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1 | -- Created on: 1996-01-25 |
2 | -- Created by: Laurent PAINNOT |
3 | -- Copyright (c) 1996-1999 Matra Datavision |
4 | -- Copyright (c) 1999-2012 OPEN CASCADE SAS |
5 | -- |
6 | -- The content of this file is subject to the Open CASCADE Technology Public |
7 | -- License Version 6.5 (the "License"). You may not use the content of this file |
8 | -- except in compliance with the License. Please obtain a copy of the License |
9 | -- at http://www.opencascade.org and read it completely before using this file. |
10 | -- |
11 | -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
12 | -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
13 | -- |
14 | -- The Original Code and all software distributed under the License is |
15 | -- distributed on an "AS IS" basis, without warranty of any kind, and the |
16 | -- Initial Developer hereby disclaims all such warranties, including without |
17 | -- limitation, any warranties of merchantability, fitness for a particular |
18 | -- purpose or non-infringement. Please see the License for the specific terms |
19 | -- and conditions governing the rights and limitations under the License. |
20 | |
7fd59977 |
21 | |
22 | class GenLocateExtCS from Extrema |
23 | |
24 | ---Purpose: With two close points it calculates the distance |
25 | -- between two surfaces. |
26 | -- This distance can be a minimum or a maximum. |
27 | |
28 | uses POnSurf from Extrema, |
29 | POnCurv from Extrema, |
30 | Pnt from gp, |
31 | Surface from Adaptor3d, |
32 | Curve from Adaptor3d |
33 | |
34 | raises DomainError from Standard, |
35 | NotDone from StdFail |
36 | |
37 | |
38 | is |
39 | Create returns GenLocateExtCS; |
40 | |
41 | Create (C:Curve from Adaptor3d; S: Surface from Adaptor3d; |
42 | T, U,V: Real; Tol1,Tol2: Real) |
43 | returns GenLocateExtCS |
44 | ---Purpose: Calculates the distance with two close points. |
45 | -- The close points are defined by the parameter values |
46 | -- T for C and (U,V) for S. |
47 | -- The function F(t,u,v)=distance(C(t),S(u,v)) |
48 | -- has an extremun when gradient(F)=0. The algorithm searchs |
49 | -- a zero near the close points. |
50 | raises DomainError; |
51 | -- if T,U,V are outside the definition ranges of the |
52 | -- curve and surface. |
53 | |
54 | Perform(me: in out; C: Curve from Adaptor3d; S: Surface from Adaptor3d; |
55 | T, U,V: Real; Tol1,Tol2: Real) |
56 | is static; |
57 | |
58 | |
59 | IsDone (me) returns Boolean |
60 | ---Purpose: Returns True if the distance is found. |
61 | is static; |
62 | |
63 | SquareDistance (me) returns Real |
64 | ---Purpose: Returns the value of the extremum square distance. |
65 | raises NotDone from StdFail |
66 | -- if IsDone(me)=False. |
67 | is static; |
68 | |
69 | PointOnCurve (me) returns POnCurv |
70 | ---Purpose: Returns the point of the extremum distance on C. |
71 | ---C++: return const& |
72 | raises NotDone from StdFail |
73 | -- if IsDone(me)=False. |
74 | is static; |
75 | |
76 | |
77 | PointOnSurface (me) returns POnSurf |
78 | ---Purpose: Returns the point of the extremum distance on S. |
79 | ---C++: return const& |
80 | raises NotDone from StdFail |
81 | -- if IsDone(me)=False. |
82 | is static; |
83 | |
84 | fields |
85 | myDone : Boolean; |
86 | mySqDist: Real; |
87 | myPoint1: POnCurv from Extrema; |
88 | myPoint2: POnSurf from Extrema; |
89 | |
90 | end GenLocateExtCS; |