akkabi_oa wrote:
> I have a question about the coordinate system, which we have to use for
> FME.
>
> It's about a conversion from dgn to sdf.
> dng is RD-New , sdf must to LL-WGS84 (But which one?).
>
> WGS84 is in different types, but everytime I get not the right
> location. ( about 20m difference).
>
> Can you indicate which coordinate system I have to use?
"LL84" is the most basic version of WGS84, however there seem to have
been MapGuide installations in the past where an incorrect coordinate
transformation from RD to LL84 has been used. When additional data is
then transformed using the correct coordinate systems, that data will
not line up properly with the original data. The easiest solution is
find out which transformation was used originally and use that one for
the new data as well. Whoever set up that MapGuide installation should
be able to tell you about the transformation used.
Hope this helps.
--
Hans van der Maarel
Red Geographics
Zevenbergsepoort 44b www.redgeographics.com
4791 AE Klundert [EMAIL PROTECTED]
The Netherlands phone: +31-168-401035
For insights into what's up at Safe Software and what's on the development
horizon, visit Safe's blog at spatial-etl.blogspot.com.
Safe Software has also made slides available that outline enhancements planned
for FME 2007. The slides are from the "Road Ahead" presentation given on Day 2
of the FME Worldwide Users Conference. To view these slides, visit
www.safe.com/2006uc.
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