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vtkCircularLayoutStrategy.cxx
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vtkCircularLayoutStrategy.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCircularLayoutStrategy.cxx
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.
-------------------------------------------------------------------------*/
#include "vtkCircularLayoutStrategy.h"
#include "vtkGraph.h"
#include "vtkMath.h"
#include "vtkObjectFactory.h"
#include "vtkPoints.h"
vtkStandardNewMacro(vtkCircularLayoutStrategy);
vtkCircularLayoutStrategy::vtkCircularLayoutStrategy()
{
}
vtkCircularLayoutStrategy::~vtkCircularLayoutStrategy()
{
}
void vtkCircularLayoutStrategy::Layout()
{
vtkPoints* points = vtkPoints::New();
vtkIdType numVerts = this->Graph->GetNumberOfVertices();
points->SetNumberOfPoints(numVerts);
for (vtkIdType i = 0; i < numVerts; i++)
{
double x = cos(2.0*vtkMath::Pi()*i/numVerts);
double y = sin(2.0*vtkMath::Pi()*i/numVerts);
points->SetPoint(i, x, y, 0);
}
this->Graph->SetPoints(points);
points->Delete();
}
void vtkCircularLayoutStrategy::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}