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1 | -- Created on: 1999-09-16 |
2 | -- Created by: Edward AGAPOV |
3 | -- Copyright (c) 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 | |
23 | class ExtPExtS from Extrema |
24 | |
25 | ---Purpose: It calculates all the extremum (minimum and |
26 | -- maximum) distances between a point and a linear |
27 | -- extrusion surface. |
28 | |
29 | uses |
30 | POnSurf from Extrema, |
31 | GenExtPS from Extrema, |
32 | FuncExtPS from Extrema, |
33 | |
34 | HCurve from Adaptor3d, |
35 | SurfacePtr from Adaptor3d, |
36 | SurfaceOfLinearExtrusion from Adaptor3d, |
37 | |
38 | Ax2 from gp, |
39 | Vec from gp, |
40 | Pnt from gp |
41 | |
42 | raises |
43 | NotDone from StdFail, |
44 | OutOfRange |
45 | |
46 | |
47 | is |
48 | Create returns ExtPExtS; |
49 | |
50 | Create (P: Pnt; S: SurfaceOfLinearExtrusion from Adaptor3d; |
51 | Umin, Usup, Vmin, Vsup: Real; |
52 | TolU,TolV: Real) |
53 | returns ExtPExtS; |
54 | ---Purpose: It calculates all the distances between a point |
55 | -- from gp and a Surface. |
56 | |
57 | Create (P: Pnt; S: SurfaceOfLinearExtrusion from Adaptor3d; |
58 | TolU,TolV: Real) |
59 | returns ExtPExtS; |
60 | ---Purpose: It calculates all the distances between a point |
61 | -- from gp and a Surface. |
62 | |
63 | Initialize(me: in out; S: SurfaceOfLinearExtrusion from Adaptor3d; |
64 | Uinf, Usup, Vinf, Vsup: Real; |
65 | TolU, TolV: Real) |
66 | ---Purpose: Initializes the fields of the algorithm. |
67 | is static; |
68 | |
69 | Perform(me: in out; P: Pnt) |
70 | is static; |
71 | |
72 | IsDone (me) returns Boolean |
73 | ---Purpose: Returns True if the distances are found. |
74 | is static; |
75 | |
76 | NbExt (me) returns Integer |
77 | ---Purpose: Returns the number of extremum distances. |
78 | raises NotDone from StdFail |
79 | -- if IsDone(me)=False. |
80 | is static; |
81 | |
82 | SquareDistance (me; N: Integer) returns Real |
83 | ---Purpose: Returns the value of the Nth resulting square distance. |
84 | raises NotDone from StdFail, |
85 | -- if IsDone(me)=False. |
86 | OutOfRange |
87 | -- if N < 1 or N > NbPoints(me). |
88 | is static; |
89 | |
90 | Point (me; N: Integer) returns POnSurf |
91 | ---Purpose: Returns the point of the Nth resulting distance. |
92 | raises NotDone from StdFail, |
93 | -- if IsDone(me)=False. |
94 | OutOfRange |
95 | -- if N < 1 or N > NbPoints(me). |
96 | is static; |
97 | |
98 | --- Private methods |
99 | |
100 | MakePreciser (me; U : in out Real from Standard; |
101 | P : Pnt from gp; |
102 | isMin : Boolean from Standard; |
103 | OrtogSection: Ax2 from gp) is static private; |
104 | |
105 | fields |
106 | myuinf : Real from Standard; |
107 | myusup : Real from Standard; |
108 | mytolu : Real from Standard; |
109 | myvinf : Real from Standard; |
110 | myvsup : Real from Standard; |
111 | mytolv : Real from Standard; |
112 | |
113 | myVRange : Real from Standard; |
114 | |
115 | myF : FuncExtPS from Extrema; |
116 | myC : HCurve from Adaptor3d; |
117 | myS : SurfacePtr from Adaptor3d; |
118 | myDirection : Vec from gp; |
119 | myPosition : Ax2 from gp; |
120 | myExtPS : GenExtPS from Extrema; |
121 | |
122 | myIsAnalyticallyComputable : Boolean from Standard; |
123 | |
124 | myDone : Boolean from Standard; |
125 | myNbExt: Integer from Standard; |
126 | mySqDist: Real from Standard [4]; |
127 | myPoint: POnSurf from Extrema [4]; |
128 | |
129 | end ExtPExtS; |