Create a Delaunay triangulation of nodes on a face boundary and provide exploration of nodes shared by elements lying on the face. More...

#include <SMESH_Delaunay.hxx>

Inheritance diagram for SMESH_Delaunay:

[legend]

Public Member Functions
	SMESH_Delaunay (const std::vector< const UVPtStructVec * > &boundaryNodes, const TopoDS_Face &face, const int faceID)
	Construct a Delaunay triangulation of given boundary nodes. More...

virtual	~SMESH_Delaunay ()

void	InitTraversal (const int nbNodesToVisit=-1)
	Prepare to the exploration of nodes. More...

const SMDS_MeshNode *	NextNode (double bc[3], int triaNodes[3])
	Return a node with its Barycentric Coordinates within the triangle defined by its node indices (zero based) More...

size_t	NbVisitedNodes () const

const BRepMesh_Triangle *	FindTriangle (const gp_XY &uv, const BRepMesh_Triangle *bmTria, double bc[3], int triaNodes[3])
	Find a Delaunay triangle containing a given 2D point and return barycentric coordinates within the found triangle. More...

const BRepMesh_Triangle *	GetTriangleNear (int iBndNode)
	Return a triangle sharing a given boundary node. More...

const std::vector< const SMDS_MeshNode * > &	GetBndNodes () const

gp_XY	GetBndUV (const int iNode) const
	Return UV of the i-th source boundary node (zero based) More...

const gp_XY &	GetScale () const

void	ToPython () const
	Write a python script that creates an equal mesh in Mesh module. More...

	Handle (BRepMesh_DataStructureOfDelaun) GetDS()

Protected Types
typedef std::list< std::pair< const SMDS_MeshNode , const BRepMesh_Triangle > >	TNodeTriaList

Protected Member Functions
virtual gp_XY	getNodeUV (const TopoDS_Face &face, const SMDS_MeshNode *node) const =0

	Handle (BRepMesh_DataStructureOfDelaun) _triaDS

Static Protected Member Functions
static void	addCloseNodes (const SMDS_MeshNode node, const BRepMesh_Triangle bmTria, const int faceID, TNodeTriaList &noTriQueue)
	Add non-marked nodes surrounding a given one to a queue. More...

Protected Attributes
const TopoDS_Face &	_face

int	_faceID

std::vector< const SMDS_MeshNode * >	_bndNodes

gp_XY	_scale

size_t	_nbNodesToVisit

size_t	_nbVisitedNodes

size_t	_iBndNode

TNodeTriaList	_noTriQueue

Detailed Description

Create a Delaunay triangulation of nodes on a face boundary and provide exploration of nodes shared by elements lying on the face.

For a returned node, also return a Delaunay triangle the node lies in and its Barycentric Coordinates within the triangle. Only non-marked nodes are visited. Boundary nodes given at the construction are not returned.

For usage, this class needs to be subclassed to implement getNodeUV();

Member Typedef Documentation

◆ TNodeTriaList

typedef std::list< std::pair< const SMDS_MeshNode*, const BRepMesh_Triangle* > > SMESH_Delaunay::TNodeTriaList

protected

Constructor & Destructor Documentation

◆ SMESH_Delaunay()

SMESH_Delaunay::SMESH_Delaunay	(	const std::vector< const UVPtStructVec * > &	boundaryNodes,
		const TopoDS_Face &	face,
		const int	faceID
	)

Construct a Delaunay triangulation of given boundary nodes.

Parameters

[in]	boundaryNodes	- vector of nodes of a wire
[in]	face	- the face
[in]	faceID	- the face ID

References _bndNodes, and _scale.

◆ ~SMESH_Delaunay()

virtual SMESH_Delaunay::~SMESH_Delaunay ( )

virtual

Member Function Documentation

◆ addCloseNodes()

void SMESH_Delaunay::addCloseNodes	(	const SMDS_MeshNode *	node,
		const BRepMesh_Triangle *	bmTria,
		const int	faceID,
		TNodeTriaList &	noTriQueue
	)

staticprotected

Add non-marked nodes surrounding a given one to a queue.

References _noTriQueue, SMDS_MeshNode::GetInverseElementIterator(), SMDS_MeshElement::GetNode(), SMDS_MeshElement::getshapeId(), SMDS_MeshElement::isMarked(), SMDS_MeshElement::NbNodes(), and SMDSAbs_Face.

Referenced by NextNode().

◆ FindTriangle()

const BRepMesh_Triangle * SMESH_Delaunay::FindTriangle	(	const gp_XY &	uv,
		const BRepMesh_Triangle *	bmTria,
		double	bc[3],
		int	triaNodes[3]
	)

Find a Delaunay triangle containing a given 2D point and return barycentric coordinates within the found triangle.

References _scale, and SMESH_MeshAlgos::GetBarycentricCoords().

Referenced by NextNode().

