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681f3919f0
Toolkit 'TKHLR' was fully refactored for 'Standard_Address' and macros except about half of package 'HLRBREP' there 'Standard_Address' is used through the 'generic' mechanism.
149 lines
4.2 KiB
C++
149 lines
4.2 KiB
C++
// Created on: 1992-10-14
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// Created by: Christophe MARION
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// Copyright (c) 1992-1999 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_CLProps_HeaderFile
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#define _HLRBRep_CLProps_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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#include <Standard_Integer.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Vec2d.hxx>
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#include <gp_Dir2d.hxx>
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#include <LProp_Status.hxx>
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#include <Standard_Boolean.hxx>
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class LProp_BadContinuity;
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class Standard_DomainError;
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class Standard_OutOfRange;
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class LProp_NotDefined;
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class gp_Vec2d;
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class gp_Pnt2d;
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class gp_Dir2d;
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class HLRBRep_CLPropsATool;
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class HLRBRep_Curve;
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class HLRBRep_CLProps
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Initializes the local properties of the curve <C>
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//! The current point and the derivatives are
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//! computed at the same time, which allows an
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//! optimization of the computation time.
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//! <N> indicates the maximum number of derivations to
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//! be done (0, 1, 2 or 3). For example, to compute
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//! only the tangent, N should be equal to 1.
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//! <Resolution> is the linear tolerance (it is used to test
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//! if a vector is null).
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Standard_EXPORT HLRBRep_CLProps(const HLRBRep_Curve*& C, const Standard_Integer N, const Standard_Real Resolution);
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//! Same as previous constructor but here the parameter is
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//! set to the value <U>.
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//! All the computations done will be related to <C> and <U>.
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Standard_EXPORT HLRBRep_CLProps(const HLRBRep_Curve*& C, const Standard_Real U, const Standard_Integer N, const Standard_Real Resolution);
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//! Same as previous constructor but here the parameter is
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//! set to the value <U> and the curve is set
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//! with SetCurve.
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//! the curve can have a empty constructor
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//! All the computations done will be related to <C> and <U>
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//! when the functions "set" will be done.
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Standard_EXPORT HLRBRep_CLProps(const Standard_Integer N, const Standard_Real Resolution);
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//! Initializes the local properties of the curve
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//! for the parameter value <U>.
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Standard_EXPORT void SetParameter (const Standard_Real U);
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//! Initializes the local properties of the curve
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//! for the new curve.
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Standard_EXPORT void SetCurve (const HLRBRep_Curve*& C);
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//! Returns the Point.
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Standard_EXPORT const gp_Pnt2d& Value() const;
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//! Returns the first derivative.
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//! The derivative is computed if it has not been yet.
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Standard_EXPORT const gp_Vec2d& D1();
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//! Returns the second derivative.
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//! The derivative is computed if it has not been yet.
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Standard_EXPORT const gp_Vec2d& D2();
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//! Returns the third derivative.
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//! The derivative is computed if it has not been yet.
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Standard_EXPORT const gp_Vec2d& D3();
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//! Returns True if the tangent is defined.
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//! For example, the tangent is not defined if the
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//! three first derivatives are all null.
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Standard_EXPORT Standard_Boolean IsTangentDefined();
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//! output the tangent direction <D>
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Standard_EXPORT void Tangent (gp_Dir2d& D);
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//! Returns the curvature.
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Standard_EXPORT Standard_Real Curvature();
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//! Returns the normal direction <N>.
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Standard_EXPORT void Normal (gp_Dir2d& N);
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//! Returns the centre of curvature <P>.
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Standard_EXPORT void CentreOfCurvature (gp_Pnt2d& P);
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protected:
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private:
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const HLRBRep_Curve* myCurve;
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Standard_Real myU;
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Standard_Integer myDerOrder;
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Standard_Real myCN;
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Standard_Real myLinTol;
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gp_Pnt2d myPnt;
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gp_Vec2d myDerivArr[3];
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gp_Dir2d myTangent;
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Standard_Real myCurvature;
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LProp_Status myTangentStatus;
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Standard_Integer mySignificantFirstDerivativeOrder;
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};
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#endif // _HLRBRep_CLProps_HeaderFile
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