Hi @jjcdejong,

The projection TMAF in your coordinate system is for transverse mercator plus an affine, which requires 7 parameters to be supplied. I think you want to use the TM projection, which only requires the single parameter for central meridian.

Hi, thanks for your reply. I do need to use these 7 parameters beacuse they vary slightly from the default values. And therfor the result is slightly different than required.

The problem is first that I do not see my coordinate system when I browse for them in FME.

And I am not sure if my definition as shown above is correct.

Thank for your help!

Hi @jjcdejong,

The seven parameters in the transformation are fine, but the coordinate system definition should have the projection set to TM, rather than TMAF. Please try changing this and re-running the conversion.

I have changed my system definition. But it does not come up when I browse foor coordinate systems. Do you have any idea why this might be?

Please remove the '\\' from the end of the last line of the datum, transformation and coordinate system definitions. The '\\' is a line continuation character, to make each definition effectively a single line.