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Nasal library: Difference between revisions
→aircraftToCart(): Added this function
(→getprop(): Added get_cart_ground_intersection) |
(→aircraftToCart(): Added this function) |
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| Line 849: | Line 849: | ||
|example2 = print(abs(-1)); # prints "1" | |example2 = print(abs(-1)); # prints "1" | ||
}} | }} | ||
=== aircraftToCart() === | |||
This new function in FG 2017.2.1 takes coordinates in aircraft structural coordinate system, and translate them into geocentric coordinates. | |||
Example for (5,6,7): | |||
<syntaxhighlight lang="nasal"> | |||
var pos = aircraftToCart({x: -5, y: 6, z: -7}); | |||
var coord = geo.Coord.new(); | |||
coord.set_xyz(pos.x, pos.y, pos.z); | |||
</syntaxhighlight> | |||
Notice: x and z is inverted sign on purpose. | |||
if you want lat. lon, alt from that, just call: (degrees and meters) | |||
<syntaxhighlight lang="nasal"> | |||
coord.lat() | |||
coord.lon() | |||
coord.alt() | |||
</syntaxhighlight> | |||
=== addcommand() === | === addcommand() === | ||