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/usr/include/ITK-4.5/itkFEMLoadPoint.h is in libinsighttoolkit4-dev 4.5.0-3.

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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 __itkFEMLoadPoint_h
#define __itkFEMLoadPoint_h

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

namespace itk
{
namespace fem
{
/**
 * \class LoadPoint
 * \brief This load is applied on a point in an element.
 *
 * \ingroup ITKFEM
 */
class LoadPoint : public LoadElement
{
public:
  /** Standard class typedefs. */
  typedef LoadPoint                Self;
  typedef LoadElement              Superclass;
  typedef SmartPointer<Self>       Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  /** Method for creation through the object factory. */
  itkSimpleNewMacro(Self);

  /** Run-time type information (and related methods). */
  itkTypeMacro(LoadPoint, LoadElement);

  /** CreateAnother method will clone the existing instance of this type,
   * including its internal member variables. */
  virtual::itk::LightObject::Pointer CreateAnother(void) const;

  /**
   * Default constructor
   */
  LoadPoint() :
    m_Point(2), m_ForcePoint(2)
  {
    /** Default Initialization of 2D point and force vector */
  }

/**
   * Set the point where the load acts
   */
  void SetPoint(const vnl_vector<Float> p);

  /**
   * Get the point where the load acts
   */
  vnl_vector<Float> GetPoint();

/**
   * Set the force vector
   */
  void SetForce(const vnl_vector<Float> f);

  /**
   * Get the force vector
   */
  vnl_vector<Float> GetForce();

  /** Apply the load to the specified element */
  virtual void ApplyLoad(Element::ConstPointer element, Element::VectorType & Fe);

protected:

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

  /**
  * Point of which the load acts in global coord. sys.
  */
  vnl_vector<Float> m_Point;

  /**
   * the actual load vector
   */
  vnl_vector<Float> m_ForcePoint;

};

}
}  // end namespace itk::fem

#endif // #ifndef __itkFEMLoadPoint_h