include/opencascade/BRepClass_FClass2dOfFClassifier.hxx

0001 // Created on: 1992-11-18
0002 // Created by: Remi LEQUETTE
0003 // Copyright (c) 1992-1999 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 _BRepClass_FClass2dOfFClassifier_HeaderFile
0018 #define _BRepClass_FClass2dOfFClassifier_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022
0023 #include <TopTrans_CurveTransition.hxx>
0024 #include <BRepClass_Intersector.hxx>
0025 #include <Standard_Integer.hxx>
0026 #include <TopAbs_State.hxx>
0027 #include <TopAbs_Orientation.hxx>
0028 class Standard_DomainError;
0029 class BRepClass_Edge;
0030 class BRepClass_Intersector;
0031 class gp_Lin2d;
0032
0033
0034
0035 class BRepClass_FClass2dOfFClassifier
0036 {
0037 public:
0038
0039   DEFINE_STANDARD_ALLOC
0040
0041
0042   //! Creates an undefined classifier.
0043   Standard_EXPORT BRepClass_FClass2dOfFClassifier();
0044
0045   //! Starts  a  classification process.   The  point to
0046   //! classify is the origin of  the  line <L>.  <P>  is
0047   //! the original length of the segment on <L>  used to
0048   //! compute  intersections.   <Tol> is the   tolerance
0049   //! attached to the line segment in intersections.
0050   Standard_EXPORT void Reset (const gp_Lin2d& L, const Standard_Real P, const Standard_Real Tol);
0051
0052   //! Updates  the classification process with  the edge
0053   //! <E> from the boundary.
0054   Standard_EXPORT void Compare (const BRepClass_Edge& E, const TopAbs_Orientation Or);
0055
0056   //! Returns the current value of the parameter.
0057     Standard_Real Parameter() const;
0058
0059   //! Returns the intersecting algorithm.
0060     BRepClass_Intersector& Intersector();
0061
0062   //! Returns  0  if  the   last  compared   edge had no
0063   //! relevant intersection.  Else returns  the index of
0064   //! this   intersection  in the    last   intersection
0065   //! algorithm.
0066     Standard_Integer ClosestIntersection() const;
0067
0068   //! Returns the current state of the point.
0069     TopAbs_State State() const;
0070
0071   //! Returns the Standard_True if the closest intersection point
0072   //! represents head or end of the edge. Returns Standard_False
0073   //! otherwise.
0074     Standard_Boolean IsHeadOrEnd() const;
0075
0076
0077
0078
0079 protected:
0080
0081
0082
0083
0084
0085 private:
0086
0087
0088
0089   Standard_Boolean myIsSet;
0090   Standard_Boolean myFirstCompare;
0091   Standard_Boolean myFirstTrans;
0092   gp_Lin2d myLin;
0093   Standard_Real myParam;
0094   Standard_Real myTolerance;
0095   TopTrans_CurveTransition myTrans;
0096   BRepClass_Intersector myIntersector;
0097   Standard_Integer myClosest;
0098   TopAbs_State myState;
0099   Standard_Boolean myIsHeadOrEnd;
0100
0101
0102 };
0103
0104 #define TheEdge BRepClass_Edge
0105 #define TheEdge_hxx <BRepClass_Edge.hxx>
0106 #define TheIntersector BRepClass_Intersector
0107 #define TheIntersector_hxx <BRepClass_Intersector.hxx>
0108 #define TopClass_Classifier2d BRepClass_FClass2dOfFClassifier
0109 #define TopClass_Classifier2d_hxx <BRepClass_FClass2dOfFClassifier.hxx>
0110
0111 #include <TopClass_Classifier2d.lxx>
0112
0113 #undef TheEdge
0114 #undef TheEdge_hxx
0115 #undef TheIntersector
0116 #undef TheIntersector_hxx
0117 #undef TopClass_Classifier2d
0118 #undef TopClass_Classifier2d_hxx
0119
0120
0121
0122
0123 #endif // _BRepClass_FClass2dOfFClassifier_HeaderFile