[gdal-dev] patch: s57objectclasses.csv for distance marks from IENC [add wtwdis; unlocd]

[Andreas Oxenstierna]

Hi list

see 
http://www.unece.org/fileadmin/DAM/trans/doc/finaldocs/sc3/TRANS-SC3-156s2apAe.pdf
for the Inland water S-57 profile, doc from 2001

I have not compared it against the GDAL S57 iw files or checked if there 
is a newer version

> Hi Even,
>
>> Can you submit this as a pull request by editing
> done
>    https://github.com/OSGeo/gdal/pull/2123
>
>> So you've added
>> ;wtwdis;unlocd
>> Is that right ?
> yes
>
>> Where does this come from ? I can't see that on http://www.s-57.com/ . Or are
>> they specific to the particular profile of S57 you use ?
> I also searched at http://www.s-57.com/ without success.
>
> I found the values by inspecting the object with opencpn as chart-viewer
>
> The s57 data are the official inland waterway maps from the german waterway
> administration. They are provided free of charge. (I'm a professional
> inland waterway skipper, we must use this data by low for ECDIS (chart
> display of AIS data) on all vessels longer than 20 m)
>
> e.g. Mittellandkanal https://en.wikipedia.org/wiki/Mittelland_Canal
>    https://www.elwis.de/DE/dynamisch/IENC/download_commit.php?file=WW41_2018-06-22_0_318
>
> or an overview at:
>    https://www.elwis.de/DE/Service/Inland-ENC-der-WSV/Inland-ENC-der-WSV-node.html
>
> or an example without the hassel of extracting
>    http://gpl.coulmann.de/tmp/1W7ML310.000
>
> The chart holds river kilometers with not physically installed distance
> marks. I like to use this for personal interest for locking up the
> nearest river kilometer if I have an AIS gps position of a vessel.
>
> With the patch I can export this data
>
> See also this thread:
>    (sorry, with my last post I killed the In-Reply-To:)
>     [gdal-dev] no OBJNAM/NOBJNM after extract distance marks from IENC
>     └─>Re: [gdal-dev] extract wtwdis and unlocd with distance marks from IENC
>       └─>
>         └─>
>           └─>
>
>
> Best Wulf
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-- 
Hälsningar

Andreas Oxenstierna
T-Kartor Geospatial AB
Olof Mohlins väg 12 Kristianstad
mobile: +46 733 206831
mailto: ao at t-kartor.se
http://www.t-kartor.com