BRepFeat_MakeLinearForm Class Reference

Builds a rib or a groove along a developable, planar surface. The semantics of mechanical features is built around giving thickness to a contour. This thickness can either be symmetrical - on one side of the contour - or dissymmetrical - on both sides. As in the semantics of form features, the thickness is defined by construction of shapes in specific contexts. The development contexts differ, however, in case of mechanical features. Here they include extrusion: More...

#include <BRepFeat_MakeLinearForm.hxx>

Inheritance diagram for BRepFeat_MakeLinearForm:

Public Member Functions
	BRepFeat_MakeLinearForm ()
	initializes the linear form class
	BRepFeat_MakeLinearForm (const TopoDS_Shape &Sbase, const TopoDS_Wire &W, const occ::handle< Geom_Plane > &P, const gp_Vec &Direction, const gp_Vec &Direction1, const int Fuse, const bool Modify)
	contour W, a shape Sbase and a plane P are initialized to serve as the basic elements in the construction of the rib or groove. Direction and Direction1 give The vectors for defining the direction(s) in which thickness will be built up. Fuse offers a choice between:
void	Init (const TopoDS_Shape &Sbase, const TopoDS_Wire &W, const occ::handle< Geom_Plane > &P, const gp_Vec &Direction, const gp_Vec &Direction1, const int Fuse, const bool Modify)
	Initializes this construction algorithm. A contour W, a shape Sbase and a plane P are initialized to serve as the basic elements in the construction of the rib or groove. The vectors for defining the direction(s) in which thickness will be built up are given by Direction and Direction1. Fuse offers a choice between:
void	Add (const TopoDS_Edge &E, const TopoDS_Face &OnFace)
	Indicates that the edge <E> will slide on the face <OnFace>. Raises ConstructionError if the face does not belong to the basis shape, or the edge to the prismed shape.
void	Perform ()
	Performs a prism from the wire to the plane along the basis shape Sbase. Reconstructs the feature topologically.
void	TransformShapeFU (const int flag)
	Limits construction of the linear form feature by using one of the following three semantics:
bool	Propagate (NCollection_List< TopoDS_Shape > &L, const TopoDS_Face &F, const gp_Pnt &FPoint, const gp_Pnt &LPoint, bool &falseside)
Public Member Functions inherited from BRepFeat_RibSlot
bool	IsDeleted (const TopoDS_Shape &F) override
	Returns true if F a TopoDS_Shape of type edge or face has been deleted.
const NCollection_List< TopoDS_Shape > &	Modified (const TopoDS_Shape &F) override
	Returns the list of generated Faces F. This list may be empty.
const NCollection_List< TopoDS_Shape > &	Generated (const TopoDS_Shape &S) override
	Returns a list NCollection_List<TopoDS_Shape> of the faces S created in the shape.
const NCollection_List< TopoDS_Shape > &	FirstShape () const
	Returns the list of shapes created at the bottom of the created form. It may be an empty list.
const NCollection_List< TopoDS_Shape > &	LastShape () const
	Returns the list of shapes created at the top of the created form. It may be an empty list.
const NCollection_List< TopoDS_Shape > &	FacesForDraft () const
	Returns a list of the limiting and glueing faces generated by the feature. These faces did not originally exist in the basis shape. The list provides the information necessary for subsequent addition of a draft to a face. It may be an empty list. If a face has tangent edges, no draft is possible, and the tangent edges must subsequently be removed if you want to add a draft to the face.
const NCollection_List< TopoDS_Shape > &	NewEdges () const
	Returns a list of the limiting and glueing edges generated by the feature. These edges did not originally exist in the basis shape. The list provides the information necessary for subsequent addition of fillets. It may be an empty list.
const NCollection_List< TopoDS_Shape > &	TgtEdges () const
	Returns a list of the tangent edges among the limiting and glueing edges generated by the feature. These edges did not originally exist in the basis shape and are tangent to the face against which the feature is built. The list provides the information necessary for subsequent addition of fillets. It may be an empty list. If an edge is tangent, no fillet is possible, and the edge must subsequently be removed if you want to add a fillet.
BRepFeat_StatusError	CurrentStatusError () const
Public Member Functions inherited from BRepBuilderAPI_MakeShape
virtual void	Build (const Message_ProgressRange &theRange=Message_ProgressRange())
	This is called by Shape(). It does nothing but may be redefined.
virtual const TopoDS_Shape &	Shape ()
	Returns a shape built by the shape construction algorithm. Raises exception StdFail_NotDone if the shape was not built.
	operator TopoDS_Shape ()
Public Member Functions inherited from BRepBuilderAPI_Command
virtual	~BRepBuilderAPI_Command ()
virtual bool	IsDone () const
void	Check () const
	Raises NotDone if done is false.

