| 42cf5bc1 |
1 | // Created on: 1991-10-10 |
| 2 | // Created by: Jean Claude VAUTHIER |
| 3 | // Copyright (c) 1991-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 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. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | #ifndef _Convert_SphereToBSplineSurface_HeaderFile |
| 18 | #define _Convert_SphereToBSplineSurface_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <Convert_ElementarySurfaceToBSplineSurface.hxx> |
| 25 | #include <Standard_Real.hxx> |
| 26 | #include <Standard_Boolean.hxx> |
| 27 | class Standard_DomainError; |
| 28 | class gp_Sphere; |
| 29 | |
| 30 | |
| 31 | |
| 32 | //! This algorithm converts a bounded Sphere into a rational |
| 33 | //! B-spline surface. The sphere is a Sphere from package gp. |
| 34 | //! The parametrization of the sphere is |
| 35 | //! P (U, V) = Loc + Radius * Sin(V) * Zdir + |
| 36 | //! Radius * Cos(V) * (Cos(U)*Xdir + Sin(U)*Ydir) |
| 37 | //! where Loc is the center of the sphere Xdir, Ydir and Zdir are the |
| 38 | //! normalized directions of the local cartesian coordinate system of |
| 39 | //! the sphere. The parametrization range is U [0, 2PI] and |
| 40 | //! V [-PI/2, PI/2]. |
| 41 | //! KeyWords : |
| 42 | //! Convert, Sphere, BSplineSurface. |
| 43 | class Convert_SphereToBSplineSurface : public Convert_ElementarySurfaceToBSplineSurface |
| 44 | { |
| 45 | public: |
| 46 | |
| 47 | DEFINE_STANDARD_ALLOC |
| 48 | |
| 49 | |
| 50 | |
| 51 | //! The equivalent B-spline surface as the same orientation as the |
| 52 | //! sphere in the U and V parametric directions. |
| 53 | //! |
| 54 | //! Raised if U1 = U2 or U1 = U2 + 2.0 * Pi |
| 55 | //! Raised if V1 = V2. |
| 56 | Standard_EXPORT Convert_SphereToBSplineSurface(const gp_Sphere& Sph, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2); |
| 57 | |
| 58 | |
| 59 | //! The equivalent B-spline surface as the same orientation |
| 60 | //! as the sphere in the U and V parametric directions. |
| 61 | //! |
| 62 | //! Raised if UTrim = True and Param1 = Param2 or |
| 63 | //! Param1 = Param2 + 2.0 * Pi |
| 64 | //! Raised if UTrim = False and Param1 = Param2 |
| 65 | Standard_EXPORT Convert_SphereToBSplineSurface(const gp_Sphere& Sph, const Standard_Real Param1, const Standard_Real Param2, const Standard_Boolean UTrim = Standard_True); |
| 66 | |
| 67 | |
| 68 | //! The equivalent B-spline surface as the same orientation |
| 69 | //! as the sphere in the U and V parametric directions. |
| 70 | Standard_EXPORT Convert_SphereToBSplineSurface(const gp_Sphere& Sph); |
| 71 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | protected: |
| 76 | |
| 77 | |
| 78 | |
| 79 | |
| 80 | |
| 81 | private: |
| 82 | |
| 83 | |
| 84 | |
| 85 | |
| 86 | |
| 87 | }; |
| 88 | |
| 89 | |
| 90 | |
| 91 | |
| 92 | |
| 93 | |
| 94 | |
| 95 | #endif // _Convert_SphereToBSplineSurface_HeaderFile |
projects / occt.git / blame