| 1 | // Created on: 1992-09-28 |
| 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 _GC_MakeSegment_HeaderFile |
| 18 | #define _GC_MakeSegment_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <GC_Root.hxx> |
| 25 | #include <Geom_TrimmedCurve.hxx> |
| 26 | |
| 27 | class StdFail_NotDone; |
| 28 | class gp_Pnt; |
| 29 | class gp_Lin; |
| 30 | |
| 31 | |
| 32 | //! Implements construction algorithms for a line |
| 33 | //! segment in 3D space. |
| 34 | //! Makes a segment of Line from the 2 points <P1> and <P2>. |
| 35 | //! The result is a Geom_TrimmedCurve curve. |
| 36 | //! A MakeSegment object provides a framework for: |
| 37 | //! - defining the construction of the line segment, |
| 38 | //! - implementing the construction algorithm, and |
| 39 | //! - consulting the results. In particular, the Value |
| 40 | //! function returns the constructed line segment. |
| 41 | class GC_MakeSegment : public GC_Root |
| 42 | { |
| 43 | public: |
| 44 | |
| 45 | DEFINE_STANDARD_ALLOC |
| 46 | |
| 47 | |
| 48 | //! Make a segment of Line from the 2 points <P1> and <P2>. |
| 49 | //! It returns NullObject if <P1> and <P2> are confused. |
| 50 | Standard_EXPORT GC_MakeSegment(const gp_Pnt& P1, const gp_Pnt& P2); |
| 51 | |
| 52 | //! Make a segment of Line from the line <Line1> |
| 53 | //! between the two parameters U1 and U2. |
| 54 | //! It returns NullObject if <U1> is equal <U2>. |
| 55 | Standard_EXPORT GC_MakeSegment(const gp_Lin& Line, const Standard_Real U1, const Standard_Real U2); |
| 56 | |
| 57 | //! Make a segment of Line from the line <Line1> |
| 58 | //! between the point <Point> and the parameter Ulast. |
| 59 | //! It returns NullObject if <U1> is equal <U2>. |
| 60 | Standard_EXPORT GC_MakeSegment(const gp_Lin& Line, const gp_Pnt& Point, const Standard_Real Ulast); |
| 61 | |
| 62 | //! Make a segment of Line from the line <Line1> |
| 63 | //! between the two points <P1> and <P2>. |
| 64 | //! It returns NullObject if <U1> is equal <U2>. |
| 65 | Standard_EXPORT GC_MakeSegment(const gp_Lin& Line, const gp_Pnt& P1, const gp_Pnt& P2); |
| 66 | |
| 67 | //! Returns the constructed line segment. |
| 68 | Standard_EXPORT const Handle(Geom_TrimmedCurve)& Value() const; |
| 69 | |
| 70 | operator const Handle(Geom_TrimmedCurve)& () const { return Value(); } |
| 71 | |
| 72 | private: |
| 73 | Handle(Geom_TrimmedCurve) TheSegment; |
| 74 | }; |
| 75 | |
| 76 | #endif // _GC_MakeSegment_HeaderFile |