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126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
// Created on: 1993-03-24
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// Created by: JCV
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// Copyright (c) 1993-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Geom2d_AxisPlacement_HeaderFile
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#define _Geom2d_AxisPlacement_HeaderFile
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#include <Standard.hxx>
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#include <gp_Ax2d.hxx>
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#include <Geom2d_Geometry.hxx>
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#include <Standard_Real.hxx>
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class gp_Pnt2d;
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class gp_Dir2d;
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class gp_Trsf2d;
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class Geom2d_AxisPlacement;
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DEFINE_STANDARD_HANDLE(Geom2d_AxisPlacement, Geom2d_Geometry)
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//! Describes an axis in 2D space.
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//! An axis is defined by:
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//! - its origin, also termed the "Location point" of the axis,
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//! - its unit vector, termed the "Direction" of the axis.
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//! Note: Geom2d_AxisPlacement axes provide the
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//! same kind of "geometric" services as gp_Ax2d axes
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//! but have more complex data structures. The
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//! geometric objects provided by the Geom2d package
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//! use gp_Ax2d objects to include axes in their data
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//! structures, or to define an axis of symmetry or axis of rotation.
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//! Geom2d_AxisPlacement axes are used in a context
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//! where they can be shared by several objects
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//! contained inside a common data structure.
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class Geom2d_AxisPlacement : public Geom2d_Geometry
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{
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public:
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//! Constructs an axis by conversion of the gp_Ax2d axis A.
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Standard_EXPORT Geom2d_AxisPlacement(const gp_Ax2d& A);
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//! Constructs an axis from a given origin P and unit vector V.
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Standard_EXPORT Geom2d_AxisPlacement(const gp_Pnt2d& P, const gp_Dir2d& V);
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Standard_EXPORT void Reverse();
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//! Reverses the unit vector of this axis.
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//! Note:
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//! - Reverse assigns the result to this axis, while
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//! - Reversed creates a new one.
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Standard_NODISCARD Standard_EXPORT Handle(Geom2d_AxisPlacement) Reversed() const;
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//! Changes the complete definition of the axis placement.
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Standard_EXPORT void SetAxis (const gp_Ax2d& A);
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//! Changes the "Direction" of the axis placement.
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Standard_EXPORT void SetDirection (const gp_Dir2d& V);
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//! Changes the "Location" point (origin) of the axis placement.
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Standard_EXPORT void SetLocation (const gp_Pnt2d& P);
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//! Computes the angle between the "Direction" of
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//! two axis placement in radians.
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//! The result is comprised between -Pi and Pi.
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Standard_EXPORT Standard_Real Angle (const Handle(Geom2d_AxisPlacement)& Other) const;
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//! Converts this axis into a gp_Ax2d axis.
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Standard_EXPORT gp_Ax2d Ax2d() const;
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//! Returns the "Direction" of <me>.
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//! -C++: return const&
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Standard_EXPORT gp_Dir2d Direction() const;
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//! Returns the "Location" point (origin) of the axis placement.
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//! -C++: return const&
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Standard_EXPORT gp_Pnt2d Location() const;
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//! Applies the transformation T to this axis.
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Standard_EXPORT void Transform (const gp_Trsf2d& T) Standard_OVERRIDE;
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//! Creates a new object which is a copy of this axis.
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Standard_EXPORT Handle(Geom2d_Geometry) Copy() const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(Geom2d_AxisPlacement,Geom2d_Geometry)
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protected:
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private:
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gp_Ax2d axis;
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};
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#endif // _Geom2d_AxisPlacement_HeaderFile
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