| b311480e |
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 | |
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