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+// Air Ground Radar
+//
+// Written by Vivian MEAZZA, started Feb 2008.
+//
+//
+// Copyright (C) 2008  Vivain MEAZZA - vivian.meazza@lineone.net
+//
+// 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//
+//
+
+#ifndef _INST_AGRADAR_HXX
+#define _INST_AGRADAR_HXX
+
+#include <simgear/structure/subsystem_mgr.hxx>
+#include <Scenery/scenery.hxx>
+#include <simgear/scene/material/mat.hxx>
+
+#include "wxradar.hxx"
+
+class agRadar : public wxRadarBg
+{
+public:
+    agRadar ( SGPropertyNode *node );
+    agRadar ();
+    virtual ~agRadar ();
+
+    // Subsystem API.
+    void init() override;
+    void update(double dt) override;
+
+    // Subsystem identification.
+    static const char* staticSubsystemClassId() { return "air-ground-radar"; }
+
+    void setUserPos();
+    void setUserVec(double az, double el);
+    void update_terrain();
+    void setAntennaPos();
+
+    bool getMaterial();
+
+    double _load_resistance;    // ground load resistanc N/m^2
+    double _frictionFactor;     // dimensionless modifier for Coefficient of Friction
+    double _bumpinessFactor;    // dimensionless modifier for Bumpiness
+    double _elevation_m;        // ground elevation in meters
+    bool   _solid;              // if true ground is solid for FDMs
+
+    std::string _mat_name; // ground material
+
+    SGVec3d getCartUserPos() const;
+    SGVec3d getCartAntennaPos()const;
+
+    SGVec3d uservec;
+
+    SGPropertyNode_ptr _user_hdg_deg_node;
+    SGPropertyNode_ptr _user_roll_deg_node;
+    SGPropertyNode_ptr _user_pitch_deg_node;
+    SGPropertyNode_ptr _terrain_warning_node;
+
+    SGPropertyNode_ptr _xOffsetMNode;
+    SGPropertyNode_ptr _yOffsetMNode;
+    SGPropertyNode_ptr _zOffsetMNode;
+
+    SGPropertyNode_ptr _elevLimitDegNode;
+    SGPropertyNode_ptr _elevStepDegNode;
+    SGPropertyNode_ptr _azLimitDegNode;
+    SGPropertyNode_ptr _azStepDegNode;
+    SGPropertyNode_ptr _maxRangeMNode;
+    SGPropertyNode_ptr _minRangeMNode;
+    SGPropertyNode_ptr _tiltNode;
+
+    SGPropertyNode_ptr _brgDegNode;
+    SGPropertyNode_ptr _rangeMNode;
+    SGPropertyNode_ptr _elevationMNode;
+    SGPropertyNode_ptr _materialNode;
+    SGPropertyNode_ptr _bumpinessNode;
+
+    SGPropertyNode_ptr _rollStabNode;
+    SGPropertyNode_ptr _pitchStabNode;
+
+    SGGeod userpos;
+    SGGeod hitpos;
+    SGGeod antennapos;
+};
+
+#endif // _INST_AGRADAR_HXX