MeshCore::MeshSearchNeighbours Class Reference

The MeshSearchNeighbours class provides methods to get all points in the neighbourhood of a given facet. More...

#include <Tools.h>

Classes
struct	CDistRad

Public Member Functions
	MeshSearchNeighbours (const MeshKernel &rclM, float fSampleDistance=1.0f)
unsigned long	NeighboursFacetFromFacet (FacetIndex ulFacetIdx, float fDistance, std::vector< Base::Vector3f > &raclResultPoints, std::vector< FacetIndex > &raclResultFacets)
	Searches for facets from the start facet. More...
unsigned long	NeighboursFromFacet (FacetIndex ulFacetIdx, float fDistance, unsigned long ulMinPoints, std::vector< Base::Vector3f > &raclResultPoints)
	Collects all neighbour points from the facet (by index), the result are the points of the facets lying inside a sphere of radius fDistance, center center of the original facet. More...
unsigned long	NeighboursFromSampledFacets (FacetIndex ulFacetIdx, float fDistance, std::vector< Base::Vector3f > &raclResultPoints)
	Searches for facets from the start facet, sample the neighbour facets and accumulates the points. More...
void	Reinit (float fSampleDistance)
	Re-initilaizes internal structures. More...
virtual	~MeshSearchNeighbours ()

Protected Member Functions
bool	AccumulateNeighbours (const MeshFacet &rclF, FacetIndex ulFIdx)
bool	CheckDistToFacet (const MeshFacet &rclF)
bool	ExpandRadius (unsigned long ulMinPoints)
bool	InnerPoint (const Base::Vector3f &rclPt) const
void	SampleAllFacets ()
	Subsamples the mesh. More...
bool	TriangleCutsSphere (const MeshFacet &rclF) const

Detailed Description

The MeshSearchNeighbours class provides methods to get all points in the neighbourhood of a given facet.

Constructor & Destructor Documentation

MeshSearchNeighbours()

MeshSearchNeighbours::MeshSearchNeighbours	(	const MeshKernel &	rclM,
		float	fSampleDistance = 1.0f
	)

References MeshCore::MeshPoint::MARKED, MeshCore::MeshFacet::MARKED, MeshCore::MeshAlgorithm::ResetFacetFlag(), and MeshCore::MeshAlgorithm::ResetPointFlag().

~MeshSearchNeighbours()

virtual MeshCore::MeshSearchNeighbours::~MeshSearchNeighbours ( )

virtual

Member Function Documentation

AccumulateNeighbours()

bool MeshSearchNeighbours::AccumulateNeighbours ( const MeshFacet &  rclF, FacetIndex  ulFIdx  )

protected

References Base::DistanceP2(), InnerPoint(), and TriangleCutsSphere().

Referenced by NeighboursFromSampledFacets().

CheckDistToFacet()

bool MeshCore::MeshSearchNeighbours::CheckDistToFacet ( const MeshFacet &  rclF )

protected

References Base::DistanceP2(), and MeshCore::MeshPoint::MARKED.

Referenced by NeighboursFacetFromFacet(), and NeighboursFromFacet().

ExpandRadius()

bool MeshSearchNeighbours::ExpandRadius ( unsigned long  ulMinPoints )

protected

References MeshCore::MeshPoint::MARKED.

Referenced by NeighboursFromFacet().

InnerPoint()

bool MeshCore::MeshSearchNeighbours::InnerPoint ( const Base::Vector3f &  rclPt ) const

protected

References Base::DistanceP2().

Referenced by AccumulateNeighbours(), and NeighboursFromSampledFacets().

NeighboursFacetFromFacet()

unsigned long MeshSearchNeighbours::NeighboursFacetFromFacet	(	FacetIndex	ulFacetIdx,
		float	fDistance,
		std::vector< Base::Vector3f > &	raclResultPoints,
		std::vector< FacetIndex > &	raclResultFacets
	)

Searches for facets from the start facet.

References CheckDistToFacet(), Base::DistanceP2(), MeshCore::MeshFacet::IsFlag(), MeshCore::MeshPoint::MARKED, MeshCore::MeshFacet::MARKED, and MeshCore::MeshFacet::SetFlag().

NeighboursFromFacet()

unsigned long MeshSearchNeighbours::NeighboursFromFacet	(	FacetIndex	ulFacetIdx,
		float	fDistance,
		unsigned long	ulMinPoints,
		std::vector< Base::Vector3f > &	raclResultPoints
	)

Collects all neighbour points from the facet (by index), the result are the points of the facets lying inside a sphere of radius fDistance, center center of the original facet.

This method uses the MARKED flags.

References CheckDistToFacet(), ExpandRadius(), MeshCore::MeshFacet::IsFlag(), MeshCore::MeshPoint::MARKED, MeshCore::MeshFacet::MARKED, and MeshCore::MeshFacet::SetFlag().

NeighboursFromSampledFacets()

unsigned long MeshSearchNeighbours::NeighboursFromSampledFacets	(	FacetIndex	ulFacetIdx,
		float	fDistance,
		std::vector< Base::Vector3f > &	raclResultPoints
	)

Searches for facets from the start facet, sample the neighbour facets and accumulates the points.

References AccumulateNeighbours(), InnerPoint(), MeshCore::MeshFacet::IsFlag(), MeshCore::MeshFacet::MARKED, SampleAllFacets(), and MeshCore::MeshFacet::SetFlag().

Reinit()

void MeshSearchNeighbours::Reinit

(

float

fSampleDistance

)

Re-initilaizes internal structures.

References MeshCore::MeshPoint::MARKED, MeshCore::MeshFacet::MARKED, MeshCore::MeshAlgorithm::ResetFacetFlag(), and MeshCore::MeshAlgorithm::ResetPointFlag().

SampleAllFacets()

void MeshSearchNeighbours::SampleAllFacets ( )

protected

Subsamples the mesh.

References MeshCore::MeshFacetIterator::Init(), MeshCore::MeshFacetIterator::More(), MeshCore::MeshFacetIterator::Next(), and MeshCore::MeshGeomFacet::SubSample().

Referenced by NeighboursFromSampledFacets().

TriangleCutsSphere()

bool MeshCore::MeshSearchNeighbours::TriangleCutsSphere ( const MeshFacet &  rclF ) const

protected

References Base::Vector3< _Precision >::x, Base::Vector3< _Precision >::y, and Base::Vector3< _Precision >::z.

Referenced by AccumulateNeighbours().

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

• FreeCAD/src/Mod/Mesh/App/Core/Tools.h
• FreeCAD/src/Mod/Mesh/App/Core/Tools.cpp