Integration of OCCT 6.5.0 from SVN
[occt.git] / src / BRepBuilderAPI / BRepBuilderAPI_MakeWire.cdl
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7fd59977 1-- File: BRepBuilderAPI_MakeWire.cdl
2-- Created: Thu Jul 8 11:15:02 1993
3-- Author: Remi LEQUETTE
4-- <rle@phylox>
5---Copyright: Matra Datavision 1993
6
7
8
9class MakeWire from BRepBuilderAPI inherits MakeShape from BRepBuilderAPI
10
11 ---Purpose: Describes functions to build wires from edges. A wire can
12 -- be built from any number of edges.
13 -- To build a wire you first initialize the construction, then
14 -- add edges in sequence. An unlimited number of edges
15 -- can be added. The initialization of construction is done with:
16 -- - no edge (an empty wire), or
17 -- - edges of an existing wire, or
18 -- - up to four connectable edges.
19 -- In order to be added to a wire under construction, an
20 -- edge (unless it is the first one) must satisfy the following
21 -- condition: one of its vertices must be geometrically
22 -- coincident with one of the vertices of the wire (provided
23 -- that the highest tolerance factor is assigned to the two
24 -- vertices). It could also be the same vertex.
25 -- - The given edge is shared by the wire if it contains:
26 -- - two vertices, identical to two vertices of the wire
27 -- under construction (a general case of the wire closure), or
28 -- - one vertex, identical to a vertex of the wire under
29 -- construction; the other vertex not being
30 -- geometrically coincident with another vertex of the wire.
31 -- - In other cases, when one of the vertices of the edge
32 -- is simply geometrically coincident with a vertex of the
33 -- wire under construction (provided that the highest
34 -- tolerance factor is assigned to the two vertices), the
35 -- given edge is first copied and the coincident vertex is
36 -- replaced in this new edge, by the coincident vertex of the wire.
37 -- Note: it is possible to build non manifold wires using this construction tool.
38 -- A MakeWire object provides a framework for:
39 -- - initializing the construction of a wire,
40 -- - adding edges to the wire under construction, and
41 -- - consulting the result.
42
43uses
44 Vertex from TopoDS,
45 Edge from TopoDS,
46 Wire from TopoDS,
47 ListOfShape from TopTools,
48 WireError from BRepBuilderAPI,
49 MakeWire from BRepLib
50
51raises
52 NotDone from StdFail
53
54is
55
56 Create
57 ---Purpose: Constructs an empty wire framework, to which edges
58 -- are added using the Add function.
59 -- As soon as the wire contains one edge, it can return
60 -- with the use of the function Wire.
61 -- Warning
62 -- The function Error will return
63 -- BRepBuilderAPI_EmptyWire if it is called before at
64 -- least one edge is added to the wire under construction.
65 returns MakeWire from BRepBuilderAPI;
66
67 ----------------------------------------------
68 -- From edges
69 ----------------------------------------------
70
71 Create(E : Edge from TopoDS)
72 ---Purpose: Make a Wire from an edge.
73 ---Level: Public
74 returns MakeWire from BRepBuilderAPI;
75
76 Create(E1,E2 : Edge from TopoDS)
77 ---Purpose: Make a Wire from two edges.
78 ---Level: Public
79 returns MakeWire from BRepBuilderAPI;
80
81 Create(E1,E2,E3 : Edge from TopoDS)
82 ---Purpose: Make a Wire from three edges.
83 ---Level: Public
84 returns MakeWire from BRepBuilderAPI;
85
86 Create(E1,E2,E3,E4 : Edge from TopoDS)
87 ---Purpose: Make a Wire from four edges.
88 ---Level: Public
89 returns MakeWire from BRepBuilderAPI;
90 ---Purpose: Constructs a wire
91 -- - from the TopoDS_Wire W composed of the edge E, or
92 -- - from edge E, or
93 -- - from two edges E1 and E2, or
94 -- - from three edges E1, E2 and E3, or
95 -- - from four edges E1, E2, E3 and E4.
96 -- Further edges can be added using the function Add.
97 -- Given edges are added in a sequence. Each of them
98 -- must be connectable to the wire under construction,
99 -- and so must satisfy the following condition (unless it is
100 -- the first edge of the wire): one of its vertices must be
101 -- geometrically coincident with one of the vertices of the
102 -- wire (provided that the highest tolerance factor is
103 -- assigned to the two vertices). It could also be the same vertex.