Additional Inherited Members
Static Public Member Functions inherited from BRepFeat_RibSlot
static double	IntPar (const occ::handle< Geom_Curve > &C, const gp_Pnt &P)
static TopoDS_Face	ChoiceOfFaces (NCollection_List< TopoDS_Shape > &faces, const occ::handle< Geom_Curve > &cc, const double par, const double bnd, const occ::handle< Geom_Plane > &Pln)
Protected Member Functions inherited from BRepFeat_RibSlot
	BRepFeat_RibSlot ()
	Redefines the empty constructor.
void	LFPerform ()
	General perform method...
gp_Pnt	CheckPoint (const TopoDS_Edge &e, const double bnd, const occ::handle< Geom_Plane > &Pln)
gp_Dir	Normal (const TopoDS_Face &F, const gp_Pnt &P)
void	EdgeExtention (TopoDS_Edge &e, const double bnd, const bool FirstLast)
double	HeightMax (const TopoDS_Shape &theSbase, const TopoDS_Shape &theSUntil, gp_Pnt &p1, gp_Pnt &p2)
bool	ExtremeFaces (const bool RevolRib, const double bnd, const occ::handle< Geom_Plane > &Pln, TopoDS_Edge &FirstEdge, TopoDS_Edge &LastEdge, TopoDS_Face &FirstFace, TopoDS_Face &LastFace, TopoDS_Vertex &FirstVertex, TopoDS_Vertex &LastVertex, bool &OnFirstFace, bool &OnLastFace, bool &PtOnFirstEdge, bool &PtOnLastEdge, TopoDS_Edge &OnFirstEdge, TopoDS_Edge &OnLastEdge)
void	PtOnEdgeVertex (const bool RevolRib, const TopoDS_Shape &shape, const gp_Pnt &point, const TopoDS_Vertex &FirstVertex, const TopoDS_Vertex &LastVertex, bool &PtOnEdge, TopoDS_Edge &OnEdge, bool &PtOnVertex, TopoDS_Vertex &OnVertex)
bool	SlidingProfile (TopoDS_Face &Prof, const bool RevolRib, const double myTol, int &Concavite, const occ::handle< Geom_Plane > &myPln, const TopoDS_Face &BndFace, const gp_Pnt &CheckPnt, const TopoDS_Face &FirstFace, const TopoDS_Face &LastFace, const TopoDS_Vertex &FirstVertex, const TopoDS_Vertex &LastVertex, const TopoDS_Edge &FirstEdge, const TopoDS_Edge &LastEdge)
bool	NoSlidingProfile (TopoDS_Face &Prof, const bool RevolRib, const double myTol, int &Concavite, const occ::handle< Geom_Plane > &myPln, const double bnd, const TopoDS_Face &BndFace, const gp_Pnt &CheckPnt, const TopoDS_Face &FirstFace, const TopoDS_Face &LastFace, const TopoDS_Vertex &FirstVertex, const TopoDS_Vertex &LastVertex, const TopoDS_Edge &FirstEdge, const TopoDS_Edge &LastEdge, const bool OnFirstFace, const bool OnLastFace)
void	UpdateDescendants (const LocOpe_Gluer &G)
	Updates the data structures of descendant shapes during the glueing operation.Returns the modified, generated and deleted faces during the course of the glueing operation.
void	UpdateDescendants (const BRepAlgoAPI_BooleanOperation &aBOP, const TopoDS_Shape &SResult, const bool SkipFace=false)
Protected Member Functions inherited from BRepBuilderAPI_MakeShape
	BRepBuilderAPI_MakeShape ()
Protected Member Functions inherited from BRepBuilderAPI_Command
	BRepBuilderAPI_Command ()
	Set done to False.
void	Done ()
	Set done to true.
void	NotDone ()
	Set done to false.
Protected Attributes inherited from BRepFeat_RibSlot
gp_Pnt	myFirstPnt
gp_Pnt	myLastPnt
bool	myFuse
bool	mySliding
NCollection_DataMap< TopoDS_Shape, NCollection_List< TopoDS_Shape >, TopTools_ShapeMapHasher >	myMap
NCollection_DataMap< TopoDS_Shape, NCollection_List< TopoDS_Shape >, TopTools_ShapeMapHasher >	myLFMap
TopoDS_Shape	myFShape
TopoDS_Shape	myLShape
BRepFeat_PerfSelection	myPerfSelection
TopoDS_Wire	myWire
TopoDS_Shape	mySbase
TopoDS_Face	mySkface
TopoDS_Face	myPbase
TopoDS_Shape	myGShape
TopoDS_Shape	mySUntil
NCollection_DataMap< TopoDS_Shape, TopoDS_Shape, TopTools_ShapeMapHasher >	myGluedF
NCollection_List< TopoDS_Shape >	myNewEdges
NCollection_List< TopoDS_Shape >	myTgtEdges
NCollection_List< TopoDS_Shape >	myFacesForDraft
BRepFeat_StatusError	myStatusError
Protected Attributes inherited from BRepBuilderAPI_MakeShape
TopoDS_Shape	myShape
NCollection_List< TopoDS_Shape >	myGenerated

