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vtkGenericContourFilter Class Reference

generate isocontours from input dataset More...

#include <vtkGenericContourFilter.h>

Inherits vtkPolyDataAlgorithm.

Public Types

typedef vtkPolyDataAlgorithm Superclass
 
typedef double PointType [3]
 

Public Member Functions

virtual int IsA (const char *type)
 
vtkGenericContourFilterNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
unsigned long GetMTime ()
 
void CreateDefaultLocator ()
 
void SetValue (int i, float 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)
 
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 (vtkIncrementalPointLocator *locator)
 
virtual
vtkIncrementalPointLocator * 
GetLocator ()
 
virtual char * GetInputScalarsSelection ()
 
virtual void SelectInputScalars (const char *fieldName)
 

Static Public Member Functions

static int IsTypeOf (const char *type)
 
static vtkGenericContourFilterSafeDownCast (vtkObjectBase *o)
 
static vtkGenericContourFilterNew ()
 

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkGenericContourFilter ()
 
 ~vtkGenericContourFilter ()
 
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
int FillInputPortInformation (int, vtkInformation *)
 
virtual void SetInputScalarsSelection (const char *)
 

Protected Attributes

vtkContourValues * ContourValues
 
int ComputeNormals
 
int ComputeGradients
 
int ComputeScalars
 
vtkIncrementalPointLocator * Locator
 
char * InputScalarsSelection
 
vtkPointData * InternalPD
 
vtkPointData * SecondaryPD
 
vtkCellData * SecondaryCD
 

Detailed Description

generate isocontours from input dataset

vtkGenericContourFilter is a filter that takes as input any (generic) dataset and generates on output isosurfaces and/or isolines. The exact form of the output depends upon the dimensionality of the input data. Data consisting of 3D cells will generate isosurfaces, data consisting of 2D cells will generate isolines, and data with 1D or 0D cells will generate isopoints. Combinations of output type are possible if the input dimension is mixed.

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. You can use ComputeNormalsOn to compute the normals without the need of a vtkPolyDataNormals

This filter has been implemented to operate on generic datasets, rather than the typical vtkDataSet (and subclasses). vtkGenericDataSet is a more complex cousin of vtkDataSet, typically consisting of nonlinear, higher-order cells. To process this type of data, generic cells are automatically tessellated into linear cells prior to isocontouring.

See Also
vtkContourFilter vtkGenericDataSet
Tests:
vtkGenericContourFilter (Tests)

Definition at line 56 of file vtkGenericContourFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkGenericContourFilter::Superclass

Definition at line 60 of file vtkGenericContourFilter.h.

typedef double vtkGenericContourFilter::PointType[3]

Definition at line 69 of file vtkGenericContourFilter.h.

Constructor & Destructor Documentation

vtkGenericContourFilter::vtkGenericContourFilter ( )
protected
vtkGenericContourFilter::~vtkGenericContourFilter ( )
protected

Member Function Documentation

static int vtkGenericContourFilter::IsTypeOf ( const char *  type)
static
virtual int vtkGenericContourFilter::IsA ( const char *  type)
virtual
static vtkGenericContourFilter* vtkGenericContourFilter::SafeDownCast ( vtkObjectBase *  o)
static
virtual vtkObjectBase* vtkGenericContourFilter::NewInstanceInternal ( ) const
protectedvirtual
vtkGenericContourFilter* vtkGenericContourFilter::NewInstance ( ) const
void vtkGenericContourFilter::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
static vtkGenericContourFilter* vtkGenericContourFilter::New ( )
static

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

void vtkGenericContourFilter::SetValue ( int  i,
float  value 
)

Methods to set / get contour values.

double vtkGenericContourFilter::GetValue ( int  i)

Methods to set / get contour values.

double* vtkGenericContourFilter::GetValues ( )

Methods to set / get contour values.

void vtkGenericContourFilter::GetValues ( double *  contourValues)

Methods to set / get contour values.

void vtkGenericContourFilter::SetNumberOfContours ( int  number)

Methods to set / get contour values.

int vtkGenericContourFilter::GetNumberOfContours ( )

Methods to set / get contour values.

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

Methods to set / get contour values.

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

Methods to set / get contour values.

unsigned long vtkGenericContourFilter::GetMTime ( )

Modified GetMTime Because we delegate to vtkContourValues

virtual void vtkGenericContourFilter::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 vtkGenericContourFilter::GetComputeNormals ( )
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 void vtkGenericContourFilter::ComputeNormalsOn ( )
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 void vtkGenericContourFilter::ComputeNormalsOff ( )
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 void vtkGenericContourFilter::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 vtkGenericContourFilter::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 vtkGenericContourFilter::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 vtkGenericContourFilter::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 vtkGenericContourFilter::SetComputeScalars ( int  )
virtual

Set/Get the computation of scalars.

virtual int vtkGenericContourFilter::GetComputeScalars ( )
virtual

Set/Get the computation of scalars.

virtual void vtkGenericContourFilter::ComputeScalarsOn ( )
virtual

Set/Get the computation of scalars.

virtual void vtkGenericContourFilter::ComputeScalarsOff ( )
virtual

Set/Get the computation of scalars.

void vtkGenericContourFilter::SetLocator ( vtkIncrementalPointLocator *  locator)

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

virtual vtkIncrementalPointLocator* vtkGenericContourFilter::GetLocator ( )
virtual

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

void vtkGenericContourFilter::CreateDefaultLocator ( )

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

virtual char* vtkGenericContourFilter::GetInputScalarsSelection ( )
virtual

If you want to contour by an arbitrary scalar attribute, then set its name here. By default this in NULL and the filter will use the active scalar array.

virtual void vtkGenericContourFilter::SelectInputScalars ( const char *  fieldName)
virtual

If you want to contour by an arbitrary scalar attribute, then set its name here. By default this in NULL and the filter will use the active scalar array.

int vtkGenericContourFilter::RequestData ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protected
int vtkGenericContourFilter::FillInputPortInformation ( int  ,
vtkInformation *   
)
protected
virtual void vtkGenericContourFilter::SetInputScalarsSelection ( const char *  )
protectedvirtual

Member Data Documentation

vtkContourValues* vtkGenericContourFilter::ContourValues
protected

Definition at line 143 of file vtkGenericContourFilter.h.

int vtkGenericContourFilter::ComputeNormals
protected

Definition at line 144 of file vtkGenericContourFilter.h.

int vtkGenericContourFilter::ComputeGradients
protected

Definition at line 145 of file vtkGenericContourFilter.h.

int vtkGenericContourFilter::ComputeScalars
protected

Definition at line 146 of file vtkGenericContourFilter.h.

vtkIncrementalPointLocator* vtkGenericContourFilter::Locator
protected

Definition at line 147 of file vtkGenericContourFilter.h.

char* vtkGenericContourFilter::InputScalarsSelection
protected

Definition at line 149 of file vtkGenericContourFilter.h.

vtkPointData* vtkGenericContourFilter::InternalPD
protected

Definition at line 150 of file vtkGenericContourFilter.h.

vtkPointData* vtkGenericContourFilter::SecondaryPD
protected

Definition at line 154 of file vtkGenericContourFilter.h.

vtkCellData* vtkGenericContourFilter::SecondaryCD
protected

Definition at line 155 of file vtkGenericContourFilter.h.


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