84 lines
2.4 KiB
Text
84 lines
2.4 KiB
Text
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var draw_traffic = func(group, traffic, lod=0)
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{
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var a = traffic;
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var tcas_group = group;
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var callsign = a.getNode("callsign").getValue();
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# print("Drawing traffic for:", callsign );
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var lat = a.getNode("position/latitude-deg").getValue();
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var lon = a.getNode("position/longitude-deg").getValue();
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var alt = a.getNode("position/altitude-ft").getValue();
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var dist = a.getNode("radar/range-nm").getValue();
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var threatLvl = a.getNode("tcas/threat-level",1).getValue();
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var raSense = a.getNode("tcas/ra-sense",1).getValue();
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var vspeed = a.getNode("velocities/vertical-speed-fps").getValue()*60;
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var altDiff = alt - getprop("/position/altitude-ft");
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var tcas_grp = tcas_group.createChild("group", callsign);
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var text_tcas = tcas_grp.createChild("text")
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.setDrawMode( canvas.Text.TEXT )
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.setText(sprintf("%+02.0f",altDiff/100))
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.setFont("LiberationFonts/LiberationSans-Regular.ttf")
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.setColor(1,1,1)
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.setFontSize(28)
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.setAlignment("center-center");
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if (altDiff > 0)
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text_tcas.setTranslation(0,-40);
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else
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text_tcas.setTranslation(0,40);
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if(vspeed >= 500) {
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var arrow_tcas = canvas.draw_tcas_arrow_above_500(tcas_grp);
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} elsif (vspeed < 500) {
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var arrow_tcas = canvas.draw_tcas_arrow_below_500(tcas_grp);
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}
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## TODO: threat level symbols should also be moved to *.draw files
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var icon_tcas = tcas_grp.createChild("path")
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.setStrokeLineWidth(3);
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if (threatLvl == 3) {
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# resolution advisory
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icon_tcas.moveTo(-17,-17)
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.horiz(34)
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.vert(34)
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.horiz(-34)
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.close()
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.setColor(1,0,0)
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.setColorFill(1,0,0);
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text_tcas.setColor(1,0,0);
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arrow_tcas.setColor(1,0,0);
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} elsif (threatLvl == 2) {
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# traffic advisory
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icon_tcas.moveTo(-17,0)
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.arcSmallCW(17,17,0,34,0)
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.arcSmallCW(17,17,0,-34,0)
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.setColor(1,0.5,0)
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.setColorFill(1,0.5,0);
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text_tcas.setColor(1,0.5,0);
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arrow_tcas.setColor(1,0.5,0);
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} elsif (threatLvl == 1) {
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# proximate traffic
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icon_tcas.moveTo(-10,0)
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.lineTo(0,-17)
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.lineTo(10,0)
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.lineTo(0,17)
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.close()
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.setColor(1,1,1)
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.setColorFill(1,1,1);
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} else {
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# other traffic
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icon_tcas.moveTo(-10,0)
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.lineTo(0,-17)
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.lineTo(10,0)
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.lineTo(0,17)
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.close()
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.setColor(1,1,1);
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}
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tcas_grp.setGeoPosition(lat, lon)
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.set("z-index",1);
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#settimer(func drawtraffic(group), 2); # updates are handled by the model, not by the view!
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};
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