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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 itkVertexCell_h
#define itkVertexCell_h
#include "itkCellInterface.h"
#include "itkNumericTraits.h"
#include "itkMakeFilled.h"
#include <array>
namespace itk
{
/** \class VertexCell
* \brief Represents a single vertex for a Mesh.
*
* \tparam TPixelType The type associated with a point, cell, or boundary
* for use in storing its data.
*
* \tparam TCellTraits Type information of mesh containing cell.
*
* \ingroup MeshObjects
* \ingroup ITKCommon
*/
template <typename TCellInterface>
class ITK_TEMPLATE_EXPORT VertexCell : public TCellInterface
{
public:
ITK_DISALLOW_COPY_AND_MOVE(VertexCell);
/** Standard class type aliases. */
itkCellCommonTypedefs(VertexCell);
itkCellInheritedTypedefs(TCellInterface);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(VertexCell);
/** Vertex-specific topology numbers. */
static constexpr unsigned int NumberOfPoints = 1;
static constexpr unsigned int CellDimension = 0;
// Standard CellInterface
/** Implement the standard CellInterface. */
CellGeometryEnum
GetType() const override
{
return CellGeometryEnum::VERTEX_CELL;
}
void
MakeCopy(CellAutoPointer &) const override;
/** Get the topological dimension of this cell. */
unsigned int
GetDimension() const override;
/** Get the number of points required to define the cell. */
unsigned int
GetNumberOfPoints() const override;
/** A vertex has no boundary entities of any dimension. */
CellFeatureCount
GetNumberOfBoundaryFeatures(int dimension) const override;
/** A vertex has no boundary entities. Just return null. */
bool
GetBoundaryFeature(int dimension, CellFeatureIdentifier, CellAutoPointer &) override;
/** Set the point id list used by the cell. It is assumed that the given
* iterator can be incremented and safely de-referenced enough times to
* get all the point ids needed by the cell. */
void
SetPointIds(PointIdConstIterator first) override;
/** Set the point id list used by the cell. It is assumed that the range
* of iterators [first, last) contains the correct number of points needed to
* define the cell. The position *last is NOT referenced, so it can safely
* be one beyond the end of an array or other container. */
void
SetPointIds(PointIdConstIterator first, PointIdConstIterator last) override;
// Vertex-specific interface
/** Set an individual point identifier in the cell. */
void
SetPointId(int localId, PointIdentifier) override;
/** Get a begin iterator to the list of point identifiers used by the cell. */
PointIdIterator
PointIdsBegin() override;
/** Get a const begin iterator to the list of point identifiers used by the cell. */
PointIdConstIterator
PointIdsBegin() const override;
/** Get an end iterator to the list of point identifiers used by the cell. */
PointIdIterator
PointIdsEnd() override;
/** Get a const end iterator to the list of point identifiers used by the cell. */
PointIdConstIterator
PointIdsEnd() const override;
/** Set the identifier of the point defining the vertex. */
virtual void SetPointId(PointIdentifier);
/** Get the identifier of the point defining the vertex. */
virtual PointIdentifier
GetPointId();
/** Cell visitor interface */
itkCellVisitMacro(CellGeometryEnum::VERTEX_CELL);
/** Evaluate the position of a given point */
bool
EvaluatePosition(CoordRepType *,
PointsContainer *,
CoordRepType *,
CoordRepType[],
double *,
InterpolationWeightType *) override;
public:
VertexCell() = default;
~VertexCell() override = default;
protected:
/**
* Store the number of points needed for a vertex.
*/
std::array<PointIdentifier, NumberOfPoints> m_PointIds{ MakeFilled<std::array<PointIdentifier, NumberOfPoints>>(
NumericTraits<PointIdentifier>::max()) };
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkVertexCell.hxx"
#endif
#endif
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