itkFEMLoadGrav.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/

#ifndef __itkFEMLoadGrav_h
#define __itkFEMLoadGrav_h

#include "itkFEMLoadElementBase.h"
#include "vnl/vnl_vector.h"

namespace itk
{
namespace fem
{
class LoadGrav : public LoadElement
{
public:

  typedef LoadGrav                 Self;
  typedef LoadElement              Superclass;
  typedef SmartPointer<Self>       Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  itkTypeMacro(LoadGrav, LoadElement);

  virtual vnl_vector<Float> GetGravitationalForceAtPoint(vnl_vector<Float> ) = 0;

protected:
  virtual void PrintSelf(std::ostream& os, Indent indent) const
  {
    Superclass::PrintSelf(os, indent);
  }

};

class LoadGravConst : public LoadGrav
{
public:

  typedef LoadGravConst            Self;
  typedef LoadGrav                 Superclass;
  typedef SmartPointer<Self>       Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  itkSimpleNewMacro(Self);

  itkTypeMacro(LoadGravConst, LoadGrav);

  virtual::itk::LightObject::Pointer CreateAnother(void) const;

  virtual vnl_vector<Float> GetGravitationalForceAtPoint(vnl_vector<Float> )
  {
    return m_GravityForce;
  }

  void SetForce(const vnl_vector<itk::fem::Element::Float> force);

  vnl_vector<itk::fem::Element::Float> & GetForce();
  const vnl_vector<itk::fem::Element::Float> & GetForce() const;

  virtual void ApplyLoad(Element::ConstPointer element, Element::VectorType & Fe);

protected:
  virtual void PrintSelf(std::ostream& os, Indent indent) const;

  vnl_vector<Float> m_GravityForce;
};

}
}  // end namespace itk::fem

#endif // #ifndef __itkFEMLoadGrav_h