/usr/include/vtk-6.3/vtkDijkstraGraphGeodesicPath.h is in libvtk6-dev 6.3.0+dfsg1-5.
This file is owned by root:root, with mode 0o644.
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Program: Visualization Toolkit
Module: vtkDijkstraGraphGeodesicPath.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.
=========================================================================*/
// .NAME vtkDijkstraGraphGeodesicPath - Dijkstra algorithm to compute the graph geodesic.
// .SECTION Description
// Takes as input a polygonal mesh and performs a single source shortest
// path calculation. Dijkstra's algorithm is used. The implementation is
// similar to the one described in Introduction to Algorithms (Second Edition)
// by Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and
// Cliff Stein, published by MIT Press and McGraw-Hill. Some minor
// enhancement are added though. All vertices are not pushed on the heap
// at start, instead a front set is maintained. The heap is implemented as
// a binary heap. The output of the filter is a set of lines describing
// the shortest path from StartVertex to EndVertex.
//
// .SECTION Caveats
// The input polydata must have only triangle cells.
//
// .SECTION Thanks
// The class was contributed by Rasmus Paulsen.
// www.imm.dtu.dk/~rrp/VTK . Also thanks to Alexandre Gouaillard and Shoaib
// Ghias for bug fixes and enhancements.
#ifndef vtkDijkstraGraphGeodesicPath_h
#define vtkDijkstraGraphGeodesicPath_h
#include "vtkFiltersModelingModule.h" // For export macro
#include "vtkGraphGeodesicPath.h"
class vtkDijkstraGraphInternals;
class vtkIdList;
class VTKFILTERSMODELING_EXPORT vtkDijkstraGraphGeodesicPath :
public vtkGraphGeodesicPath
{
public:
// Description:
// Instantiate the class
static vtkDijkstraGraphGeodesicPath *New();
// Description:
// Standard methids for printing and determining type information.
vtkTypeMacro(vtkDijkstraGraphGeodesicPath,vtkGraphGeodesicPath);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// The vertex ids (of the input polydata) on the shortest path
vtkGetObjectMacro(IdList, vtkIdList);
// Description:
// Stop when the end vertex is reached
// or calculate shortest path to all vertices
vtkSetMacro(StopWhenEndReached, int);
vtkGetMacro(StopWhenEndReached, int);
vtkBooleanMacro(StopWhenEndReached, int);
// Description:
// Use scalar values in the edge weight (experimental)
vtkSetMacro(UseScalarWeights, int);
vtkGetMacro(UseScalarWeights, int);
vtkBooleanMacro(UseScalarWeights, int);
// Description:
// Use the input point to repel the path by assigning high costs.
vtkSetMacro(RepelPathFromVertices, int);
vtkGetMacro(RepelPathFromVertices, int);
vtkBooleanMacro(RepelPathFromVertices, int);
// Description:
// Specify vtkPoints to use to repel the path from.
virtual void SetRepelVertices(vtkPoints*);
vtkGetObjectMacro(RepelVertices, vtkPoints);
//Description:
//Fill the array with the cumulative weights.
virtual void GetCumulativeWeights(vtkDoubleArray *weights);
protected:
vtkDijkstraGraphGeodesicPath();
~vtkDijkstraGraphGeodesicPath();
virtual int RequestData(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
// Build a graph description of the input.
virtual void BuildAdjacency( vtkDataSet *inData );
vtkTimeStamp AdjacencyBuildTime;
// The fixed cost going from vertex u to v.
virtual double CalculateStaticEdgeCost( vtkDataSet *inData, vtkIdType u, vtkIdType v);
// The cost going from vertex u to v that may depend on one or more vertices
//that precede u.
virtual double CalculateDynamicEdgeCost( vtkDataSet *, vtkIdType , vtkIdType )
{ return 0.0; }
void Initialize( vtkDataSet *inData );
void Reset();
// Calculate shortest path from vertex startv to vertex endv.
virtual void ShortestPath( vtkDataSet *inData, int startv, int endv );
// Relax edge u,v with weight w.
void Relax(const int& u, const int& v, const double& w);
// Backtrace the shortest path
void TraceShortestPath( vtkDataSet* inData, vtkPolyData* outPoly,
vtkIdType startv, vtkIdType endv);
// The number of vertices.
int NumberOfVertices;
// The vertex ids on the shortest path.
vtkIdList *IdList;
//Internalized STL containers.
vtkDijkstraGraphInternals *Internals;
int StopWhenEndReached;
int UseScalarWeights;
int RepelPathFromVertices;
vtkPoints* RepelVertices;
private:
vtkDijkstraGraphGeodesicPath(const vtkDijkstraGraphGeodesicPath&); // Not implemented.
void operator=(const vtkDijkstraGraphGeodesicPath&); // Not implemented.
};
#endif
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