1 // Wx Radar background texture
3 // Written by Harald JOHNSEN, started May 2005.
4 // With major amendments by Vivian MEAZZA May 2007
5 // Ported to OSG by Tim MOORE Jun 2007
7 // Copyright (C) 2005 Harald JOHNSEN - hjohnsen@evc.net
9 // This program is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU General Public License as
11 // published by the Free Software Foundation; either version 2 of the
12 // License, or (at your option) any later version.
14 // This program is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // General Public License for more details.
19 // You should have received a copy of the GNU General Public License
20 // along with this program; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
25 #ifndef _INST_WXRADAR_HXX
26 #define _INST_WXRADAR_HXX
28 #include <osg/ref_ptr>
30 #include <osg/Texture2D>
31 #include <osgText/Text>
33 #include <simgear/props/props.hxx>
34 #include <simgear/structure/subsystem_mgr.hxx>
35 #include <simgear/environment/visual_enviro.hxx>
37 #include <AIModel/AIBase.hxx>
38 #include <AIModel/AIManager.hxx>
48 class wxRadarBg : public SGSubsystem, public SGPropertyChangeListener {
51 wxRadarBg ( SGPropertyNode *node );
53 virtual ~wxRadarBg ();
56 virtual void update (double dt);
57 virtual void valueChanged(SGPropertyNode*);
68 SGPropertyNode_ptr _serviceable_node;
69 SGPropertyNode_ptr _Instrument;
70 SGPropertyNode_ptr _radar_mode_control_node;
72 SGPropertyNode_ptr _user_lat_node;
73 SGPropertyNode_ptr _user_lon_node;
74 SGPropertyNode_ptr _user_heading_node;
75 SGPropertyNode_ptr _user_alt_node;
83 typedef enum { ARC, MAP, PLAN, ROSE } DisplayMode;
84 DisplayMode _display_mode;
86 string _last_switchKnob;
89 float _scale; // factor to convert nm to display units
92 float _x_offset, _y_offset;
94 double _radar_ref_rng;
97 SGPropertyNode_ptr _Tacan;
98 SGPropertyNode_ptr _Radar_controls;
100 SGPropertyNode_ptr _user_speed_east_fps_node;
101 SGPropertyNode_ptr _user_speed_north_fps_node;
103 SGPropertyNode_ptr _tacan_serviceable_node;
104 SGPropertyNode_ptr _tacan_distance_node;
105 SGPropertyNode_ptr _tacan_name_node;
106 SGPropertyNode_ptr _tacan_bearing_node;
107 SGPropertyNode_ptr _tacan_in_range_node;
109 SGPropertyNode_ptr _radar_weather_node;
110 SGPropertyNode_ptr _radar_position_node;
111 SGPropertyNode_ptr _radar_data_node;
112 SGPropertyNode_ptr _radar_symbol_node;
114 SGPropertyNode_ptr _radar_centre_node;
115 SGPropertyNode_ptr _radar_coverage_node;
116 SGPropertyNode_ptr _radar_ref_rng_node;
117 SGPropertyNode_ptr _radar_hdg_marker_node;
118 SGPropertyNode_ptr _radar_rotate_node;
119 SGPropertyNode_ptr _radar_font_node;
121 SGPropertyNode_ptr _ai_enabled_node;
123 osg::ref_ptr<osg::Texture2D> _resultTexture;
124 osg::ref_ptr<osg::Texture2D> _wxEcho;
125 osg::ref_ptr<osg::Geode> _radarGeode;
126 osg::ref_ptr<osg::Geode> _textGeode;
127 osg::Geometry *_geom;
128 osg::Vec2Array *_vertices;
129 osg::Vec2Array *_texCoords;
130 osg::Matrixf _centerTrans;
131 osg::ref_ptr<osgText::Font> _font;
133 list_of_SGWxRadarEcho _radarEchoBuffer;
137 void update_weather();
138 void update_aircraft();
140 void update_heading_marker();
141 void update_data(FGAIBase* ac, double radius, double bearing, bool selected);
143 void apply_map_offset();
145 void calcRangeBearing(double lat, double lon, double lat2, double lon2,
146 double &range, double &bearing) const;
148 bool withinRadarHorizon(double user_alt, double alt, double range);
149 bool inRadarRange(int type, double range);
151 float calcRelBearing(float bearing, float heading);
155 #endif // _INST_WXRADAR_HXX