1 // Copyright (C) 2014-2019 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #ifndef GeomAPI_Dir_H_
21 #define GeomAPI_Dir_H_
23 #include <GeomAPI_Interface.h>
30 * \brief 3D direction defined by three normalized coordinates
33 class GeomAPI_Dir : public GeomAPI_Interface
36 /// Creation of direction by coordinates
38 GeomAPI_Dir(const double theX, const double theY, const double theZ);
39 /// Creation of direction by coordinates
41 GeomAPI_Dir(const std::shared_ptr<GeomAPI_XYZ>& theCoords);
43 /// returns X coordinate
46 /// returns Y coordinate
49 /// returns Z coordinate
53 /// returns coordinates of the direction
55 const std::shared_ptr<GeomAPI_XYZ> xyz();
57 /// inverses the direction
58 GEOMAPI_EXPORT void reverse();
60 /// result is a scalar product of directions
62 double dot(const std::shared_ptr<GeomAPI_Dir>& theArg) const;
63 /// result is a cross product of two directions
65 const std::shared_ptr<GeomAPI_XYZ> cross(const std::shared_ptr<GeomAPI_Dir>& theArg) const;
67 /// calculates angle between two directions
69 double angle(const std::shared_ptr<GeomAPI_Dir>& theArg) const;
71 /// \return true if the angle between this unit vector and
72 /// theDir unit vector is equal to 0 or to Pi.
74 bool isParallel(const std::shared_ptr<GeomAPI_Dir> theDir,
75 const double theTolerance = 1.e-7) const;
80 //! Pointer on the object
81 typedef std::shared_ptr<GeomAPI_Dir> GeomDirPtr;