diff --git a/src/meshTools/coordinateSystems/coordinateRotation/EulerCoordinateRotation.H b/src/meshTools/coordinateSystems/coordinateRotation/EulerCoordinateRotation.H index 6560a084a0cde32a953567deb2d917cdddb5b886..cdaee882322d7d95096c79d2e47fb062d453f81c 100644 --- a/src/meshTools/coordinateSystems/coordinateRotation/EulerCoordinateRotation.H +++ b/src/meshTools/coordinateSystems/coordinateRotation/EulerCoordinateRotation.H @@ -25,12 +25,17 @@ Class Foam::EulerCoordinateRotation Description - A coordinateRotation defined in the z-x-y Euler convention. + A coordinateRotation defined in the z-x-z (intrinsic) Euler convention. + + The 3 rotations are defined in the Euler intrinsic convention + (around Z, around X' and around Z''). + The order of the parameter arguments matches this rotation order. - The 3 rotations are defined in the Euler convention - (around Z, around X' and around Z'). For reference and illustration, see http://mathworld.wolfram.com/EulerAngles.html + and + https://en.wikipedia.org/wiki/Euler_angles#Conventions + Note, however, that it is the reverse transformation (local->global) that is defined here.