[Proj] +towgs84 approximation error

Jochem jochem.lesparre at kadaster.nl
Wed Mar 22 18:13:40 PDT 2017


Hi Noel,

My preference is Rz Ry Rx because this is how it is mentioned in my geodesy
text books. This could be different in other countries (like positive and
negative the rotation direction). The order Rz Ry Rx is also the order used
by EPSG which is the source of most of the parameters used by PROJ.4. I
think that is a good reason to keep to that order.

Reference:
http://www.iogp.org/pubs/373-07-2.pdf
<http://www.iogp.org/pubs/373-07-2.pdf>   (page 134)

Regards, Jochem 



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