29#ifndef vtkImageStencilIterator_h
30#define vtkImageStencilIterator_h
46 this->BasePointer = 0;
48 this->SpanEndPointer = 0;
69 this->BasePointer =
static_cast<DType *
>(
71 this->UpdatePointer();
86 image,
extent, stencil, algorithm, threadId);
87 this->BasePointer =
static_cast<DType *
>(
89 this->UpdatePointer();
102 this->UpdatePointer();
119 return this->Pointer;
127 return this->SpanEndPointer;
138 this->Pointer = this->BasePointer + this->Id*this->Increment;
139 this->SpanEndPointer = this->BasePointer + this->SpanEnd*this->Increment;
152#ifndef vtkImageStencilIterator_cxx
154#pragma warning (push)
157#pragma warning (disable: 4910)
Superclass for all sources, filters, and sinks in VTK.
topologically and geometrically regular array of data
iterate over point data in an image.
void NextSpan()
Move the iterator to the beginning of the next span.
static void * GetVoidPointer(vtkImageData *image, vtkIdType i=0, int *pixelIncrement=0)
Get a void pointer and pixel increment for the given point Id.
void Initialize(vtkImageData *image, const int extent[6]=0, vtkImageStencilData *stencil=0, vtkAlgorithm *algorithm=0, int threadId=0)
Initialize an iterator.
bool IsAtEnd()
Test if the iterator has completed iterating over the entire extent.
efficient description of an image stencil
DType * BeginSpan()
Return a pointer to the beginning of the current span.
void NextSpan()
Move the iterator to the beginning of the next span.
void Initialize(vtkImageData *image, vtkImageStencilData *stencil=0, const int extent[6]=0, vtkAlgorithm *algorithm=0, int threadId=0)
Initialize an iterator.
void UpdatePointer()
Update the pointer (called automatically when a new span begins).
vtkImageStencilIterator(vtkImageData *image, vtkImageStencilData *stencil=0, const int extent[6]=0, vtkAlgorithm *algorithm=0, int threadId=0)
Create an iterator for the given image, with several options.
DType * EndSpan()
Return a pointer to the end of the current span.
bool IsAtEnd()
Test if the iterator has completed iterating over the entire extent.
vtkImageStencilIterator()
Default constructor, its use must be followed by Initialize().
#define vtkExternTemplateMacro(decl)
A macro to declare extern templates for all numerical types.