include/opencascade/HLRAlgo_EdgeIterator.hxx

0001 // Created on: 1993-01-11
0002 // Created by: Christophe MARION
0003 // Copyright (c) 1993-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _HLRAlgo_EdgeIterator_HeaderFile
0018 #define _HLRAlgo_EdgeIterator_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 class HLRAlgo_EdgeStatus;
0025
0026
0027
0028 class HLRAlgo_EdgeIterator
0029 {
0030 public:
0031
0032   DEFINE_STANDARD_ALLOC
0033
0034
0035   //! Iterator  on the  visible or  hidden  parts of  an
0036   //! edge.
0037   Standard_EXPORT HLRAlgo_EdgeIterator();
0038
0039   Standard_EXPORT void InitHidden (HLRAlgo_EdgeStatus& status);
0040
0041     Standard_Boolean MoreHidden() const;
0042
0043   Standard_EXPORT void NextHidden();
0044
0045   //! Returns the bounds and the tolerances
0046   //! of the current Hidden Interval
0047     void Hidden (Standard_Real& Start, Standard_ShortReal& TolStart, Standard_Real& End, Standard_ShortReal& TolEnd) const;
0048
0049     void InitVisible (HLRAlgo_EdgeStatus& status);
0050
0051     Standard_Boolean MoreVisible() const;
0052
0053     void NextVisible();
0054
0055   //! Returns the bounds and the tolerances
0056   //! of the current Visible Interval
0057     void Visible (Standard_Real& Start, Standard_ShortReal& TolStart, Standard_Real& End, Standard_ShortReal& TolEnd);
0058
0059
0060
0061
0062 protected:
0063
0064
0065
0066
0067
0068 private:
0069
0070
0071
0072   Standard_Integer myNbVis;
0073   Standard_Integer myNbHid;
0074   HLRAlgo_EdgeStatus* EVis;
0075   HLRAlgo_EdgeStatus* EHid;
0076   Standard_Integer iVis;
0077   Standard_Integer iHid;
0078   Standard_Real myHidStart;
0079   Standard_Real myHidEnd;
0080   Standard_ShortReal myHidTolStart;
0081   Standard_ShortReal myHidTolEnd;
0082
0083
0084 };
0085
0086
0087 #include <HLRAlgo_EdgeIterator.lxx>
0088
0089
0090
0091
0092
0093 #endif // _HLRAlgo_EdgeIterator_HeaderFile