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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
114 lines
4.7 KiB
C++
114 lines
4.7 KiB
C++
// Created on: 1991-12-13
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// Created by: Christophe MARION
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <Intrv_Interval.ixx>
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// **-----------**** Other
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// ***-----* Before
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// ***------------* JustBefore
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// ***-----------------* OverlappingAtStart
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// ***--------------------------* JustEnclosingAtEnd
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// ***-------------------------------------* Enclosing
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// ***----* JustOverlappingAtStart
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// ***-------------* Similar
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// ***------------------------* JustEnclosingAtStart
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// ***-* Inside
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// ***------* JustOverlappingAtEnd
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// ***-----------------* OverlappingAtEnd
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// ***--------* JustAfter
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// ***---* After
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//=======================================================================
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//function : Intrv_Interval
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//purpose :
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//=======================================================================
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Intrv_Interval::Intrv_Interval
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() : myStart(RealFirst()), myEnd (RealLast ())
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{
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myTolStart = (Standard_ShortReal)Epsilon(RealFirst());
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myTolEnd = (Standard_ShortReal)Epsilon(RealLast ());
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}
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//=======================================================================
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//function : Intrv_Interval
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//purpose :
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//=======================================================================
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Intrv_Interval::Intrv_Interval
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(const Standard_Real Start, const Standard_Real End) :
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myStart(Start), myEnd (End)
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{
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myTolStart = (Standard_ShortReal)Epsilon(myStart);
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myTolEnd = (Standard_ShortReal)Epsilon(myEnd);
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}
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//=======================================================================
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//function : Intrv_Interval
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//purpose :
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//=======================================================================
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Intrv_Interval::Intrv_Interval
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(const Standard_Real Start, const Standard_ShortReal TolStart,
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const Standard_Real End , const Standard_ShortReal TolEnd) :
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myStart(Start), myEnd (End),
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myTolStart(TolStart),myTolEnd (TolEnd)
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{
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Standard_ShortReal epsStart = (Standard_ShortReal)Epsilon(myStart);
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Standard_ShortReal epsEnd = (Standard_ShortReal)Epsilon(myEnd);
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if (myTolStart < epsStart) myTolStart = epsStart;
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if (myTolEnd < epsEnd ) myTolEnd = epsEnd;
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}
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//=======================================================================
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//function : Position
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//purpose :
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//=======================================================================
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Intrv_Position Intrv_Interval::Position (const Intrv_Interval& Other) const
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{
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Standard_Real mySMin = myStart - myTolStart;
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Standard_Real mySMax = myStart + myTolStart;
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Standard_Real myEMin = myEnd - myTolEnd ;
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Standard_Real myEMax = myEnd + myTolEnd ;
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Standard_Real otSMin = Other.myStart - Other.myTolStart;
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Standard_Real otSMax = Other.myStart + Other.myTolStart;
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Standard_Real otEMin = Other.myEnd - Other.myTolEnd ;
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Standard_Real otEMax = Other.myEnd + Other.myTolEnd ;
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Intrv_Position P;
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if ( mySMax < otSMin ) {
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if ( myEMax < otSMin ) P = Intrv_Before;
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else if ( otSMax >= myEMin ) P = Intrv_JustBefore;
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else if ( myEMax < otEMin ) P = Intrv_OverlappingAtStart;
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else if ( otEMax >= myEMin ) P = Intrv_JustEnclosingAtEnd;
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else P = Intrv_Enclosing;
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}
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else if ( otSMax >= mySMin ) {
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if ( myEMax < otEMin ) P = Intrv_JustOverlappingAtStart;
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else if ( otEMax >= myEMin ) P = Intrv_Similar;
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else P = Intrv_JustEnclosingAtStart;
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}
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else if ( mySMax < otEMin ) {
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if ( myEMax < otEMin ) P = Intrv_Inside;
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else if ( otEMax >= myEMin ) P = Intrv_JustOverlappingAtEnd;
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else P = Intrv_OverlappingAtEnd;
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}
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else if ( otEMax >= mySMin ) P = Intrv_JustAfter;
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else P = Intrv_After;
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return P;
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}
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