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1 | // Created on: 1991-12-13 |
2 | // Created by: Christophe MARION |
3 | // Copyright (c) 1991-1999 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 | #include <Intrv_Interval.ixx> |
23 | |
24 | // **-----------**** Other |
25 | // ***-----* Before |
26 | // ***------------* JustBefore |
27 | // ***-----------------* OverlappingAtStart |
28 | // ***--------------------------* JustEnclosingAtEnd |
29 | // ***-------------------------------------* Enclosing |
30 | // ***----* JustOverlappingAtStart |
31 | // ***-------------* Similar |
32 | // ***------------------------* JustEnclosingAtStart |
33 | // ***-* Inside |
34 | // ***------* JustOverlappingAtEnd |
35 | // ***-----------------* OverlappingAtEnd |
36 | // ***--------* JustAfter |
37 | // ***---* After |
38 | |
39 | //======================================================================= |
40 | //function : Intrv_Interval |
41 | //purpose : |
42 | //======================================================================= |
43 | |
44 | Intrv_Interval::Intrv_Interval |
45 | () : myStart(RealFirst()), myEnd (RealLast ()) |
46 | { |
47 | myTolStart = (Standard_ShortReal)Epsilon(RealFirst()); |
48 | myTolEnd = (Standard_ShortReal)Epsilon(RealLast ()); |
49 | } |
50 | |
51 | //======================================================================= |
52 | //function : Intrv_Interval |
53 | //purpose : |
54 | //======================================================================= |
55 | |
56 | Intrv_Interval::Intrv_Interval |
57 | (const Standard_Real Start, const Standard_Real End) : |
58 | myStart(Start), myEnd (End) |
59 | { |
60 | myTolStart = (Standard_ShortReal)Epsilon(myStart); |
61 | myTolEnd = (Standard_ShortReal)Epsilon(myEnd); |
62 | } |
63 | |
64 | //======================================================================= |
65 | //function : Intrv_Interval |
66 | //purpose : |
67 | //======================================================================= |
68 | |
69 | Intrv_Interval::Intrv_Interval |
70 | (const Standard_Real Start, const Standard_ShortReal TolStart, |
71 | const Standard_Real End , const Standard_ShortReal TolEnd) : |
72 | myStart(Start), myEnd (End), |
73 | myTolStart(TolStart),myTolEnd (TolEnd) |
74 | { |
75 | Standard_ShortReal epsStart = (Standard_ShortReal)Epsilon(myStart); |
76 | Standard_ShortReal epsEnd = (Standard_ShortReal)Epsilon(myEnd); |
77 | if (myTolStart < epsStart) myTolStart = epsStart; |
78 | if (myTolEnd < epsEnd ) myTolEnd = epsEnd; |
79 | } |
80 | |
81 | //======================================================================= |
82 | //function : Position |
83 | //purpose : |
84 | //======================================================================= |
85 | |
86 | Intrv_Position Intrv_Interval::Position (const Intrv_Interval& Other) const |
87 | { |
88 | Standard_Real mySMin = myStart - myTolStart; |
89 | Standard_Real mySMax = myStart + myTolStart; |
90 | Standard_Real myEMin = myEnd - myTolEnd ; |
91 | Standard_Real myEMax = myEnd + myTolEnd ; |
92 | Standard_Real otSMin = Other.myStart - Other.myTolStart; |
93 | Standard_Real otSMax = Other.myStart + Other.myTolStart; |
94 | Standard_Real otEMin = Other.myEnd - Other.myTolEnd ; |
95 | Standard_Real otEMax = Other.myEnd + Other.myTolEnd ; |
96 | Intrv_Position P; |
97 | if ( mySMax < otSMin ) { |
98 | if ( myEMax < otSMin ) P = Intrv_Before; |
99 | else if ( otSMax >= myEMin ) P = Intrv_JustBefore; |
100 | else if ( myEMax < otEMin ) P = Intrv_OverlappingAtStart; |
101 | else if ( otEMax >= myEMin ) P = Intrv_JustEnclosingAtEnd; |
102 | else P = Intrv_Enclosing; |
103 | } |
104 | else if ( otSMax >= mySMin ) { |
105 | if ( myEMax < otEMin ) P = Intrv_JustOverlappingAtStart; |
106 | else if ( otEMax >= myEMin ) P = Intrv_Similar; |
107 | else P = Intrv_JustEnclosingAtStart; |
108 | } |
109 | else if ( mySMax < otEMin ) { |
110 | if ( myEMax < otEMin ) P = Intrv_Inside; |
111 | else if ( otEMax >= myEMin ) P = Intrv_JustOverlappingAtEnd; |
112 | else P = Intrv_OverlappingAtEnd; |
113 | } |
114 | else if ( otEMax >= mySMin ) P = Intrv_JustAfter; |
115 | else P = Intrv_After; |
116 | return P; |
117 | } |
118 | |