+// ATCProjection.hxx - A convienience projection class for the ATC/AI system.
+//
+// Written by David Luff, started 2002.
+//
+// Copyright (C) 2002 David C Luff - david.luff@nottingham.ac.uk
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
#ifndef _FG_ATC_PROJECTION_HXX
#define _FG_ATC_PROJECTION_HXX
void Init(Point3D centre);
- // Convert a lat/lon co-ordinate to the local projection
+ // Convert a lat/lon co-ordinate (degrees) to the local projection (meters)
Point3D ConvertToLocal(Point3D pt);
- // Convert a local projection co-ordinate to lat/lon
+ // Convert a local projection co-ordinate (meters) to lat/lon (degrees)
Point3D ConvertFromLocal(Point3D pt);
private:
void Init(Point3D centre, double heading);
- // Convert a lat/lon co-ordinate to the local projection
+ // Convert a lat/lon co-ordinate (degrees) to the local projection (meters)
Point3D ConvertToLocal(Point3D pt);
- // Convert a local projection co-ordinate to lat/lon
+ // Convert a local projection co-ordinate (meters) to lat/lon (degrees)
Point3D ConvertFromLocal(Point3D pt);
private: