57 lines
1.3 KiB
Text
57 lines
1.3 KiB
Text
# See: http://wiki.flightgear.org/MapStructure
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# Class things:
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var name = 'TERRAIN';
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var parents = [canvas.SymbolLayer.Controller];
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var __self__ = caller(0)[0];
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canvas.SymbolLayer.Controller.add(name, __self__);
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canvas.SymbolLayer.add(name, {
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parents: [MultiSymbolLayer],
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type: name, # Symbol type
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df_controller: __self__, # controller to use by default -- this one
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df_options: { # default configuration options
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viewport_radius: 670
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}
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});
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var terrain_tree = "/instrumentation/terrain";
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var new = func(layer) {
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var m = {
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parents: [__self__],
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layer: layer,
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map: layer.map,
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listeners: [],
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};
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layer.searcher._equals = func(l,r) l.equals(r);
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m.addVisibilityListener();
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return m;
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};
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var del = func() {
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#print(name~".lcontroller.del()");
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foreach (var l; me.listeners)
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removelistener(l);
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};
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var searchCmd = func {
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if(me.map.getRange() == nil) return [];
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#var lat = getprop(terrain_tree~"/center/latitude-deg");
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#var lon = getprop(terrain_tree~"/center/longitude-deg");
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#if(lat == nil or lon == nil) {
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var pos = geo.aircraft_position();
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lat = pos.lat();
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lon = pos.lon();
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#}
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var result = geo.Coord.new();
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result.set_latlon(lat, lon);
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result.rangeNm = me.map.getRange();
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result.fetchRad = 184; # is this number accurate?
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result.equals = func(r){
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me.fetchRad == r.fetchRad and me.lat == r.lat and me.lon == r.lon
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};
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return [result];
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};
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