One of the most significant aspects of BRepFeat functionality is the use of local operations as opposed to global ones. In a global operation, you would first construct a form of the type you wanted in your final feature, and then remove matter so that it could fit into your initial basis object. In a local operation, however, you specify the domain of the feature construction with aspects of the shape on which the feature is being created. These semantics are expressed in terms of a member shape of the basis shape from which - or up to which - matter will be added or removed. As a result, local operations make calculations simpler and faster than global operations. In BRepFeat, the semantics of local operations define features constructed from a contour or a part of the basis shape referred to as the tool. In a SplitShape object, wires or edges of a face in the basis shape to be used as a part of the feature are cut out and projected to a plane outside or inside the basis shape. By rebuilding the initial shape incorporating the edges and the faces of the tool, protrusion or depression features can be constructed. More...
#include <BRepFeat_SplitShape.hxx>
Public Member Functions | |
| BRepFeat_SplitShape () | |
| Empty constructor. More... | |
| BRepFeat_SplitShape (const TopoDS_Shape &S) | |
| Creates the process with the shape <S>. More... | |
| Standard_Boolean | Add (const TopTools_SequenceOfShape &theEdges) |
| Add splitting edges or wires for whole initial shape withot additional specification edge->face, edge->edge This method puts edge on the corresponding faces from initial shape. More... | |
| void | Init (const TopoDS_Shape &S) |
| Initializes the process on the shape <S>. More... | |
| void | SetCheckInterior (const Standard_Boolean ToCheckInterior) |
| Set the flag of check internal intersections default value is True (to check) More... | |
| void | Add (const TopoDS_Wire &W, const TopoDS_Face &F) |
| Adds the wire <W> on the face <F>. Raises NoSuchObject if <F> does not belong to the original shape. More... | |
| void | Add (const TopoDS_Edge &E, const TopoDS_Face &F) |
| Adds the edge <E> on the face <F>. More... | |
| void | Add (const TopoDS_Compound &Comp, const TopoDS_Face &F) |
| Adds the compound <Comp> on the face <F>. The compound <Comp> must consist of edges lying on the face <F>. If edges are geometrically connected, they must be connected topologically, i.e. they must share common vertices. More... | |
| void | Add (const TopoDS_Edge &E, const TopoDS_Edge &EOn) |
| Adds the edge <E> on the existing edge <EOn>. More... | |
| const TopTools_ListOfShape & | DirectLeft () const |
| Returns the faces which are the left of the projected wires. More... | |
| const TopTools_ListOfShape & | Left () const |
| Returns the faces of the "left" part on the shape. (It is build from DirectLeft, with the faces connected to this set, and so on...). Raises NotDone if IsDone returns <Standard_False>. More... | |
| void | Build () override |
| Builds the cut and the resulting faces and edges as well. More... | |
| virtual Standard_Boolean | IsDeleted (const TopoDS_Shape &S) override |
| Returns true if the shape has been deleted. More... | |
| const TopTools_ListOfShape & | Modified (const TopoDS_Shape &F) override |
| Returns the list of generated Faces. More... | |
 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. More... | |
| operator TopoDS_Shape () | |
| virtual const TopTools_ListOfShape & | Generated (const TopoDS_Shape &S) |
| Returns the list of shapes generated from the shape <S>. More... | |
| Public Member Functions inherited from BRepBuilderAPI_Command | |
| virtual | ~BRepBuilderAPI_Command () |
| virtual Standard_Boolean | IsDone () const |
| void | Check () const |
| Raises NotDone if done is false. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from BRepBuilderAPI_MakeShape | |
| BRepBuilderAPI_MakeShape () | |
| Protected Member Functions inherited from BRepBuilderAPI_Command | |
| BRepBuilderAPI_Command () | |
| Set done to False. More... | |
| void | Done () |
| Set done to true. More... | |
| void | NotDone () |
| Set done to false. More... | |
| Protected Attributes inherited from BRepBuilderAPI_MakeShape | |
| TopoDS_Shape | myShape |
| TopTools_ListOfShape | myGenerated |
Detailed Description
One of the most significant aspects of BRepFeat functionality is the use of local operations as opposed to global ones. In a global operation, you would first construct a form of the type you wanted in your final feature, and then remove matter so that it could fit into your initial basis object. In a local operation, however, you specify the domain of the feature construction with aspects of the shape on which the feature is being created. These semantics are expressed in terms of a member shape of the basis shape from which - or up to which - matter will be added or removed. As a result, local operations make calculations simpler and faster than global operations. In BRepFeat, the semantics of local operations define features constructed from a contour or a part of the basis shape referred to as the tool. In a SplitShape object, wires or edges of a face in the basis shape to be used as a part of the feature are cut out and projected to a plane outside or inside the basis shape. By rebuilding the initial shape incorporating the edges and the faces of the tool, protrusion or depression features can be constructed.
