| 42cf5bc1 |
1 | // Created on: 1992-08-26 |
| 2 | // Created by: Remi GILET |
| 3 | // Copyright (c) 1992-1999 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 _gce_MakeDir2d_HeaderFile |
| 18 | #define _gce_MakeDir2d_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <gp_Dir2d.hxx> |
| 25 | #include <gce_Root.hxx> |
| 26 | #include <Standard_Real.hxx> |
| 27 | class StdFail_NotDone; |
| 28 | class gp_Vec2d; |
| 29 | class gp_XY; |
| 30 | class gp_Pnt2d; |
| 31 | class gp_Dir2d; |
| 32 | |
| 33 | |
| 34 | //! This class implements the following algorithms used |
| 35 | //! to create a Dir2d from gp. |
| 36 | //! * Create a Dir2d with 2 points. |
| 37 | //! * Create a Dir2d with a Vec2d. |
| 38 | //! * Create a Dir2d with a XY from gp. |
| 39 | //! * Create a Dir2d with a 2 Reals (Coordinates). |
| 40 | class gce_MakeDir2d : public gce_Root |
| 41 | { |
| 42 | public: |
| 43 | |
| 44 | DEFINE_STANDARD_ALLOC |
| 45 | |
| 46 | |
| 47 | //! Normalizes the vector V and creates a direction. |
| 48 | //! Status is "NullVector" if V.Magnitude() <= Resolution. |
| 49 | Standard_EXPORT gce_MakeDir2d(const gp_Vec2d& V); |
| 50 | |
| 51 | //! Creates a direction from a triplet of coordinates. |
| 52 | //! Status is "NullVector" if Coord.Modulus() <= |
| 53 | //! Resolution from gp. |
| 54 | Standard_EXPORT gce_MakeDir2d(const gp_XY& Coord); |
| 55 | |
| 56 | //! Creates a direction with its 3 cartesian coordinates. |
| 57 | //! Status is "NullVector" if Sqrt(Xv*Xv + Yv*Yv ) |
| 58 | //! <= Resolution |
| 59 | Standard_EXPORT gce_MakeDir2d(const Standard_Real Xv, const Standard_Real Yv); |
| 60 | |
| 61 | //! Make a Dir2d from gp <TheDir> passing through 2 |
| 62 | //! Pnt <P1>,<P2>. |
| 63 | //! Status is "ConfusedPoints" if <P1> and <P2> are confused. |
| 64 | //! Warning |
| 65 | //! If an error occurs (that is, when IsDone returns |
| 66 | //! false), the Status function returns: |
| 67 | //! - gce_ConfusedPoints if points P1 and P2 are coincident, or |
| 68 | //! - gce_NullVector if one of the following is less |
| 69 | //! than or equal to gp::Resolution(): |
| 70 | //! - the magnitude of vector V, |
| 71 | //! - the modulus of Coord, |
| 72 | //! - Sqrt(Xv*Xv + Yv*Yv). |
| 73 | Standard_EXPORT gce_MakeDir2d(const gp_Pnt2d& P1, const gp_Pnt2d& P2); |
| 74 | |
| 75 | //! Returns the constructed unit vector. |
| 76 | //! Exceptions StdFail_NotDone if no unit vector is constructed. |
| 77 | Standard_EXPORT const gp_Dir2d& Value() const; |
| 78 | |
| 79 | Standard_EXPORT const gp_Dir2d& Operator() const; |
| 80 | Standard_EXPORT operator gp_Dir2d() const; |
| 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 | protected: |
| 86 | |
| 87 | |
| 88 | |
| 89 | |
| 90 | |
| 91 | private: |
| 92 | |
| 93 | |
| 94 | |
| 95 | gp_Dir2d TheDir2d; |
| 96 | |
| 97 | |
| 98 | }; |
| 99 | |
| 100 | |
| 101 | |
| 102 | |
| 103 | |
| 104 | |
| 105 | |
| 106 | #endif // _gce_MakeDir2d_HeaderFile |
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