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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkRandomLayoutStrategy.h,v $
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 (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
// .NAME vtkRandomLayoutStrategy - randomly places vertices in 2 or 3 dimensions
//
// .SECTION Description
// Assigns points to the vertices of a graph randomly within a bounded range.
//
// .SECION Thanks
// Thanks to Brian Wylie from Sandia National Laboratories for adding incremental
// layout capabilities.
#ifndef __vtkRandomLayoutStrategy_h
#define __vtkRandomLayoutStrategy_h
#include "vtkGraphLayoutStrategy.h"
class VTK_INFOVIS_EXPORT vtkRandomLayoutStrategy : public vtkGraphLayoutStrategy
{
public:
static vtkRandomLayoutStrategy *New();
vtkTypeRevisionMacro(vtkRandomLayoutStrategy, vtkGraphLayoutStrategy);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Seed the random number generator used to compute point positions.
// This has a significant effect on their final positions when
// the layout is complete.
vtkSetClampMacro(RandomSeed, int, 0, VTK_LARGE_INTEGER);
vtkGetMacro(RandomSeed, int);
// Description:
// Set / get the region in space in which to place the final graph.
// The GraphBounds only affects the results if AutomaticBoundsComputation
// is off.
vtkSetVector6Macro(GraphBounds,double);
vtkGetVectorMacro(GraphBounds,double,6);
// Description:
// Turn on/off automatic graph bounds calculation. If this
// boolean is off, then the manually specified GraphBounds is used.
// If on, then the input's bounds us used as the graph bounds.
vtkSetMacro(AutomaticBoundsComputation, int);
vtkGetMacro(AutomaticBoundsComputation, int);
vtkBooleanMacro(AutomaticBoundsComputation, int);
// Description:
// Turn on/off layout of graph in three dimensions. If off, graph
// layout occurs in two dimensions. By default, three dimensional
// layout is on.
vtkSetMacro(ThreeDimensionalLayout, int);
vtkGetMacro(ThreeDimensionalLayout, int);
vtkBooleanMacro(ThreeDimensionalLayout, int);
// Description:
// Set the graph to layout.
void SetGraph(vtkAbstractGraph *graph);
// Description:
// Perform the random layout.
void Layout();
protected:
vtkRandomLayoutStrategy();
~vtkRandomLayoutStrategy();
int RandomSeed;
double GraphBounds[6];
int AutomaticBoundsComputation;
int ThreeDimensionalLayout; //Boolean for a third dimension.
private:
vtkRandomLayoutStrategy(const vtkRandomLayoutStrategy&); // Not implemented.
void operator=(const vtkRandomLayoutStrategy&); // Not implemented.
};
#endif
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