// Created on: 1993-01-09 // Created by: CKY / Contract Toubro-Larsen ( Kiran ) // Copyright (c) 1993-1999 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 _IGESGeom_SplineCurve_HeaderFile #define _IGESGeom_SplineCurve_HeaderFile #include #include #include #include #include #include #include class IGESGeom_SplineCurve; DEFINE_STANDARD_HANDLE(IGESGeom_SplineCurve, IGESData_IGESEntity) //! Defines IGESSplineCurve, Type <112> Form <0> //! in package IGESGeom //! The parametric spline is a sequence of parametric //! polynomial segments. The curve could be of the type //! Linear, Quadratic, Cubic, Wilson-Fowler, Modified //! Wilson-Fowler, B-Spline. The N polynomial segments //! are delimited by the break points T(1), T(2), T(3), //! ..., T(N+1). class IGESGeom_SplineCurve : public IGESData_IGESEntity { public: Standard_EXPORT IGESGeom_SplineCurve(); //! This method is used to set the fields of the class //! SplineCurve //! - aType : Spline Type //! 1 = Linear //! 2 = Quadratic //! 3 = Cubic //! 4 = Wilson-Fowler //! 5 = Modified Wilson-Fowler //! 6 = B Spline //! - aDegree : Degree of continuity w.r.t. arc length //! - nbDimensions : Number of dimensions //! 2 = Planar //! 3 = Non-planar //! - allBreakPoints : Array of break points //! - allXPolynomials : X coordinate polynomials of segments //! - allYPolynomials : Y coordinate polynomials of segments //! - allZPolynomials : Z coordinate polynomials of segments //! - allXValues : Values of 1st, 2nd, 3rd derivatives of //! X polynomials at the terminate point //! and values of X at terminate point //! - allYValues : Values of 1st, 2nd, 3rd derivatives of //! Y polynomials at the terminate point //! and values of Y at terminate point //! - allZvalues : Values of 1st, 2nd, 3rd derivatives of //! Z polynomials at the terminate point //! and values of Z at terminate point //! raises exception if allXPolynomials, allYPolynomials //! & allZPolynomials are not of same size OR allXValues, allYValues //! & allZValues are not of size 4 Standard_EXPORT void Init (const Standard_Integer aType, const Standard_Integer aDegree, const Standard_Integer nbDimensions, const Handle(TColStd_HArray1OfReal)& allBreakPoints, const Handle(TColStd_HArray2OfReal)& allXPolynomials, const Handle(TColStd_HArray2OfReal)& allYPolynomials, const Handle(TColStd_HArray2OfReal)& allZPolynomials, const Handle(TColStd_HArray1OfReal)& allXvalues, const Handle(TColStd_HArray1OfReal)& allYvalues, const Handle(TColStd_HArray1OfReal)& allZvalues); //! returns the type of Spline curve Standard_EXPORT Standard_Integer SplineType() const; //! returns the degree of the curve Standard_EXPORT Standard_Integer Degree() const; //! returns the number of dimensions //! 2 = Planar //! 3 = Non-planar Standard_EXPORT Standard_Integer NbDimensions() const; //! returns the number of segments Standard_EXPORT Standard_Integer NbSegments() const; //! returns breakpoint of piecewise polynomial //! raises exception if Index <= 0 or Index > NbSegments() + 1 Standard_EXPORT Standard_Real BreakPoint (const Standard_Integer Index) const; //! returns X coordinate polynomial for segment referred to by Index //! raises exception if Index <= 0 or Index > NbSegments() Standard_EXPORT void XCoordPolynomial (const Standard_Integer Index, Standard_Real& AX, Standard_Real& BX, Standard_Real& CX, Standard_Real& DX) const; //! returns Y coordinate polynomial for segment referred to by Index //! raises exception if Index <= 0 or Index > NbSegments() Standard_EXPORT void YCoordPolynomial (const Standard_Integer Index, Standard_Real& AY, Standard_Real& BY, Standard_Real& CY, Standard_Real& DY) const; //! returns Z coordinate polynomial for segment referred to by Index //! raises exception if Index <= 0 or Index > NbSegments() Standard_EXPORT void ZCoordPolynomial (const Standard_Integer Index, Standard_Real& AZ, Standard_Real& BZ, Standard_Real& CZ, Standard_Real& DZ) const; //! returns the value of X polynomial, the values of 1st, 2nd and //! 3rd derivatives of the X polynomial at the terminate point Standard_EXPORT void XValues (Standard_Real& TPX0, Standard_Real& TPX1, Standard_Real& TPX2, Standard_Real& TPX3) const; //! returns the value of Y polynomial, the values of 1st, 2nd and //! 3rd derivatives of the Y polynomial at the termminate point Standard_EXPORT void YValues (Standard_Real& TPY0, Standard_Real& TPY1, Standard_Real& TPY2, Standard_Real& TPY3) const; //! returns the value of Z polynomial, the values of 1st, 2nd and //! 3rd derivatives of the Z polynomial at the termminate point Standard_EXPORT void ZValues (Standard_Real& TPZ0, Standard_Real& TPZ1, Standard_Real& TPZ2, Standard_Real& TPZ3) const; DEFINE_STANDARD_RTTIEXT(IGESGeom_SplineCurve,IGESData_IGESEntity) protected: private: Standard_Integer theType; Standard_Integer theDegree; Standard_Integer theNbDimensions; Handle(TColStd_HArray1OfReal) theBreakPoints; Handle(TColStd_HArray2OfReal) theXCoordsPolynomial; Handle(TColStd_HArray2OfReal) theYCoordsPolynomial; Handle(TColStd_HArray2OfReal) theZCoordsPolynomial; Handle(TColStd_HArray1OfReal) theXvalues; Handle(TColStd_HArray1OfReal) theYvalues; Handle(TColStd_HArray1OfReal) theZvalues; }; #endif // _IGESGeom_SplineCurve_HeaderFile