The MeshProjection class projects a shape onto a mesh. More...

#include <CurveProjector.h>

Classes
struct	Edge

struct	PolyLine

struct	SplitEdge
	Helper class. More...

Public Member Functions
void	discretize (const TopoDS_Edge &aEdge, std::vector< Base::Vector3f > &polyline, std::size_t minPoints=2) const

void	findSectionParameters (const TopoDS_Edge &edge, const Base::Vector3f &dir, std::set< double > &parameters) const
	findSectionParameters Find the parameters of the edge where when projecting the corresponding point will lie on an edge of the mesh. More...

	MeshProjection (const MeshKernel &rMesh)
	Construction. More...

void	projectOnMesh (const std::vector< Base::Vector3f > &pointsIn, const Base::Vector3f &dir, float tolerance, std::vector< Base::Vector3f > &pointsOut) const
	projectOnMesh Projects the given points onto the mesh along a given direction. More...

void	projectParallelToMesh (const std::vector< PolyLine > &aEdges, const Base::Vector3f &dir, std::vector< PolyLine > &rPolyLines) const
	Project all polylines onto the mesh using parallel projection. More...

void	projectParallelToMesh (const TopoDS_Shape &aShape, const Base::Vector3f &dir, std::vector< PolyLine > &rPolyLines) const
	Project all edges of the shape onto the mesh using parallel projection. More...

void	projectToMesh (const TopoDS_Shape &aShape, float fMaxDist, std::vector< PolyLine > &rPolyLines) const
	Searches all edges that intersect with the projected curve aShape. More...

void	splitMeshByShape (const TopoDS_Shape &aShape, float fMaxDist) const
	Cuts the mesh at the curve defined by aShape. More...

	~MeshProjection ()
	Destruction. More...

Protected Member Functions
bool	findIntersection (const Edge &, const Edge &, const Base::Vector3f &dir, Base::Vector3f &res) const

void	projectEdgeToEdge (const TopoDS_Edge &aCurve, float fMaxDist, const MeshCore::MeshFacetGrid &rGrid, std::vector< SplitEdge > &rSplitEdges) const

Detailed Description

The MeshProjection class projects a shape onto a mesh.

Author: Werner Mayer

Constructor & Destructor Documentation

◆ MeshProjection()

MeshProjection::MeshProjection ( const MeshKernel & rMesh )

Construction.

◆ ~MeshProjection()

MeshProjection::~MeshProjection ( )

Destruction.

Member Function Documentation

◆ discretize()

void MeshProjection::discretize	(	const TopoDS_Edge &	aEdge,
		std::vector< Base::Vector3f > &	polyline,
		std::size_t	minPoints = `2`
	)		const

Referenced by findSectionParameters(), projectEdgeToEdge(), and projectParallelToMesh().

◆ findIntersection()

bool MeshProjection::findIntersection	(	const Edge &	edgeSegm,
		const Edge &	meshEdge,
		const Base::Vector3f &	dir,
		Base::Vector3f &	res
	)		const

protected

References MeshPart::MeshProjection::Edge::cPt1, MeshPart::MeshProjection::Edge::cPt2, Base::Vector3< _Precision >::Cross(), and Base::Vector3< _Precision >::Dot().

Referenced by findSectionParameters().

◆ findSectionParameters()

void MeshProjection::findSectionParameters	(	const TopoDS_Edge &	edge,
		const Base::Vector3f &	dir,
		std::set< double > &	parameters
	)		const

findSectionParameters Find the parameters of the edge where when projecting the corresponding point will lie on an edge of the mesh.

Parameters

edge
dir
parameters

References MeshPart::MeshProjection::Edge::cPt1, MeshPart::MeshProjection::Edge::cPt2, discretize(), findIntersection(), and MeshCore::MeshAlgorithm::GetAverageEdgeLength().

