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1 | -- Created on: 1992-08-11 |
2 | -- Created by: Remi LEQUETTE |
3 | -- Copyright (c) 1992-1999 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 |
9 | -- under the terms of the GNU Lesser General Public 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. |
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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 EdgeFaceTransition from TopCnx |
18 | |
19 | ---Purpose: TheEdgeFaceTransition is an algorithm to compute |
20 | -- the cumulated transition for interferences on an |
21 | -- edge. |
22 | |
23 | uses |
24 | |
25 | Boolean from Standard, |
26 | Real from Standard, |
27 | Integer from Standard, |
28 | |
29 | Pnt from gp, |
30 | Dir from gp, |
31 | |
32 | State from TopAbs, |
33 | Orientation from TopAbs, |
34 | |
35 | CurveTransition from TopTrans |
36 | |
37 | is |
38 | Create returns EdgeFaceTransition from TopCnx; |
39 | ---Purpose: Creates an empty algorithm. |
40 | |
41 | Reset( me : in out; |
42 | Tgt : Dir from gp; -- Tangent at this point |
43 | Norm : Dir from gp; -- Normal vector at this point |
44 | Curv : Real from Standard) -- Curvature at this point |
45 | ---Purpose: Initialize the algorithm with the local |
46 | -- description of the edge. |
47 | is static; |
48 | |
49 | Reset( me : in out; |
50 | Tgt : in Dir from gp) -- Tangent at this point |
51 | ---Purpose: Initialize the algorithm with a linear Edge. |
52 | is static; |
53 | |
54 | AddInterference(me : in out; |
55 | Tole : Real from Standard; -- Cosine tolerance |
56 | Tang : Dir from gp; -- Tangent on curve for this point |
57 | Norm : Dir from gp; -- Normal vector at this point |
58 | Curv : Real from Standard; -- Curvature at this point |
59 | Or : Orientation from TopAbs; -- Orientation on the curve |
60 | Tr : Orientation from TopAbs; -- Transition |
61 | BTr : Orientation from TopAbs) -- Boundary transition |
62 | ---Purpose: Add a curve element to the boundary. Or is the |
63 | -- orientation of the interference on the boundary |
64 | -- curve. Tr is the transition of the interference. |
65 | -- BTr is the boundary transition of the |
66 | -- interference. |
67 | is static; |
68 | |
69 | Transition(me) returns Orientation from TopAbs |
70 | ---Purpose: Returns the current cumulated transition. |
71 | is static; |
72 | |
73 | BoundaryTransition(me) returns Orientation from TopAbs |
74 | ---Purpose: Returns the current cumulated BoundaryTransition. |
75 | is static; |
76 | |
77 | fields |
78 | myCurveTransition : CurveTransition from TopTrans; |
79 | nbBoundForward : Integer from Standard; |
80 | nbBoundReversed : Integer from Standard; |
81 | |
82 | end EdgeFaceTransition; |