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1 | -- Created on: 1994-07-06 |
2 | -- Created by: Laurent PAINNOT |
3 | -- Copyright (c) 1994-1999 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 | generic class GLocateExtCC2d from Extrema (Curve1 as any; |
23 | Tool1 as any; |
24 | Curve2 as any; |
25 | Tool2 as any) |
26 | |
27 | ---Purpose: It calculates the distance between two curves with |
28 | -- a close point; these distances can be maximum or |
29 | -- minimum. |
30 | |
31 | uses POnCurv2d from Extrema, |
32 | Pnt2d from gp, |
33 | Vec2d from gp, |
34 | HArray1OfPnt2d from TColgp |
35 | |
36 | raises DomainError from Standard, |
37 | NotDone from StdFail |
38 | |
39 | |
40 | class LCCache2d instantiates CurveCache from Extrema (Curve1, Pnt2d from gp, HArray1OfPnt2d from TColgp); |
41 | |
42 | class ELCC2d instantiates GenExtCC from Extrema |
43 | (Curve1, |
44 | Tool1, |
45 | Curve2, |
46 | Tool2, |
47 | LCCache2d, |
48 | HArray1OfPnt2d from TColgp, |
49 | POnCurv2d, |
50 | Pnt2d, |
51 | Vec2d); |
52 | |
53 | |
54 | class LocECC2d instantiates GenLocateExtCC from Extrema |
55 | (Curve1, |
56 | Tool1, |
57 | Curve2, |
58 | Tool2, |
59 | POnCurv2d, |
60 | Pnt2d, |
61 | Vec2d); |
62 | |
63 | |
64 | is |
65 | Create (C1: Curve1; C2: Curve2; U0,V0: Real) |
66 | returns GLocateExtCC2d |
67 | ---Purpose: Calculates the distance with a close point. The |
68 | -- close point is defined by a parameter value on each |
69 | -- curve. |
70 | -- The function F(u,v)=distance(C1(u),C2(v)) has an |
71 | -- extremun when gradient(f)=0. The algorithm searchs |
72 | -- the zero near the close point. |
73 | raises DomainError; |
74 | -- if U0 and V0 are outside the definition ranges of the |
75 | -- curves. |
76 | |
77 | IsDone (me) returns Boolean |
78 | ---Purpose: Returns True if the distance is found. |
79 | is static; |
80 | |
81 | SquareDistance (me) returns Real |
82 | ---Purpose: Returns the value of the extremum square distance. |
83 | raises NotDone from StdFail |
84 | -- if IsDone(me)=False. |
85 | is static; |
86 | |
87 | Point (me; P1,P2: out POnCurv2d) |
88 | ---Purpose: Returns the points of the extremum distance. |
89 | -- P1 is on the first curve, P2 on the second one. |
90 | raises NotDone from StdFail |
91 | -- if IsDone(me)=False. |
92 | is static; |
93 | |
94 | fields |
95 | myDone : Boolean; |
96 | mySqDist: Real; |
97 | myPoint1: POnCurv2d; |
98 | myPoint2: POnCurv2d; |
99 | |
100 | end GLocateExtCC2d; |