◆ projectEdgeToEdge()

void MeshProjection::projectEdgeToEdge	(	const TopoDS_Edge &	aCurve,
		float	fMaxDist,
		const MeshCore::MeshFacetGrid &	rGrid,
		std::vector< SplitEdge > &	rSplitEdges
	)		const

protected

References Base::Console(), MeshPart::MeshProjection::SplitEdge::cPt, discretize(), Base::Distance(), MeshCore::MeshGeomFacet::GetNormal(), Base::ConsoleSingleton::Log(), Base::SequencerLauncher::next(), MeshCore::MeshAlgorithm::SearchFacetsFromPolyline(), Base::Vector3< _Precision >::Set(), MeshCore::MeshFacetIterator::Set(), MeshCore::MeshPointIterator::Set(), MeshPart::MeshProjection::SplitEdge::uE0, MeshPart::MeshProjection::SplitEdge::uE1, Base::Vector3< _Precision >::x, Base::Vector3< _Precision >::y, and Base::Vector3< _Precision >::z.

Referenced by projectToMesh().

◆ projectOnMesh()

void MeshProjection::projectOnMesh	(	const std::vector< Base::Vector3f > &	pointsIn,
		const Base::Vector3f &	dir,
		float	tolerance,
		std::vector< Base::Vector3f > &	pointsOut
	)		const

projectOnMesh Projects the given points onto the mesh along a given direction.

The points can can be projected will be saved to pointsOut

projectOnMesh

Parameters

pointsIn
dir
tolerance
pointsOut

References MeshCore::MeshAlgorithm::GetAverageEdgeLength(), MeshCore::MeshGeomFacet::IntersectPlaneWithLine(), MeshCore::MeshGeomFacet::IsPointOfFace(), MeshCore::MeshAlgorithm::NearestFacetOnRay(), Base::SequencerLauncher::next(), draftutils.utils::tolerance(), and draftgeoutils.general::vec().

◆ projectParallelToMesh() [1/2]

void MeshProjection::projectParallelToMesh	(	const std::vector< PolyLine > &	aEdges,
		const Base::Vector3f &	dir,
		std::vector< PolyLine > &	rPolyLines
	)		const

Project all polylines onto the mesh using parallel projection.

References MeshCore::MeshAlgorithm::GetAverageEdgeLength(), MeshCore::MeshAlgorithm::NearestFacetOnRay(), Base::SequencerLauncher::next(), MeshPart::MeshProjection::PolyLine::points, and MeshCore::MeshProjection::projectLineOnMesh().

◆ projectParallelToMesh() [2/2]

void MeshProjection::projectParallelToMesh	(	const TopoDS_Shape &	aShape,
		const Base::Vector3f &	dir,
		std::vector< PolyLine > &	rPolyLines
	)		const

Project all edges of the shape onto the mesh using parallel projection.

References discretize(), MeshCore::MeshAlgorithm::GetAverageEdgeLength(), MeshCore::MeshAlgorithm::NearestFacetOnRay(), Base::SequencerLauncher::next(), MeshPart::MeshProjection::PolyLine::points, and MeshCore::MeshProjection::projectLineOnMesh().

◆ projectToMesh()

void MeshProjection::projectToMesh	(	const TopoDS_Shape &	aShape,
		float	fMaxDist,
		std::vector< PolyLine > &	rPolyLines
	)		const

Searches all edges that intersect with the projected curve aShape.

Therefore aShape must contain shapes of type TopoDS_Edge, other shape types are ignored. A possible solution is taken if the distance between the curve point and the projected point is <= fMaxDist.

References MeshCore::MeshAlgorithm::GetAverageEdgeLength(), Base::SequencerLauncher::next(), MeshPart::MeshProjection::PolyLine::points, and projectEdgeToEdge().

Referenced by splitMeshByShape().

◆ splitMeshByShape()

void MeshProjection::splitMeshByShape	(	const TopoDS_Shape &	aShape,
		float	fMaxDist
	)		const

Cuts the mesh at the curve defined by aShape.

This method call projectToMesh() to get the split the facet at the found points.

See also: projectToMesh() for more details.

References projectToMesh().

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

FreeCAD/src/Mod/MeshPart/App/CurveProjector.h
FreeCAD/src/Mod/MeshPart/App/CurveProjector.cpp

Classes

Public Member Functions

Protected Member Functions