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175 lines
6.7 KiB
C++
175 lines
6.7 KiB
C++
// Created on: 1998-08-17
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// Created by: Philippe MANGIN
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// Copyright (c) 1998-1999 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 _GeomFill_EvolvedSection_HeaderFile
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#define _GeomFill_EvolvedSection_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <GeomFill_SectionLaw.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <TColgp_Array1OfVec.hxx>
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#include <Standard_Integer.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <GeomAbs_Shape.hxx>
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class Geom_Curve;
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class Law_Function;
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class Geom_BSplineCurve;
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class Geom_BSplineSurface;
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class gp_Pnt;
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class GeomFill_EvolvedSection;
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DEFINE_STANDARD_HANDLE(GeomFill_EvolvedSection, GeomFill_SectionLaw)
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//! Define an Constant Section Law
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class GeomFill_EvolvedSection : public GeomFill_SectionLaw
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{
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public:
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//! Make an SectionLaw with a Curve and a real Law.
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Standard_EXPORT GeomFill_EvolvedSection(const Handle(Geom_Curve)& C, const Handle(Law_Function)& L);
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//! compute the section for v = param
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Standard_EXPORT virtual Standard_Boolean D0 (const Standard_Real Param, TColgp_Array1OfPnt& Poles, TColStd_Array1OfReal& Weigths) Standard_OVERRIDE;
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//! compute the first derivative in v direction of the
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//! section for v = param
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//! Warning : It used only for C1 or C2 approximation
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Standard_EXPORT virtual Standard_Boolean D1 (const Standard_Real Param, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths) Standard_OVERRIDE;
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//! compute the second derivative in v direction of the
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//! section for v = param
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//! Warning : It used only for C2 approximation
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Standard_EXPORT virtual Standard_Boolean D2 (const Standard_Real Param, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColgp_Array1OfVec& D2Poles, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths, TColStd_Array1OfReal& D2Weigths) Standard_OVERRIDE;
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//! give if possible an bspline Surface, like iso-v are the
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//! section. If it is not possible this methode have to
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//! get an Null Surface. Is it the default implementation.
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Standard_EXPORT virtual Handle(Geom_BSplineSurface) BSplineSurface() const Standard_OVERRIDE;
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//! get the format of an section
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Standard_EXPORT virtual void SectionShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree) const Standard_OVERRIDE;
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//! get the Knots of the section
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Standard_EXPORT virtual void Knots (TColStd_Array1OfReal& TKnots) const Standard_OVERRIDE;
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//! get the Multplicities of the section
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Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
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//! Returns if the sections are rational or not
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Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
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//! Returns if the sections are periodic or not
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Standard_EXPORT virtual Standard_Boolean IsUPeriodic() const Standard_OVERRIDE;
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//! Returns if the law isperiodic or not
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Standard_EXPORT virtual Standard_Boolean IsVPeriodic() const Standard_OVERRIDE;
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//! Returns the number of intervals for continuity
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//! <S>.
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//! May be one if Continuity(me) >= <S>
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Standard_EXPORT virtual Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
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//! Stores in <T> the parameters bounding the intervals
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//! of continuity <S>.
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//!
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//! The array must provide enough room to accommodate
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//! for the parameters. i.e. T.Length() > NbIntervals()
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Standard_EXPORT virtual void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
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//! Sets the bounds of the parametric interval on
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//! the function
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//! This determines the derivatives in these values if the
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//! function is not Cn.
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Standard_EXPORT virtual void SetInterval (const Standard_Real First, const Standard_Real Last) Standard_OVERRIDE;
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//! Gets the bounds of the parametric interval on
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//! the function
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Standard_EXPORT virtual void GetInterval (Standard_Real& First, Standard_Real& Last) const Standard_OVERRIDE;
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//! Gets the bounds of the function parametric domain.
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//! Warning: This domain it is not modified by the
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//! SetValue method
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Standard_EXPORT virtual void GetDomain (Standard_Real& First, Standard_Real& Last) const Standard_OVERRIDE;
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//! Returns the tolerances associated at each poles to
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//! reach in approximation, to satisfy: BoundTol error
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//! at the Boundary AngleTol tangent error at the
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//! Boundary (in radian) SurfTol error inside the
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//! surface.
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Standard_EXPORT virtual void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal& Tol3d) const Standard_OVERRIDE;
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//! Get the barycentre of Surface.
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//! An very poor estimation is sufficient.
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//! This information is useful to perform well
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//! conditioned rational approximation.
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//! Warning: Used only if <me> IsRational
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Standard_EXPORT virtual gp_Pnt BarycentreOfSurf() const Standard_OVERRIDE;
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//! Returns the length of the greater section. This
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//! information is useful to G1's control.
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//! Warning: With an little value, approximation can be slower.
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Standard_EXPORT virtual Standard_Real MaximalSection() const Standard_OVERRIDE;
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//! Compute the minimal value of weight for each poles
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//! in all sections.
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//! This information is useful to control error
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//! in rational approximation.
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//! Warning: Used only if <me> IsRational
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Standard_EXPORT virtual void GetMinimalWeight (TColStd_Array1OfReal& Weigths) const Standard_OVERRIDE;
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//! return True If the Law isConstant
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Standard_EXPORT virtual Standard_Boolean IsConstant (Standard_Real& Error) const Standard_OVERRIDE;
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//! Return the constant Section if <me> IsConstant.
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Standard_EXPORT virtual Handle(Geom_Curve) ConstantSection() const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(GeomFill_EvolvedSection,GeomFill_SectionLaw)
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protected:
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private:
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Standard_Real First;
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Standard_Real Last;
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Handle(Geom_Curve) mySection;
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Handle(Law_Function) myLaw;
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Handle(Law_Function) TLaw;
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Handle(Geom_BSplineCurve) myCurve;
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};
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#endif // _GeomFill_EvolvedSection_HeaderFile
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