// Created on: 1997-06-24 // 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 _Approx_SweepApproximation_HeaderFile #define _Approx_SweepApproximation_HeaderFile #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include class Approx_SweepFunction; class AdvApprox_Cutting; //! Approximation of an Surface S(u,v) //! (and eventually associate 2d Curves) defined //! by section's law. //! //! This surface is defined by a function F(u, v) //! where Ft(u) = F(u, t) is a bspline curve. //! To use this algorithme, you have to implement Ft(u) //! as a derivative class of Approx_SweepFunction. //! This algorithm can be used by blending, sweeping... class Approx_SweepApproximation { public: DEFINE_STANDARD_ALLOC Standard_EXPORT Approx_SweepApproximation(const Handle(Approx_SweepFunction)& Func); //! Perform the Approximation //! [First, Last] : Approx_SweepApproximation.cdl //! Tol3d : Tolerance to surface approximation //! Tol2d : Tolerance used to perform curve approximation //! Normally the 2d curve are approximated with a //! tolerance given by the resolution on support surfaces, //! but if this tolerance is too large Tol2d is used. //! TolAngular : Tolerance (in radian) to control the angle //! between tangents on the section law and //! tangent of iso-v on approximated surface //! Continuity : The continuity in v waiting on the surface //! Degmax : The maximum degree in v required on the surface //! Segmax : The maximum number of span in v required on //! the surface //! Warning : The continuity ci can be obtained only if Ft is Ci Standard_EXPORT void Perform (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol3d, const Standard_Real BoundTol, const Standard_Real Tol2d, const Standard_Real TolAngular, const GeomAbs_Shape Continuity = GeomAbs_C0, const Standard_Integer Degmax = 11, const Standard_Integer Segmax = 50); //! The EvaluatorFunction from AdvApprox; Standard_EXPORT Standard_Integer Eval (const Standard_Real Parameter, const Standard_Integer DerivativeRequest, const Standard_Real First, const Standard_Real Last, Standard_Real& Result); //! returns if we have an result Standard_Boolean IsDone() const; Standard_EXPORT void SurfShape (Standard_Integer& UDegree, Standard_Integer& VDegree, Standard_Integer& NbUPoles, Standard_Integer& NbVPoles, Standard_Integer& NbUKnots, Standard_Integer& NbVKnots) const; Standard_EXPORT void Surface (TColgp_Array2OfPnt& TPoles, TColStd_Array2OfReal& TWeights, TColStd_Array1OfReal& TUKnots, TColStd_Array1OfReal& TVKnots, TColStd_Array1OfInteger& TUMults, TColStd_Array1OfInteger& TVMults) const; Standard_Integer UDegree() const; Standard_Integer VDegree() const; const TColgp_Array2OfPnt& SurfPoles() const; const TColStd_Array2OfReal& SurfWeights() const; const TColStd_Array1OfReal& SurfUKnots() const; const TColStd_Array1OfReal& SurfVKnots() const; const TColStd_Array1OfInteger& SurfUMults() const; const TColStd_Array1OfInteger& SurfVMults() const; //! returns the maximum error in the surface approximation. Standard_EXPORT Standard_Real MaxErrorOnSurf() const; //! returns the average error in the surface approximation. Standard_EXPORT Standard_Real AverageErrorOnSurf() const; Standard_Integer NbCurves2d() const; Standard_EXPORT void Curves2dShape (Standard_Integer& Degree, Standard_Integer& NbPoles, Standard_Integer& NbKnots) const; Standard_EXPORT void Curve2d (const Standard_Integer Index, TColgp_Array1OfPnt2d& TPoles, TColStd_Array1OfReal& TKnots, TColStd_Array1OfInteger& TMults) const; Standard_Integer Curves2dDegree() const; const TColgp_Array1OfPnt2d& Curve2dPoles (const Standard_Integer Index) const; const TColStd_Array1OfReal& Curves2dKnots() const; const TColStd_Array1OfInteger& Curves2dMults() const; //! returns the maximum error of the //! 2d curve approximation. Standard_EXPORT Standard_Real Max2dError (const Standard_Integer Index) const; //! returns the average error of the //! 2d curve approximation. Standard_EXPORT Standard_Real Average2dError (const Standard_Integer Index) const; //! returns the maximum 3d error of the //! 2d curve approximation on the Surface. Standard_EXPORT Standard_Real TolCurveOnSurf (const Standard_Integer Index) const; //! display information on approximation. Standard_EXPORT void Dump (Standard_OStream& o) const; protected: private: Standard_EXPORT void Approximation (const Handle(TColStd_HArray1OfReal)& OneDTol, const Handle(TColStd_HArray1OfReal)& TwoDTol, const Handle(TColStd_HArray1OfReal)& ThreeDTol, const Standard_Real BounTol, const Standard_Real First, const Standard_Real Last, const GeomAbs_Shape Continuity, const Standard_Integer Degmax, const Standard_Integer Segmax, const AdvApprox_EvaluatorFunction& TheApproxFunction, const AdvApprox_Cutting& TheCuttingTool); Standard_EXPORT Standard_Boolean D0 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, Standard_Real& Result); Standard_EXPORT Standard_Boolean D1 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, Standard_Real& Result); Standard_EXPORT Standard_Boolean D2 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, Standard_Real& Result); Handle(Approx_SweepFunction) myFunc; Standard_Boolean done; Standard_Integer Num1DSS; Standard_Integer Num2DSS; Standard_Integer Num3DSS; Standard_Integer udeg; Standard_Integer vdeg; Standard_Integer deg2d; Handle(TColgp_HArray2OfPnt) tabPoles; Handle(TColStd_HArray2OfReal) tabWeights; Handle(TColStd_HArray1OfReal) tabUKnots; Handle(TColStd_HArray1OfReal) tabVKnots; Handle(TColStd_HArray1OfReal) tab2dKnots; Handle(TColStd_HArray1OfInteger) tabUMults; Handle(TColStd_HArray1OfInteger) tabVMults; Handle(TColStd_HArray1OfInteger) tab2dMults; TColgp_SequenceOfArray1OfPnt2d seqPoles2d; Handle(TColStd_HArray1OfReal) MError1d; Handle(TColStd_HArray1OfReal) tab2dError; Handle(TColStd_HArray1OfReal) MError3d; Handle(TColStd_HArray1OfReal) AError1d; Handle(TColStd_HArray1OfReal) Ave2dError; Handle(TColStd_HArray1OfReal) AError3d; Handle(Approx_HArray1OfGTrsf2d) AAffin; Handle(TColStd_HArray1OfReal) COnSurfErr; gp_Vec Translation; Handle(TColgp_HArray1OfPnt) myPoles; Handle(TColgp_HArray1OfPnt2d) myPoles2d; Handle(TColStd_HArray1OfReal) myWeigths; Handle(TColgp_HArray1OfVec) myDPoles; Handle(TColgp_HArray1OfVec) myD2Poles; Handle(TColgp_HArray1OfVec2d) myDPoles2d; Handle(TColgp_HArray1OfVec2d) myD2Poles2d; Handle(TColStd_HArray1OfReal) myDWeigths; Handle(TColStd_HArray1OfReal) myD2Weigths; Standard_Integer myOrder; Standard_Real myParam; Standard_Real first; Standard_Real last; }; #include #endif // _Approx_SweepApproximation_HeaderFile