OpenStreetMap 開放街圖
I added all HVDC Overhead Powerlines ( inclusive electrode lines - with one exception) according the coordinates to Open Street Map, if they were not already shown
These lines are
* Baltic-Cable ( http://en.wikipedia.org/wiki/Baltic-Cable )
* Konti-Skan ( http://en.wikipedia.org/wiki/Konti-Skan )
* Cross-Skagerrak ( http://en.wikipedia.org/wiki/Cross-Skagerrak )
* HVDC Gotland ( http://en.wikipedia.org/wiki/HVDC_Gotland )
* Fenno-Skan ( http://en.wikipedia.org/wiki/Fenno%E2%80%93Skan )
* HVDC Italy-Greece ( http://en.wikipedia.org/wiki/HVDC_Italy%E2%80%93Greece )
* HVDC Volgograd-Donbass ( http://en.wikipedia.org/wiki/HVDC_Volgograd%E2%80%93Donbass )
* SACOI ( http://en.wikipedia.org/wiki/HVDC_Italy%E2%80%93Corsica%E2%80%93Sardinia )
However, I was not able to add the electrode line of SACOI on Corse, as I do not know where it runs ( it looks like a 20 kV line with 2 conductors and such objects can be barely detected on satellite pictures).
Also I was not able to add the electrode line of HVDC Volgograd-Donbass in Volgograd area, as it is not clearly shown.
Hereby people in Bastia area and Volgograd can help.
In both cases
討論
由 Zverik 於 2011年11月 2日 15時03分 發表的評論
Nice work! Where did you get the coordinates?
由 Obelixx 於 2011年11月 2日 15時08分 發表的評論
I got the coordinates from the articles in the English Wikipedia.
由 Vclaw 於 2011年11月 2日 19時35分 發表的評論
Many of the coordinates in Wikipedia are actually copied from other sources, which may be copyright. A lot has been copied from Google Maps, or from various national mapping agencies (eg the Ordnance Survey in Great Britain).
So they are not actually under a suitable licence for copying/importing to OpenStreetMap.
See this page: osm.wiki/Collaboration_with_Wikipedia#Importing_geodata_from_Wikipedia
由 Obelixx 於 2011年11月 2日 22時37分 發表的評論
Each fix object on earth should have the same coordinate value in a given coordinate system independent of the source, where it comes from. If this is not the case, one source must have somewhere an error!
由 Vclaw 於 2011年11月 3日 03時26分 發表的評論
It is not a question of whether the coordinates are an error or not. It is a matter of copyright. See this page: osm.wiki/Copyright
Specifically "Do not use data from copyrighted maps or any other proprietary data!"
It is not clear whether those coordinates from Wikipedia are from copyrighted maps (eg Google Maps) or not. So please don't add them to OpenStreetMap.
由 Zverik 於 2011年11月 8日 09時39分 發表的評論
Actually, the source is explicitly stated on some listed wiki pages: "Right of way of HVDC Volgograd–Donbass, according Google-Maps. May be imperfect due to low resolution." So, this is not suitable for OSM.