• Main Page
  • Related Pages
  • Namespaces
  • Classes
  • Files
  • File List
  • File Members

dox/Infovis/vtkFast2DLayoutStrategy.h

Go to the documentation of this file.
00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkFast2DLayoutStrategy.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00015 /*-------------------------------------------------------------------------
00016   Copyright 2008 Sandia Corporation.
00017   Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
00018   the U.S. Government retains certain rights in this software.
00019 -------------------------------------------------------------------------*/
00038 #ifndef __vtkFast2DLayoutStrategy_h
00039 #define __vtkFast2DLayoutStrategy_h
00040 
00041 #include "vtkGraphLayoutStrategy.h"
00042 
00043 #include "vtkSmartPointer.h"    // Required for smart pointer internal ivars.
00044 
00045 class vtkFastSplatter;
00046 class vtkFloatArray;
00047 class vtkGraphToPolyData;
00048 class vtkImageData;
00049 
00050 class VTK_INFOVIS_EXPORT vtkFast2DLayoutStrategy : public vtkGraphLayoutStrategy 
00051 {
00052 public:
00053   static vtkFast2DLayoutStrategy *New();
00054 
00055   vtkTypeRevisionMacro(vtkFast2DLayoutStrategy, vtkGraphLayoutStrategy);
00056   void PrintSelf(ostream& os, vtkIndent indent);
00057 
00059 
00062   vtkSetClampMacro(RandomSeed, int, 0, VTK_LARGE_INTEGER);
00063   vtkGetMacro(RandomSeed, int);
00065 
00067 
00072   vtkSetClampMacro(MaxNumberOfIterations, int, 0, VTK_LARGE_INTEGER);
00073   vtkGetMacro(MaxNumberOfIterations, int);
00075   
00077 
00081   vtkSetClampMacro(IterationsPerLayout, int, 0, VTK_LARGE_INTEGER);
00082   vtkGetMacro(IterationsPerLayout, int);
00084 
00086 
00089   vtkSetClampMacro(InitialTemperature, float, 0.0, VTK_FLOAT_MAX);
00090   vtkGetMacro(InitialTemperature, float);
00092   
00094 
00098   vtkSetClampMacro(CoolDownRate, double, 0.01, VTK_DOUBLE_MAX);
00099   vtkGetMacro(CoolDownRate, double);
00101   
00103 
00105   vtkSetMacro(RestDistance, float);
00106   vtkGetMacro(RestDistance, float);
00108   
00111   virtual void Initialize();
00112   
00117   virtual void Layout();
00118   
00121   virtual int IsLayoutComplete() {return this->LayoutComplete;}
00122 
00123 protected:
00124   vtkFast2DLayoutStrategy();
00125   ~vtkFast2DLayoutStrategy();
00126 
00127   int    MaxNumberOfIterations;  //Maximum number of iterations.
00128   float  InitialTemperature;
00129   float  CoolDownRate;  //Cool-down rate.  Note:  Higher # = Slower rate.
00130 
00131 private:
00132 
00133   //BTX
00134 
00135   // An edge consists of two vertices joined together.
00136   // This struct acts as a "pointer" to those two vertices.
00137   typedef struct 
00138   {
00139     vtkIdType from;
00140     vtkIdType to;
00141     float weight;
00142   } vtkLayoutEdge;
00143   
00144   // This class 'has a' vtkFastSplatter for the density grid
00145   vtkSmartPointer<vtkGraphToPolyData>     GraphToPoly;
00146   vtkSmartPointer<vtkFastSplatter>        DensityGrid;
00147   vtkSmartPointer<vtkImageData>           SplatImage;
00148   vtkSmartPointer<vtkFloatArray>          RepulsionArray;
00149   vtkSmartPointer<vtkFloatArray>          AttractionArray;
00150   //ETX
00151   
00152   vtkLayoutEdge *EdgeArray;
00153 
00154   int RandomSeed;
00155   int IterationsPerLayout;
00156   int TotalIterations;
00157   int LayoutComplete;
00158   float Temp;
00159   float RestDistance;
00160   
00161   // Private helper methods
00162   void GenerateCircularSplat(vtkImageData *splat, int x, int y);
00163   void GenerateGaussianSplat(vtkImageData *splat, int x, int y);
00164   void ResolveCoincidentVertices();
00165 
00166   vtkFast2DLayoutStrategy(const vtkFast2DLayoutStrategy&);  // Not implemented.
00167   void operator=(const vtkFast2DLayoutStrategy&);  // Not implemented.
00168 };
00169 
00170 #endif
00171 

Generated by  doxygen 1.7.1