BRepOffsetAPI_MakeThickSolid Class Reference

Describes functions to build hollowed solids. A hollowed solid is built from an initial solid and a set of faces on this solid, which are to be removed. The remaining faces of the solid become the walls of the hollowed solid, their thickness defined at the time of construction. the solid is built from an initial solid and a set of faces {Fi} from , builds a solid composed by two shells closed by the {Fi}. First shell <SS> is composed by all the faces of expected {Fi}. Second shell is the offset shell of <SS>. A MakeThickSolid object provides a framework for: More...

#include <BRepOffsetAPI_MakeThickSolid.hxx>

Inheritance diagram for BRepOffsetAPI_MakeThickSolid:

Public Member Functions
	BRepOffsetAPI_MakeThickSolid ()
	Constructor does nothing.
void	MakeThickSolidBySimple (const TopoDS_Shape &theS, const double theOffsetValue)
	Constructs solid using simple algorithm. According to its nature it is not possible to set list of the closing faces. This algorithm does not support faces removing. It is caused by fact that intersections are not computed during offset creation. Non-closed shell or face is expected as input.
void	MakeThickSolidByJoin (const TopoDS_Shape &S, const NCollection_List< TopoDS_Shape > &ClosingFaces, const double Offset, const double Tol, const BRepOffset_Mode Mode=BRepOffset_Skin, const bool Intersection=false, const bool SelfInter=false, const GeomAbs_JoinType Join=GeomAbs_Arc, const bool RemoveIntEdges=false, const Message_ProgressRange &theRange=Message_ProgressRange())
	Constructs a hollowed solid from the solid S by removing the set of faces ClosingFaces from S, where: Offset defines the thickness of the walls. Its sign indicates which side of the surface of the solid the hollowed shape is built on;.
void	Build (const Message_ProgressRange &theRange=Message_ProgressRange()) override
	Does nothing.
const NCollection_List< TopoDS_Shape > &	Modified (const TopoDS_Shape &S) override
	Returns the list of shapes modified from the shape .
Public Member Functions inherited from BRepOffsetAPI_MakeOffsetShape
	BRepOffsetAPI_MakeOffsetShape ()
	Constructor does nothing.
void	PerformBySimple (const TopoDS_Shape &theS, const double theOffsetValue)
	Constructs offset shape for the given one using simple algorithm without intersections computation.
void	PerformByJoin (const TopoDS_Shape &S, const double Offset, const double Tol, const BRepOffset_Mode Mode=BRepOffset_Skin, const bool Intersection=false, const bool SelfInter=false, const GeomAbs_JoinType Join=GeomAbs_Arc, const bool RemoveIntEdges=false, const Message_ProgressRange &theRange=Message_ProgressRange())
	Constructs a shape parallel to the shape S, where.
virtual const BRepOffset_MakeOffset &	MakeOffset () const
	Returns instance of the underlying intersection / arc algorithm.
const NCollection_List< TopoDS_Shape > &	Generated (const TopoDS_Shape &S) override
	Returns the list of shapes generated from the shape .
bool	IsDeleted (const TopoDS_Shape &S) override
	Returns true if the shape has been removed from the result.
GeomAbs_JoinType	GetJoinType () const
	Returns offset join type.
Public Member Functions inherited from BRepBuilderAPI_MakeShape
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
Protected Types inherited from BRepOffsetAPI_MakeOffsetShape
enum	OffsetAlgo_Type { OffsetAlgo_NONE , OffsetAlgo_JOIN , OffsetAlgo_SIMPLE }
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 BRepOffsetAPI_MakeOffsetShape
OffsetAlgo_Type	myLastUsedAlgo
BRepOffset_MakeOffset	myOffsetShape
BRepOffset_MakeSimpleOffset	mySimpleOffsetShape
Protected Attributes inherited from BRepBuilderAPI_MakeShape
TopoDS_Shape	myShape
NCollection_List< TopoDS_Shape >	myGenerated

Detailed Description

Describes functions to build hollowed solids. A hollowed solid is built from an initial solid and a set of faces on this solid, which are to be removed. The remaining faces of the solid become the walls of the hollowed solid, their thickness defined at the time of construction. the solid is built from an initial solid and a set of faces {Fi} from , builds a solid composed by two shells closed by the {Fi}. First shell <SS> is composed by all the faces of expected {Fi}. Second shell is the offset shell of <SS>. A MakeThickSolid object provides a framework for:

• defining the cross-section of a hollowed solid,
• implementing the construction algorithm, and
• consulting the result.

