vtkCirclePackLayout.h

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/*=========================================================================
 
 Program:   Visualization Toolkit
 Module:    vtkCirclePackLayout.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.
 -------------------------------------------------------------------------*/
#ifndef vtkCirclePackLayout_h
#define vtkCirclePackLayout_h
 
#include "vtkInfovisLayoutModule.h" // For export macro
#include "vtkTreeAlgorithm.h"
 
class vtkCirclePackLayoutStrategy;
class vtkDoubleArray;
class vtkDataArray;
class vtkTree;
 
class VTKINFOVISLAYOUT_EXPORT vtkCirclePackLayout : public vtkTreeAlgorithm
{
public:
  static vtkCirclePackLayout* New();
 
  vtkTypeMacro(vtkCirclePackLayout, vtkTreeAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkGetStringMacro(CirclesFieldName);
  vtkSetStringMacro(CirclesFieldName);
 
  virtual void SetSizeArrayName(const char* name)
  {
    this->SetInputArrayToProcess(0, 0, 0, vtkDataObject::FIELD_ASSOCIATION_VERTICES, name);
  }
 
 
  vtkGetObjectMacro(LayoutStrategy, vtkCirclePackLayoutStrategy);
  void SetLayoutStrategy(vtkCirclePackLayoutStrategy* strategy);
 
  vtkIdType FindVertex(double pnt[2], double* cinfo = nullptr);
 
  void GetBoundingCircle(vtkIdType id, double* cinfo);
 
  vtkMTimeType GetMTime() override;
 
protected:
  vtkCirclePackLayout();
  ~vtkCirclePackLayout() override;
 
  char* CirclesFieldName;
  vtkCirclePackLayoutStrategy* LayoutStrategy;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
private:
  vtkCirclePackLayout(const vtkCirclePackLayout&) = delete;
  void operator=(const vtkCirclePackLayout&) = delete;
  void prepareSizeArray(vtkDoubleArray* mySizeArray, vtkTree* tree);
};
 
#endif