MeshTest_CheckTopology Class Reference

This class checks topology of the mesh presented by triangulations of faces. More...

#include <MeshTest_CheckTopology.hxx>

Public Member Functions
	MeshTest_CheckTopology (const TopoDS_Shape &theShape)
	constructor
void	Perform (Draw_Interpretor &di)
	performs checking
Standard_Integer	NbFacesWithFL () const
	returns the number of faces with free links
Standard_Integer	GetFaceNumWithFL (const Standard_Integer theIndex) const
	returns the number (in the shape) of a face with free links with the given index
Standard_Integer	NbFreeLinks (const Standard_Integer theIndex) const
	returns the number free links on a face with the given index
void	GetFreeLink (const Standard_Integer theFaceIndex, const Standard_Integer theLinkIndex, Standard_Integer &theNode1, Standard_Integer &theNode2) const
	gets the numbers of nodes of a free link with the given index in the face with the given index
Standard_Integer	NbCrossFaceErrors () const
	returns the number of cross face errors
void	GetCrossFaceError (const Standard_Integer theIndex, Standard_Integer &theFace1, Standard_Integer &theNode1, Standard_Integer &theFace2, Standard_Integer &theNode2, Standard_Real &theValue) const
	gets the attributes of a cross face error with the given index
Standard_Integer	NbAsyncEdges () const
	returns the number of async edges
Standard_Integer	GetAsyncEdgeNum (const Standard_Integer theIndex) const
	returns the number (in the shape) of an async edge with the given index
Standard_Integer	NbFreeNodes () const
	returns the number of free nodes
void	GetFreeNodeNum (const Standard_Integer theIndex, Standard_Integer &theFaceNum, Standard_Integer &theNodeNum) const
	returns the number of face containing the Index-th detected free node, and number of this node in the triangulation of that face
Standard_Integer	NbSmallTriangles () const
	Returns number of triangles with null area.
void	GetSmallTriangle (const Standard_Integer theIndex, Standard_Integer &theFaceNum, Standard_Integer &theNodeNum) const
	returns the number of face containing the Index-th detected small triangle and number of the problematic triangle in this face.

Detailed Description

This class checks topology of the mesh presented by triangulations of faces.

The following error are reported:

• free links. A link is considered free if it has only one neighboring triangle and at least one of its nodes belongs to interior of the face rather than to its boundary.
• cross face errors. It is a situation when a point on a common boundary between two faces has different 3d coordinates on each triangulation. The error is reported if the distance is greater than a deflection written in triangulations.
• asynchronous edges. It is an edge having polygons on two neighboring triangulations with different number of points in the polygons.
• free nodes – nodes not shared by any triangle.

Constructor & Destructor Documentation

MeshTest_CheckTopology()

MeshTest_CheckTopology::MeshTest_CheckTopology ( const TopoDS_Shape & theShape )

inline

constructor

Member Function Documentation

GetAsyncEdgeNum()

Standard_Integer MeshTest_CheckTopology::GetAsyncEdgeNum ( const Standard_Integer theIndex ) const

inline

returns the number (in the shape) of an async edge with the given index

GetCrossFaceError()

void MeshTest_CheckTopology::GetCrossFaceError	(	const Standard_Integer	theIndex,
		Standard_Integer &	theFace1,
		Standard_Integer &	theNode1,
		Standard_Integer &	theFace2,
		Standard_Integer &	theNode2,
		Standard_Real &	theValue ) const

gets the attributes of a cross face error with the given index

GetFaceNumWithFL()

Standard_Integer MeshTest_CheckTopology::GetFaceNumWithFL ( const Standard_Integer theIndex ) const

inline

returns the number (in the shape) of a face with free links with the given index

GetFreeLink()

void MeshTest_CheckTopology::GetFreeLink	(	const Standard_Integer	theFaceIndex,
		const Standard_Integer	theLinkIndex,
		Standard_Integer &	theNode1,
		Standard_Integer &	theNode2 ) const

gets the numbers of nodes of a free link with the given index in the face with the given index

GetFreeNodeNum()

void MeshTest_CheckTopology::GetFreeNodeNum ( const Standard_Integer theIndex, Standard_Integer & theFaceNum, Standard_Integer & theNodeNum ) const

inline

returns the number of face containing the Index-th detected free node, and number of this node in the triangulation of that face

GetSmallTriangle()

void MeshTest_CheckTopology::GetSmallTriangle ( const Standard_Integer theIndex, Standard_Integer & theFaceNum, Standard_Integer & theNodeNum ) const

inline

returns the number of face containing the Index-th detected small triangle and number of the problematic triangle in this face.

NbAsyncEdges()

Standard_Integer MeshTest_CheckTopology::NbAsyncEdges ( ) const

inline

returns the number of async edges

NbCrossFaceErrors()

Standard_Integer MeshTest_CheckTopology::NbCrossFaceErrors ( ) const

inline

returns the number of cross face errors

NbFacesWithFL()

Standard_Integer MeshTest_CheckTopology::NbFacesWithFL ( ) const

inline

returns the number of faces with free links

NbFreeLinks()

Standard_Integer MeshTest_CheckTopology::NbFreeLinks ( const Standard_Integer theIndex ) const

inline

returns the number free links on a face with the given index

NbFreeNodes()

Standard_Integer MeshTest_CheckTopology::NbFreeNodes ( ) const

inline

returns the number of free nodes

NbSmallTriangles()

Standard_Integer MeshTest_CheckTopology::NbSmallTriangles ( ) const

inline

Returns number of triangles with null area.

Perform()

void MeshTest_CheckTopology::Perform

(

Draw_Interpretor &

di

)

performs checking

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

• MeshTest_CheckTopology.hxx