3 // Written by Vivian MEAZZA, started Feb 2008.
6 // Copyright (C) 2008 Vivain MEAZZA - vivian.meazza@lineone.net
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 #ifndef _INST_RADALT_HXX
25 #define _INST_RADALT_HXX
27 #include <simgear/structure/subsystem_mgr.hxx>
28 #include <simgear/props/props.hxx>
29 #include <simgear/math/SGMath.hxx>
31 class RadarAltimeter : public SGSubsystem
35 RadarAltimeter ( SGPropertyNode *node );
36 virtual ~RadarAltimeter ();
41 virtual void update (double dt);
43 void update_altitude();
44 void updateSetHeight();
46 double getDistanceAntennaToHit(const SGVec3d& h) const;
47 SGVec3d getCartAntennaPos()const;
49 SGVec3d rayVector(double az, double el) const;
51 SGPropertyNode_ptr _Instrument;
52 SGPropertyNode_ptr _user_alt_agl_node;
53 SGPropertyNode_ptr _rad_alt_warning_node;
54 SGPropertyNode_ptr _serviceable_node;
55 SGPropertyNode_ptr _sceneryLoaded;
58 SGVec3d _antennaOffset; // in aircraft local XYZ frame
69 #endif // _INST_AGRADAR_HXX