Describes functions to build wires from edges. A wire can be built from any number of edges. To build a wire you first initialize the construction, then add edges in sequence. An unlimited number of edges can be added. The initialization of construction is done with: More...
#include <BRepBuilderAPI_MakeWire.hxx>
Public Member Functions | |
| BRepBuilderAPI_MakeWire () | |
| Constructs an empty wire framework, to which edges are added using the Add function. As soon as the wire contains one edge, it can return with the use of the function Wire. Warning The function Error will return BRepBuilderAPI_EmptyWire if it is called before at least one edge is added to the wire under construction. More... | |
| BRepBuilderAPI_MakeWire (const TopoDS_Edge &E) | |
| Make a Wire from an edge. More... | |
| BRepBuilderAPI_MakeWire (const TopoDS_Edge &E1, const TopoDS_Edge &E2) | |
| Make a Wire from two edges. More... | |
| BRepBuilderAPI_MakeWire (const TopoDS_Edge &E1, const TopoDS_Edge &E2, const TopoDS_Edge &E3) | |
| Make a Wire from three edges. More... | |
| BRepBuilderAPI_MakeWire (const TopoDS_Edge &E1, const TopoDS_Edge &E2, const TopoDS_Edge &E3, const TopoDS_Edge &E4) | |
| Make a Wire from four edges. Constructs a wire. More... | |
| BRepBuilderAPI_MakeWire (const TopoDS_Wire &W) | |
| Make a Wire from a Wire. Usefull for adding later. More... | |
| BRepBuilderAPI_MakeWire (const TopoDS_Wire &W, const TopoDS_Edge &E) | |
| Add an edge to a wire. More... | |
| void | Add (const TopoDS_Edge &E) |
| Adds the edge E to the wire under construction. E must be connectable to the wire under construction, and, unless it is the first edge of the wire, must satisfy the following condition: one of its vertices must be geometrically coincident with one of the vertices of the wire (provided that the highest tolerance factor is assigned to the two vertices). It could also be the same vertex. Warning If E is not connectable to the wire under construction it is not added. The function Error will return BRepBuilderAPI_DisconnectedWire, the function IsDone will return false and the function Wire will raise an error, until a new connectable edge is added. More... | |
| void | Add (const TopoDS_Wire &W) |
| Add the edges of <W> to the current wire. More... | |
| void | Add (const TopTools_ListOfShape &L) |
| Adds the edges of <L> to the current wire. The edges are not to be consecutive. But they are to be all connected geometrically or topologically. If some of them are not connected the Status give DisconnectedWire but the "Maker" is Done() and you can get the partial result. (ie connected to the first edgeof the list <L>) More... | |
| virtual Standard_Boolean | IsDone () const override |
| Returns true if this algorithm contains a valid wire. IsDone returns false if: More... | |
| BRepBuilderAPI_WireError | Error () const |
| Returns the construction status. More... | |
| const TopoDS_Wire & | Wire () |
| Returns the constructed wire; or the part of the wire under construction already built. Exceptions StdFail_NotDone if a wire is not built. More... | |
| operator TopoDS_Wire () | |
| const TopoDS_Edge & | Edge () const |
| Returns the last edge added to the wire under construction. Warning. More... | |
| const TopoDS_Vertex & | Vertex () const |
| Returns the last vertex of the last edge added to the wire under construction. Warning A null vertex is returned if there are no edges in the wire under construction, or if the last edge which you tried to add was not connectableR. More... | |
 Public Member Functions inherited from BRepBuilderAPI_MakeShape | |
| virtual void | Build () |
| This is called by Shape(). It does nothing but may be redefined. More... | |
| 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... | |
| virtual const TopTools_ListOfShape & | Modified (const TopoDS_Shape &S) |
| Returns the list of shapes modified from the shape <S>. More... | |
| virtual Standard_Boolean | IsDeleted (const TopoDS_Shape &S) |
| Returns true if the shape S has been deleted. More... | |
| Public Member Functions inherited from BRepBuilderAPI_Command | |
| virtual | ~BRepBuilderAPI_Command () |
| 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
Describes functions to build wires from edges. A wire can be built from any number of edges. To build a wire you first initialize the construction, then add edges in sequence. An unlimited number of edges can be added. The initialization of construction is done with:
- no edge (an empty wire), or
- edges of an existing wire, or
- up to four connectable edges. In order to be added to a wire under construction, an edge (unless it is the first one) must satisfy the following condition: one of its vertices must be geometrically coincident with one of the vertices of the wire (provided that the highest tolerance factor is assigned to the two vertices). It could also be the same vertex.
- The given edge is shared by the wire if it contains:
- two vertices, identical to two vertices of the wire under construction (a general case of the wire closure), or
- one vertex, identical to a vertex of the wire under construction; the other vertex not being geometrically coincident with another vertex of the wire.
