include/opencascade/FEmTool_Curve.hxx

0001 // Created on: 1997-09-12
0002 // Created by: Philippe MANGIN
0003 // Copyright (c) 1997-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _FEmTool_Curve_HeaderFile
0018 #define _FEmTool_Curve_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <Standard_Integer.hxx>
0024 #include <TColStd_HArray1OfReal.hxx>
0025 #include <TColStd_Array1OfInteger.hxx>
0026 #include <TColStd_Array1OfReal.hxx>
0027 #include <Standard_Real.hxx>
0028 #include <Standard_Transient.hxx>
0029 #include <TColStd_Array2OfReal.hxx>
0030 class PLib_Base;
0031
0032
0033 class FEmTool_Curve;
0034 DEFINE_STANDARD_HANDLE(FEmTool_Curve, Standard_Transient)
0035
0036 //! Curve defined by Polynomial Elements.
0037 class FEmTool_Curve : public Standard_Transient
0038 {
0039
0040 public:
0041
0042
0043   Standard_EXPORT FEmTool_Curve(const Standard_Integer Dimension, const Standard_Integer NbElements, const Handle(PLib_Base)& TheBase, const Standard_Real Tolerance);
0044
0045   Standard_EXPORT TColStd_Array1OfReal& Knots() const;
0046
0047   Standard_EXPORT void SetElement (const Standard_Integer IndexOfElement, const TColStd_Array2OfReal& Coeffs);
0048
0049   Standard_EXPORT void D0 (const Standard_Real U, TColStd_Array1OfReal& Pnt);
0050
0051   Standard_EXPORT void D1 (const Standard_Real U, TColStd_Array1OfReal& Vec);
0052
0053   Standard_EXPORT void D2 (const Standard_Real U, TColStd_Array1OfReal& Vec);
0054
0055   Standard_EXPORT void Length (const Standard_Real FirstU, const Standard_Real LastU, Standard_Real& Length);
0056
0057   Standard_EXPORT void GetElement (const Standard_Integer IndexOfElement, TColStd_Array2OfReal& Coeffs);
0058
0059   //! returns  coefficients  of  all  elements  in  canonical  base.
0060   Standard_EXPORT void GetPolynom (TColStd_Array1OfReal& Coeffs);
0061
0062   Standard_EXPORT Standard_Integer NbElements() const;
0063
0064   Standard_EXPORT Standard_Integer Dimension() const;
0065
0066   Standard_EXPORT Handle(PLib_Base) Base() const;
0067
0068   Standard_EXPORT Standard_Integer Degree (const Standard_Integer IndexOfElement) const;
0069
0070   Standard_EXPORT void SetDegree (const Standard_Integer IndexOfElement, const Standard_Integer Degree);
0071
0072   Standard_EXPORT void ReduceDegree (const Standard_Integer IndexOfElement, const Standard_Real Tol, Standard_Integer& NewDegree, Standard_Real& MaxError);
0073
0074
0075
0076
0077   DEFINE_STANDARD_RTTIEXT(FEmTool_Curve,Standard_Transient)
0078
0079 protected:
0080
0081
0082
0083
0084 private:
0085
0086
0087   Standard_EXPORT void Update (const Standard_Integer Element, const Standard_Integer Order);
0088
0089   Standard_Integer myNbElements;
0090   Standard_Integer myDimension;
0091   Handle(PLib_Base) myBase;
0092   Handle(TColStd_HArray1OfReal) myKnots;
0093   TColStd_Array1OfInteger myDegree;
0094   TColStd_Array1OfReal myCoeff;
0095   TColStd_Array1OfReal myPoly;
0096   TColStd_Array1OfReal myDeri;
0097   TColStd_Array1OfReal myDsecn;
0098   TColStd_Array1OfInteger HasPoly;
0099   TColStd_Array1OfInteger HasDeri;
0100   TColStd_Array1OfInteger HasSecn;
0101   TColStd_Array1OfReal myLength;
0102   Standard_Real Uf;
0103   Standard_Real Ul;
0104   Standard_Real Denom;
0105   Standard_Real USum;
0106   Standard_Integer myIndex;
0107   Standard_Integer myPtr;
0108
0109
0110 };
0111
0112
0113
0114
0115
0116
0117
0118 #endif // _FEmTool_Curve_HeaderFile