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1 | // Created on: 2001-12-20 |
| 2 | // Created by: Pavel TELKOV |
| 3 | // Copyright (c) 2001-2014 OPEN CASCADE SAS |
| 4 | // |
| 5 | // This file is part of Open CASCADE Technology software library. |
| 6 | // |
| 7 | // This library is free software; you can redistribute it and/or modify it under |
| 8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 9 | // by the Free Software Foundation, with special exception defined in the file |
| 10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 11 | // distribution for complete text of the license and disclaimer of any warranty. |
| 12 | // |
| 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 14 | // commercial license or contractual agreement. |
| 15 | |
| 16 | #ifndef _ShapeCustom_Curve2d_HeaderFile |
| 17 | #define _ShapeCustom_Curve2d_HeaderFile |
| 18 | |
| 19 | #include <Standard.hxx> |
| 20 | #include <Standard_DefineAlloc.hxx> |
| 21 | #include <Standard_Handle.hxx> |
| 22 | |
| 23 | #include <Standard_Boolean.hxx> |
| 24 | #include <TColgp_Array1OfPnt2d.hxx> |
| 25 | #include <Standard_Real.hxx> |
| 26 | class Geom2d_Line; |
| 27 | class Geom2d_Curve; |
| 28 | class Geom2d_BSplineCurve; |
| 29 | |
| 30 | |
| 31 | //! Converts curve2d to analytical form with given |
| 32 | //! precision or simpify curve2d. |
| 33 | class ShapeCustom_Curve2d |
| 34 | { |
| 35 | public: |
| 36 | |
| 37 | DEFINE_STANDARD_ALLOC |
| 38 | |
| 39 | |
| 40 | //! Check if poleses is in the plane with given precision |
| 41 | //! Returns false if no. |
| 42 | Standard_EXPORT static Standard_Boolean IsLinear (const TColgp_Array1OfPnt2d& thePoles, const Standard_Real theTolerance, Standard_Real& theDeviation); |
| 43 | |
| 44 | //! Try to convert BSpline2d or Bezier2d to line 2d |
| 45 | //! only if it is linear. Recalculate first and last parameters. |
| 46 | //! Returns line2d or null curve2d. |
| 47 | Standard_EXPORT static Handle(Geom2d_Line) ConvertToLine2d (const Handle(Geom2d_Curve)& theCurve, const Standard_Real theFirstIn, const Standard_Real theLastIn, const Standard_Real theTolerance, Standard_Real& theNewFirst, Standard_Real& theNewLast, Standard_Real& theDeviation); |
| 48 | |
| 49 | //! Try to remove knots from bspline where local derivatives are the same. |
| 50 | //! Remove knots with given precision. |
| 51 | //! Returns false if Bsplien was not modified |
| 52 | Standard_EXPORT static Standard_Boolean SimplifyBSpline2d (Handle(Geom2d_BSplineCurve)& theBSpline2d, const Standard_Real theTolerance); |
| 53 | |
| 54 | |
| 55 | |
| 56 | |
| 57 | protected: |
| 58 | |
| 59 | |
| 60 | |
| 61 | |
| 62 | |
| 63 | private: |
| 64 | |
| 65 | |
| 66 | |
| 67 | |
| 68 | |
| 69 | }; |
| 70 | |
| 71 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | #endif // _ShapeCustom_Curve2d_HeaderFile |
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