SMESH_MeshAlgos::Intersector Class Reference

Cut faces of a triangular mesh. More...

#include <SMESH_MeshAlgos.hxx>

Data Structures
struct	Algo
	Intersect faces of a mesh. More...

Public Types
typedef std::vector< SMESH_NodeXYZ >	TFace

Public Member Functions
	Intersector (SMDS_Mesh *mesh, double tol, const std::vector< gp_XYZ > &normals)
	~Intersector ()
void	Cut (const SMDS_MeshElement *face1, const SMDS_MeshElement *face2, const int nbCommonNodes=-1)
	Compute cut of two faces of the mesh. More...
void	Cut (const SMDS_MeshElement *face, SMESH_NodeXYZ &lineEnd1, int edgeIndex1, SMESH_NodeXYZ &lineEnd2, int edgeIndex2)
	Store a face cut by a line given by its ends lying either on face edges or inside the face. More...
void	MakeNewFaces (SMESH_MeshAlgos::TElemIntPairVec &theNew2OldFaces, SMESH_MeshAlgos::TNodeIntPairVec &theNew2OldNodes, const double theSign=1., const bool theOptimize=false)
	Split all faces intersected by Cut() methods. More...

Static Public Member Functions
static bool	CutByPlanes (const SMDS_MeshElement *face, const std::vector< gp_Ax1 > &planes, const double tol, std::vector< TFace > &newFaceConnectivity)
	Cut a face by planes, whose normals point to parts to keep. More...

Private Attributes
Algo *	myAlgo

Detailed Description

Cut faces of a triangular mesh.

Usage work-flow: 1) call Cut() methods as many times as needed 2) call MakeNewFaces() to really modify the mesh faces

Member Typedef Documentation

TFace

typedef std::vector< SMESH_NodeXYZ > SMESH_MeshAlgos::Intersector::TFace

Constructor & Destructor Documentation

Intersector()

SMESH_MeshAlgos::Intersector::Intersector	(	SMDS_Mesh *	mesh,
		double	tol,
		const std::vector< gp_XYZ > &	normals
	)

References myAlgo.

~Intersector()

SMESH_MeshAlgos::Intersector::~Intersector

(

)

References myAlgo.

Member Function Documentation

Cut() [1/2]

void SMESH_MeshAlgos::Intersector::Cut	(	const SMDS_MeshElement *	face,
		SMESH_NodeXYZ &	lineEnd1,
		int	edgeIndex1,
		SMESH_NodeXYZ &	lineEnd2,
		int	edgeIndex2
	)

Store a face cut by a line given by its ends lying either on face edges or inside the face.

store a face cut by a line given by its ends

References SMESH_MeshAlgos::Intersector::Algo::Cut(), and myAlgo.

Cut() [2/2]

void SMESH_MeshAlgos::Intersector::Cut	(	const SMDS_MeshElement *	face1,
		const SMDS_MeshElement *	face2,
		const int	nbCommonNodes = -1
	)

Compute cut of two faces of the mesh.

compute cut of two faces of the mesh

References SMESH_MeshAlgos::Intersector::Algo::Cut(), and myAlgo.

Referenced by SMESH_MeshAlgos::MakeOffset(), and SMESH_MeshAlgos::MakeSlot().

CutByPlanes()

bool SMESH_MeshAlgos::Intersector::CutByPlanes ( const SMDS_MeshElement *  face, const std::vector< gp_Ax1 > &  planes, const double  tol, std::vector< TFace > &  newFaceConnectivity  )

static

Cut a face by planes, whose normals point to parts to keep.

References SMDS_Mesh::AddFace(), SMDS_Mesh::AddNode(), SMDS_Mesh::AddPolygonalFace(), SMDS_MeshElement::begin_nodes(), SMESH_MeshAlgos::Intersector::Algo::Cut(), SMDS_MeshElement::end_nodes(), SMESH_MeshAlgos::FaceNormal(), SMDS_MeshElement::GetID(), SMDS_MeshElement::GetNode(), SMDS_MeshElement::GetNodeIndex(), SMESH_MeshAlgos::Intersector::Algo::IntersectNewEdges(), SMESH_MeshAlgos::Intersector::Algo::myCutFaces, and SMDS_MeshElement::NbCornerNodes().

MakeNewFaces()

void SMESH_MeshAlgos::Intersector::MakeNewFaces	(	SMESH_MeshAlgos::TElemIntPairVec &	theNew2OldFaces,
		SMESH_MeshAlgos::TNodeIntPairVec &	theNew2OldNodes,
		const double	theSign = 1.,
		const bool	theOptimize = false
	)

Split all faces intersected by Cut() methods.

split all face intersected by Cut() methods

References SMESH_MeshAlgos::Intersector::Algo::MakeNewFaces(), and myAlgo.

Referenced by SMESH_MeshAlgos::MakeOffset(), and SMESH_MeshAlgos::MakeSlot().

Field Documentation

myAlgo

Algo* SMESH_MeshAlgos::Intersector::myAlgo

private

Referenced by Cut(), Intersector(), MakeNewFaces(), and ~Intersector().