A collection of worklets used to identify which points are used by at least one cell and then remove the points that are not used by any cells. More...

#include <RemoveUnusedPoints.h>

Classes
struct	GeneratePointMask
	A worklet that creates a mask of used points (the first step in removing unused points). More...

struct	MapPointFieldDeepFunctor

struct	TransformPointIndices
	A worklet that takes an array of point indices (taken from the connectivity of a CellSetExplicit) and an array that functions as a map from the original indices to new indices, creates a new array with the new mapped indices. More...

Public Member Functions
VTKM_CONT	RemoveUnusedPoints ()=default

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage >
VTKM_CONT	RemoveUnusedPoints (const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > &inCellSet)

VTKM_CONT void	FindPointsStart ()
	Get this class ready for identifying the points used by cell sets. More...

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage >
VTKM_CONT void	FindPoints (const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > &inCellSet)
	Analyze the given cell set to find all points that are used. More...

VTKM_CONT void	FindPointsEnd ()
	Compile the information collected from calls to `FindPointsInCellSet` to ready this class for mapping cell sets and fields. More...

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage >
VTKM_CONT vtkm::cont::CellSetExplicit< ShapeStorage, VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG, OffsetsStorage >	MapCellSet (const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > &inCellSet) const
	Map cell indices. More...

template<typename InArrayHandle >
VTKM_CONT vtkm::cont::ArrayHandlePermutation< vtkm::cont::ArrayHandle< vtkm::Id >, InArrayHandle >	MapPointFieldShallow (const InArrayHandle &inArray) const
	Maps a point field from the original points to the new reduced points. More...

const vtkm::worklet::ScatterCounting &	GetPointScatter () const


template<typename InT , typename InS , typename OutT , typename OutS >
VTKM_CONT void	MapPointFieldDeep (const vtkm::cont::ArrayHandle< InT, InS > &inArray, vtkm::cont::ArrayHandle< OutT, OutS > &outArray) const
	Maps a point field from the original points to the new reduced points. More...

template<typename T , typename S >
VTKM_CONT vtkm::cont::ArrayHandle< T >	MapPointFieldDeep (const vtkm::cont::ArrayHandle< T, S > &inArray) const
	Maps a point field from the original points to the new reduced points. More...

template<typename InValueTypes , typename InStorageTypes , typename OutArrayHandle >
VTKM_CONT void	MapPointFieldDeep (const vtkm::cont::UncertainArrayHandle< InValueTypes, InStorageTypes > &inArray, OutArrayHandle &outArray) const
	Maps a point field from the original points to the new reduced points. More...

template<typename InValueTypes , typename InStorageTypes >
VTKM_CONT vtkm::cont::UncertainArrayHandle< InValueTypes, InStorageTypes >	MapPointFieldDeep (const vtkm::cont::UncertainArrayHandle< InValueTypes, InStorageTypes > &inArray) const
	Maps a point field from the original points to the new reduced points. More...

Static Public Member Functions
template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage , typename MapStorage >
static VTKM_CONT vtkm::cont::CellSetExplicit< ShapeStorage, VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG, OffsetsStorage >	MapCellSet (const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > &inCellSet, const vtkm::cont::ArrayHandle< vtkm::Id, MapStorage > &inputToOutputPointMap, vtkm::Id numberOfPoints)
	Map cell indices. More...

Private Attributes
vtkm::cont::ArrayHandle< vtkm::IdComponent >	MaskArray

std::shared_ptr< vtkm::worklet::ScatterCounting >	PointScatter
	Manages how the original point indices map to the new point indices. More...

Detailed Description

A collection of worklets used to identify which points are used by at least one cell and then remove the points that are not used by any cells.

The class containing these worklets can be used to manage running these worklets, building new cell sets, and redefine field arrays.

Constructor & Destructor Documentation

◆ RemoveUnusedPoints() [1/2]

VTKM_CONT vtkm::worklet::RemoveUnusedPoints::RemoveUnusedPoints ( )

default

◆ RemoveUnusedPoints() [2/2]

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage >

VTKM_CONT vtkm::worklet::RemoveUnusedPoints::RemoveUnusedPoints ( const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > & inCellSet )

inlineexplicit

Member Function Documentation

◆ FindPoints()

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage >

VTKM_CONT void vtkm::worklet::RemoveUnusedPoints::FindPoints ( const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > & inCellSet )

inline

Analyze the given cell set to find all points that are used.

Unused points are those that are not found in any cell sets passed to this method.

◆ FindPointsEnd()

VTKM_CONT void vtkm::worklet::RemoveUnusedPoints::FindPointsEnd ( )

inline

Compile the information collected from calls to FindPointsInCellSet to ready this class for mapping cell sets and fields.

◆ FindPointsStart()

VTKM_CONT void vtkm::worklet::RemoveUnusedPoints::FindPointsStart ( )

inline

Get this class ready for identifying the points used by cell sets.

◆ GetPointScatter()

const vtkm::worklet::ScatterCounting& vtkm::worklet::RemoveUnusedPoints::GetPointScatter ( ) const

inline

◆ MapCellSet() [1/2]

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage >

VTKM_CONT vtkm::cont::CellSetExplicit<ShapeStorage, VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG, OffsetsStorage> vtkm::worklet::RemoveUnusedPoints::MapCellSet ( const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > & inCellSet ) const

inline

Map cell indices.

