PointListAdaptor< PointObject > Class Template Reference

#include <PointListAdaptor.h>

Public Types
using	Iterator = typename std::vector< PointObject >::const_iterator
using	coord_t = Real
	libMesh Point coordinate type More...

Public Member Functions
	PointListAdaptor (Iterator begin, Iterator end)
size_t	kdtree_get_point_count () const
	Must return the number of data points. More...
const Point &	getPoint (const PointObject &item) const
	get a Point reference from the PointData object at index idx in the list More...
coord_t	kdtree_distance (const coord_t *p1, const size_t idx_p2, size_t) const
	Returns the distance between the vector "p1[0:size-1]" and the data point with index "idx_p2" stored in the class. More...
coord_t	kdtree_get_pt (const size_t idx, int dim) const
	Returns the dim'th component of the idx'th point in the class: Since this is inlined and the "dim" argument is typically an immediate value, the "if's" are actually solved at compile time. More...
template<class BBOX >
bool	kdtree_get_bbox (BBOX &) const
	Optional bounding-box computation. More...
template<>
const Point &	getPoint (const MooseMesh::PeriodicNodeInfo &item) const

Private Attributes
const Iterator	_begin
	begin iterator of the underlying point type vector More...
const Iterator	_end
	end iterator of the underlying point type vector More...
std::size_t	_size
	number of elements pointed to More...

Detailed Description

template<typename PointObject>
class PointListAdaptor< PointObject >

Definition at line 20 of file PointListAdaptor.h.

Member Typedef Documentation

coord_t

template<typename PointObject>

using PointListAdaptor< PointObject >::coord_t = Real

libMesh Point coordinate type

Definition at line 44 of file PointListAdaptor.h.

Iterator

template<typename PointObject>

using PointListAdaptor< PointObject >::Iterator = typename std::vector<PointObject>::const_iterator

Definition at line 23 of file PointListAdaptor.h.

Constructor & Destructor Documentation

PointListAdaptor()

template<typename PointObject>

PointListAdaptor< PointObject >::PointListAdaptor ( Iterator  begin, Iterator  end  )

inline

Definition at line 25 of file PointListAdaptor.h.

    : _begin(begin), _end(end), _size(std::distance(begin, end))
  {
  }

Member Function Documentation

getPoint() [1/2]

template<typename PointObject>

const Point& PointListAdaptor< PointObject >::getPoint

(

const PointObject &

item

)

const

get a Point reference from the PointData object at index idx in the list

Referenced by PointListAdaptor< Point >::kdtree_distance(), and PointListAdaptor< Point >::kdtree_get_pt().

getPoint() [2/2]

template<>

const Point & PointListAdaptor< MooseMesh::PeriodicNodeInfo >::getPoint ( const MooseMesh::PeriodicNodeInfo &  item ) const

inline

Definition at line 1166 of file MooseMesh.C.

{
  return *(item.first);
}

kdtree_distance()

template<typename PointObject>

coord_t PointListAdaptor< PointObject >::kdtree_distance ( const coord_t *  p1, const size_t  idx_p2, size_t    ) const

inline

Returns the distance between the vector "p1[0:size-1]" and the data point with index "idx_p2" stored in the class.

Definition at line 60 of file PointListAdaptor.h.

  {
    mooseAssert(idx_p2 < _size,
                "The point index should be less than"
                "total number of points used to build"
                "the KDTree.");

    auto it = _begin;
    std::advance(it, idx_p2);
    const Point & p2 = getPoint(*it);

    coord_t dist = 0.0;

    for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
      dist += Utility::pow<2>(p1[i] - p2(i));

    return dist;
  }

kdtree_get_bbox()

template<typename PointObject>

template<class BBOX >

bool PointListAdaptor< PointObject >::kdtree_get_bbox ( BBOX &  ) const

inline

Optional bounding-box computation.

This function is called by the nanoflann library. If the return value is false, the standard bbox computation loop in the nanoflann library is activated.

Definition at line 107 of file PointListAdaptor.h.

  {
    return false;
  }

kdtree_get_point_count()

template<typename PointObject>

size_t PointListAdaptor< PointObject >::kdtree_get_point_count ( ) const

inline

Must return the number of data points.

Definition at line 49 of file PointListAdaptor.h.

{ return _size; }

kdtree_get_pt()

template<typename PointObject>

coord_t PointListAdaptor< PointObject >::kdtree_get_pt ( const size_t  idx, int  dim  ) const

inline

Returns the dim'th component of the idx'th point in the class: Since this is inlined and the "dim" argument is typically an immediate value, the "if's" are actually solved at compile time.

Definition at line 85 of file PointListAdaptor.h.

  {
    mooseAssert(dim < (int)LIBMESH_DIM,
                "The required component number should be less than the LIBMESH_DIM.");
    mooseAssert(idx < _size,
                "The index of the point should be less"
                "than total number of points used to"
                "construct the KDTree.");

    auto it = _begin;
    std::advance(it, idx);
    const Point & p = getPoint(*it);

    return p(dim);
  }

Member Data Documentation

_begin

template<typename PointObject>

const Iterator PointListAdaptor< PointObject >::_begin

private

begin iterator of the underlying point type vector

Definition at line 32 of file PointListAdaptor.h.

Referenced by PointListAdaptor< Point >::kdtree_distance(), and PointListAdaptor< Point >::kdtree_get_pt().

_end

template<typename PointObject>

const Iterator PointListAdaptor< PointObject >::_end

private

end iterator of the underlying point type vector

Definition at line 35 of file PointListAdaptor.h.

_size

template<typename PointObject>

std::size_t PointListAdaptor< PointObject >::_size

private

number of elements pointed to

Definition at line 38 of file PointListAdaptor.h.

Referenced by PointListAdaptor< Point >::kdtree_distance(), PointListAdaptor< Point >::kdtree_get_point_count(), and PointListAdaptor< Point >::kdtree_get_pt().

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The documentation for this class was generated from the following file:

• include/utils/PointListAdaptor.h