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 (unsigned long ulFacetIdx, float fDistance, std::vector< Base::Vector3f > &raclResultPoints, std::vector< unsigned long > &raclResultFacets)
	Searches for facets from the start facet.
unsigned long	NeighboursFromFacet (unsigned long 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.
unsigned long	NeighboursFromSampledFacets (unsigned long ulFacetIdx, float fDistance, std::vector< Base::Vector3f > &raclResultPoints)
	Searches for facets from the start facet, sample the neighbour facets and accumulates the points.
void	Reinit (float fSampleDistance)
	Re-initilaizes internal structures.
virtual	~MeshSearchNeighbours ()
Protected Member Functions
bool	AccumulateNeighbours (const MeshFacet &rclF, unsigned long ulFIdx)
bool	CheckDistToFacet (const MeshFacet &rclF)
bool	ExpandRadius (unsigned long ulMinPoints)
bool	InnerPoint (const Base::Vector3f &rclPt) const
void	SampleAllFacets (void)
	Subsamples the mesh.
bool	TriangleCutsSphere (const MeshFacet &rclF) const
Protected Attributes
std::set< unsigned long >	_aclOuter
std::vector< Base::Vector3f >	_aclPointsResult
std::set< unsigned long >	_aclResult
std::vector< std::vector < Base::Vector3f > >	_aclSampledFacets
Wm4::Sphere3< float >	_akSphere
bool	_bTooFewPoints
Base::Vector3f	_clCenter
MeshRefPointToFacets	_clPt2Fa
float	_fMaxDistanceP2
float	_fSampleDistance
const MeshFacetArray &	_rclFAry
const MeshKernel &	_rclMesh
const MeshPointArray &	_rclPAry

Detailed Description

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

Definition at line 43 of file Mod/Mesh/App/Core/Tools.h.

Constructor & Destructor Documentation

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

Definition at line 36 of file Mod/Mesh/App/Core/Tools.cpp.

References _rclMesh, MeshCore::MeshPoint::MARKED, and MeshCore::MeshFacet::MARKED.

virtual MeshCore::MeshSearchNeighbours::~MeshSearchNeighbours ( ) [inline, virtual]

Definition at line 47 of file Mod/Mesh/App/Core/Tools.h.

Member Function Documentation

bool MeshSearchNeighbours::AccumulateNeighbours	(	const MeshFacet &	rclF,
		unsigned long	ulFIdx
	)			`[protected]`

Definition at line 212 of file Mod/Mesh/App/Core/Tools.cpp.

References _aclOuter, _aclPointsResult, _aclResult, _aclSampledFacets, MeshCore::MeshFacet::_aulPoints, _clCenter, _fMaxDistanceP2, _rclPAry, Base::DistanceP2(), InnerPoint(), k, and TriangleCutsSphere().

Referenced by NeighboursFromSampledFacets().

bool MeshCore::MeshSearchNeighbours::CheckDistToFacet ( const MeshFacet & rclF ) [inline, protected]

Definition at line 97 of file Mod/Mesh/App/Core/Tools.h.

References _aclOuter, _aclResult, MeshCore::MeshFacet::_aulPoints, _clCenter, _fMaxDistanceP2, _rclPAry, Base::DistanceP2(), MeshCore::MeshPoint::MARKED, and MeshCore::MeshPointArray::SetFlag().

Referenced by NeighboursFacetFromFacet(), and NeighboursFromFacet().

bool MeshSearchNeighbours::ExpandRadius ( unsigned long ulMinPoints ) [protected]

Definition at line 248 of file Mod/Mesh/App/Core/Tools.cpp.

References _aclOuter, _aclResult, _fMaxDistanceP2, _rclPAry, and MeshCore::MeshPoint::MARKED.

Referenced by NeighboursFromFacet().

bool MeshCore::MeshSearchNeighbours::InnerPoint ( const Base::Vector3f & rclPt ) const [inline, protected]

Definition at line 121 of file Mod/Mesh/App/Core/Tools.h.

References _clCenter, _fMaxDistanceP2, and Base::DistanceP2().

Referenced by AccumulateNeighbours(), and NeighboursFromSampledFacets().

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

Searches for facets from the start facet.

Definition at line 263 of file Mod/Mesh/App/Core/Tools.cpp.

References _aclOuter, _aclResult, MeshCore::MeshFacet::_aulPoints, _clCenter, _clPt2Fa, _fMaxDistanceP2, _rclFAry, _rclMesh, _rclPAry, CheckDistToFacet(), Base::DistanceP2(), MeshCore::MeshKernel::GetFacet(), MeshCore::MeshGeomFacet::GetGravityPoint(), MeshCore::MeshFacet::IsFlag(), MeshCore::MeshPoint::MARKED, MeshCore::MeshFacet::MARKED, MeshCore::MeshFacet::SetFlag(), and MeshCore::MeshFacetArray::SetFlag().

unsigned long MeshSearchNeighbours::NeighboursFromFacet	(	unsigned long	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.

Definition at line 54 of file Mod/Mesh/App/Core/Tools.cpp.

References _aclOuter, _aclResult, _clCenter, _clPt2Fa, _fMaxDistanceP2, _rclFAry, _rclMesh, _rclPAry, CheckDistToFacet(), ExpandRadius(), MeshCore::MeshKernel::GetFacet(), MeshCore::MeshGeomFacet::GetGravityPoint(), MeshCore::MeshFacet::IsFlag(), MeshCore::MeshPoint::MARKED, MeshCore::MeshFacet::MARKED, MeshCore::MeshFacet::SetFlag(), and MeshCore::MeshFacetArray::SetFlag().

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