Given a cell set (typically the same one passed to the constructor) returns a new cell set with cell points transformed to use the indices of the new reduced point arrays.

◆ MapCellSet() [2/2]

template<typename ShapeStorage , typename ConnectivityStorage , typename OffsetsStorage , typename MapStorage >

static VTKM_CONT vtkm::cont::CellSetExplicit<ShapeStorage, VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG, OffsetsStorage> vtkm::worklet::RemoveUnusedPoints::MapCellSet	(	const vtkm::cont::CellSetExplicit< ShapeStorage, ConnectivityStorage, OffsetsStorage > &	inCellSet,
		const vtkm::cont::ArrayHandle< vtkm::Id, MapStorage > &	inputToOutputPointMap,
		vtkm::Id	numberOfPoints
	)

inlinestatic

Map cell indices.

Given a cell set (typically the same one passed to the constructor) and an array that maps point indices from an old set of indices to a new set, returns a new cell set with cell points transformed to use the indices of the new reduced point arrays.

This helper method can be used by external items that do similar operations that remove points or otherwise rearange points in a cell set. If points were removed by calling FindPoints, then you should use the other form of MapCellSet.

◆ MapPointFieldDeep() [1/4]

template<typename InT , typename InS , typename OutT , typename OutS >

VTKM_CONT void vtkm::worklet::RemoveUnusedPoints::MapPointFieldDeep	(	const vtkm::cont::ArrayHandle< InT, InS > &	inArray,
		vtkm::cont::ArrayHandle< OutT, OutS > &	outArray
	)		const

inline

Maps a point field from the original points to the new reduced points.

Given an array handle that holds the values for a point field of the original data set, returns a new array handle containing field values rearranged to the new indices of the reduced point set.

This version of point mapping performs a deep copy into the destination array provided.

◆ MapPointFieldDeep() [2/4]

template<typename T , typename S >

VTKM_CONT vtkm::cont::ArrayHandle<T> vtkm::worklet::RemoveUnusedPoints::MapPointFieldDeep ( const vtkm::cont::ArrayHandle< T, S > & inArray ) const

inline

Maps a point field from the original points to the new reduced points.

Given an array handle that holds the values for a point field of the original data set, returns a new array handle containing field values rearranged to the new indices of the reduced point set.

This version of point mapping performs a deep copy into the destination array provided.

◆ MapPointFieldDeep() [3/4]

template<typename InValueTypes , typename InStorageTypes >

VTKM_CONT vtkm::cont::UncertainArrayHandle<InValueTypes, InStorageTypes> vtkm::worklet::RemoveUnusedPoints::MapPointFieldDeep ( const vtkm::cont::UncertainArrayHandle< InValueTypes, InStorageTypes > & inArray ) const

inline

Maps a point field from the original points to the new reduced points.

Given an array handle that holds the values for a point field of the original data set, returns a new array handle containing field values rearranged to the new indices of the reduced point set.

This version of point mapping performs a deep copy into the destination array provided.

◆ MapPointFieldDeep() [4/4]

template<typename InValueTypes , typename InStorageTypes , typename OutArrayHandle >

VTKM_CONT void vtkm::worklet::RemoveUnusedPoints::MapPointFieldDeep	(	const vtkm::cont::UncertainArrayHandle< InValueTypes, InStorageTypes > &	inArray,
		OutArrayHandle &	outArray
	)		const

inline

Maps a point field from the original points to the new reduced points.

Given an array handle that holds the values for a point field of the original data set, returns a new array handle containing field values rearranged to the new indices of the reduced point set.

This version of point mapping performs a deep copy into the destination array provided.

◆ MapPointFieldShallow()

template<typename InArrayHandle >

VTKM_CONT vtkm::cont::ArrayHandlePermutation<vtkm::cont::ArrayHandle<vtkm::Id>, InArrayHandle> vtkm::worklet::RemoveUnusedPoints::MapPointFieldShallow ( const InArrayHandle & inArray ) const

inline

Maps a point field from the original points to the new reduced points.

Given an array handle that holds the values for a point field of the original data set, returns a new array handle containing field values rearranged to the new indices of the reduced point set.

This version of point mapping performs a shallow copy by using a permutation array.

Member Data Documentation

◆ MaskArray

vtkm::cont::ArrayHandle<vtkm::IdComponent> vtkm::worklet::RemoveUnusedPoints::MaskArray

private

◆ PointScatter

std::shared_ptr<vtkm::worklet::ScatterCounting> vtkm::worklet::RemoveUnusedPoints::PointScatter

private

Manages how the original point indices map to the new point indices.

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

RemoveUnusedPoints.h

Classes

Public Member Functions

Static Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ RemoveUnusedPoints() [1/2]

◆ RemoveUnusedPoints() [2/2]

Member Function Documentation

◆ FindPoints()

◆ FindPointsEnd()

◆ FindPointsStart()

◆ GetPointScatter()

◆ MapCellSet() [1/2]

◆ MapCellSet() [2/2]

◆ MapPointFieldDeep() [1/4]

◆ MapPointFieldDeep() [2/4]

◆ MapPointFieldDeep() [3/4]

◆ MapPointFieldDeep() [4/4]

◆ MapPointFieldShallow()

Member Data Documentation

◆ MaskArray

◆ PointScatter