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159 lines
4.4 KiB
C++
159 lines
4.4 KiB
C++
// Created on: 1994-02-07
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// Created by: Modelistation
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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 _BRepIntCurveSurface_Inter_HeaderFile
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#define _BRepIntCurveSurface_Inter_HeaderFile
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#include <GeomAdaptor_Curve.hxx>
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#include <IntCurveSurface_HInter.hxx>
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#include <TopTools_SequenceOfShape.hxx>
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#include <Bnd_HArray1OfBox.hxx>
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#include <IntCurveSurface_TransitionOnCurve.hxx>
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class BRepTopAdaptor_TopolTool;
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class TopoDS_Shape;
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class GeomAdaptor_Curve;
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class gp_Lin;
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class IntCurveSurface_IntersectionPoint;
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class gp_Pnt;
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class TopoDS_Face;
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//! Computes the intersection between a face and a
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//! curve. To intersect one curve with shape method
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//! Init(Shape, curve, tTol) should be used. To
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//! intersect a few curves with specified shape it is
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//! necessary to load shape one time using method
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//! Load(shape, tol) and find intersection points for
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//! each curve using method Init(curve). For
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//! iteration by intersection points method More() and
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//! Next() should be used.
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//!
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//! Example:
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//! Inter.Load(shape, tol);
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//! for( i =1; i <= nbCurves;i++)
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//! {
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//! Inter.Init(curve);
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//! for( ;Inter.More(); Inter.Next())
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//! {
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//! .......
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//! }
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//! }
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class BRepIntCurveSurface_Inter
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Empty constructor;
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Standard_EXPORT BRepIntCurveSurface_Inter();
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//! Load the Shape, the curve and initialize the
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//! tolerance used for the classification.
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Standard_EXPORT void Init (const TopoDS_Shape& theShape, const GeomAdaptor_Curve& theCurve, const Standard_Real theTol);
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//! Load the Shape, the curve and initialize the
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//! tolerance used for the classification.
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Standard_EXPORT void Init (const TopoDS_Shape& theShape, const gp_Lin& theLine, const Standard_Real theTol);
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//! Load the Shape, and initialize the
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//! tolerance used for the classification.
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Standard_EXPORT void Load (const TopoDS_Shape& theShape, const Standard_Real theTol);
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//! Method to find intersections of specified curve with loaded shape.
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Standard_EXPORT void Init (const GeomAdaptor_Curve& theCurve);
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//! returns True if there is a current face.
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Standard_EXPORT Standard_Boolean More() const;
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//! Sets the next intersection point to check.
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Standard_EXPORT void Next();
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//! returns the current Intersection point.
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Standard_EXPORT IntCurveSurface_IntersectionPoint Point() const;
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//! returns the current geometric Point
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Standard_EXPORT const gp_Pnt& Pnt() const;
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//! returns the U parameter of the current point
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//! on the current face.
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Standard_EXPORT Standard_Real U() const;
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//! returns the V parameter of the current point
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//! on the current face.
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Standard_EXPORT Standard_Real V() const;
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//! returns the parameter of the current point
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//! on the curve.
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Standard_EXPORT Standard_Real W() const;
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//! returns the current state (IN or ON)
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Standard_EXPORT TopAbs_State State() const;
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//! returns the transition of the line on the surface (IN or OUT or UNKNOWN)
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Standard_EXPORT IntCurveSurface_TransitionOnCurve Transition() const;
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//! returns the current face.
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Standard_EXPORT const TopoDS_Face& Face() const;
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protected:
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//! Internal function
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Standard_EXPORT void Find();
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//! Method chec found intersection point
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Standard_EXPORT Standard_Boolean FindPoint();
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//! Method to clear fields of class
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Standard_EXPORT void Clear();
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private:
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Standard_Real myTolerance;
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Handle(GeomAdaptor_Curve) myCurve;
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IntCurveSurface_HInter myIntcs;
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Standard_Integer myCurrentindex;
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Standard_Integer myCurrentnbpoints;
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Handle(BRepTopAdaptor_TopolTool) myFastClass;
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TopAbs_State myCurrentstate;
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Standard_Real myCurrentU;
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Standard_Real myCurrentV;
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Bnd_Box myCurveBox;
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Standard_Integer myIndFace;
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TopTools_SequenceOfShape myFaces;
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Handle(Bnd_HArray1OfBox) myFaceBoxes;
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};
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#endif // _BRepIntCurveSurface_Inter_HeaderFile
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