Detailed Description

Builds a rib or a groove along a developable, planar surface. The semantics of mechanical features is built around giving thickness to a contour. This thickness can either be symmetrical - on one side of the contour - or dissymmetrical - on both sides. As in the semantics of form features, the thickness is defined by construction of shapes in specific contexts. The development contexts differ, however, in case of mechanical features. Here they include extrusion:

• to a limiting face of the basis shape
• to or from a limiting plane
• to a height.

Constructor & Destructor Documentation

BRepFeat_MakeLinearForm() [1/2]

BRepFeat_MakeLinearForm::BRepFeat_MakeLinearForm

(

)

initializes the linear form class

BRepFeat_MakeLinearForm() [2/2]

BRepFeat_MakeLinearForm::BRepFeat_MakeLinearForm	(	const TopoDS_Shape &	Sbase,
		const TopoDS_Wire &	W,
		const occ::handle< Geom_Plane > &	P,
		const gp_Vec &	Direction,
		const gp_Vec &	Direction1,
		const int	Fuse,
		const bool	Modify )

contour W, a shape Sbase and a plane P are initialized to serve as the basic elements in the construction of the rib or groove. Direction and Direction1 give The vectors for defining the direction(s) in which thickness will be built up. Fuse offers a choice between:

• removing matter with a Boolean cut using the setting 0 in case of the groove
• adding matter with Boolean fusion using the setting 1 in case of the rib.

Member Function Documentation

Add()

void BRepFeat_MakeLinearForm::Add	(	const TopoDS_Edge &	E,
		const TopoDS_Face &	OnFace )

Indicates that the edge <E> will slide on the face <OnFace>. Raises ConstructionError if the face does not belong to the basis shape, or the edge to the prismed shape.

Init()

void BRepFeat_MakeLinearForm::Init	(	const TopoDS_Shape &	Sbase,
		const TopoDS_Wire &	W,
		const occ::handle< Geom_Plane > &	P,
		const gp_Vec &	Direction,
		const gp_Vec &	Direction1,
		const int	Fuse,
		const bool	Modify )

Initializes this construction algorithm. A contour W, a shape Sbase and a plane P are initialized to serve as the basic elements in the construction of the rib or groove. The vectors for defining the direction(s) in which thickness will be built up are given by Direction and Direction1. Fuse offers a choice between:

• removing matter with a Boolean cut using the setting 0 in case of the groove
• adding matter with Boolean fusion using the setting 1 in case of the rib.

Perform()

void BRepFeat_MakeLinearForm::Perform

(

)

Performs a prism from the wire to the plane along the basis shape Sbase. Reconstructs the feature topologically.

Propagate()

bool BRepFeat_MakeLinearForm::Propagate	(	NCollection_List< TopoDS_Shape > &	L,
		const TopoDS_Face &	F,
		const gp_Pnt &	FPoint,
		const gp_Pnt &	LPoint,
		bool &	falseside )

TransformShapeFU()

void BRepFeat_MakeLinearForm::TransformShapeFU

(

const int

flag

)

Limits construction of the linear form feature by using one of the following three semantics:

• from a limiting plane
• to a limiting plane
• from one limiting plane to another. The setting is provided by a flag, flag, which can be set to from and/or until. The third semantic possibility above is selected by showing both from and until at the same time.

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

• BRepFeat_MakeLinearForm.hxx