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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 "ITKFEMExport.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 ITKFEM_EXPORT LoadPoint : public LoadElement
{
public:
/** Standard class type aliases. */
using Self = LoadPoint;
using Superclass = LoadElement;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkSimpleNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(LoadPoint);
/** CreateAnother method will clone the existing instance of this type,
* including its internal member variables. */
itk::LightObject::Pointer
CreateAnother() const override;
/** Default constructor. */
LoadPoint()
: m_Point(2, Float{})
, m_ForcePoint(2, Float{})
{
// 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.
* Modified version from the one in itk::fem::LoadLandmark. */
void
ApplyLoad(Element::ConstPointer element, Element::VectorType & Fe) override;
protected:
void
PrintSelf(std::ostream & os, Indent indent) const override;
/** Point of which the load acts in global the coordinate system. */
vnl_vector<Float> m_Point{};
/** The actual load vector. */
vnl_vector<Float> m_ForcePoint{};
};
} // end namespace fem
} // end namespace itk
#endif // itkFEMLoadPoint_h
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