtkObjectBase *o)
static vtkHyperOctreeDualGridContourFilter *	New ()
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkHyperOctreeDualGridContourFilter ()
	~vtkHyperOctreeDualGridContourFilter ()
virtual int	RequestData (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
virtual int	RequestUpdateExtent (vtkInformation , vtkInformationVector , vtkInformationVector )
virtual int	FillInputPortInformation (int port, vtkInformation *info)
void	ContourNode ()
void	TraverseNeighborhoodRecursively (vtkHyperOctreeLightWeightCursor neighborhood, unsigned short xyzIds)
void	EvaluatePoint (vtkHyperOctreeLightWeightCursor neighborhood, unsigned short xyzIds)
void	ContourNode1D ()
void	GenerateTraversalTable ()
Protected Attributes
vtkContourValues *	ContourValues
vtkIncrementalPointLocator *	Locator
vtkHyperOctree *	Input
vtkPolyData *	Output
vtkCellArray *	NewPolys
vtkDataSetAttributes *	InPD
vtkDataSetAttributes *	OutPD
vtkDataArray *	InScalars
double	Origin [3]
double	Size [3]
unsigned char	NeighborhoodTraversalTable [64]

Detailed Description

generate isosurfaces/isolines from scalar values

use of unsigned short to hold level index limits tree depth to 16.

To use this filter you must specify one or more contour values. You can either use the method SetValue() to specify each contour value, or use GenerateValues() to generate a series of evenly spaced contours. It is also possible to accelerate the operation of this filter (at the cost of extra memory) by using a vtkScalarTree. A scalar tree is used to quickly locate cells that contain a contour surface. This is especially effective if multiple contours are being extracted. If you want to use a scalar tree, invoke the method UseScalarTreeOn().

See also:: vtkMarchingContourFilter vtkKitwareContourFilter vtkMarchingCubes vtkSliceCubes vtkDividingCubes vtkMarchingSquares vtkImageMarchingCubes

Tests:: vtkHyperOctreeDualGridContourFilter (Tests)

Definition at line 60 of file vtkHyperOctreeDualGridContourFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkHyperOctreeDualGridContourFilter::Superclass

Reimplemented from vtkPolyDataAlgorithm.

Definition at line 63 of file vtkHyperOctreeDualGridContourFilter.h.

Constructor & Destructor Documentation

vtkHyperOctreeDualGridContourFilter::vtkHyperOctreeDualGridContourFilter ( ) [protected]

vtkHyperOctreeDualGridContourFilter::~vtkHyperOctreeDualGridContourFilter ( ) [protected]

Member Function Documentation

static int vtkHyperOctreeDualGridContourFilter::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 vtkPolyDataAlgorithm.

virtual int vtkHyperOctreeDualGridContourFilter::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 vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

vtkHyperOctreeDualGridContourFilter* vtkHyperOctreeDualGridContourFilter::NewInstance ( ) const

Reimplemented from vtkPolyDataAlgorithm.

void vtkHyperOctreeDualGridContourFilter::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 vtkPolyDataAlgorithm.

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

Construct object with initial range (0,1) and single contour value of 0.0.

Reimplemented from vtkPolyDataAlgorithm.

void vtkHyperOctreeDualGridContourFilter::SetValue	(	int	i,
		double	value
	)		`[inline]`

Methods to set / get contour values.

Set a particular contour value at contour number i. The index i ranges between 0<=i<NumberOfContours.

Definition at line 75 of file vtkHyperOctreeDualGridContourFilter.h.

double vtkHyperOctreeDualGridContourFilter::GetValue ( int i ) [inline]

Get the ith contour value.

Definition at line 83 of file vtkHyperOctreeDualGridContourFilter.h.

double* vtkHyperOctreeDualGridContourFilter::GetValues ( ) [inline]

Get a pointer to an array of contour values. There will be GetNumberOfContours() values in the list.

Definition at line 92 of file vtkHyperOctreeDualGridContourFilter.h.

void vtkHyperOctreeDualGridContourFilter::GetValues ( double * contourValues ) [inline]

Fill a supplied list with contour values. There will be GetNumberOfContours() values in the list. Make sure you allocate enough memory to hold the list.

Definition at line 102 of file vtkHyperOctreeDualGridContourFilter.h.

void vtkHyperOctreeDualGridContourFilter::SetNumberOfContours ( int number ) [inline]

Set the number of contours to place into the list. You only really need to use this method to reduce list size. The method SetValue() will automatically increase list size as needed.

Definition at line 112 of file vtkHyperOctreeDualGridContourFilter.h.

int vtkHyperOctreeDualGridContourFilter::GetNumberOfContours ( ) [inline]

Get the number of contours in the list of contour values.

Definition at line 120 of file vtkHyperOctreeDualGridContourFilter.h.

void vtkHyperOctreeDualGridContourFilter::GenerateValues	(	int	numContours,
		double	range[2]
	)		`[inline]`

Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values.

Definition at line 129 of file vtkHyperOctreeDualGridContourFilter.h.

void vtkHyperOctreeDualGridContourFilter::GenerateValues	(	int	numContours,
		double	rangeStart,
		double	rangeEnd
	)		`[inline]`

Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values.

Definition at line 138 of file vtkHyperOctreeDualGridContourFilter.h.

unsigned long vtkHyperOctreeDualGridContourFilter::GetMTime ( ) [virtual]

Modified GetMTime Because we delegate to vtkContourValues

Reimplemented from vtkObject.

void vtkHyperOctreeDualGridContourFilter::SetLocator ( vtkIncrementalPointLocator * locator )

Set / get a spatial locator for merging points. By default, an instance of vtkMergePoints is used.

virtual vtkIncrementalPointLocator* vtkHyperOctreeDualGridContourFilter::GetLocator ( ) [virtual]

Set / get a spatial locator for merging points. By default, an instance of vtkMergePoints is used.

void vtkHyperOctreeDualGridContourFilter::CreateDefaultLocator ( )

Create default locator. Used to create one when none is specified. The locator is used to merge coincident points.

virtual int vtkHyperOctreeDualGridContourFilter::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)		`[protected, virtual]`

This is called by the superclass. This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

virtual int vtkHyperOctreeDualGridContourFilter::RequestUpdateExtent	(	vtkInformation *	,
		vtkInformationVector **	,
		vtkInformationVector *
	)		`[protected, virtual]`

This is called by the superclass. This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

virtual int vtkHyperOctreeDualGridContourFilter::FillInputPortInformation	(	int	port,
		vtkInformation *	info
	)		`[protected, virtual]`

Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkPolyDataAlgorithm.

void vtkHyperOctreeDualGridContourFilter::ContourNode ( ) [protected]

Do the recursive contour of the node pointed by Cursor.

void vtkHyperOctreeDualGridContourFilter::TraverseNeighborhoodRecursively	(	vtkHyperOctreeLightWeightCursor *	neighborhood,
		unsigned short *	xyzIds
	)		`[protected]`