[Plib-devel] Confusion with sign of pitch

[Wolfram K. <w_...@rz...>]

I have a trivial question:

If I am in a slightly ascending aeroplane, is my pitch positive?
Looking at

void sgHPRfromVec3 ( sgVec3 hpr, const sgVec3 src )

at the line

  hpr[1] = -(SGfloat) atan2 ( tmp [ 2 ], sqrt ( sgSquare ( tmp [ 0 ] )
+ sgSquare ( tmp [ 1 ] ) ) ) *
SG_RADIANS_TO_DEGREES ;

it seems to be negative, is that correct?

Bye bye,
Wolfram Kuss.