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#1 2020-05-27 09:33:45

kannix
Member
From: Ruhrgebiet
Registered: 2013-10-27
Posts: 147
Website

seamark:type=cable_overhead

Rework of inland-waterway routing is on my agenda: https://github.com/abrensch/brouter/issues/233

I came across some issues on seamark:type=cable_overhead:
https://taginfo.openstreetmap.org/searc … e_overhead

According to https://wiki.openstreetmap.org/wiki/Sea … rk_Objects
only these attributes are valid:
- category
- clearance_height
- clearance_height_safe

Help consolidating tags is welcome!

Last edited by kannix (2020-05-27 14:38:03)

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#2 2020-05-27 19:28:00

AdVerburg
Member
From: Goes, the Netherlands
Registered: 2016-01-23
Posts: 17

Re: seamark:type=cable_overhead

seamark:type=cable_overhead ← needed
seamark:cable_overhead:category=transmission ← uninsulated cables  | power ← (isolated) cable See https://wiki.openstreetmap.org/wiki/Sea … 8CATCBL.29

seamark:cable_overhead:clearance_height_safe=* ← valid, renders a node and a way as well on the standard map
With a height less then noted, a safe passage is guaranteed.

seamark:cable_overhead:clearance_height=* ← valid, renders a node and a way as well on the standard map
"This height is the physical height, passage with this height is only possible when the power is switched off." ← My interpretation

seamark:cable_overhead:vertical_clearance_safe ← is NOT valid, does not render (264 used as node in Germany)
and should be replaced by seamark:cable_overhead:clearance_height_safe=*

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#3 2020-05-28 05:40:13

malcolmh
Member
From: Hull, UK
Registered: 2012-09-05
Posts: 194

Re: seamark:type=cable_overhead

Thanks for spotting this. I discovered that the renderer, wiki & INT-1 preset all used different values, hence the problem in the database. I have fixed the preset & edited the wiki & database to bring all into line with the renderer.

I made the corrections yesterday evening, so all the corrections in the database should have rendered by now


Malcolm Herring, Developer

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#4 2020-05-28 08:41:16

kannix
Member
From: Ruhrgebiet
Registered: 2013-10-27
Posts: 147
Website

Re: seamark:type=cable_overhead

Well done, thanks a lot!

Other issue:
There should be no 'clearance_height_safe'
https://taginfo.openstreetmap.org/keys/ … eight_safe
(see https://wiki.openstreetmap.org/wiki/Sea … Clearances )

Last edited by kannix (2020-05-28 17:08:42)

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#5 2020-05-28 10:07:03

AdVerburg
Member
From: Goes, the Netherlands
Registered: 2016-01-23
Posts: 17

Re: seamark:type=cable_overhead

Some authorities (at least the Flemish) give two values for the height.
One to be considered as "safe" or permitted and a higher value as the absolute limit. (In the example hereunder: 9.08 metre and 9.38 metre.)
An example source: https://www.visuris.be/default.aspx?pat … B011100107
May be seamark:bridge:clearance_height_safe=* should be added to the wiki?
Or do not add to the wiki and just use the low / safe value to tag the bridges?

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#6 2020-05-29 07:02:25

kannix
Member
From: Ruhrgebiet
Registered: 2013-10-27
Posts: 147
Website

Re: seamark:type=cable_overhead

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#7 2020-05-30 12:23:11

kannix
Member
From: Ruhrgebiet
Registered: 2013-10-27
Posts: 147
Website

Re: seamark:type=cable_overhead

an other issue: 'maxdraft',  'maxdraught', 'draft'

consolidation needed, please add comments:
https://wiki.openstreetmap.org/wiki/Tal … imitations

‘maxdraft’ is my favorite since ‘draft’ denotes the vessel and not the waterway...

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