1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
-- File: Extrema_GenLocateExtCS.cdl
-- Created: Thu Jan 25 15:26:00 1996
-- Author: Laurent PAINNOT
-- <lpa@nonox>
---Copyright: Matra Datavision 1996
class GenLocateExtCS from Extrema
---Purpose: With two close points it calculates the distance
-- between two surfaces.
-- This distance can be a minimum or a maximum.
uses POnSurf from Extrema,
POnCurv from Extrema,
Pnt from gp,
Surface from Adaptor3d,
Curve from Adaptor3d
raises DomainError from Standard,
NotDone from StdFail
is
Create returns GenLocateExtCS;
Create (C:Curve from Adaptor3d; S: Surface from Adaptor3d;
T, U,V: Real; Tol1,Tol2: Real)
returns GenLocateExtCS
---Purpose: Calculates the distance with two close points.
-- The close points are defined by the parameter values
-- T for C and (U,V) for S.
-- The function F(t,u,v)=distance(C(t),S(u,v))
-- has an extremun when gradient(F)=0. The algorithm searchs
-- a zero near the close points.
raises DomainError;
-- if T,U,V are outside the definition ranges of the
-- curve and surface.
Perform(me: in out; C: Curve from Adaptor3d; S: Surface from Adaptor3d;
T, U,V: Real; Tol1,Tol2: Real)
is static;
IsDone (me) returns Boolean
---Purpose: Returns True if the distance is found.
is static;
SquareDistance (me) returns Real
---Purpose: Returns the value of the extremum square distance.
raises NotDone from StdFail
-- if IsDone(me)=False.
is static;
PointOnCurve (me) returns POnCurv
---Purpose: Returns the point of the extremum distance on C.
---C++: return const&
raises NotDone from StdFail
-- if IsDone(me)=False.
is static;
PointOnSurface (me) returns POnSurf
---Purpose: Returns the point of the extremum distance on S.
---C++: return const&
raises NotDone from StdFail
-- if IsDone(me)=False.
is static;
fields
myDone : Boolean;
mySqDist: Real;
myPoint1: POnCurv from Extrema;
myPoint2: POnSurf from Extrema;
end GenLocateExtCS;
|
