OpenStreetMap
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
Discussion
Kommentaar van Zverik op 2 November 2011 om 15:03
Nice work! Where did you get the coordinates?
Kommentaar van Obelixx op 2 November 2011 om 15:08
I got the coordinates from the articles in the English Wikipedia.
Kommentaar van Vclaw op 2 November 2011 om 19:35
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
Kommentaar van Obelixx op 2 November 2011 om 22:37
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!
Kommentaar van Vclaw op 3 November 2011 om 03:26
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.
Kommentaar van Zverik op 8 November 2011 om 09:39
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.