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
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 _GC_MakePlane_HeaderFile
18 #define _GC_MakePlane_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <GC_Root.hxx>
25 #include <Geom_Plane.hxx>
33 //! This class implements the following algorithms used
34 //! to create a Plane from gp.
35 //! * Create a Plane parallel to another and passing
37 //! * Create a Plane passing through 3 points.
38 //! * Create a Plane by its normal
39 //! A MakePlane object provides a framework for:
40 //! - defining the construction of the plane,
41 //! - implementing the construction algorithm, and
42 //! - consulting the results. In particular, the Value
43 //! function returns the constructed plane.
44 class GC_MakePlane : public GC_Root
50 //! Creates a plane from a non persistent plane from package gp.
51 Standard_EXPORT GC_MakePlane(const gp_Pln& Pl);
54 //! P is the "Location" point or origin of the plane.
55 //! V is the direction normal to the plane.
56 Standard_EXPORT GC_MakePlane(const gp_Pnt& P, const gp_Dir& V);
59 //! Creates a plane from its cartesian equation :
60 //! Ax + By + Cz + D = 0.0
61 //! Status is "BadEquation" if Sqrt (A*A + B*B + C*C)
62 //! <= Resolution from gp
63 Standard_EXPORT GC_MakePlane(const Standard_Real A, const Standard_Real B, const Standard_Real C, const Standard_Real D);
65 //! Make a Plane from Geom <ThePlane> parallel to another
66 //! Pln <Pln> and passing through a Pnt <Point>.
67 Standard_EXPORT GC_MakePlane(const gp_Pln& Pln, const gp_Pnt& Point);
69 //! Make a Plane from Geom <ThePlane> parallel to another
70 //! Pln <Pln> at the distance <Dist> which can be greater
71 //! or lower than zero.
72 //! In the first case the result is at the distance
73 //! <Dist> to the plane <Pln> in the direction of the
75 //! Otherwise it is in the opposite direction.
76 Standard_EXPORT GC_MakePlane(const gp_Pln& Pln, const Standard_Real Dist);
78 //! Make a Plane from Geom <ThePlane> passing through 3
79 //! Pnt <P1>,<P2>,<P3>.
80 //! It returns false if <P1> <P2> <P3> are confused.
81 Standard_EXPORT GC_MakePlane(const gp_Pnt& P1, const gp_Pnt& P2, const gp_Pnt& P3);
83 //! Make a Plane passing through the location of <Axis>and
84 //! normal to the Direction of <Axis>.
85 Standard_EXPORT GC_MakePlane(const gp_Ax1& Axis);
87 //! Returns the constructed plane.
88 //! Exceptions StdFail_NotDone if no plane is constructed.
89 Standard_EXPORT const Handle(Geom_Plane)& Value() const;
91 operator const Handle(Geom_Plane)& () const { return Value(); }
94 Handle(Geom_Plane) ThePlane;
97 #endif // _GC_MakePlane_HeaderFile