0030692: Data Exchange - introduce base framework RWMesh for importing mesh data...

[occt.git] / src / RWMesh / RWMesh_CoordinateSystem.hxx

diff --git a/src/RWMesh/RWMesh_CoordinateSystem.hxx b/src/RWMesh/RWMesh_CoordinateSystem.hxx
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+// Author: Kirill Gavrilov
+// Copyright: Open CASCADE 2015-2019
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _RWMesh_CoordinateSystem_HeaderFile
+#define _RWMesh_CoordinateSystem_HeaderFile
+
+//! Standard coordinate system definition.
+//! Open CASCADE does not force application using specific coordinate system,
+//! although Draw Harness and samples define +Z-up +Y-forward coordinate system for camera view manipulation.
+//! This enumeration defines two commonly used conventions - Z-up and Y-up..
+enum RWMesh_CoordinateSystem
+{
+  RWMesh_CoordinateSystem_Undefined      = -1, //!< undefined
+  RWMesh_CoordinateSystem_posYfwd_posZup =  0, //!< +YForward+Zup+Xright
+  RWMesh_CoordinateSystem_negZfwd_posYup,      //!< -ZForward+Yup+Xright
+
+  RWMesh_CoordinateSystem_Blender = RWMesh_CoordinateSystem_posYfwd_posZup, //!< coordinate system used by Blender (+YForward+Zup+Xright)
+  RWMesh_CoordinateSystem_glTF    = RWMesh_CoordinateSystem_negZfwd_posYup, //!< coordinate system used by glTF    (-ZForward+Yup+Xright)
+  RWMesh_CoordinateSystem_Zup     = RWMesh_CoordinateSystem_Blender,        //!< Z-up coordinate system (+YForward+Zup+Xright)
+  RWMesh_CoordinateSystem_Yup     = RWMesh_CoordinateSystem_glTF,           //!< Y-up coordinate system (-ZForward+Yup+Xright)
+};
+
+#endif // _RWMesh_CoordinateSystem_HeaderFile