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2052b04e5b
Add choosing the intersect point taking into account the tangentCross when prev UEdge and next UEdge has more than one intersect points; Add exact correction of edge tolerance (it fix problems with edge tolerance on Linux); Add exact check of edge tolerance in testcase
198 lines
7.2 KiB
C++
198 lines
7.2 KiB
C++
// Created on: 1995-06-02
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// Created by: Xavier BENVENISTE
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// Copyright (c) 1995-1999 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 _Approx_SameParameter_HeaderFile
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#define _Approx_SameParameter_HeaderFile
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#include <Adaptor3d_CurveOnSurface.hxx>
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#include <Adaptor3d_Surface.hxx>
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class Geom_Curve;
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class Geom2d_Curve;
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class Geom_Surface;
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//! Approximation of a PCurve on a surface to make its
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//! parameter be the same that the parameter of a given 3d
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//! reference curve.
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class Approx_SameParameter
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Warning: the C3D and C2D must have the same parametric domain.
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Standard_EXPORT Approx_SameParameter(const Handle(Geom_Curve)& C3D,
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const Handle(Geom2d_Curve)& C2D,
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const Handle(Geom_Surface)& S,
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const Standard_Real Tol);
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//! Warning: the C3D and C2D must have the same parametric domain.
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Standard_EXPORT Approx_SameParameter(const Handle(Adaptor3d_Curve)& C3D,
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const Handle(Geom2d_Curve)& C2D,
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const Handle(Adaptor3d_Surface)& S,
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const Standard_Real Tol);
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//! Warning: the C3D and C2D must have the same parametric domain.
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Standard_EXPORT Approx_SameParameter(const Handle(Adaptor3d_Curve)& C3D,
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const Handle(Adaptor2d_Curve2d)& C2D,
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const Handle(Adaptor3d_Surface)& S,
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const Standard_Real Tol);
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//!@Returns .false. if calculations failed,
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//! .true. if calculations succeed
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Standard_Boolean IsDone() const
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{
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return myDone;
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}
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//!@Returns tolerance (maximal distance) between 3d curve
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//! and curve on surface, generated by 2d curve and surface.
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Standard_Real TolReached() const
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{
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return myTolReached;
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}
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//! Tells whether the original data had already the same
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//! parameter up to the tolerance : in that case nothing
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//! is done.
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Standard_Boolean IsSameParameter() const
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{
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return mySameParameter;
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}
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//! Returns the 2D curve that has the same parameter as
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//! the 3D curve once evaluated on the surface up to the
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//! specified tolerance.
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Handle(Geom2d_Curve) Curve2d() const
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{
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return myCurve2d;
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}
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//! Returns the 3D curve that has the same parameter as
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//! the 3D curve once evaluated on the surface up to the
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//! specified tolerance.
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Handle(Adaptor3d_Curve) Curve3d() const
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{
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return myC3d;
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}
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//! Returns the 3D curve on surface that has the same parameter as
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//! the 3D curve up to the specified tolerance.
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Handle(Adaptor3d_CurveOnSurface) CurveOnSurface() const
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{
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return myCurveOnSurface;
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}
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private:
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//! Internal data structure to unify access to the most actively used data.
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//! This structure is not intended to be class field since
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//! a lot of memory is used in intermediate computations.
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struct Approx_SameParameter_Data
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{
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Adaptor3d_CurveOnSurface myCOnS; // Curve on surface.
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Standard_Integer myNbPnt; // Number of points.
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Standard_Real *myPC3d; // Parameters on 3d curve.
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Standard_Real *myPC2d; // Parameters on 2d curve.
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// Second data arrays. Used in loop over poles.
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Standard_Real *myNewPC3d; // Parameters on 3d curve.
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Standard_Real *myNewPC2d; // Parameters on 2d curve.
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// Parameters ranges.
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Standard_Real myC3dPF; // Curve 3d Parameter First.
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Standard_Real myC3dPL; // Curve 3d Parameter Last.
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Standard_Real myC2dPF; // Curve 2d Parameter First.
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Standard_Real myC2dPL; // Curve 2d Parameter Last.
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Standard_Real myTol; // Working tolerance.
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// Swap data arrays and update number of points.
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void Swap(const Standard_Integer theNewNbPoints)
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{
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myNbPnt = theNewNbPoints;
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Standard_Real * temp;
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// 3-D
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temp = myPC3d;
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myPC3d = myNewPC3d;
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myNewPC3d = temp;
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// 2-D
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temp = myPC2d;
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myPC2d = myNewPC2d;
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myNewPC2d = temp;
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}
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};
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Approx_SameParameter(const Approx_SameParameter &);
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Approx_SameParameter& operator=(const Approx_SameParameter &);
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//! Computes the pcurve (internal use only).
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Standard_EXPORT void Build (const Standard_Real Tol);
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//! Computes initial point distribution.
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Standard_Boolean BuildInitialDistribution(Approx_SameParameter_Data &theData) const;
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//! Increases initial number of samples in case of the C0 continuity.
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//! Return new number of points and corresponding data arrays.
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//@return true if new number of samples is good and false otherwise.
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Standard_Boolean IncreaseInitialNbSamples(Approx_SameParameter_Data &theData) const;
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//! Computes tangents on boundary points.
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//@return true if tangents are not null and false otherwise.
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Standard_Boolean ComputeTangents(const Adaptor3d_CurveOnSurface & theCOnS,
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Standard_Real &theFirstTangent,
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Standard_Real &theLastTangent) const;
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//! Method to check same parameter state
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//! and build dependency between 2d and 3d curves.
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//@return true if 2d and 3d curves have same parameter state and false otherwise.
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Standard_Boolean CheckSameParameter(Approx_SameParameter_Data &theData,
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Standard_Real &theSqDist) const;
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//! Computes interpolated values.
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//!@Returns .false. if computations failed;
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Standard_Boolean Interpolate(const Approx_SameParameter_Data & theData,
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const Standard_Real aTangFirst,
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const Standard_Real aTangLast,
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TColStd_Array1OfReal & thePoles,
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TColStd_Array1OfReal & theFlatKnots) const;
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//! Increases number of poles in poles loop.
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//@return true if poles is changed and false otherwise.
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Standard_Boolean IncreaseNbPoles(const TColStd_Array1OfReal & thePoles,
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const TColStd_Array1OfReal & theFlatKnots,
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Approx_SameParameter_Data & theData,
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Standard_Real &theBestSqTol) const;
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static const Standard_Integer myNbSamples = 22; // To be consistent with "checkshape".
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static const Standard_Integer myMaxArraySize = 1000;
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const Standard_Real myDeltaMin; // Initialization is allowed only for integral types.
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Standard_Boolean mySameParameter;
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Standard_Boolean myDone;
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Standard_Real myTolReached;
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Handle(Geom2d_Curve) myCurve2d;
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Handle(Adaptor2d_Curve2d) myHCurve2d;
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Handle(Adaptor3d_Curve) myC3d;
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Handle(Adaptor3d_Surface) mySurf;
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Handle(Adaptor3d_CurveOnSurface) myCurveOnSurface;
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};
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#endif // _Approx_SameParameter_HeaderFile
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