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82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkUnstructuredGridCellIterator.h
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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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/**
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* @class vtkUnstructuredGridCellIterator
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* @brief Implementation of vtkCellIterator
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* specialized for vtkUnstructuredGrid.
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*/
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#ifndef vtkUnstructuredGridCellIterator_h
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#define vtkUnstructuredGridCellIterator_h
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#include "vtkCommonDataModelModule.h" // For export macro
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#include "vtkCellIterator.h"
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#include "vtkSmartPointer.h" // For vtkSmartPointer
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class vtkCellArray;
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class vtkUnsignedCharArray;
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class vtkUnstructuredGrid;
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class vtkPoints;
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class VTKCOMMONDATAMODEL_EXPORT vtkUnstructuredGridCellIterator :
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public vtkCellIterator
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{
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public:
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static vtkUnstructuredGridCellIterator *New();
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vtkTypeMacro(vtkUnstructuredGridCellIterator, vtkCellIterator)
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void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
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bool IsDoneWithTraversal() VTK_OVERRIDE;
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vtkIdType GetCellId() VTK_OVERRIDE;
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protected:
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vtkUnstructuredGridCellIterator();
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~vtkUnstructuredGridCellIterator() VTK_OVERRIDE;
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void ResetToFirstCell() VTK_OVERRIDE;
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void IncrementToNextCell() VTK_OVERRIDE;
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void FetchCellType() VTK_OVERRIDE;
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void FetchPointIds() VTK_OVERRIDE;
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void FetchPoints() VTK_OVERRIDE;
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void FetchFaces() VTK_OVERRIDE;
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friend class vtkUnstructuredGrid;
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void SetUnstructuredGrid(vtkUnstructuredGrid *ug);
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unsigned char *CellTypeBegin;
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unsigned char *CellTypePtr;
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unsigned char *CellTypeEnd;
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vtkIdType *ConnectivityBegin;
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vtkIdType *ConnectivityPtr;
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vtkIdType *FacesBegin;
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vtkIdType *FacesLocsBegin;
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vtkIdType *FacesLocsPtr;
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// Cache misses make updating ConnectivityPtr in IncrementToNextCell too
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// expensive, so we wait to walk through the array until the point ids are
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// needed. This variable keeps track of how far we need to increment.
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vtkIdType SkippedCells;
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void CatchUpSkippedCells();
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vtkSmartPointer<vtkPoints> UnstructuredGridPoints;
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private:
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vtkUnstructuredGridCellIterator(const vtkUnstructuredGridCellIterator &) VTK_DELETE_FUNCTION;
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void operator=(const vtkUnstructuredGridCellIterator &) VTK_DELETE_FUNCTION;
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};
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#endif //vtkUnstructuredGridCellIterator_h
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