vtkConeLayoutStrategy.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkConeLayoutStrategy.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 vtkConeLayoutStrategy_h
#define vtkConeLayoutStrategy_h
 
#include "vtkGraphLayoutStrategy.h"
#include "vtkInfovisLayoutModule.h" // For export macro
 
class vtkPoints;
 
class VTKINFOVISLAYOUT_EXPORT vtkConeLayoutStrategy : public vtkGraphLayoutStrategy
{
public:
  static vtkConeLayoutStrategy* New();
 
  vtkTypeMacro(vtkConeLayoutStrategy, vtkGraphLayoutStrategy);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetMacro(Compactness, float);
  vtkGetMacro(Compactness, float);
 
 
  vtkSetMacro(Compression, vtkTypeBool);
  vtkGetMacro(Compression, vtkTypeBool);
  vtkBooleanMacro(Compression, vtkTypeBool);
 
 
  vtkSetMacro(Spacing, float);
  vtkGetMacro(Spacing, float);
 
  void Layout() override;
 
protected:
  vtkConeLayoutStrategy();
  ~vtkConeLayoutStrategy() override;
 
  double LocalPlacement(vtkIdType root, vtkPoints* points);
 
  void GlobalPlacement(vtkIdType root, vtkPoints* points,
    double refX,   // absolute x-y coordinate of
    double refY,   // parent node; z coordinate
    double level); // derived from level.
 
  float Compactness;       // factor used in mapping layer to Z
  vtkTypeBool Compression; // force a compact layout?
  float Spacing;           // Scale vertical spacing of cones.
 
  // Values accumulated for possible statistical use
  double MinRadius;
  double MaxRadius;
  int NrCones;
  double SumOfRadii;
 
private:
  vtkConeLayoutStrategy(const vtkConeLayoutStrategy&) = delete;
  void operator=(const vtkConeLayoutStrategy&) = delete;
};
 
#endif