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vtkHyperTreeCursor.h
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vtkHyperTreeCursor.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkHyperTreeCursor.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 vtkHyperTreeCursor
* @brief Objects for depth-first traversal HyperTrees.
*
*
* Objects that can perform depth-first traversal of HyperTrees.
* This is an abstract class.
* Cursors are created by the HyperTree implementation.
*
* @sa
* vtkObject vtkHyperTree vtkHyperTreeGrid
*
* @par Thanks:
* This class was written by Philippe Pebay, Joachim Pouderoux, and Charles Law, Kitware 2013
* This class was modified by Guenole Harel and Jacques-Bernard Lekien 2014
* This class was revised by Philippe Pebay, 2016
* This work was supported by Commissariat a l'Energie Atomique (CEA/DIF)
*/
#ifndef vtkHyperTreeCursor_h
#define vtkHyperTreeCursor_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
class vtkHyperTree;
class VTKCOMMONDATAMODEL_EXPORT vtkHyperTreeCursor : public vtkObject
{
public:
vtkTypeMacro(vtkHyperTreeCursor,vtkObject);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Set the HyperTree to which the cursor is pointing.
*/
virtual void SetTree( vtkHyperTree* ) = 0;
/**
* Return the HyperTree to which the cursor is pointing.
*/
virtual vtkHyperTree* GetTree() = 0;
/**
* Return the index of the current vertex in the tree.
*/
virtual vtkIdType GetVertexId() = 0;
/**
* Is the cursor pointing to a leaf?
*/
virtual bool IsLeaf() = 0;
/**
* Is the cursor at tree root?
*/
virtual bool IsRoot() = 0;
/**
* Return the level of the vertex pointed by the cursor.
* \post positive_result: result>=0
*/
virtual unsigned int GetLevel() = 0;
/**
* Return the child number of the current vertex relative to its parent.
* \pre not_root: !IsRoot().
* \post valid_range: result>=0 && result<GetNumberOfChildren()
*/
virtual int GetChildIndex() = 0;
/**
* Move the cursor to the root vertex.
* \pre can be root
* \post is_root: IsRoot()
*/
virtual void ToRoot() = 0;
/**
* Move the cursor to the parent of the current vertex.
* \pre not_root: !IsRoot()
*/
virtual void ToParent() = 0;
/**
* Move the cursor to child `child' of the current vertex.
* \pre not_leaf: !IsLeaf()
* \pre valid_child: child>=0 && child<this->GetNumberOfChildren()
*/
virtual void ToChild( int child ) = 0;
/**
* Move the cursor to the same vertex pointed by `other'.
* \pre other_exists: other!=0
* \pre same_hypertree: this->SameTree(other);
* \post equal: this->IsEqual(other)
*/
virtual void ToSameVertex( vtkHyperTreeCursor* other ) = 0;
/**
* Is `this' equal to `other'?
* \pre other_exists: other!=0
* \pre same_hypertree: this->SameTree(other);
*/
virtual bool IsEqual( vtkHyperTreeCursor* other ) = 0;
/**
* Create a copy of `this'.
* \post results_exists:result!=0
* \post same_tree: result->SameTree(this)
*/
virtual vtkHyperTreeCursor* Clone() = 0;
/**
* Are `this' and `other' pointing on the same hypertree?
* \pre other_exists: other!=0
*/
virtual int SameTree( vtkHyperTreeCursor* other ) = 0;
/**
* Return the number of children for each node (non-vertex leaf) of the tree.
* \post positive_number: result>0
*/
virtual int GetNumberOfChildren() = 0;
/**
* Return the dimension of the tree.
* \post positive_result: result>0
*/
virtual int GetDimension() = 0;
protected:
// Constructor
vtkHyperTreeCursor();
~vtkHyperTreeCursor() override;
private:
vtkHyperTreeCursor(const vtkHyperTreeCursor&) = delete;
void operator=(const vtkHyperTreeCursor&) = delete;
};
#endif