autotest: nicer display of key data in Rascal

Tools/autotest/aircraft/Rascal/Rascal110-JSBSim-set.xml

@@ -123,16 +123,17 @@ dynamics model, and external 3D model.
       <script>
          setlistener("/sim/signals/fdm-initialized", func {
              var left  = screen.display.new(20, 10);
-             left.add("/surface-positions/right-aileron-pos-norm");
+             left.add("/apm/aileron");
-             left.add("/surface-positions/elevator-pos-norm");
+             left.add("/apm/elevator");
-             left.add("/surface-positions/rudder-pos-norm");
+             left.add("/apm/rudder");
-             left.add("/engines/engine/rpm");
+             left.add("/apm/throttle");
 
              var right = screen.display.new(-250, 20);
-             right.add("/orientation/pitch-deg");
+             right.add("/apm/pitch");
-             right.add("/orientation/roll-deg");
+             right.add("/apm/roll");
-             right.add("/position/altitude-agl-ft");
+             right.add("/apm/altitude");
-             right.add("/velocities/airspeed-kt");
+             right.add("/apm/heading");
+             right.add("/apm/airspeed");
          });
         </script>
   </rascal>

Tools/autotest/aircraft/Rascal/Systems/airdata.nas

@@ -38,3 +38,32 @@ var update_airdata = func( dt ) {
 
     setprop("/accelerations/airspeed-ktps", accel_filt);
 }
+
+round10 = func(v) {
+	if (v == nil) return 0;
+	return 0.1*int(v*10);
+}
+
+round100 = func(v) {
+	if (v == nil) return 0;
+	return 0.01*int(v*100);
+}
+
+var update_vars = func( dt ) {
+    asl_ft = getprop("/position/altitude-ft");
+    ground = getprop("/position/ground-elev-ft");
+    agl_m = (asl_ft - ground) * 0.3048;
+
+    setprop("/apm/altitude", round10(agl_m));
+
+    setprop("/apm/pitch",   round10(getprop("/orientation/pitch-deg")));
+    setprop("/apm/roll",    round10(getprop("/orientation/roll-deg")));
+    setprop("/apm/heading", round10(getprop("/orientation/heading-deg")));
+
+    setprop("/apm/aileron",  round100(getprop("/surface-positions/right-aileron-pos-norm"))); 
+    setprop("/apm/elevator", round100(getprop("/surface-positions/elevator-pos-norm"))); 
+    setprop("/apm/rudder",   round100(getprop("/surface-positions/rudder-pos-norm"))); 
+    setprop("/apm/throttle", round10(getprop("/engines/engine/rpm")));
+    # airspeed-kt is actually in feet per second (FDM NET bug)
+    setprop("/apm/airspeed", round10(0.3048*getprop("/velocities/airspeed-kt")));
+}

Tools/autotest/aircraft/Rascal/Systems/main.nas

@@ -10,6 +10,7 @@ var main_loop = func {
     last_time = time;
 
     update_airdata( dt );
+    update_vars( dt );
     update_ugear( dt );
 
     settimer(main_loop, 0);