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Adds the missing parameter to orbdir #2

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Adds the missing parameter to orbdir #2

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12 changes: 8 additions & 4 deletions liborbital/orbdir.ks
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Original file line number Diff line number Diff line change
@@ -1,6 +1,10 @@
function orbdir {
//returns direction with vector=AN vector, up=normal
local normvec to vcrs(body:position-orbit:position,velocity:orbit).
local anvec to vcrs(normvec,V(0,1,0)).
return lookdirup(anvec,normvec).
// Returns direction with vector = AN vector, up = normal
// Parameters:
// * refNRM - normal to the orbit wrt which the the AN is taken.
// Default: V(0,1,0) - equatorial prograde orbit
parameter refNRM is V(0,1,0).
local normvec is vcrs(body:position-orbit:position,velocity:orbit).
local anvec is vcrs(normvec, refNRM).
return lookdirup(anvec, normvec).
}