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64 lines
2.6 KiB
C++
64 lines
2.6 KiB
C++
// Created on: 2001-12-20
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// Created by: Pavel TELKOV
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// Copyright (c) 2001-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _ShapeCustom_Curve2d_HeaderFile
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#define _ShapeCustom_Curve2d_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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class Geom2d_Line;
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class Geom2d_Curve;
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class Geom2d_BSplineCurve;
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//! Converts curve2d to analytical form with given
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//! precision or simplify curve2d.
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class ShapeCustom_Curve2d
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Check if poleses is in the plane with given precision
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//! Returns false if no.
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Standard_EXPORT static Standard_Boolean IsLinear(const TColgp_Array1OfPnt2d& thePoles,
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const Standard_Real theTolerance,
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Standard_Real& theDeviation);
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//! Try to convert BSpline2d or Bezier2d to line 2d
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//! only if it is linear. Recalculate first and last parameters.
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//! Returns line2d or null curve2d.
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Standard_EXPORT static Handle(Geom2d_Line) ConvertToLine2d(const Handle(Geom2d_Curve)& theCurve,
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const Standard_Real theFirstIn,
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const Standard_Real theLastIn,
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const Standard_Real theTolerance,
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Standard_Real& theNewFirst,
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Standard_Real& theNewLast,
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Standard_Real& theDeviation);
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//! Try to remove knots from bspline where local derivatives are the same.
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//! Remove knots with given precision.
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//! Returns false if Bsplien was not modified
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Standard_EXPORT static Standard_Boolean SimplifyBSpline2d(
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Handle(Geom2d_BSplineCurve)& theBSpline2d,
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const Standard_Real theTolerance);
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protected:
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private:
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};
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#endif // _ShapeCustom_Curve2d_HeaderFile
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