◆ GetBndNodes()

const std::vector< const SMDS_MeshNode* >& SMESH_Delaunay::GetBndNodes ( ) const

Referenced by StdMeshers_ProjectionUtils::Morph::Perform().

◆ GetBndUV()

gp_XY SMESH_Delaunay::GetBndUV ( const int iNode ) const

Return UV of the i-th source boundary node (zero based)

◆ getNodeUV()

virtual gp_XY SMESH_Delaunay::getNodeUV	(	const TopoDS_Face &	face,
		const SMDS_MeshNode *	node
	)		const

protectedpure virtual

Implemented in StdMeshers_ProjectionUtils::Delaunay.

Referenced by NextNode().

◆ GetScale()

const gp_XY& SMESH_Delaunay::GetScale ( ) const

◆ GetTriangleNear()

const BRepMesh_Triangle * SMESH_Delaunay::GetTriangleNear ( int iBndNode )

Return a triangle sharing a given boundary node.

Parameters

[in] iBndNode - index of the boundary node

Returns: const BRepMesh_Triangle* - a found triangle

References _bndNodes.

Referenced by NextNode().

◆ Handle() [1/2]

SMESH_Delaunay::Handle ( BRepMesh_DataStructureOfDelaun )

protected

◆ Handle() [2/2]

SMESH_Delaunay::Handle ( BRepMesh_DataStructureOfDelaun )

◆ InitTraversal()

void SMESH_Delaunay::InitTraversal ( const int nbNodesToVisit = -1 )

Prepare to the exploration of nodes.

References _iBndNode, _nbNodesToVisit, _nbVisitedNodes, and _noTriQueue.

Referenced by StdMeshers_ProjectionUtils::Morph::Perform().

◆ NbVisitedNodes()

size_t SMESH_Delaunay::NbVisitedNodes ( ) const

◆ NextNode()

const SMDS_MeshNode * SMESH_Delaunay::NextNode	(	double	bc[3],
		int	triaNodes[3]
	)

Return a node with its Barycentric Coordinates within the triangle defined by its node indices (zero based)

Parameters

[out]	bc	- Barycentric Coordinates of the returned node
[out]	triaNodes	- indices of triangle nodes

Returns: const SMDS_MeshNode* - the next node or NULL

References _bndNodes, _face, _faceID, _iBndNode, _nbNodesToVisit, _nbVisitedNodes, _noTriQueue, addCloseNodes(), FindTriangle(), getNodeUV(), GetTriangleNear(), SMDS_MeshElement::isMarked(), and SMDS_MeshElement::setIsMarked().

Referenced by StdMeshers_ProjectionUtils::Morph::Perform().

◆ ToPython()

void SMESH_Delaunay::ToPython ( ) const

Write a python script that creates an equal mesh in Mesh module.

References SMESH_File::openForWriting(), SMESH_File::remove(), and SMESH_File::write().

Field Documentation

◆ _bndNodes

std::vector< const SMDS_MeshNode* > SMESH_Delaunay::_bndNodes

protected

Referenced by GetTriangleNear(), NextNode(), and SMESH_Delaunay().

◆ _face

const TopoDS_Face& SMESH_Delaunay::_face

protected

Referenced by NextNode().

◆ _faceID

int SMESH_Delaunay::_faceID

protected

Referenced by NextNode().

◆ _iBndNode

size_t SMESH_Delaunay::_iBndNode

protected

Referenced by InitTraversal(), and NextNode().

◆ _nbNodesToVisit

size_t SMESH_Delaunay::_nbNodesToVisit

protected

Referenced by InitTraversal(), and NextNode().

◆ _nbVisitedNodes

size_t SMESH_Delaunay::_nbVisitedNodes

protected

Referenced by InitTraversal(), and NextNode().

◆ _noTriQueue

TNodeTriaList SMESH_Delaunay::_noTriQueue

protected

Referenced by addCloseNodes(), InitTraversal(), and NextNode().

◆ _scale

gp_XY SMESH_Delaunay::_scale

protected

Referenced by FindTriangle(), and SMESH_Delaunay().

Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ TNodeTriaList

Constructor & Destructor Documentation

◆ SMESH_Delaunay()

◆ ~SMESH_Delaunay()

Member Function Documentation

◆ addCloseNodes()

◆ FindTriangle()

◆ GetBndNodes()

◆ GetBndUV()

◆ getNodeUV()

◆ GetScale()

◆ GetTriangleNear()

◆ Handle() [1/2]

◆ Handle() [2/2]

◆ InitTraversal()

◆ NbVisitedNodes()

◆ NextNode()

◆ ToPython()

Field Documentation

◆ _bndNodes

◆ _face

◆ _faceID

◆ _iBndNode

◆ _nbNodesToVisit

◆ _nbVisitedNodes

◆ _noTriQueue

◆ _scale