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1 | -- Created on: 1994-12-09 |
2 | -- Created by: Jacques GOUSSARD |
3 | -- Copyright (c) 1994-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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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 |
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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. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
17 | class NurbsConvert from BRepBuilderAPI inherits ModifyShape from BRepBuilderAPI |
18 | |
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19 | ---Purpose: Conversion of the complete geometry of a shape |
20 | -- (all 3D analytical representation of surfaces and curves) |
21 | -- into NURBS geometry (execpt for Planes). For example, |
22 | -- all curves supporting edges of the basis shape are converted |
23 | -- into BSpline curves, and all surfaces supporting its faces are |
24 | -- converted into BSpline surfaces. |
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25 | |
26 | uses |
27 | |
28 | Shape from TopoDS, |
29 | Face from TopoDS, |
30 | ShapeModification from BRepBuilderAPI, |
31 | ListOfShape from TopTools |
32 | |
33 | is |
34 | |
35 | Create returns NurbsConvert from BRepBuilderAPI; |
36 | ---Purpose: Constructs a framework for converting the geometry of a |
37 | -- shape into NURBS geometry. Use the function Perform |
38 | -- to define the shape to convert. |
39 | Create(S: Shape from TopoDS; |
40 | Copy: Boolean from Standard = Standard_False) |
41 | |
42 | returns NurbsConvert from BRepBuilderAPI; |
43 | ---Purpose: Builds a new shape by converting the geometry of the |
44 | -- shape S into NURBS geometry. Specifically, all curves |
45 | -- supporting edges of S are converted into BSpline |
46 | -- curves, and all surfaces supporting its faces are |
47 | -- converted into BSpline surfaces. |
48 | -- Use the function Shape to access the new shape. |
49 | -- Note: the constructed framework can be reused to |
50 | -- convert other shapes. You specify these with the |
51 | -- function Perform. |
52 | |
53 | Perform(me: in out; S : Shape from TopoDS; |
54 | Copy: Boolean from Standard = Standard_False) |
55 | |
56 | ---Purpose: Builds a new shape by converting the geometry of the |
57 | -- shape S into NURBS geometry. |
58 | -- Specifically, all curves supporting edges of S are |
59 | -- converted into BSpline curves, and all surfaces |
60 | -- supporting its faces are converted into BSpline surfaces. |
61 | -- Use the function Shape to access the new shape. |
62 | -- Note: this framework can be reused to convert other |
63 | -- shapes: you specify them by calling the function Perform again. |
64 | is static; |
65 | |
66 | end NurbsConvert; |