Constructor & Destructor Documentation
◆ BRepFeat_SplitShape() [1/2]
| BRepFeat_SplitShape::BRepFeat_SplitShape | ( | ) |
Empty constructor.
◆ BRepFeat_SplitShape() [2/2]
| BRepFeat_SplitShape::BRepFeat_SplitShape | ( | const TopoDS_Shape & | S | ) |
Creates the process with the shape <S>.
Member Function Documentation
◆ Add() [1/5]
| Standard_Boolean BRepFeat_SplitShape::Add | ( | const TopTools_SequenceOfShape & | theEdges | ) |
Add splitting edges or wires for whole initial shape withot additional specification edge->face, edge->edge This method puts edge on the corresponding faces from initial shape.
◆ Add() [2/5]
| void BRepFeat_SplitShape::Add | ( | const TopoDS_Wire & | W, |
| const TopoDS_Face & | F | ||
| ) |
Adds the wire <W> on the face <F>. Raises NoSuchObject if <F> does not belong to the original shape.
◆ Add() [3/5]
| void BRepFeat_SplitShape::Add | ( | const TopoDS_Edge & | E, |
| const TopoDS_Face & | F | ||
| ) |
Adds the edge <E> on the face <F>.
◆ Add() [4/5]
| void BRepFeat_SplitShape::Add | ( | const TopoDS_Compound & | Comp, |
| const TopoDS_Face & | F | ||
| ) |
Adds the compound <Comp> on the face <F>. The compound <Comp> must consist of edges lying on the face <F>. If edges are geometrically connected, they must be connected topologically, i.e. they must share common vertices.
Raises NoSuchObject if <F> does not belong to the original shape.
◆ Add() [5/5]
| void BRepFeat_SplitShape::Add | ( | const TopoDS_Edge & | E, |
| const TopoDS_Edge & | EOn | ||
| ) |
Adds the edge <E> on the existing edge <EOn>.
◆ Build()
|
overridevirtual |
Builds the cut and the resulting faces and edges as well.
Reimplemented from BRepBuilderAPI_MakeShape.
◆ DirectLeft()
| const TopTools_ListOfShape& BRepFeat_SplitShape::DirectLeft | ( | ) | const |
Returns the faces which are the left of the projected wires.
◆ Init()
| void BRepFeat_SplitShape::Init | ( | const TopoDS_Shape & | S | ) |
Initializes the process on the shape <S>.
◆ IsDeleted()
|
overridevirtual |
Returns true if the shape has been deleted.
Reimplemented from BRepBuilderAPI_MakeShape.
◆ Left()
| const TopTools_ListOfShape& BRepFeat_SplitShape::Left | ( | ) | const |
Returns the faces of the "left" part on the shape. (It is build from DirectLeft, with the faces connected to this set, and so on...). Raises NotDone if IsDone returns <Standard_False>.
◆ Modified()
|
overridevirtual |
Returns the list of generated Faces.
Reimplemented from BRepBuilderAPI_MakeShape.
◆ SetCheckInterior()
| void BRepFeat_SplitShape::SetCheckInterior | ( | const Standard_Boolean | ToCheckInterior | ) |
Set the flag of check internal intersections default value is True (to check)
The documentation for this class was generated from the following file:
