viskores::exec::PointLocatorSparseGrid Class Reference

Structure for locating point. More...

#include <PointLocatorSparseGrid.h>

Public Types
using	CoordPortalType = typename viskores::cont::CoordinateSystem::MultiplexerArrayType::ReadPortalType
using	IdPortalType = typename viskores::cont::ArrayHandle< viskores::Id >::ReadPortalType

Public Member Functions
	PointLocatorSparseGrid (const viskores::Vec3f &min, const viskores::Vec3f &max, const viskores::Id3 &dims, const CoordPortalType &coords, const IdPortalType &pointIds, const IdPortalType &cellLower, const IdPortalType &cellUpper)
void	FindNearestNeighbor (const viskores::Vec3f &queryPoint, viskores::Id &nearestNeighborId, viskores::FloatDefault &distance2) const
	Nearest neighbor search using a Uniform Grid. More...

Private Member Functions
void	FindInCell (const viskores::Vec3f &queryPoint, const viskores::Id3 &ijk, viskores::Id &nearestNeighborId, viskores::FloatDefault &nearestDistance2) const
void	FindInBox (const viskores::Vec3f &queryPoint, const viskores::Id3 &boxCenter, viskores::Id level, viskores::Id &nearestNeighborId, viskores::FloatDefault &nearestDistance2) const
void	FindInPlane (const viskores::Vec3f &queryPoint, const viskores::Id3 &planeCenter, const viskores::Id3 &div, const viskores::Id3 &mod, const viskores::Id3 &origin, viskores::Id numInPlane, viskores::Id &nearestNeighborId, viskores::FloatDefault &nearestDistance2) const
void	FindInXPlane (const viskores::Vec3f &queryPoint, const viskores::Id3 &planeCenter, viskores::Id level, viskores::Id &nearestNeighborId, viskores::FloatDefault &nearestDistance2) const
void	FindInYPlane (const viskores::Vec3f &queryPoint, viskores::Id3 planeCenter, viskores::Id level, viskores::Id &nearestNeighborId, viskores::FloatDefault &nearestDistance2) const
void	FindInZPlane (const viskores::Vec3f &queryPoint, viskores::Id3 planeCenter, viskores::Id level, viskores::Id &nearestNeighborId, viskores::FloatDefault &nearestDistance2) const

Private Attributes
viskores::Vec3f	Min
viskores::Id3	Dims
viskores::Vec3f	Dxdydz
CoordPortalType	Coords
IdPortalType	PointIds
IdPortalType	CellLower
IdPortalType	CellUpper

Detailed Description

Structure for locating point.

Use the FindNearestNeighbor() method to identify which cell contains a point in space.

This class is provided by viskores::cont::PointLocatorSparseGrid when passed to a worklet.

Member Typedef Documentation

CoordPortalType

using viskores::exec::PointLocatorSparseGrid::CoordPortalType = typename viskores::cont::CoordinateSystem::MultiplexerArrayType::ReadPortalType

IdPortalType

using viskores::exec::PointLocatorSparseGrid::IdPortalType = typename viskores::cont::ArrayHandle<viskores::Id>::ReadPortalType

Constructor & Destructor Documentation

PointLocatorSparseGrid()

viskores::exec::PointLocatorSparseGrid::PointLocatorSparseGrid ( const viskores::Vec3f &  min, const viskores::Vec3f &  max, const viskores::Id3 &  dims, const CoordPortalType &  coords, const IdPortalType &  pointIds, const IdPortalType &  cellLower, const IdPortalType &  cellUpper  )

inline

Member Function Documentation

FindInBox()

void viskores::exec::PointLocatorSparseGrid::FindInBox ( const viskores::Vec3f &  queryPoint, const viskores::Id3 &  boxCenter, viskores::Id  level, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  nearestDistance2  ) const

inlineprivate

FindInCell()

void viskores::exec::PointLocatorSparseGrid::FindInCell ( const viskores::Vec3f &  queryPoint, const viskores::Id3 &  ijk, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  nearestDistance2  ) const

inlineprivate

FindInPlane()

void viskores::exec::PointLocatorSparseGrid::FindInPlane ( const viskores::Vec3f &  queryPoint, const viskores::Id3 &  planeCenter, const viskores::Id3 &  div, const viskores::Id3 &  mod, const viskores::Id3 &  origin, viskores::Id  numInPlane, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  nearestDistance2  ) const

inlineprivate

FindInXPlane()

void viskores::exec::PointLocatorSparseGrid::FindInXPlane ( const viskores::Vec3f &  queryPoint, const viskores::Id3 &  planeCenter, viskores::Id  level, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  nearestDistance2  ) const

inlineprivate

FindInYPlane()

void viskores::exec::PointLocatorSparseGrid::FindInYPlane ( const viskores::Vec3f &  queryPoint, viskores::Id3  planeCenter, viskores::Id  level, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  nearestDistance2  ) const

inlineprivate

FindInZPlane()

void viskores::exec::PointLocatorSparseGrid::FindInZPlane ( const viskores::Vec3f &  queryPoint, viskores::Id3  planeCenter, viskores::Id  level, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  nearestDistance2  ) const

inlineprivate

FindNearestNeighbor()

void viskores::exec::PointLocatorSparseGrid::FindNearestNeighbor ( const viskores::Vec3f &  queryPoint, viskores::Id &  nearestNeighborId, viskores::FloatDefault &  distance2  ) const

inline

Nearest neighbor search using a Uniform Grid.

Parallel search of nearesat neighbor for each point in the queryPoints in the set of coords. Returns neareast neighbot in nearestNeighborIds and distances to nearest neighbor in distances.

Parameters

queryPoint	Point coordinates to query for nearest neighbor.
nearestNeighborId	Neareast neighbor in the training dataset for each points in the test set
distance2	Squared distance between query points and their nearest neighbors.

Member Data Documentation

CellLower

IdPortalType viskores::exec::PointLocatorSparseGrid::CellLower

private

CellUpper

IdPortalType viskores::exec::PointLocatorSparseGrid::CellUpper

private

Coords

CoordPortalType viskores::exec::PointLocatorSparseGrid::Coords

private

Dims

viskores::Id3 viskores::exec::PointLocatorSparseGrid::Dims

private

Dxdydz

viskores::Vec3f viskores::exec::PointLocatorSparseGrid::Dxdydz

private

Min

viskores::Vec3f viskores::exec::PointLocatorSparseGrid::Min

private

PointIds

IdPortalType viskores::exec::PointLocatorSparseGrid::PointIds

private

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

• exec/PointLocatorSparseGrid.h