飞机动力学模型（.xml文件）

liu../

有没有人可以教我下这个代码里面的坐标怎么来的？

<control-setting axis="/controls/engines/engine[0]/throttle" value="0.2*/><control-setting axis="/controls/engines/engine[0]/mixture' value ='*1.0°/><solve-weight idx="0" weight="200.0*/><solve-weight idx="1" weight="200.0*/></approach>
<!-- Cruise configuration -->
<cruise speed="64" alt="0" fuel="1.0*>
<control-setting axis="/controls/engines/engine[0]/throttle" value="0.75"/><control-setting axis="/controls/engines/engine[0]/mixture" value=*1.0*/><control-setting axis="/controls/flight/elevator-trim" value="0.0*/><solve-weight idx="0" weight=*200.0*/><solve-weight idx="1" weight="200.0*/></cruise>
<!-- pilot's eyepoint -->
<cockpit x="-0.23" y="0" z="-0.30"/>
<fuselage ax="1.37* ay="0" az="-0.71* bx="-4.81" by="0" bz="-0.65"
width="0.71" taper="0.16" midpoint="0.17*/>
<--
I treat it as a perfectly rectangular wing for now. Note that
the dihedral is exaggerated to simulate hull-interference effects on a high-wing aircraft; once YASim models that properly, the angle should be reduced to something like 2 degrees.
Note that the J-3 Cub has no flaps. With a stall speed of 25kt, who needs them? From what I've read, the ailerons add lots of drag.
<wing x="-0.80" y="0.42" z="0.0" taper="1.0" incidence="2" twist="-3" length="4.87" chord="1.60" sweep="0" dihedral="5" camber="0.1"><stall aoa="18" width="4" peak=*1.5/>
<flap0 start=".31" end="0.85" lift="1.5" drag="1.4"/>
<control-input axis="/controls/flight/aileron" control="FLAPO" split="true"/>
<control-input axis="/controls/flight/aileron-trim" control="FLAPO" split="true"/><control-output control="FLAPO"side="left"
prop="/surface-positions/left-aileron-pos-norm"/>
<control-output control="FLAPO" side="right"
prop="/surface-positions/right-aileron-pos-norm"/>
</wing>
<hstab x=*-4.87" y="0.05" z="-0.42" taper="0.8" effectiveness="1.24"
length="1.49" chord="1.13* sweep="0"><stall aoa="16" width="4" peak=*1.5*/>
<flap0 start="0" end="1" lift=*1.4" drag="1.2"/>
<control-input axis="/controls/flight/elevator" control="FLAPO*/>
<!-- Elevator trim moves the entire stabilizer, so is particularly effective -->

Aredesss

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