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.
90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: vtkDirectedAcyclicGraph.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.
|
|
|
|
=========================================================================*/
|
|
/*-------------------------------------------------------------------------
|
|
Copyright 2008 Sandia Corporation.
|
|
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
|
|
the U.S. Government retains certain rights in this software.
|
|
-------------------------------------------------------------------------*/
|
|
/**
|
|
* @class vtkDirectedAcyclicGraph
|
|
* @brief A rooted tree data structure.
|
|
*
|
|
*
|
|
* vtkDirectedAcyclicGraph is a connected directed graph with no cycles. A tree is a type of
|
|
* directed graph, so works with all graph algorithms.
|
|
*
|
|
* vtkDirectedAcyclicGraph is a read-only data structure.
|
|
* To construct a tree, create an instance of vtkMutableDirectedGraph.
|
|
* Add vertices and edges with AddVertex() and AddEdge(). You may alternately
|
|
* start by adding a single vertex as the root then call graph->AddChild(parent)
|
|
* which adds a new vertex and connects the parent to the child.
|
|
* The tree MUST have all edges in the proper direction, from parent to child.
|
|
* After building the tree, call tree->CheckedShallowCopy(graph) to copy the
|
|
* structure into a vtkDirectedAcyclicGraph. This method will return false if the graph is
|
|
* an invalid tree.
|
|
*
|
|
* vtkDirectedAcyclicGraph provides some convenience methods for obtaining the parent and
|
|
* children of a vertex, for finding the root, and determining if a vertex
|
|
* is a leaf (a vertex with no children).
|
|
*
|
|
* @sa
|
|
* vtkDirectedGraph vtkMutableDirectedGraph vtkGraph
|
|
*/
|
|
|
|
#ifndef vtkDirectedAcyclicGraph_h
|
|
#define vtkDirectedAcyclicGraph_h
|
|
|
|
#include "vtkCommonDataModelModule.h" // For export macro
|
|
#include "vtkDirectedGraph.h"
|
|
|
|
class vtkIdTypeArray;
|
|
|
|
class VTKCOMMONDATAMODEL_EXPORT vtkDirectedAcyclicGraph : public vtkDirectedGraph
|
|
{
|
|
public:
|
|
static vtkDirectedAcyclicGraph* New();
|
|
vtkTypeMacro(vtkDirectedAcyclicGraph, vtkDirectedGraph);
|
|
void PrintSelf(ostream& os, vtkIndent indent) override;
|
|
|
|
/**
|
|
* Return what type of dataset this is.
|
|
*/
|
|
int GetDataObjectType() override { return VTK_DIRECTED_ACYCLIC_GRAPH; }
|
|
|
|
//@{
|
|
/**
|
|
* Retrieve a graph from an information vector.
|
|
*/
|
|
static vtkDirectedAcyclicGraph* GetData(vtkInformation* info);
|
|
static vtkDirectedAcyclicGraph* GetData(vtkInformationVector* v, int i = 0);
|
|
//@}
|
|
|
|
protected:
|
|
vtkDirectedAcyclicGraph();
|
|
~vtkDirectedAcyclicGraph() override;
|
|
|
|
/**
|
|
* Check the storage, and accept it if it is a valid
|
|
* tree.
|
|
*/
|
|
bool IsStructureValid(vtkGraph* g) override;
|
|
|
|
private:
|
|
vtkDirectedAcyclicGraph(const vtkDirectedAcyclicGraph&) = delete;
|
|
void operator=(const vtkDirectedAcyclicGraph&) = delete;
|
|
};
|
|
|
|
#endif
|