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vtkImplicitVolume Class Reference

#include <vtkImplicitVolume.h>

Inheritance diagram for vtkImplicitVolume:

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Collaboration diagram for vtkImplicitVolume:

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List of all members.

Detailed Description

treat a volume as if it were an implicit function

vtkImplicitVolume treats a volume (e.g., structured point dataset) as if it were an implicit function. This means it computes a function value and gradient. vtkImplicitVolume is a concrete implementation of vtkImplicitFunction.

vtkImplicitDataSet computes the function (at the point x) by performing cell interpolation. That is, it finds the cell containing x, and then uses the cell's interpolation functions to compute an interpolated scalar value at x. (A similar approach is used to find the gradient, if requested.) Points outside of the dataset are assigned the value of the ivar OutValue, and the gradient value OutGradient.

Warning:
The input volume data is only updated when GetMTime() is called. Works for 3D structured points datasets, 0D-2D datasets won't work properly.
See also:
vtkImplicitFunction vtkImplicitDataSet vtkClipPolyData vtkCutter vtkImplicitWindowFunction

Definition at line 47 of file vtkImplicitVolume.h.

Public Types

typedef vtkImplicitFunction Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
unsigned long GetMTime ()
double EvaluateFunction (double x[3])
double EvaluateFunction (double x, double y, double z)
void EvaluateGradient (double x[3], double n[3])
virtual void SetVolume (vtkImageData *)
virtual vtkImageDataGetVolume ()
virtual void SetOutValue (double)
virtual double GetOutValue ()
virtual void SetOutGradient (double, double, double)
virtual void SetOutGradient (double[3])
virtual double * GetOutGradient ()
virtual void GetOutGradient (double &, double &, double &)
virtual void GetOutGradient (double[3])

Static Public Member Functions

static int IsTypeOf (const char *type)
static vtkImplicitVolumeSafeDownCast (vtkObject *o)
static vtkImplicitVolumeNew ()

Protected Member Functions

 vtkImplicitVolume ()
 ~vtkImplicitVolume ()

Protected Attributes

vtkImageDataVolume
double OutValue
double OutGradient [3]
vtkIdListPointIds


Member Typedef Documentation

typedef vtkImplicitFunction vtkImplicitVolume::Superclass
 

Reimplemented from vtkImplicitFunction.

Definition at line 50 of file vtkImplicitVolume.h.


Constructor & Destructor Documentation

vtkImplicitVolume::vtkImplicitVolume  )  [protected]
 

vtkImplicitVolume::~vtkImplicitVolume  )  [protected]
 


Member Function Documentation

virtual const char* vtkImplicitVolume::GetClassName  )  [virtual]
 

Reimplemented from vtkImplicitFunction.

static int vtkImplicitVolume::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 vtkImplicitFunction.

virtual int vtkImplicitVolume::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 vtkImplicitFunction.

static vtkImplicitVolume* vtkImplicitVolume::SafeDownCast vtkObject o  )  [static]
 

Reimplemented from vtkImplicitFunction.

void vtkImplicitVolume::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 vtkImplicitFunction.

static vtkImplicitVolume* vtkImplicitVolume::New  )  [static]
 

Construct an vtkImplicitVolume with no initial volume; the OutValue set to a large negative number; and the OutGradient set to (0,0,1).

Reimplemented from vtkObject.

unsigned long vtkImplicitVolume::GetMTime  )  [virtual]
 

Returns the mtime also considering the volume. This also calls Update on the volume, and it therefore must be called before the function is evaluated.

Reimplemented from vtkImplicitFunction.

double vtkImplicitVolume::EvaluateFunction double  x[3]  )  [virtual]
 

Evaluate the ImplicitVolume. This returns the interpolated scalar value at x[3].

Implements vtkImplicitFunction.

double vtkImplicitVolume::EvaluateFunction double  x,
double  y,
double  z
[inline]
 

Returns the mtime also considering the volume. This also calls Update on the volume, and it therefore must be called before the function is evaluated.

Reimplemented from vtkImplicitFunction.

Definition at line 66 of file vtkImplicitVolume.h.

References vtkImplicitFunction::EvaluateFunction().

void vtkImplicitVolume::EvaluateGradient double  x[3],
double  n[3]
[virtual]
 

Evaluate ImplicitVolume gradient.

Implements vtkImplicitFunction.

virtual void vtkImplicitVolume::SetVolume vtkImageData  )  [virtual]
 

Specify the volume for the implicit function.

virtual vtkImageData* vtkImplicitVolume::GetVolume  )  [virtual]
 

Evaluate ImplicitVolume gradient.

virtual void vtkImplicitVolume::SetOutValue double   )  [virtual]
 

Set the function value to use for points outside of the dataset.

virtual double vtkImplicitVolume::GetOutValue  )  [virtual]
 

Set the function value to use for points outside of the dataset.

virtual void vtkImplicitVolume::SetOutGradient double  ,
double  ,
double 
[virtual]
 

Set the function gradient to use for points outside of the dataset.

virtual void vtkImplicitVolume::SetOutGradient double  [3]  )  [virtual]
 

Set the function gradient to use for points outside of the dataset.

virtual double* vtkImplicitVolume::GetOutGradient  )  [virtual]
 

Set the function gradient to use for points outside of the dataset.

virtual void vtkImplicitVolume::GetOutGradient double &  ,
double &  ,
double & 
[virtual]
 

Set the function gradient to use for points outside of the dataset.

virtual void vtkImplicitVolume::GetOutGradient double  [3]  )  [virtual]
 

Set the function gradient to use for points outside of the dataset.


Member Data Documentation

vtkImageData* vtkImplicitVolume::Volume [protected]
 

Definition at line 95 of file vtkImplicitVolume.h.

double vtkImplicitVolume::OutValue [protected]
 

Definition at line 96 of file vtkImplicitVolume.h.

double vtkImplicitVolume::OutGradient[3] [protected]
 

Definition at line 97 of file vtkImplicitVolume.h.

vtkIdList* vtkImplicitVolume::PointIds [protected]
 

Definition at line 99 of file vtkImplicitVolume.h.


The documentation for this class was generated from the following file:
Generated on Mon Jan 21 23:55:24 2008 for VTK by  doxygen 1.4.3-20050530