blob: 7c2b3dafba23a8b5a3e85e6938aa7f0c878cce43 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
-- File: BRepOffsetAPI_MakeOffset.cdl
-- Created: Mon Sep 18 13:40:56 1995
-- Author: Bruno DUMORTIER
-- <dub@fuegox>
---Copyright: Matra Datavision 1995
class MakeOffset from BRepOffsetAPI inherits MakeShape from BRepBuilderAPI
---Purpose: Describes algorithms for offsetting wires from a set of
-- wires contained in a planar face.
-- A MakeOffset object provides a framework for:
-- - defining the construction of an offset,
-- - implementing the construction algorithm, and
-- - consulting the result.
uses
Shape from TopoDS,
Wire from TopoDS,
Face from TopoDS,
ListOfShape from TopTools,
OffsetWire from BRepFill,
ListOfOffsetWire from BRepFill,
JoinType from GeomAbs
raises
ConstructionError from Standard
is
Create returns MakeOffset from BRepOffsetAPI;
---Purpose: Constructs an algorithm for creating an empty offset
Create( Spine : Face from TopoDS;
Join : JoinType from GeomAbs = GeomAbs_Arc)
returns MakeOffset from BRepOffsetAPI;
---Purpose: Constructs an algorithm for creating an algorithm
-- to build parallels to the spine Spine
Init( me : in out;
Spine : Face from TopoDS;
Join : JoinType from GeomAbs = GeomAbs_Arc)
---Purpose: Initializes the algorithm to construct parallels to the spine Spine.
-- Join defines the type of parallel generated by the
-- salient vertices of the spine. The default type is
-- GeomAbs_Arc where the vertices generate sections
-- of a circle. At present, this is the only construction type implemented.
is static;
Create( Spine : Wire from TopoDS;
Join : JoinType from GeomAbs = GeomAbs_Arc)
returns MakeOffset from BRepOffsetAPI;
Init( me : in out;
Join : JoinType from GeomAbs = GeomAbs_Arc)
---Purpose: Initialize the evaluation of Offseting.
is static;
AddWire (me : in out;
Spine : Wire from TopoDS)
---Purpose: Initializes the algorithm to construct parallels to the wire Spine.
is static;
Perform (me : in out;
Offset : Real from Standard;
Alt : Real from Standard = 0.0)
---Purpose: Computes a parallel to the spine at distance Offset and
-- at an altitude Alt from the plane of the spine in relation
-- to the normal to the spine.
-- Exceptions: Standard_ConstructionError if the offset is not built.
raises
ConstructionError from Standard
is static;
Build(me : in out)
is redefined;
---Purpose: Builds the resulting shape (redefined from MakeShape).
---Level: Public
Generated (me: in out; S : Shape from TopoDS)
---Purpose: returns a list of the created shapes
-- from the shape <S>.
---C++: return const &
---Level: Public
returns ListOfShape from TopTools
is redefined;
fields
myIsInitialized : Boolean from Standard;
myLastIsLeft : Boolean from Standard;
myJoin : JoinType from GeomAbs;
myFace : Face from TopoDS;
myWires : ListOfShape from TopTools;
myLeft : ListOfOffsetWire from BRepFill;
myRight : ListOfOffsetWire from BRepFill;
end MakeOffset;
|
