1 -- Created on: 1995-09-18
2 -- Created by: Bruno DUMORTIER
3 -- Copyright (c) 1995-1999 Matra Datavision
4 -- Copyright (c) 1999-2014 OPEN CASCADE SAS
6 -- This file is part of Open CASCADE Technology software library.
8 -- This library is free software; you can redistribute it and/or modify it under
9 -- the terms of the GNU Lesser General Public License version 2.1 as published
10 -- by the Free Software Foundation, with special exception defined in the file
11 -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 -- distribution for complete text of the license and disclaimer of any warranty.
14 -- Alternatively, this file may be used under the terms of Open CASCADE
15 -- commercial license or contractual agreement.
17 class MakeEvolved from BRepOffsetAPI inherits MakeShape from BRepBuilderAPI
19 ---Purpose: Describes functions to build evolved shapes.
20 -- An evolved shape is built from a planar spine (face or
21 -- wire) and a profile (wire). The evolved shape is the
22 -- unlooped sweep (pipe) of the profile along the spine.
23 -- Self-intersections are removed.
24 -- A MakeEvolved object provides a framework for:
25 -- - defining the construction of an evolved shape,
26 -- - implementing the construction algorithm, and
27 -- - consulting the result.
28 -- Computes an Evolved by
29 -- 1 - sweeping a profil along a spine.
30 -- 2 - removing the self-intersections.
32 -- The profile is defined in a Referential R. The position of
33 -- the profile at the current point of the spine is given by
34 -- confusing R and the local referential given by ( D0, D1
35 -- and the normal of the Spine)
37 -- If the Boolean <AxeProf> is true, R is O,X,Y,Z
38 -- else R is defined as the local refential at the nearest
39 -- point of the profil to the spine.
41 -- if <Solid> is TRUE the Shape result is completed to be a
42 -- solid or a compound of solids.
47 Evolved from BRepFill,
48 ListOfShape from TopTools,
55 Create returns MakeEvolved from BRepOffsetAPI;
57 Create( Spine : Wire from TopoDS;
58 Profil : Wire from TopoDS;
59 Join : JoinType from GeomAbs = GeomAbs_Arc;
60 AxeProf : Boolean from Standard = Standard_True;
61 Solid : Boolean from Standard = Standard_False;
62 ProfOnSpine: Boolean from Standard = Standard_False;
63 Tol : Real from Standard = 0.0000001)
66 returns MakeEvolved from BRepOffsetAPI;
68 Create( Spine : Face from TopoDS;
69 Profil : Wire from TopoDS;
70 Join : JoinType from GeomAbs = GeomAbs_Arc;
71 AxeProf : Boolean from Standard = Standard_True;
72 Solid : Boolean from Standard = Standard_False;
73 ProfOnSpine: Boolean from Standard = Standard_False;
74 Tol : Real from Standard = 0.0000001)
75 ---Purpose: These constructors construct an evolved shape by sweeping the profile
76 -- Profile along the spine Spine.
77 -- The profile is defined in a coordinate system R.
78 -- The coordinate system is determined by AxeProf:
79 -- - if AxeProf is true, R is the global coordinate system,
80 -- - if AxeProf is false, R is computed so that:
81 -- - its origin is given by the point on the spine which is
82 -- closest to the profile,
83 -- - its "X Axis" is given by the tangent to the spine at this point, and
84 -- - its "Z Axis" is the normal to the plane which contains the spine.
85 -- The position of the profile at the current point of the
86 -- spine is given by making R coincident with the local
87 -- coordinate system given by the current point, the
88 -- tangent vector and the normal to the spine.
89 -- Join defines the type of pipe generated by the salient
90 -- vertices of the spine. The default type is GeomAbs_Arc
91 -- where the vertices generate revolved pipes about the
92 -- axis passing along the vertex and the normal to the
93 -- plane of the spine. At present, this is the only
94 -- construction type implemented.
95 returns MakeEvolved from BRepOffsetAPI;
97 Evolved(me) returns Evolved from BRepFill
98 ---C++: return const &
104 ---Purpose: Builds the resulting shape (redefined from MakeShape).
107 GeneratedShapes (me ;
108 SpineShape : Shape from TopoDS;
109 ProfShape : Shape from TopoDS)
110 ---Purpose: Returns the shapes created from a subshape
111 -- <SpineShape> of the spine and a subshape
112 -- <ProfShape> on the profile.
113 ---C++ : return const &
114 returns ListOfShape from TopTools
117 Top (me) returns Shape from TopoDS
118 ---Purpose: Return the face Top if <Solid> is True in the constructor.
119 ---C++ : return const &
122 Bottom (me) returns Shape from TopoDS
123 ---Purpose: Return the face Bottom if <Solid> is True in the constructor.
124 ---C++ : return const &
128 myEvolved : Evolved from BRepFill;