Constructor & Destructor Documentation

BRepOffsetAPI_MakeThickSolid()

BRepOffsetAPI_MakeThickSolid::BRepOffsetAPI_MakeThickSolid

(

)

Constructor does nothing.

Member Function Documentation

Build()

void BRepOffsetAPI_MakeThickSolid::Build ( const Message_ProgressRange & theRange = Message_ProgressRange() )

overridevirtual

Does nothing.

Reimplemented from BRepOffsetAPI_MakeOffsetShape.

MakeThickSolidByJoin()

void BRepOffsetAPI_MakeThickSolid::MakeThickSolidByJoin	(	const TopoDS_Shape &	S,
		const NCollection_List< TopoDS_Shape > &	ClosingFaces,
		const double	Offset,
		const double	Tol,
		const BRepOffset_Mode	Mode = BRepOffset_Skin,
		const bool	Intersection = false,
		const bool	SelfInter = false,
		const GeomAbs_JoinType	Join = GeomAbs_Arc,
		const bool	RemoveIntEdges = false,
		const Message_ProgressRange &	theRange = Message_ProgressRange() )

Constructs a hollowed solid from the solid S by removing the set of faces ClosingFaces from S, where: Offset defines the thickness of the walls. Its sign indicates which side of the surface of the solid the hollowed shape is built on;.

• Tol defines the tolerance criterion for coincidence in generated shapes;
• Mode defines the construction type of parallels applied to free edges of shape S. Currently, only one construction type is implemented, namely the one where the free edges do not generate parallels; this corresponds to the default value BRepOffset_Skin; Intersection specifies how the algorithm must work in order to limit the parallels to two adjacent shapes:
• if Intersection is false (default value), the intersection is calculated with the parallels to the two adjacent shapes,
• if Intersection is true, the intersection is calculated by taking account of all parallels generated; this computation method is more general as it avoids self-intersections generated in the offset shape from features of small dimensions on shape S, however this method has not been completely implemented and therefore is not recommended for use;
• SelfInter tells the algorithm whether a computation to eliminate self-intersections needs to be applied to the resulting shape. However, as this functionality is not yet implemented, you should use the default value (false);
• Join defines how to fill the holes that may appear between parallels to the two adjacent faces. It may take values GeomAbs_Arc or GeomAbs_Intersection:
• if Join is equal to GeomAbs_Arc, then pipes are generated between two free edges of two adjacent parallels, and spheres are generated on "images" of vertices; it is the default value,
• if Join is equal to GeomAbs_Intersection, then the parallels to the two adjacent faces are enlarged and intersected, so that there are no free edges on parallels to faces. RemoveIntEdges flag defines whether to remove the INTERNAL edges from the result or not. Warnings Since the algorithm of MakeThickSolid is based on MakeOffsetShape algorithm, the warnings are the same as for MakeOffsetShape.

MakeThickSolidBySimple()

void BRepOffsetAPI_MakeThickSolid::MakeThickSolidBySimple	(	const TopoDS_Shape &	theS,
		const double	theOffsetValue )

Constructs solid using simple algorithm. According to its nature it is not possible to set list of the closing faces. This algorithm does not support faces removing. It is caused by fact that intersections are not computed during offset creation. Non-closed shell or face is expected as input.

Modified()

const NCollection_List< TopoDS_Shape > & BRepOffsetAPI_MakeThickSolid::Modified ( const TopoDS_Shape & S )

overridevirtual

Returns the list of shapes modified from the shape .

Reimplemented from BRepOffsetAPI_MakeOffsetShape.

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

• BRepOffsetAPI_MakeThickSolid.hxx