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/*=========================================================================
Program: Visualization Toolkit
Module: vtkTreeMapLayoutStrategy.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.
-------------------------------------------------------------------------*/
// .NAME vtkTreeMapLayoutStrategy - abstract superclass for all tree map layout strategies
//
// .SECTION Description
// All subclasses of this class perform a tree map layout on a tree.
// This involves assigning a rectangular region to each vertex in the tree,
// and placing that information in a data array with four components per
// tuple representing (Xmin, Xmax, Ymin, Ymax).
//
// Instances of subclasses of this class may be assigned as the layout
// strategy to vtkTreeMapLayout
//
// .SECTION Thanks
// Thanks to Brian Wylie and Ken Moreland from Sandia National Laboratories
// for help developing this class.
#ifndef vtkTreeMapLayoutStrategy_h
#define vtkTreeMapLayoutStrategy_h
#include "vtkInfovisLayoutModule.h" // For export macro
#include "vtkAreaLayoutStrategy.h"
class vtkTree;
class vtkDataArray;
class VTKINFOVISLAYOUT_EXPORT vtkTreeMapLayoutStrategy : public vtkAreaLayoutStrategy
{
public:
vtkTypeMacro(vtkTreeMapLayoutStrategy, vtkAreaLayoutStrategy);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Find the vertex at a certain location, or -1 if none found.
virtual vtkIdType FindVertex(
vtkTree* tree, vtkDataArray* areaArray, float pnt[2]);
protected:
vtkTreeMapLayoutStrategy();
~vtkTreeMapLayoutStrategy();
void AddBorder( float *boxInfo);
private:
vtkTreeMapLayoutStrategy(const vtkTreeMapLayoutStrategy&); // Not implemented.
void operator=(const vtkTreeMapLayoutStrategy&); // Not implemented.
};
#endif
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