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.
26 #include <osg/ref_ptr>
28 #include <osg/Texture2D>
29 #include <osgText/Text>
31 #include <simgear/props/props.hxx>
32 #include <simgear/structure/subsystem_mgr.hxx>
33 #include <simgear/math/sg_geodesy.hxx>
39 #include <Navaids/positioned.hxx>
53 typedef std::set<std::string> string_set;
54 typedef std::vector<SymbolDef*> SymbolDefVector;
56 class NavDisplay : public SGSubsystem
60 NavDisplay(SGPropertyNode *node);
61 virtual ~NavDisplay();
64 virtual void update(double dt);
66 void invalidatePositionedCache()
68 _cachedItemsValid = false;
71 double textureSize() const
72 { return _textureSize; }
75 { _forceUpdate = true; }
81 double _updateInterval;
84 SGPropertyNode_ptr _serviceable_node;
85 SGPropertyNode_ptr _Instrument;
86 SGPropertyNode_ptr _radar_mode_control_node;
87 SGPropertyNode_ptr _user_heading_node;
88 SGPropertyNode_ptr _testModeNode;
92 // Convenience function for creating a property node with a
94 template<typename DefaultType>
95 SGPropertyNode *getInstrumentNode(const char *name, DefaultType value);
98 void addSymbolsToScene();
99 void addSymbolToScene(SymbolInstance* sym);
100 void limitDisplayedSymbols();
103 void foundPositionedItem(FGPositioned* pos);
104 void computePositionedPropsAndHeading(FGPositioned* pos, SGPropertyNode* nd, double& heading);
105 void computePositionedState(FGPositioned* pos, string_set& states);
107 void computeWayptPropsAndHeading(flightgear::Waypt* wpt, const SGGeod& pos, SGPropertyNode* nd, double& heading);
108 void processNavRadios();
109 FGNavRecord* processNavRadio(const SGPropertyNode_ptr& radio);
111 void computeAIStates(const SGPropertyNode* ai, string_set& states);
113 bool anyRuleForType(const std::string& type) const;
114 bool anyRuleMatches(const std::string& type, const string_set& states) const;
115 void findRules(const std::string& type, const string_set& states, SymbolDefVector& rules);
117 SymbolInstance* addSymbolInstance(const osg::Vec2& proj, double heading, SymbolDef* def, SGPropertyNode* vars);
118 void addLine(osg::Vec2 a, osg::Vec2 b, const osg::Vec4& color);
119 osg::Vec2 projectBearingRange(double bearingDeg, double rangeNm) const;
120 osg::Vec2 projectGeod(const SGGeod& geod) const;
121 bool isProjectedClipped(const osg::Vec2& projected) const;
124 void addTestSymbol(const std::string& type, const std::string& states, const SGGeod& pos, double heading, SGPropertyNode* vars);
125 void addTestSymbols();
127 std::string _texture_path;
128 unsigned int _textureSize;
130 float _scale; // factor to convert nm to display units
133 SGPropertyNode_ptr _Radar_controls;
137 SGPropertyNode_ptr _font_node;
138 SGPropertyNode_ptr _ai_enabled_node;
139 SGPropertyNode_ptr _navRadio1Node;
140 SGPropertyNode_ptr _navRadio2Node;
141 SGPropertyNode_ptr _xCenterNode, _yCenterNode;
143 osg::ref_ptr<osg::Texture2D> _resultTexture;
144 osg::ref_ptr<osg::Texture2D> _symbolTexture;
145 osg::ref_ptr<osg::Geode> _radarGeode;
146 osg::ref_ptr<osg::Geode> _textGeode;
148 osg::Geometry *_geom;
150 osg::DrawArrays* _symbolPrimSet;
151 osg::Vec2Array *_vertices;
152 osg::Vec2Array *_texCoords;
153 osg::Vec4Array* _quadColors;
155 osg::Geometry* _lineGeometry;
156 osg::DrawArrays* _linePrimSet;
157 osg::Vec2Array* _lineVertices;
158 osg::Vec4Array* _lineColors;
161 osg::Matrixf _centerTrans;
162 osg::Matrixf _projectMat;
164 osg::ref_ptr<osgText::Font> _font;
165 osg::Vec4 _font_color;
172 SGPropertyNode_ptr _rangeNode;
174 SymbolDefVector _rules;
175 FGNavRecord* _nav1Station;
176 FGNavRecord* _nav2Station;
177 std::vector<SymbolInstance*> _symbols;
178 std::set<FGPositioned*> _routeSources;
180 bool _cachedItemsValid;
182 FGPositioned::List _itemsInRange;
183 SGPropertyNode_ptr _excessDataNode;
186 std::auto_ptr<CacheListener> _cacheListener;
188 class ForceUpdateListener;
189 std::auto_ptr<ForceUpdateListener> _forceUpdateListener;
192 #endif // _INST_ND_HXX