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78 lines
2.0 KiB
78 lines
2.0 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageIterator.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkImageIterator - a simple image iterator
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// .SECTION Description
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// This is a simple image iterator that can be used to iterate over an
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// image. This should be used internally by Filter writers.
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// .SECTION See also
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// vtkImageData vtkImageProgressIterator
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#ifndef __vtkImageIterator_h
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#define __vtkImageIterator_h
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#include "vtkSystemIncludes.h"
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class vtkImageData;
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template<class DType>
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class vtkImageIterator
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{
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public:
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typedef DType *SpanIterator;
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// Description:
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// Create an image iterator fora given image data and a given extent
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vtkImageIterator(vtkImageData *id, int *ext);
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// Description:
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// Move the iterator to the next span
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void NextSpan();
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// Description:
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// Return an iterator (pointer) for the span
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SpanIterator BeginSpan()
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{
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return this->Pointer;
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}
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// Description:
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// Return an iterator (pointer) for the end of the span
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SpanIterator EndSpan()
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{
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return this->SpanEndPointer;
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}
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// Description:
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// tets if the end of the extent has been reached
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int IsAtEnd()
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{
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return (this->Pointer >= this->EndPointer);
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}
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protected:
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DType *Pointer;
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DType *SpanEndPointer;
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DType *SliceEndPointer;
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DType *EndPointer;
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vtkIdType Increments[3];
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vtkIdType ContinuousIncrements[3];
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};
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#ifdef VTK_NO_EXPLICIT_TEMPLATE_INSTANTIATION
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#include "vtkImageIterator.txx"
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#endif
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#endif
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