You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
3 weeks ago
|
/*=========================================================================
|
||
|
|
|
||
|
|
Program: Visualization Toolkit
|
||
|
|
Module: vtkGenericCellIterator.h
|
||
|
|
|
||
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
||
|
|
All rights reserved.
|
||
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
||
|
|
|
||
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
||
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||
|
|
PURPOSE. See the above copyright notice for more information.
|
||
|
|
|
||
|
|
=========================================================================*/
|
||
|
|
/**
|
||
|
|
* @class vtkGenericCellIterator
|
||
|
|
* @brief iterator used to traverse cells
|
||
|
|
*
|
||
|
|
* This class (and subclasses) are used to iterate over cells. Use it
|
||
|
|
* only in conjunction with vtkGenericDataSet (i.e., the adaptor framework).
|
||
|
|
*
|
||
|
|
* Typical use is:
|
||
|
|
* <pre>
|
||
|
|
* vtkGenericDataSet *dataset;
|
||
|
|
* vtkGenericCellIterator *it = dataset->NewCellIterator(2);
|
||
|
|
* for (it->Begin(); !it->IsAtEnd(); it->Next());
|
||
|
|
* {
|
||
|
|
* spec=it->GetCell();
|
||
|
|
* }
|
||
|
|
* </pre>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef vtkGenericCellIterator_h
|
||
|
|
#define vtkGenericCellIterator_h
|
||
|
|
|
||
|
|
#include "vtkCommonDataModelModule.h" // For export macro
|
||
|
|
#include "vtkObject.h"
|
||
|
|
|
||
|
|
class vtkGenericAdaptorCell;
|
||
|
|
|
||
|
|
class VTKCOMMONDATAMODEL_EXPORT vtkGenericCellIterator : public vtkObject
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
//@{
|
||
|
|
/**
|
||
|
|
* Standard VTK construction and type macros.
|
||
|
|
*/
|
||
|
|
vtkTypeMacro(vtkGenericCellIterator,vtkObject);
|
||
|
|
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
|
||
|
|
//@}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Move iterator to first position if any (loop initialization).
|
||
|
|
*/
|
||
|
|
virtual void Begin() = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Is the iterator at the end of traversal?
|
||
|
|
*/
|
||
|
|
virtual int IsAtEnd() = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create an empty cell. The user is responsible for deleting it.
|
||
|
|
* \post result_exists: result!=0
|
||
|
|
*/
|
||
|
|
virtual vtkGenericAdaptorCell *NewCell() = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the cell at current position. The cell should be instantiated
|
||
|
|
* with the NewCell() method.
|
||
|
|
* \pre not_at_end: !IsAtEnd()
|
||
|
|
* \pre c_exists: c!=0
|
||
|
|
* THREAD SAFE
|
||
|
|
*/
|
||
|
|
virtual void GetCell(vtkGenericAdaptorCell *c) = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the cell at the current traversal position.
|
||
|
|
* NOT THREAD SAFE
|
||
|
|
* \pre not_at_end: !IsAtEnd()
|
||
|
|
* \post result_exits: result!=0
|
||
|
|
*/
|
||
|
|
virtual vtkGenericAdaptorCell *GetCell() = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Move the iterator to the next position in the list.
|
||
|
|
* \pre not_at_end: !IsAtEnd()
|
||
|
|
*/
|
||
|
|
virtual void Next() = 0;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
vtkGenericCellIterator();
|
||
|
|
~vtkGenericCellIterator() VTK_OVERRIDE;
|
||
|
|
|
||
|
|
private:
|
||
|
|
vtkGenericCellIterator(const vtkGenericCellIterator&) VTK_DELETE_FUNCTION;
|
||
|
|
void operator=(const vtkGenericCellIterator&) VTK_DELETE_FUNCTION;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|