include/opencascade/Geom2d_Vector.hxx

0001 // Created on: 1993-03-24
0002 // Created by: JCV
0003 // Copyright (c) 1993-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _Geom2d_Vector_HeaderFile
0018 #define _Geom2d_Vector_HeaderFile
0019
0020 #include <Standard.hxx>
0021
0022 #include <gp_Vec2d.hxx>
0023 #include <Geom2d_Geometry.hxx>
0024 #include <Standard_Real.hxx>
0025
0026
0027 class Geom2d_Vector;
0028 DEFINE_STANDARD_HANDLE(Geom2d_Vector, Geom2d_Geometry)
0029
0030 //! The abstract class Vector describes the common
0031 //! behavior of vectors in 2D space.
0032 //! The Geom2d package provides two concrete
0033 //! classes of vectors: Geom2d_Direction (unit vector)
0034 //! and Geom2d_VectorWithMagnitude.
0035 class Geom2d_Vector : public Geom2d_Geometry
0036 {
0037
0038 public:
0039
0040
0041   //! Reverses the vector <me>.
0042   Standard_EXPORT void Reverse();
0043
0044   //! Returns a copy of <me> reversed.
0045   Standard_NODISCARD Standard_EXPORT Handle(Geom2d_Vector) Reversed() const;
0046
0047   //! Computes the angular value, in radians, between this
0048   //! vector and vector Other. The result is a value
0049   //! between -Pi and Pi. The orientation is from this
0050   //! vector to vector Other.
0051   //! Raises VectorWithNullMagnitude if one of the two vectors is a vector with
0052   //! null magnitude because the angular value is indefinite.
0053   Standard_EXPORT Standard_Real Angle (const Handle(Geom2d_Vector)& Other) const;
0054
0055   //! Returns the coordinates of <me>.
0056   Standard_EXPORT void Coord (Standard_Real& X, Standard_Real& Y) const;
0057
0058   //! Returns the  Magnitude of <me>.
0059   Standard_EXPORT virtual Standard_Real Magnitude() const = 0;
0060
0061   //! Returns the square magnitude of <me>.
0062   Standard_EXPORT virtual Standard_Real SquareMagnitude() const = 0;
0063
0064   //! Returns the X coordinate of <me>.
0065   Standard_EXPORT Standard_Real X() const;
0066
0067   //! Returns the Y coordinate of <me>.
0068   Standard_EXPORT Standard_Real Y() const;
0069
0070   //! Cross product of <me> with the vector <Other>.
0071   Standard_EXPORT virtual Standard_Real Crossed (const Handle(Geom2d_Vector)& Other) const = 0;
0072
0073   //! Returns the scalar product of 2 Vectors.
0074   Standard_EXPORT Standard_Real Dot (const Handle(Geom2d_Vector)& Other) const;
0075
0076   //! Returns a non persistent copy of <me>.
0077   Standard_EXPORT gp_Vec2d Vec2d() const;
0078
0079
0080
0081
0082   DEFINE_STANDARD_RTTIEXT(Geom2d_Vector,Geom2d_Geometry)
0083
0084 protected:
0085
0086
0087   gp_Vec2d gpVec2d;
0088
0089
0090 private:
0091
0092
0093
0094
0095 };
0096
0097
0098
0099
0100
0101
0102
0103 #endif // _Geom2d_Vector_HeaderFile