1 // Created on: 1997-09-12 2 // Created by: Philippe MANGIN 3 // Copyright (c) 1997-1999 Matra Datavision 4 // Copyright (c) 1999-2014 OPEN CASCADE SAS 5 // 6 // This file is part of Open CASCADE Technology software library. 7 // 8 // This library is free software; you can redistribute it and/or modify it under 9 // the terms of the GNU Lesser General Public License version 2.1 as published 10 // by the Free Software Foundation, with special exception defined in the file 11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 12 // distribution for complete text of the license and disclaimer of any warranty. 13 // 14 // Alternatively, this file may be used under the terms of Open CASCADE 15 // commercial license or contractual agreement. 16 17 #ifndef _FEmTool_Curve_HeaderFile 18 #define _FEmTool_Curve_HeaderFile 19 20 #include <Standard.hxx> 21 #include <Standard_Type.hxx> 22 23 #include <Standard_Integer.hxx> 24 #include <TColStd_HArray1OfReal.hxx> 25 #include <TColStd_Array1OfInteger.hxx> 26 #include <TColStd_Array1OfReal.hxx> 27 #include <Standard_Real.hxx> 28 #include <Standard_Transient.hxx> 29 #include <TColStd_Array2OfReal.hxx> 30 class PLib_Base; 31 32 33 class FEmTool_Curve; 34 DEFINE_STANDARD_HANDLE(FEmTool_Curve, Standard_Transient) 35 36 //! Curve defined by Polynomial Elements. 37 class FEmTool_Curve : public Standard_Transient 38 { 39 40 public: 41 42 43 Standard_EXPORT FEmTool_Curve(const Standard_Integer Dimension, const Standard_Integer NbElements, const Handle(PLib_Base)& TheBase, const Standard_Real Tolerance); 44 45 Standard_EXPORT TColStd_Array1OfReal& Knots() const; 46 47 Standard_EXPORT void SetElement (const Standard_Integer IndexOfElement, const TColStd_Array2OfReal& Coeffs); 48 49 Standard_EXPORT void D0 (const Standard_Real U, TColStd_Array1OfReal& Pnt); 50 51 Standard_EXPORT void D1 (const Standard_Real U, TColStd_Array1OfReal& Vec); 52 53 Standard_EXPORT void D2 (const Standard_Real U, TColStd_Array1OfReal& Vec); 54 55 Standard_EXPORT void Length (const Standard_Real FirstU, const Standard_Real LastU, Standard_Real& Length); 56 57 Standard_EXPORT void GetElement (const Standard_Integer IndexOfElement, TColStd_Array2OfReal& Coeffs); 58 59 //! returns coefficients of all elements in canonical base. 60 Standard_EXPORT void GetPolynom (TColStd_Array1OfReal& Coeffs); 61 62 Standard_EXPORT Standard_Integer NbElements() const; 63 64 Standard_EXPORT Standard_Integer Dimension() const; 65 66 Standard_EXPORT Handle(PLib_Base) Base() const; 67 68 Standard_EXPORT Standard_Integer Degree (const Standard_Integer IndexOfElement) const; 69 70 Standard_EXPORT void SetDegree (const Standard_Integer IndexOfElement, const Standard_Integer Degree); 71 72 Standard_EXPORT void ReduceDegree (const Standard_Integer IndexOfElement, const Standard_Real Tol, Standard_Integer& NewDegree, Standard_Real& MaxError); 73 74 75 76 77 DEFINE_STANDARD_RTTIEXT(FEmTool_Curve,Standard_Transient) 78 79 protected: 80 81 82 83 84 private: 85 86 87 Standard_EXPORT void Update (const Standard_Integer Element, const Standard_Integer Order); 88 89 Standard_Integer myNbElements; 90 Standard_Integer myDimension; 91 Handle(PLib_Base) myBase; 92 Handle(TColStd_HArray1OfReal) myKnots; 93 TColStd_Array1OfInteger myDegree; 94 TColStd_Array1OfReal myCoeff; 95 TColStd_Array1OfReal myPoly; 96 TColStd_Array1OfReal myDeri; 97 TColStd_Array1OfReal myDsecn; 98 TColStd_Array1OfInteger HasPoly; 99 TColStd_Array1OfInteger HasDeri; 100 TColStd_Array1OfInteger HasSecn; 101 TColStd_Array1OfReal myLength; 102 Standard_Real Uf; 103 Standard_Real Ul; 104 Standard_Real Denom; 105 Standard_Real USum; 106 Standard_Integer myIndex; 107 Standard_Integer myPtr; 108 109 110 }; 111 112 113 114 115 116 117 118 #endif // _FEmTool_Curve_HeaderFile 119