patch: s57objectclasses.csv for distance marks from IENC [add wtwdis;… #2123
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Can you edit the commit message with complementary information provided in the gdal-dev thread ? |
added 2 commits
December 19, 2019 16:06
> 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. also: http://www.unece.org/fileadmin/DAM/trans/doc/finaldocs/sc3/TRANS-SC3-156s2apAe.pdf does not mention wtwdis or unlocd as attribut for dismar, but mention it as Attribut but I may not really understand the standard ... 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
…ouille/gdal into wtwdis_unlocd_for_distance_mark
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