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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSPHQuarticKernel.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.
=========================================================================*/
#include "vtkSPHQuarticKernel.h"
#include "vtkAbstractPointLocator.h"
#include "vtkObjectFactory.h"
#include "vtkMath.h"
vtkStandardNewMacro(vtkSPHQuarticKernel);
//----------------------------------------------------------------------------
vtkSPHQuarticKernel::vtkSPHQuarticKernel()
{
this->CutoffFactor = 2.5;
if ( this->Dimension == 1 )
{
this->Sigma = 1.0/24.0;
}
else if ( this->Dimension == 2 )
{
this->Sigma = 96.0/(1199.0*vtkMath::Pi());
}
else //if ( this->Dimension == 3 )
{
this->Sigma = 1.0/(20.0*vtkMath::Pi());
}
}
//----------------------------------------------------------------------------
vtkSPHQuarticKernel::~vtkSPHQuarticKernel()
{
}
//----------------------------------------------------------------------------
// At this point, the spatial step, the dimension of the kernel, and the cutoff
// factor should be known.
void vtkSPHQuarticKernel::
Initialize(vtkAbstractPointLocator *loc, vtkDataSet *ds, vtkPointData *attr)
{
if ( this->Dimension == 1 )
{
this->Sigma = 1.0 / 24.0;
}
else if ( this->Dimension == 2 )
{
this->Sigma = 96.0 / (1199.0*vtkMath::Pi());
}
else //if ( this->Dimension == 3 )
{
this->Sigma = 1.0 / (20.0*vtkMath::Pi());
}
// Sigma must be set before vtkSPHKernel::Initialize is invoked
this->Superclass::Initialize(loc, ds, attr);
}
//----------------------------------------------------------------------------
void vtkSPHQuarticKernel::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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