vtkMarchingCubes Class Reference

#include <vtkMarchingCubes.h>

Inheritance diagram for vtkMarchingCubes:

[legend]Collaboration diagram for vtkMarchingCubes:

[legend]List of all members.

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Detailed Description

generate isosurface(s) from volume

vtkMarchingCubes is a filter that takes as input a volume (e.g., 3D structured point set) and generates on output one or more isosurfaces. One or more contour values must be specified to generate the isosurfaces. Alternatively, you can specify a min/max scalar range and the number of contours to generate a series of evenly spaced contour values.

Warning:

This filter is specialized to volumes. If you are interested in contouring other types of data, use the general vtkContourFilter. If you want to contour an image (i.e., a volume slice), use vtkMarchingSquares.

See also:

vtkContourFilter vtkSliceCubes vtkMarchingSquares vtkDividingCubes

Tests:

vtkMarchingCubes (Tests)

Definition at line 44 of file vtkMarchingCubes.h.

Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	GetValues (double *contourValues)
void	CreateDefaultLocator ()
void	SetValue (int i, double value)
double	GetValue (int i)
double *	GetValues ()
void	SetNumberOfContours (int number)
int	GetNumberOfContours ()
void	GenerateValues (int numContours, double range[2])
void	GenerateValues (int numContours, double rangeStart, double rangeEnd)
unsigned long int	GetMTime ()
virtual void	SetComputeNormals (int)
virtual int	GetComputeNormals ()
virtual void	ComputeNormalsOn ()
virtual void	ComputeNormalsOff ()
virtual void	SetComputeGradients (int)
virtual int	GetComputeGradients ()
virtual void	ComputeGradientsOn ()
virtual void	ComputeGradientsOff ()
virtual void	SetComputeScalars (int)
virtual int	GetComputeScalars ()
virtual void	ComputeScalarsOn ()
virtual void	ComputeScalarsOff ()
void	SetLocator (vtkPointLocator *locator)
virtual vtkPointLocator *	GetLocator ()
Static Public Member Functions
static vtkMarchingCubes *	New ()
static int	IsTypeOf (const char *type)
static vtkMarchingCubes *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkMarchingCubes ()
	~vtkMarchingCubes ()
virtual int	RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual int	FillInputPortInformation (int port, vtkInformation *info)
Protected Attributes
vtkContourValues *	ContourValues
int	ComputeNormals
int	ComputeGradients
int	ComputeScalars
vtkPointLocator *	Locator

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Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkMarchingCubes::Superclass

Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes. Definition at line 48 of file vtkMarchingCubes.h.

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Constructor & Destructor Documentation

vtkMarchingCubes::vtkMarchingCubes (   )  [protected]

vtkMarchingCubes::~vtkMarchingCubes (   )  [protected]

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Member Function Documentation

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

Create an object with Debug turned off, modified time initialized to zero, and reference counting on. Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes.

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

Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes.

static int vtkMarchingCubes::IsTypeOf (  const char *  type  )  [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 vtkTypeRevisionMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes.

virtual int vtkMarchingCubes::IsA (  const char *  type  )  [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 vtkTypeRevisionMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes.

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

Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes.

void vtkMarchingCubes::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.

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

Set a particular contour value at contour number i. The index i ranges between 0<=i<NumberOfContours. Definition at line 123 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::SetValue().

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

Get the ith contour value. Definition at line 128 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::GetValue().

double * vtkMarchingCubes::GetValues (   )  [inline]

Get a pointer to an array of contour values. There will be GetNumberOfContours() values in the list. Definition at line 135 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::GetValues().

void vtkMarchingCubes::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 142 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::GetValues().

void vtkMarchingCubes::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 148 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::SetNumberOfContours().

int vtkMarchingCubes::GetNumberOfContours (   )  [inline]

Get the number of contours in the list of contour values. Definition at line 153 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::GetNumberOfContours().

void vtkMarchingCubes::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 160 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::GenerateValues().

void vtkMarchingCubes::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 167 of file vtkMarchingCubes.h. References ContourValues, and vtkContourValues::GenerateValues().

unsigned long int vtkMarchingCubes::GetMTime (   )  [virtual]

Return this object's modified time. Reimplemented from vtkObject.

virtual void vtkMarchingCubes::SetComputeNormals (  int   )  [virtual]

Set/Get the computation of normals. Normal computation is fairly expensive in both time and storage. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.

virtual int vtkMarchingCubes::GetComputeNormals (   )  [virtual]

virtual void vtkMarchingCubes::ComputeNormalsOn (   )  [virtual]

virtual void vtkMarchingCubes::ComputeNormalsOff (   )  [virtual]

virtual void vtkMarchingCubes::SetComputeGradients (  int   )  [virtual]

Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.

virtual int vtkMarchingCubes::GetComputeGradients (   )  [virtual]

Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.

virtual void vtkMarchingCubes::ComputeGradientsOn (   )  [virtual]

Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.

virtual void vtkMarchingCubes::ComputeGradientsOff (   )  [virtual]

Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.

virtual void vtkMarchingCubes::SetComputeScalars (  int   )  [virtual]

Set/Get the computation of scalars.

virtual int vtkMarchingCubes::GetComputeScalars (   )  [virtual]

Set/Get the computation of scalars.

virtual void vtkMarchingCubes::ComputeScalarsOn (   )  [virtual]

Set/Get the computation of scalars.

virtual void vtkMarchingCubes::ComputeScalarsOff (   )  [virtual]

Set/Get the computation of scalars.

void vtkMarchingCubes::SetLocator (  vtkPointLocator *  locator  )

Overide the default locator. Useful for changing the number of bins for performance or specifying a more aggressive locator.

virtual vtkPointLocator* vtkMarchingCubes::GetLocator (   )  [virtual]

Overide the default locator. Useful for changing the number of bins for performance or specifying a more aggressive locator.

void vtkMarchingCubes::CreateDefaultLocator (   )

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

virtual int vtkMarchingCubes::RequestData (  vtkInformation *  , vtkInformationVector **  , vtkInformationVector *  )  [protected, virtual]

This is called by the superclass. This is the method you should override. Reimplemented from vtkPolyDataAlgorithm. Reimplemented in vtkDiscreteMarchingCubes.

virtual int vtkMarchingCubes::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.

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Member Data Documentation

vtkContourValues* vtkMarchingCubes::ContourValues [protected]

Definition at line 111 of file vtkMarchingCubes.h. Referenced by GenerateValues(), GetNumberOfContours(), GetValue(), GetValues(), SetNumberOfContours(), and SetValue().

int vtkMarchingCubes::ComputeNormals [protected]

Definition at line 112 of file vtkMarchingCubes.h.

int vtkMarchingCubes::ComputeGradients [protected]

Definition at line 113 of file vtkMarchingCubes.h.

int vtkMarchingCubes::ComputeScalars [protected]

Definition at line 114 of file vtkMarchingCubes.h.

vtkPointLocator* vtkMarchingCubes::Locator [protected]

Definition at line 115 of file vtkMarchingCubes.h.

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

• dox/Graphics/vtkMarchingCubes.h

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