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79289339d8
- Fixed excessive whitespace in multi-line comments - Corrected spelling errors (e.g., "selectionnable" → "selectable", "begenning" → "beginning") - Improved comment formatting and readability
80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
// Created on: 1993-04-20
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// Created by: Modelistation
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// Copyright (c) 1993-1999 Matra Datavision
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// Copyright (c) 1999-2014 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 _HLRBRep_CLPropsATool_HeaderFile
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#define _HLRBRep_CLPropsATool_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 <Standard_Real.hxx>
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class gp_Pnt2d;
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class gp_Vec2d;
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class HLRBRep_CLPropsATool
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Computes the point <P> of parameter <U> on the
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//! Curve from HLRBRep <C>.
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static void Value(const HLRBRep_Curve* A, const Standard_Real U, gp_Pnt2d& P);
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//! Computes the point <P> and first derivative <V1>
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//! of parameter <U> on the curve <C>.
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static void D1(const HLRBRep_Curve* A, const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1);
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//! Computes the point <P>, the first derivative <V1>
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//! and second derivative <V2> of parameter <U> on the
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//! curve <C>.
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static void D2(const HLRBRep_Curve* A,
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const Standard_Real U,
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gp_Pnt2d& P,
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gp_Vec2d& V1,
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gp_Vec2d& V2);
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//! Computes the point <P>, the first derivative <V1>,
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//! the second derivative <V2> and third derivative
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//! <V3> of parameter <U> on the curve <C>.
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static void D3(const HLRBRep_Curve* A,
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const Standard_Real U,
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gp_Pnt2d& P,
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gp_Vec2d& V1,
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gp_Vec2d& V2,
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gp_Vec2d& V3);
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//! returns the order of continuity of the curve <C>.
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//! returns 1: first derivative only is computable.
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//! returns 2: first and second derivative only are computable.
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//! returns 3: first, second and third are computable.
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static Standard_Integer Continuity(const HLRBRep_Curve* A);
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//! returns the first parameter bound of the curve.
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static Standard_Real FirstParameter(const HLRBRep_Curve* A);
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//! returns the last parameter bound of the curve.
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//! FirstParameter must be less than LastParamenter.
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static Standard_Real LastParameter(const HLRBRep_Curve* A);
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protected:
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private:
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};
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#include <HLRBRep_CLPropsATool.lxx>
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#endif // _HLRBRep_CLPropsATool_HeaderFile
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