---

vtkImageDivergence Class Reference

Divergence of a vector field. More...

#include <vtkImageDivergence.h>

Inheritance diagram for vtkImageDivergence:

[legend]Collaboration diagram for vtkImageDivergence:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
Static Public Methods
vtkImageDivergence *	New ()
int	IsTypeOf (const char *type)
vtkImageDivergence *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkImageDivergence ()
	~vtkImageDivergence ()
void	ComputeInputUpdateExtent (int inExt[6], int outExt[6])
void	ExecuteInformation (vtkImageData *inData, vtkImageData *outData)
void	ExecuteInformation ()
void	ThreadedExecute (vtkImageData *inData, vtkImageData *outData, int ext[6], int id)

---

Detailed Description

Divergence of a vector field.

Date:

2001/11/13 14:32:33

Revision:

1.27

Thanks:

Thanks to C. Charles Law who developed this class.

vtkImageDivergence takes a 3D vector field and creates a scalar field which which represents the rate of change of the vector field. The definition of Divergence: Given V = P(x,y,z), Q(x,y,z), R(x,y,z), Divergence = dP/dx + dQ/dy + dR/dz.

Tests:

vtkImageDivergence (Tests)

Definition at line 63 of file vtkImageDivergence.h.

---

Constructor & Destructor Documentation

vtkImageDivergence::vtkImageDivergence (    )  [inline, protected]

Definition at line 70 of file vtkImageDivergence.h.

vtkImageDivergence::~vtkImageDivergence (    )  [inline, protected]

Definition at line 71 of file vtkImageDivergence.h.

---

Member Function Documentation

vtkImageDivergence* vtkImageDivergence::New (    )  [static]

Instantiate object with no start, end, or progress methods. Reimplemented from vtkImageToImageFilter.

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

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageToImageFilter.

int vtkImageDivergence::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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageToImageFilter.

virtual int vtkImageDivergence::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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageToImageFilter.

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

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageToImageFilter.

void vtkImageDivergence::ComputeInputUpdateExtent (  int    inExt[6], int    outExt[6] )  [protected, virtual]

Reimplemented from vtkImageToImageFilter.

void vtkImageDivergence::ExecuteInformation (  vtkImageData *    inData, vtkImageData *    outData )  [protected, virtual]

Reimplemented from vtkImageToImageFilter.

void vtkImageDivergence::ExecuteInformation (    )  [inline, protected, virtual]

Reimplemented from vtkImageToImageFilter. Definition at line 75 of file vtkImageDivergence.h.

void vtkImageDivergence::ThreadedExecute (  vtkImageData *    inData, vtkImageData *    outData, int    ext[6], int    id )  [protected, virtual]

If the subclass does not define an Execute method, then the task will be broken up, multiple threads will be spawned, and each thread will call this method. It is public so that the thread functions can call this method. Reimplemented from vtkImageToImageFilter.

---

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

• Imaging/vtkImageDivergence.h

---