// Created on: 1995-01-27 // Created by: Jacques GOUSSARD // Copyright (c) 1995-1999 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 _GeomInt_TheComputeLineBezierOfWLApprox_HeaderFile #define _GeomInt_TheComputeLineBezierOfWLApprox_HeaderFile #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include class GeomInt_TheMultiLineOfWLApprox; class GeomInt_TheMultiLineToolOfWLApprox; class GeomInt_MyGradientOfTheComputeLineBezierOfWLApprox; class GeomInt_ParLeastSquareOfMyGradientOfTheComputeLineBezierOfWLApprox; class GeomInt_ResConstraintOfMyGradientOfTheComputeLineBezierOfWLApprox; class GeomInt_ParFunctionOfMyGradientOfTheComputeLineBezierOfWLApprox; class GeomInt_Gradient_BFGSOfMyGradientOfTheComputeLineBezierOfWLApprox; class AppParCurves_MultiCurve; class AppParCurves_MultiBSpCurve; class GeomInt_TheComputeLineBezierOfWLApprox { public: DEFINE_STANDARD_ALLOC //! The MultiLine will be approximated until tolerances //! will be reached. //! The approximation will be done from degreemin to degreemax //! with a cutting if the corresponding boolean is True. //! If is True, the computation will be done with //! no iteration at all. Standard_EXPORT GeomInt_TheComputeLineBezierOfWLApprox(const GeomInt_TheMultiLineOfWLApprox& Line, const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-3, const Standard_Real Tolerance2d = 1.0e-6, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Approx_ParametrizationType parametrization = Approx_ChordLength, const Standard_Boolean Squares = Standard_False); //! The MultiLine will be approximated until tolerances //! will be reached. //! The approximation will be done from degreemin to degreemax //! with a cutting if the corresponding boolean is True. //! If is True, the computation will be done with //! no iteration at all. Standard_EXPORT GeomInt_TheComputeLineBezierOfWLApprox(const GeomInt_TheMultiLineOfWLApprox& Line, const math_Vector& Parameters, const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Standard_Boolean Squares = Standard_False); //! Initializes the fields of the algorithm. Standard_EXPORT GeomInt_TheComputeLineBezierOfWLApprox(const math_Vector& Parameters, const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Standard_Boolean Squares = Standard_False); //! Initializes the fields of the algorithm. Standard_EXPORT GeomInt_TheComputeLineBezierOfWLApprox(const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Approx_ParametrizationType parametrization = Approx_ChordLength, const Standard_Boolean Squares = Standard_False); //! Initializes the fields of the algorithm. Standard_EXPORT void Init (const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Approx_ParametrizationType parametrization = Approx_ChordLength, const Standard_Boolean Squares = Standard_False); //! runs the algorithm after having initialized the fields. Standard_EXPORT void Perform (const GeomInt_TheMultiLineOfWLApprox& Line); //! changes the degrees of the approximation. Standard_EXPORT void SetDegrees (const Standard_Integer degreemin, const Standard_Integer degreemax); //! Changes the tolerances of the approximation. Standard_EXPORT void SetTolerances (const Standard_Real Tolerance3d, const Standard_Real Tolerance2d); //! changes the first and the last constraint points. Standard_EXPORT void SetConstraints (const AppParCurves_Constraint firstC, const AppParCurves_Constraint lastC); //! returns False if at a moment of the approximation, //! the status NoApproximation has been sent by the user //! when more points were needed. Standard_EXPORT Standard_Boolean IsAllApproximated() const; //! returns False if the status NoPointsAdded has been sent. Standard_EXPORT Standard_Boolean IsToleranceReached() const; //! returns the tolerances 2d and 3d of the MultiCurve. Standard_EXPORT void Error (const Standard_Integer Index, Standard_Real& tol3d, Standard_Real& tol2d) const; //! Returns the number of MultiCurve doing the approximation //! of the MultiLine. Standard_EXPORT Standard_Integer NbMultiCurves() const; //! returns the result of the approximation. Standard_EXPORT const AppParCurves_MultiCurve& Value (const Standard_Integer Index = 1) const; //! returns the result of the approximation. Standard_EXPORT AppParCurves_MultiCurve& ChangeValue (const Standard_Integer Index = 1); //! returns the result of the approximation. Standard_EXPORT const AppParCurves_MultiBSpCurve& SplineValue(); //! returns the type of parametrization Standard_EXPORT Approx_ParametrizationType Parametrization () const; //! returns the new parameters of the approximation //! corresponding to the points of the multicurve . Standard_EXPORT const TColStd_Array1OfReal& Parameters (const Standard_Integer Index = 1) const; protected: private: //! is internally used in the algorithm. Standard_EXPORT Standard_Boolean Compute (const GeomInt_TheMultiLineOfWLApprox& Line, const Standard_Integer fpt, const Standard_Integer lpt, math_Vector& Para, Standard_Real& TheTol3d, Standard_Real& TheTol2d, Standard_Integer& indbad); //! is internally used in the algorithm. Standard_EXPORT Standard_Boolean ComputeCurve (const GeomInt_TheMultiLineOfWLApprox& Line, const Standard_Integer firspt, const Standard_Integer lastpt); //! computes new parameters between firstP and lastP. Standard_EXPORT void Parameters (const GeomInt_TheMultiLineOfWLApprox& Line, const Standard_Integer firstP, const Standard_Integer LastP, math_Vector& TheParameters) const; Standard_EXPORT Standard_Real SearchFirstLambda (const GeomInt_TheMultiLineOfWLApprox& Line, const math_Vector& Para, const math_Vector& V, const Standard_Integer index) const; Standard_EXPORT Standard_Real SearchLastLambda (const GeomInt_TheMultiLineOfWLApprox& Line, const math_Vector& Para, const math_Vector& V, const Standard_Integer index) const; Standard_EXPORT void FirstTangencyVector (const GeomInt_TheMultiLineOfWLApprox& Line, const Standard_Integer index, math_Vector& V) const; Standard_EXPORT void LastTangencyVector (const GeomInt_TheMultiLineOfWLApprox& Line, const Standard_Integer index, math_Vector& V) const; AppParCurves_SequenceOfMultiCurve myMultiCurves; AppParCurves_MultiCurve TheMultiCurve; AppParCurves_MultiBSpCurve myspline; Standard_Boolean alldone; Standard_Boolean tolreached; Approx_ParametrizationType Par; Handle(TColStd_HArray1OfReal) myParameters; Handle(TColStd_HArray1OfReal) myfirstParam; Approx_SequenceOfHArray1OfReal myPar; TColStd_SequenceOfReal Tolers3d; TColStd_SequenceOfReal Tolers2d; Handle(AppParCurves_HArray1OfConstraintCouple) myConstraints; Standard_Integer mydegremin; Standard_Integer mydegremax; Standard_Real mytol3d; Standard_Real mytol2d; Standard_Real currenttol3d; Standard_Real currenttol2d; Standard_Boolean mycut; Standard_Boolean mysquares; Standard_Integer myitermax; AppParCurves_Constraint myfirstC; AppParCurves_Constraint mylastC; Standard_Integer myMultiLineNb; Standard_Boolean myIsClear; }; #endif // _GeomInt_TheComputeLineBezierOfWLApprox_HeaderFile