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111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkUniformGridAMRDataIterator.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 vtkUniformGridAMRDataIterator
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* @brief subclass of vtkCompositeDataIterator
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* with API to get current level and dataset index.
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*
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*/
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#ifndef vtkUniformGridAMRDataIterator_h
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#define vtkUniformGridAMRDataIterator_h
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#include "vtkCommonDataModelModule.h" // For export macro
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#include "vtkCompositeDataIterator.h"
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#include "vtkSmartPointer.h" //for member variable Information
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class vtkInformation;
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class vtkAMRInformation;
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class vtkAMRDataInternals;
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class vtkUniformGridAMR;
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class AMRIndexIterator;
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class VTKCOMMONDATAMODEL_EXPORT vtkUniformGridAMRDataIterator : public vtkCompositeDataIterator
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{
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public:
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static vtkUniformGridAMRDataIterator* New();
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vtkTypeMacro(vtkUniformGridAMRDataIterator, vtkCompositeDataIterator);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Returns the meta-data associated with the current item.
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* Note that this points to a single instance of vtkInformation object
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* allocated by the iterator and will be changed as soon as GoToNextItem is
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* called.
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*/
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vtkInformation* GetCurrentMetaData() override;
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int HasCurrentMetaData() override { return 1; }
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/**
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* Returns the current item. Valid only when IsDoneWithTraversal() returns 0.
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*/
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vtkDataObject* GetCurrentDataObject() override;
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/**
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* Flat index is an index obtained by traversing the tree in preorder.
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* This can be used to uniquely identify nodes in the tree.
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* Not valid if IsDoneWithTraversal() returns true.
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*/
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unsigned int GetCurrentFlatIndex() override;
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/**
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* Returns the level for the current dataset.
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*/
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virtual unsigned int GetCurrentLevel();
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/**
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* Returns the dataset index for the current data object. Valid only if the
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* current data is a leaf node i.e. no a composite dataset.
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*/
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virtual unsigned int GetCurrentIndex();
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/**
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* Move the iterator to the beginning of the collection.
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*/
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void GoToFirstItem() override;
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/**
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* Move the iterator to the next item in the collection.
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*/
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void GoToNextItem() override;
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/**
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* Test whether the iterator is finished with the traversal.
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* Returns 1 for yes, and 0 for no.
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* It is safe to call any of the GetCurrent...() methods only when
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* IsDoneWithTraversal() returns 0.
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*/
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int IsDoneWithTraversal() override;
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protected:
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vtkUniformGridAMRDataIterator();
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~vtkUniformGridAMRDataIterator() override;
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vtkSmartPointer<AMRIndexIterator> Iter;
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private:
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vtkUniformGridAMRDataIterator(const vtkUniformGridAMRDataIterator&) = delete;
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void operator=(const vtkUniformGridAMRDataIterator&) = delete;
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vtkSmartPointer<vtkInformation> Information;
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vtkSmartPointer<vtkUniformGridAMR> AMR;
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vtkAMRInformation* AMRInfo;
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vtkAMRDataInternals* AMRData;
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void GetCurrentIndexPair(unsigned int& level, unsigned int& id);
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};
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#endif
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