1 // Created on: 1994-09-29
2 // Created by: Dieter THIEMANN
3 // Copyright (c) 1994-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _UnitsMethods_HeaderFile
18 #define _UnitsMethods_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Real.hxx>
25 #include <Standard_Boolean.hxx>
26 #include <Standard_Integer.hxx>
39 //! Initializes the 3 factors for the conversion of
41 Standard_EXPORT static void InitializeFactors (const Standard_Real LengthFactor, const Standard_Real PlaneAngleFactor, const Standard_Real SolidAngleFactor);
43 Standard_EXPORT static Standard_Real LengthFactor();
45 Standard_EXPORT static Standard_Real PlaneAngleFactor();
47 Standard_EXPORT static Standard_Real SolidAngleFactor();
49 Standard_EXPORT static void Set3dConversion (const Standard_Boolean B);
51 Standard_EXPORT static Standard_Boolean Convert3d();
53 Standard_EXPORT static Handle(Geom2d_Curve) RadianToDegree (const Handle(Geom2d_Curve)& C, const Handle(Geom_Surface)& S);
55 Standard_EXPORT static Handle(Geom2d_Curve) DegreeToRadian (const Handle(Geom2d_Curve)& C, const Handle(Geom_Surface)& S);
57 Standard_EXPORT static Handle(Geom2d_Curve) MirrorPCurve (const Handle(Geom2d_Curve)& C);
59 //! Returns value of unit encoded by parameter param
60 //! (integer value denoting unit, as described in IGES
61 //! standard) in millimeters
62 Standard_EXPORT static Standard_Real GetLengthFactorValue (const Standard_Integer param);
64 //! Returns value of current internal unit for CASCADE
66 Standard_EXPORT static Standard_Real GetCasCadeLengthUnit();
68 //! Sets value of current internal unit for CASCADE
69 //! by parameter param (integer value denoting unit,
70 //! as described in IGES standard)
71 //! GetCasCadeLengthUnit() will then return value
72 //! equal to GetLengthFactorValue(param)
73 Standard_EXPORT static void SetCasCadeLengthUnit (const Standard_Integer param);
98 #endif // _UnitsMethods_HeaderFile