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76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCirclePackLayoutStrategy.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/*-------------------------------------------------------------------------
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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------*/
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/**
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* @class vtkCirclePackLayoutStrategy
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* @brief abstract superclass for all circle packing
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* layout strategies.
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*
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*
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* All subclasses of this class perform a circle packing layout on a vtkTree.
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* This involves assigning a circle to each vertex in the tree,
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* and placing that information in a data array with three components per
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* tuple representing (Xcenter, Ycenter, Radius).
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*
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* Instances of subclasses of this class may be assigned as the layout
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* strategy to vtkCirclePackLayout
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*
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* @par Thanks:
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* Thanks to Thomas Otahal from Sandia National Laboratories
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* for help developing this class.
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*/
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#ifndef vtkCirclePackLayoutStrategy_h
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#define vtkCirclePackLayoutStrategy_h
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#include "vtkInfovisLayoutModule.h" // For export macro
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#include "vtkObject.h"
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class vtkTree;
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class vtkDataArray;
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class VTKINFOVISLAYOUT_EXPORT vtkCirclePackLayoutStrategy : public vtkObject
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{
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public:
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vtkTypeMacro(vtkCirclePackLayoutStrategy,vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent);
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/**
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* Perform the layout of the input tree, and store the circle
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* bounds of each vertex as a tuple in a data array.
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* (Xcenter, Ycenter, Radius).
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* The sizeArray may be NULL, or may contain the desired
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* size of each vertex in the tree.
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*/
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virtual void Layout(vtkTree *inputTree, vtkDataArray *areaArray,
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vtkDataArray* sizeArray) = 0;
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protected:
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vtkCirclePackLayoutStrategy();
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~vtkCirclePackLayoutStrategy();
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private:
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vtkCirclePackLayoutStrategy(const vtkCirclePackLayoutStrategy&) VTK_DELETE_FUNCTION;
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void operator=(const vtkCirclePackLayoutStrategy&) VTK_DELETE_FUNCTION;
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};
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#endif
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