104 -- Warning
105 -- If an edge is not connectable to the wire under
106 -- construction it is not added. The function Error will
107 -- return BRepBuilderAPI_DisconnectedWire, the
108 -- function IsDone will return false and the function Wire
109 -- will raise an error, until a new connectable edge is added.
110
111 ----------------------------------------------
112 -- From wire and edge
113 ----------------------------------------------
114
115 Create(W : Wire from TopoDS)
116 ---Purpose: Make a Wire from a Wire. Usefull for adding later.
117 ---Level: Public
118 returns MakeWire from BRepBuilderAPI;
119
120 Create(W : Wire from TopoDS; E : Edge from TopoDS)
121 ---Purpose: Add an edge to a wire.
122 ---Level: Public
123 returns MakeWire from BRepBuilderAPI;
124
125 ----------------------------------------------
126 -- Auxiliary methods
127 ----------------------------------------------
128
129 Add(me : in out; E : Edge from TopoDS)
130 ---Purpose: Adds the edge E to the wire under construction.
131 -- E must be connectable to the wire under construction, and, unless it
132 -- is the first edge of the wire, must satisfy the following
133 -- condition: one of its vertices must be geometrically coincident
134 -- with one of the vertices of the wire (provided that the highest
135 -- tolerance factor is assigned to the two vertices). It could also
136 -- be the same vertex.
137 -- Warning
138 -- If E is not connectable to the wire under construction it is not
139 -- added. The function Error will return
140 -- BRepBuilderAPI_DisconnectedWire, the function IsDone will return
141 -- false and the function Wire will raise an error, until a new
142 -- connectable edge is added.
143 is static;
144
145 Add(me : in out; W : Wire from TopoDS)
146 ---Purpose: Add the edges of <W> to the current wire.
147 ---Level: Public
148 is static;
149
150 Add(me : in out; L : ListOfShape from TopTools)
151 ---Purpose: Adds the edges of <L> to the current wire. The
152 -- edges are not to be consecutive. But they are to
153 -- be all connected geometrically or topologically.
154 -- If some of them are not connected the Status give
155 -- DisconnectedWire but the "Maker" is Done() and you
156 -- can get the partial result. (ie connected to the
157 -- first edgeof the list <L>)
158 is static;
159
160 ----------------------------------------------
161 -- Results
162 ----------------------------------------------
163
164 IsDone(me) returns Boolean
165 ---Purpose: Returns true if this algorithm contains a valid wire.
166 -- IsDone returns false if:
167 -- - there are no edges in the wire, or
168 -- - the last edge which you tried to add was not connectable.
169 is redefined;
170
171 Error(me) returns WireError from BRepBuilderAPI
172 ---Purpose: Returns the construction status
173 -- - BRepBuilderAPI_WireDone if the wire is built, or
174 -- - another value of the BRepBuilderAPI_WireError
175 -- enumeration indicating why the construction failed.
176 is static;
177
178 Wire(me) returns Wire from TopoDS
179 ---Purpose: Returns the constructed wire; or the part of the wire
180 -- under construction already built.
181 -- Exceptions StdFail_NotDone if a wire is not built.
182 ---C++: return const &
183 ---C++: alias "Standard_EXPORT operator TopoDS_Wire() const;"
184 raises
185 NotDone from StdFail
186 is static;
187
188 Edge(me) returns Edge from TopoDS
189 ---C++: return const &
190 ---Purpose: Returns the last edge added to the wire under construction.
191 -- Warning
192 -- - This edge can be different from the original one (the
193 -- argument of the function Add, for instance,)
194 -- - A null edge is returned if there are no edges in the
195 -- wire under construction, or if the last edge which you
196 -- tried to add was not connectable..
197 raises
198 NotDone from StdFail
199 is static;
200
201 Vertex(me) returns Vertex from TopoDS
202 ---C++: return const &
203 ---Purpose: Returns the last vertex of the last edge added to the
204 -- wire under construction.
205 -- Warning
206 -- A null vertex is returned if there are no edges in the wire
207 -- under construction, or if the last edge which you tried to
208 -- add was not connectableR
209 raises
210 NotDone from StdFail
211 is static;
212
213
214fields
215 myMakeWire : MakeWire from BRepLib;
216
217end MakeWire;