dox/Infovis/Layout/vtkStackedTreeLayoutStrategy.h

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

  Program:   Visualization Toolkit
  Module:    vtkStackedTreeLayoutStrategy.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 __vtkStackedTreeLayoutStrategy_h
#define __vtkStackedTreeLayoutStrategy_h

#include "vtkInfovisLayoutModule.h" // For export macro
#include "vtkAreaLayoutStrategy.h"

class vtkTree;
class vtkDataArray;

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


  virtual void Layout(vtkTree *inputTree, vtkDataArray *sectorArray,
      vtkDataArray* sizeArray);


  virtual void LayoutEdgePoints(vtkTree *inputTree, vtkDataArray *sectorArray,
      vtkDataArray* sizeArray, vtkTree *edgeRoutingTree);


  vtkSetMacro(InteriorRadius, double);
  vtkGetMacro(InteriorRadius, double);


  vtkSetMacro(RingThickness, double);
  vtkGetMacro(RingThickness, double);


  vtkSetMacro(RootStartAngle, double);
  vtkGetMacro(RootStartAngle, double);


  vtkSetMacro(RootEndAngle, double);
  vtkGetMacro(RootEndAngle, double);


  vtkSetMacro(UseRectangularCoordinates, bool);
  vtkGetMacro(UseRectangularCoordinates, bool);
  vtkBooleanMacro(UseRectangularCoordinates, bool);


  vtkSetMacro(Reverse, bool);
  vtkGetMacro(Reverse, bool);
  vtkBooleanMacro(Reverse, bool);


  vtkSetMacro(InteriorLogSpacingValue, double);
  vtkGetMacro(InteriorLogSpacingValue, double);

  virtual vtkIdType FindVertex(vtkTree* tree, vtkDataArray* array, float pnt[2]);

protected:
  vtkStackedTreeLayoutStrategy();
  ~vtkStackedTreeLayoutStrategy();

  float InteriorRadius;
  float RingThickness;
  float RootStartAngle;
  float RootEndAngle;
  bool UseRectangularCoordinates;
  bool Reverse;
  double InteriorLogSpacingValue;

  void ComputeEdgeRoutingPoints(
      vtkTree* inputTree, vtkDataArray* coordsArray, vtkTree* outputTree);

  void LayoutChildren(
      vtkTree *tree, vtkDataArray *coordsArray, vtkDataArray *sizeArray,
      vtkIdType nchildren, vtkIdType parent, vtkIdType begin,
      float parentInnerRad, float parentOuterRad,
      float parentStartAng, float parentEndAng);

private:
  vtkStackedTreeLayoutStrategy(const vtkStackedTreeLayoutStrategy&);  // Not implemented.
  void operator=(const vtkStackedTreeLayoutStrategy&);  // Not implemented.
};

#endif