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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkSimple3DCirclesStrategy.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.

=========================================================================*/
#ifndef vtkSimple3DCirclesStrategyH
#define vtkSimple3DCirclesStrategyH 1

#include "vtkInfovisLayoutModule.h" // For export macro
#include "vtkGraphLayoutStrategy.h"
#include "vtkVariant.h" // For variant API

class vtkAbstractArray;
class vtkDirectedGraph;
class vtkIdTypeArray;
class vtkIntArray;
class vtkSimple3DCirclesStrategyInternal;

class VTKINFOVISLAYOUT_EXPORT vtkSimple3DCirclesStrategy : public vtkGraphLayoutStrategy
  {
public:
  static vtkSimple3DCirclesStrategy * New();
  vtkTypeMacro(vtkSimple3DCirclesStrategy,vtkGraphLayoutStrategy);
  void PrintSelf( ostream& os, vtkIndent indent );

//BTX
  enum
    {
    FixedRadiusMethod = 0, FixedDistanceMethod = 1
    };
//ETX

  vtkSetMacro(Method,int);
  vtkGetMacro(Method,int);


  vtkSetMacro(Radius,double);
  vtkGetMacro(Radius,double);


  vtkSetMacro(Height,double);
  vtkGetMacro(Height,double);


  vtkSetVector3Macro(Origin,double);
  vtkGetVector3Macro(Origin,double);


  virtual void SetDirection( double dx, double dy, double dz );
  virtual void SetDirection( double d[3] );
  vtkGetVector3Macro(Direction,double);


  virtual void SetMarkedStartVertices( vtkAbstractArray * _arg );
  vtkGetObjectMacro(MarkedStartVertices,vtkAbstractArray);


  virtual void SetMarkedValue( vtkVariant _arg );
  virtual vtkVariant GetMarkedValue( void );


  vtkSetMacro(ForceToUseUniversalStartPointsFinder,int);
  vtkGetMacro(ForceToUseUniversalStartPointsFinder,int);
  vtkBooleanMacro(ForceToUseUniversalStartPointsFinder,int);


  vtkSetMacro(AutoHeight,int);
  vtkGetMacro(AutoHeight,int);
  vtkBooleanMacro(AutoHeight,int);


  vtkSetMacro(MinimumRadian,double);
  vtkGetMacro(MinimumRadian,double);


  virtual void SetMinimumDegree( double degree );
  virtual double GetMinimumDegree( void );


  virtual void SetHierarchicalLayers( vtkIntArray * _arg );
  vtkGetObjectMacro(HierarchicalLayers,vtkIntArray);


  virtual void SetHierarchicalOrder( vtkIdTypeArray * _arg );
  vtkGetObjectMacro(HierarchicalOrder,vtkIdTypeArray);

  virtual void Layout( void );

  virtual void SetGraph( vtkGraph * graph );
protected:
//BTX
  vtkSimple3DCirclesStrategy( void );
  virtual ~vtkSimple3DCirclesStrategy( void );

  inline void Transform( double Local[], double Global[] );

  double Radius;
  double Height;
  double Origin[3];
  double Direction[3];
  int Method;
  vtkAbstractArray * MarkedStartVertices;
  vtkVariant MarkedValue;
  int ForceToUseUniversalStartPointsFinder;
  int AutoHeight;
  double MinimumRadian;

  vtkIntArray * HierarchicalLayers;
  vtkIdTypeArray * HierarchicalOrder;
//ETX
private:
//BTX
  virtual int UniversalStartPoints( vtkDirectedGraph * input, vtkSimple3DCirclesStrategyInternal * target, vtkSimple3DCirclesStrategyInternal *StandAlones, vtkIntArray * layers );
  virtual int BuildLayers( vtkDirectedGraph * input, vtkSimple3DCirclesStrategyInternal * source, vtkIntArray * layers );
  virtual void BuildPointOrder( vtkDirectedGraph * input, vtkSimple3DCirclesStrategyInternal *source, vtkSimple3DCirclesStrategyInternal *StandAlones, vtkIntArray * layers, vtkIdTypeArray * order );

  double T[3][3];
//ETX

  vtkSimple3DCirclesStrategy(const vtkSimple3DCirclesStrategy&);  // Not implemented.
  void operator=(const vtkSimple3DCirclesStrategy&);  // Not implemented.
  };

#endif