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occt/src/GeomFill/GeomFill_SweepFunction.hxx
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// Created on: 1997-11-20
// Created by: Philippe MANGIN
// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _GeomFill_SweepFunction_HeaderFile
#define _GeomFill_SweepFunction_HeaderFile
#include <Standard.hxx>
#include <Standard_Type.hxx>
#include <gp_Mat.hxx>
#include <gp_Vec.hxx>
#include <Approx_SweepFunction.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColgp_Array1OfVec.hxx>
#include <TColgp_Array1OfVec2d.hxx>
#include <Standard_Integer.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <GeomAbs_Shape.hxx>
class GeomFill_LocationLaw;
class GeomFill_SectionLaw;
class gp_Pnt;
class GeomFill_SweepFunction;
DEFINE_STANDARD_HANDLE(GeomFill_SweepFunction, Approx_SweepFunction)
//! Function to approximate by SweepApproximation from
//! Approx. To build general sweep Surface.
class GeomFill_SweepFunction : public Approx_SweepFunction
{
public:
Standard_EXPORT GeomFill_SweepFunction(const Handle(GeomFill_SectionLaw)& Section,
const Handle(GeomFill_LocationLaw)& Location,
const Standard_Real FirstParameter,
const Standard_Real FirstParameterOnS,
const Standard_Real RatioParameterOnS);
//! compute the section for v = param
Standard_EXPORT virtual Standard_Boolean D0(const Standard_Real Param,
const Standard_Real First,
const Standard_Real Last,
TColgp_Array1OfPnt& Poles,
TColgp_Array1OfPnt2d& Poles2d,
TColStd_Array1OfReal& Weigths) Standard_OVERRIDE;
//! compute the first derivative in v direction of the
//! section for v = param
Standard_EXPORT virtual Standard_Boolean D1(const Standard_Real Param,
const Standard_Real First,
const Standard_Real Last,
TColgp_Array1OfPnt& Poles,
TColgp_Array1OfVec& DPoles,
TColgp_Array1OfPnt2d& Poles2d,
TColgp_Array1OfVec2d& DPoles2d,
TColStd_Array1OfReal& Weigths,
TColStd_Array1OfReal& DWeigths) Standard_OVERRIDE;
//! compute the second derivative in v direction of the
//! section for v = param
Standard_EXPORT virtual Standard_Boolean D2(const Standard_Real Param,
const Standard_Real First,
const Standard_Real Last,
TColgp_Array1OfPnt& Poles,
TColgp_Array1OfVec& DPoles,
TColgp_Array1OfVec& D2Poles,
TColgp_Array1OfPnt2d& Poles2d,
TColgp_Array1OfVec2d& DPoles2d,
TColgp_Array1OfVec2d& D2Poles2d,
TColStd_Array1OfReal& Weigths,
TColStd_Array1OfReal& DWeigths,
TColStd_Array1OfReal& D2Weigths) Standard_OVERRIDE;
//! get the number of 2d curves to approximate.
Standard_EXPORT virtual Standard_Integer Nb2dCurves() const Standard_OVERRIDE;
//! get the format of a section
Standard_EXPORT virtual void SectionShape(Standard_Integer& NbPoles,
Standard_Integer& NbKnots,
Standard_Integer& Degree) const Standard_OVERRIDE;
//! get the Knots of the section
Standard_EXPORT virtual void Knots(TColStd_Array1OfReal& TKnots) const Standard_OVERRIDE;
//! get the Multplicities of the section
Standard_EXPORT virtual void Mults(TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
//! Returns if the section is rational or not
Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
//! Returns the number of intervals for continuity
//! <S>. May be one if Continuity(me) >= <S>
Standard_EXPORT virtual Standard_Integer NbIntervals(const GeomAbs_Shape S) const
Standard_OVERRIDE;
//! Stores in <T> the parameters bounding the intervals
//! of continuity <S>.
//!
//! The array must provide enough room to accommodate
//! for the parameters. i.e. T.Length() > NbIntervals()
Standard_EXPORT virtual void Intervals(TColStd_Array1OfReal& T,
const GeomAbs_Shape S) const Standard_OVERRIDE;
//! Sets the bounds of the parametric interval on
//! the function
//! This determines the derivatives in these values if the
//! function is not Cn.
Standard_EXPORT virtual void SetInterval(const Standard_Real First,
const Standard_Real Last) Standard_OVERRIDE;
//! Returns the resolutions in the sub-space 2d <Index>
//! This information is usfull to find an good tolerance in
//! 2d approximation.
//! Warning: Used only if Nb2dCurve > 0
Standard_EXPORT virtual void Resolution(const Standard_Integer Index,
const Standard_Real Tol,
Standard_Real& TolU,
Standard_Real& TolV) const Standard_OVERRIDE;
//! Returns the tolerance to reach in approximation
//! to respect
//! BoundTol error at the Boundary
//! AngleTol tangent error at the Boundary (in radian)
//! SurfTol error inside the surface.
Standard_EXPORT virtual void GetTolerance(const Standard_Real BoundTol,
const Standard_Real SurfTol,
const Standard_Real AngleTol,
TColStd_Array1OfReal& Tol3d) const Standard_OVERRIDE;
//! Is usfull, if (me) have to be run numerical
//! algorithme to perform D0, D1 or D2
Standard_EXPORT virtual void SetTolerance(const Standard_Real Tol3d,
const Standard_Real Tol2d) Standard_OVERRIDE;
//! Get the barycentre of Surface. An very poor
//! estimation is sufficient. This information is useful
//! to perform well conditioned rational approximation.
//! Warning: Used only if <me> IsRational
Standard_EXPORT virtual gp_Pnt BarycentreOfSurf() const Standard_OVERRIDE;
//! Returns the length of the maximum section. This
//! information is useful to perform well conditioned rational
//! approximation.
Standard_EXPORT virtual Standard_Real MaximalSection() const Standard_OVERRIDE;
//! Compute the minimal value of weight for each poles
//! of all sections. This information is useful to
//! perform well conditioned rational approximation.
//! Warning: Used only if <me> IsRational
Standard_EXPORT virtual void GetMinimalWeight(TColStd_Array1OfReal& Weigths) const
Standard_OVERRIDE;
DEFINE_STANDARD_RTTIEXT(GeomFill_SweepFunction, Approx_SweepFunction)
protected:
private:
Handle(GeomFill_LocationLaw) myLoc;
Handle(GeomFill_SectionLaw) mySec;
Standard_Real myf;
Standard_Real myfOnS;
Standard_Real myRatio;
gp_Mat M;
gp_Mat DM;
gp_Mat D2M;
gp_Vec V;
gp_Vec DV;
gp_Vec D2V;
};
#endif // _GeomFill_SweepFunction_HeaderFile