vtkHyperOctreeContourFilter Class Reference

#include <vtkHyperOctreeContourFilter.h>

Inheritance diagram for vtkHyperOctreeContourFilter:

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Collaboration diagram for vtkHyperOctreeContourFilter:

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List of all members.


Detailed Description

generate isosurfaces/isolines from scalar values

vtkContourFilter is a filter that takes as input any 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. 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().

Warning:
For unstructured data or structured grids, normals and gradients are not computed. Use vtkPolyDataNormals to compute the surface normals.
See also:
vtkMarchingContourFilter vtkKitwareContourFilter vtkMarchingCubes vtkSliceCubes vtkDividingCubes vtkMarchingSquares vtkImageMarchingCubes
Tests:
vtkHyperOctreeContourFilter (Tests)

Definition at line 70 of file vtkHyperOctreeContourFilter.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)
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
vtkHyperOctreeContourFilter
SafeDownCast (vtkObject *o)
static
vtkHyperOctreeContourFilter
New ()

Protected Member Functions

 vtkHyperOctreeContourFilter ()
 ~vtkHyperOctreeContourFilter ()
virtual int RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual int FillInputPortInformation (int port, vtkInformation *info)
void ContourNode ()
double ComputePointValue (int ptIndices[3])
void ContourNode1D ()

Protected Attributes

vtkContourValuesContourValues
vtkIncrementalPointLocatorLocator
vtkIdListCellPts
vtkHyperOctreeInput
vtkPolyDataOutput
vtkCellArrayNewVerts
vtkCellArrayNewLines
vtkCellArrayNewPolys
vtkCellDataInCD
vtkPointDataInPD
vtkCellDataOutCD
vtkPointDataOutPD
vtkOrderedTriangulatorTriangulator
vtkHyperOctreeCursorSibling
vtkDoubleArrayCellScalars
vtkTetraTetra
vtkDoubleArrayTetScalars
vtkPolygonPolygon
vtkHyperOctreeCursorCursor
vtkHyperOctreeCursorNeighborCursor
vtkIdType CellTypeCounter [65536]
vtkIdType TotalCounter
vtkIdType TemplateCounter
vtkDataArrayInScalars
vtkHyperOctreeContourPointsGrabber * Grabber
vtkDoubleArrayPointScalars
int SortBy
int Iter
vtkLineLine
double LeftValue
double LeftCoord

Friends

class vtkHyperOctreeContourPointsGrabber

Member Typedef Documentation

Reimplemented from vtkPolyDataAlgorithm.

Definition at line 73 of file vtkHyperOctreeContourFilter.h.


Constructor & Destructor Documentation

vtkHyperOctreeContourFilter::vtkHyperOctreeContourFilter (  )  [protected]

vtkHyperOctreeContourFilter::~vtkHyperOctreeContourFilter (  )  [protected]


Member Function Documentation

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

Reimplemented from vtkPolyDataAlgorithm.

static int vtkHyperOctreeContourFilter::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 vtkHyperOctreeContourFilter::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 vtkHyperOctreeContourFilter* vtkHyperOctreeContourFilter::SafeDownCast ( vtkObject o  )  [static]

Reimplemented from vtkPolyDataAlgorithm.

void vtkHyperOctreeContourFilter::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 vtkHyperOctreeContourFilter* vtkHyperOctreeContourFilter::New (  )  [static]

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

Reimplemented from vtkPolyDataAlgorithm.

void vtkHyperOctreeContourFilter::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 85 of file vtkHyperOctreeContourFilter.h.

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

Get the ith contour value.

Definition at line 93 of file vtkHyperOctreeContourFilter.h.

double* vtkHyperOctreeContourFilter::GetValues (  )  [inline]

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

Definition at line 102 of file vtkHyperOctreeContourFilter.h.

void vtkHyperOctreeContourFilter::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 112 of file vtkHyperOctreeContourFilter.h.

void vtkHyperOctreeContourFilter::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 122 of file vtkHyperOctreeContourFilter.h.

int vtkHyperOctreeContourFilter::GetNumberOfContours (  )  [inline]

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

Definition at line 130 of file vtkHyperOctreeContourFilter.h.

void vtkHyperOctreeContourFilter::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 139 of file vtkHyperOctreeContourFilter.h.

void vtkHyperOctreeContourFilter::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 148 of file vtkHyperOctreeContourFilter.h.

unsigned long vtkHyperOctreeContourFilter::GetMTime (  )  [virtual]

Modified GetMTime Because we delegate to vtkContourValues

Reimplemented from vtkObject.

void vtkHyperOctreeContourFilter::SetLocator ( vtkIncrementalPointLocator locator  ) 

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

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

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

void vtkHyperOctreeContourFilter::CreateDefaultLocator (  ) 

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

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

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

Reimplemented from vtkPolyDataAlgorithm.

virtual int vtkHyperOctreeContourFilter::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 vtkHyperOctreeContourFilter::ContourNode (  )  [protected]

Do the recursive contour of the node pointed by Cursor.

double vtkHyperOctreeContourFilter::ComputePointValue ( int  ptIndices[3]  )  [protected]

(i,j,k) are point coordinates at last level

void vtkHyperOctreeContourFilter::ContourNode1D (  )  [protected]


Friends And Related Function Documentation

friend class vtkHyperOctreeContourPointsGrabber [friend]

Definition at line 236 of file vtkHyperOctreeContourFilter.h.


Member Data Documentation

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vtkHyperOctreeContourPointsGrabber* vtkHyperOctreeContourFilter::Grabber [protected]

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

Generated on Wed Aug 24 11:39:40 2011 for VTK by  doxygen 1.5.6