- In other cases, when one of the vertices of the edge is simply geometrically coincident with a vertex of the wire under construction (provided that the highest tolerance factor is assigned to the two vertices), the given edge is first copied and the coincident vertex is replaced in this new edge, by the coincident vertex of the wire. Note: it is possible to build non manifold wires using this construction tool. A MakeWire object provides a framework for:
- initializing the construction of a wire,
- adding edges to the wire under construction, and
- consulting the result.
Constructor & Destructor Documentation
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | ) |
Constructs an empty wire framework, to which edges are added using the Add function. As soon as the wire contains one edge, it can return with the use of the function Wire. Warning The function Error will return BRepBuilderAPI_EmptyWire if it is called before at least one edge is added to the wire under construction.
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | const TopoDS_Edge & | E | ) |
Make a Wire from an edge.
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | const TopoDS_Edge & | E1, |
| const TopoDS_Edge & | E2 | ||
| ) |
Make a Wire from two edges.
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | const TopoDS_Edge & | E1, |
| const TopoDS_Edge & | E2, | ||
| const TopoDS_Edge & | E3 | ||
| ) |
Make a Wire from three edges.
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | const TopoDS_Edge & | E1, |
| const TopoDS_Edge & | E2, | ||
| const TopoDS_Edge & | E3, | ||
| const TopoDS_Edge & | E4 | ||
| ) |
Make a Wire from four edges. Constructs a wire.
- from the TopoDS_Wire W composed of the edge E, or
- from edge E, or
- from two edges E1 and E2, or
- from three edges E1, E2 and E3, or
- from four edges E1, E2, E3 and E4. Further edges can be added using the function Add. Given edges are added in a sequence. Each of them must be connectable to the wire under construction, and so must satisfy the following condition (unless it is the first edge of the wire): one of its vertices must be geometrically coincident with one of the vertices of the wire (provided that the highest tolerance factor is assigned to the two vertices). It could also be the same vertex. Warning If an edge is not connectable to the wire under construction it is not added. The function Error will return BRepBuilderAPI_DisconnectedWire, the function IsDone will return false and the function Wire will raise an error, until a new connectable edge is added.
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | const TopoDS_Wire & | W | ) |
Make a Wire from a Wire. Usefull for adding later.
| BRepBuilderAPI_MakeWire::BRepBuilderAPI_MakeWire | ( | const TopoDS_Wire & | W, |
| const TopoDS_Edge & | E | ||
| ) |
Add an edge to a wire.
Member Function Documentation
| void BRepBuilderAPI_MakeWire::Add | ( | const TopoDS_Edge & | E | ) |
Adds the edge E to the wire under construction. E must be connectable to the wire under construction, and, unless it is the first edge of the wire, must satisfy the following condition: one of its vertices must be geometrically coincident with one of the vertices of the wire (provided that the highest tolerance factor is assigned to the two vertices). It could also be the same vertex. Warning If E is not connectable to the wire under construction it is not added. The function Error will return BRepBuilderAPI_DisconnectedWire, the function IsDone will return false and the function Wire will raise an error, until a new connectable edge is added.
| void BRepBuilderAPI_MakeWire::Add | ( | const TopoDS_Wire & | W | ) |
Add the edges of <W> to the current wire.
| void BRepBuilderAPI_MakeWire::Add | ( | const TopTools_ListOfShape & | L | ) |
Adds the edges of <L> to the current wire. The edges are not to be consecutive. But they are to be all connected geometrically or topologically. If some of them are not connected the Status give DisconnectedWire but the "Maker" is Done() and you can get the partial result. (ie connected to the first edgeof the list <L>)
| const TopoDS_Edge& BRepBuilderAPI_MakeWire::Edge | ( | ) | const |
Returns the last edge added to the wire under construction. Warning.
- This edge can be different from the original one (the argument of the function Add, for instance,)
- A null edge is returned if there are no edges in the wire under construction, or if the last edge which you tried to add was not connectable..
| BRepBuilderAPI_WireError BRepBuilderAPI_MakeWire::Error | ( | ) | const |
Returns the construction status.
- BRepBuilderAPI_WireDone if the wire is built, or
- another value of the BRepBuilderAPI_WireError enumeration indicating why the construction failed.
|
overridevirtual |
Returns true if this algorithm contains a valid wire. IsDone returns false if:
- there are no edges in the wire, or
- the last edge which you tried to add was not connectable.
Reimplemented from BRepBuilderAPI_Command.
| BRepBuilderAPI_MakeWire::operator TopoDS_Wire | ( | ) |
| const TopoDS_Vertex& BRepBuilderAPI_MakeWire::Vertex | ( | ) | const |
Returns the last vertex of the last edge added to the wire under construction. Warning A null vertex is returned if there are no edges in the wire under construction, or if the last edge which you tried to add was not connectableR.
| const TopoDS_Wire& BRepBuilderAPI_MakeWire::Wire | ( | ) |
Returns the constructed wire; or the part of the wire under construction already built. Exceptions StdFail_NotDone if a wire is not built.
The documentation for this class was generated from the following file:
