[Proj] truble to translate coordinates from WGS84 to EPSG:31287

[Jean-Claude Repetto]

Le 28/10/2010 15:49, Markus Hetzmannseder a écrit :
>
> Doing the transformation with the jhlabs-lib would require some additional
> coding for the datum transformation. Something i am not able to do with my
> tiny knowlege in both fields, java and the math behind all that
> transformations.

Applying a 7-parameters datum transformation is not that difficult ! It 
requires a matrix multiplication, a scalar multiplication and an addition :
http://en.wikipedia.org/wiki/Helmert_transformation

Jean-Claude