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128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
// Created on: 1994-02-03
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// Created by: Jean Marc LACHAUME
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// Copyright (c) 1994-1999 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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#ifndef _Geom2dHatch_FClass2dOfClassifier_HeaderFile
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#define _Geom2dHatch_FClass2dOfClassifier_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Boolean.hxx>
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#include <gp_Lin2d.hxx>
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#include <Standard_Real.hxx>
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#include <TopTrans_CurveTransition.hxx>
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#include <Geom2dHatch_Intersector.hxx>
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#include <Standard_Integer.hxx>
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#include <TopAbs_State.hxx>
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#include <TopAbs_Orientation.hxx>
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class Standard_DomainError;
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class Geom2dAdaptor_Curve;
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class Geom2dHatch_Intersector;
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class gp_Lin2d;
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class Geom2dHatch_FClass2dOfClassifier
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Creates an undefined classifier.
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Standard_EXPORT Geom2dHatch_FClass2dOfClassifier();
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//! Starts a classification process. The point to
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//! classify is the origin of the line <L>. <P> is
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//! the original length of the segment on <L> used to
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//! compute intersections. <Tol> is the tolerance
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//! attached to the line segment in intersections.
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Standard_EXPORT void Reset (const gp_Lin2d& L, const Standard_Real P, const Standard_Real Tol);
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//! Updates the classification process with the edge
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//! <E> from the boundary.
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Standard_EXPORT void Compare (const Geom2dAdaptor_Curve& E, const TopAbs_Orientation Or);
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//! Returns the current value of the parameter.
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Standard_Real Parameter() const;
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//! Returns the intersecting algorithm.
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Geom2dHatch_Intersector& Intersector();
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//! Returns 0 if the last compared edge had no
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//! relevant intersection. Else returns the index of
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//! this intersection in the last intersection
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//! algorithm.
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Standard_Integer ClosestIntersection() const;
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//! Returns the current state of the point.
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TopAbs_State State() const;
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//! Returns the Standard_True if the closest intersection point
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//! represents head or end of the edge. Returns Standard_False
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//! otherwise.
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Standard_Boolean IsHeadOrEnd() const;
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protected:
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private:
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Standard_Boolean myIsSet;
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Standard_Boolean myFirstCompare;
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Standard_Boolean myFirstTrans;
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gp_Lin2d myLin;
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Standard_Real myParam;
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Standard_Real myTolerance;
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TopTrans_CurveTransition myTrans;
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Geom2dHatch_Intersector myIntersector;
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Standard_Integer myClosest;
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TopAbs_State myState;
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Standard_Boolean myIsHeadOrEnd;
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};
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#define TheEdge Geom2dAdaptor_Curve
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#define TheEdge_hxx <Geom2dAdaptor_Curve.hxx>
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#define TheIntersector Geom2dHatch_Intersector
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#define TheIntersector_hxx <Geom2dHatch_Intersector.hxx>
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#define TopClass_Classifier2d Geom2dHatch_FClass2dOfClassifier
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#define TopClass_Classifier2d_hxx <Geom2dHatch_FClass2dOfClassifier.hxx>
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#include <TopClass_Classifier2d.lxx>
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#undef TheEdge
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#undef TheEdge_hxx
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#undef TheIntersector
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#undef TheIntersector_hxx
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#undef TopClass_Classifier2d
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#undef TopClass_Classifier2d_hxx
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#endif // _Geom2dHatch_FClass2dOfClassifier_HeaderFile
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