[OSM-talk] waterways through water bodies

Wed Jun 23 19:45:36 UTC 2021

There is another variant of this: rivers that end in a body of shallow
water, or even traverse it shallow lagoons (very visoble examples in the
lagoon of Venice). The rivers continue, often as navigable "canals", in the
shallower water of the lagoon. In the Venice lagoon most have names and and
are marked by wooden posts. The tagging us not uniform in OSM.

On Wed, 23 Jun 2021, 12:52 , <talk-request at openstreetmap.org> wrote:

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> Today's Topics:
>
>    1. Re: Persian/Arabian Gulf Tagging (Abdullah Abdulrhman)
>    2. Re: waterways through water bodies (Martin Koppenhoefer)
>    3. Re: waterways through water bodies (yvecai)
>    4. Re: waterways through water bodies (Martin Koppenhoefer)
>    5. App maps shady spots to guide Barcelona walkers along cooler
>       routes | The Guardian (Andy Mabbett)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 22 Jun 2021 20:13:37 +0000
> From: Abdullah Abdulrhman <abdullahOSM at outlook.com>
> To: "enejati at mail.um.ac.ir" <enejati at mail.um.ac.ir>,
>         "talk at openstreetmap.org" <talk at openstreetmap.org>
> Subject: Re: [OSM-talk] Persian/Arabian Gulf Tagging
> Message-ID:
>         <
> AM0PR07MB4435FBDC0D0CCA423971C4B8C8099 at AM0PR07MB4435.eurprd07.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> See reply of "Saeed Hubaishan" on this mail:
> https://lists.openstreetmap.org/pipermail/talk/2021-June/086640.html
>
> And as for what happened in the Telegram group, it was documented with
> pictures, and the administrators of the group deleted it after raising this
> topic in the mailing list.
>
> Another thing is that I didn't get a copy of your reply and saw it in the
> talk archive and didn't find it in the spam folder, which raised my
> suspicions that your mail provider might have blocked the message and the
> mailing list doesn't duplicate the message (and I deactivated this feature
> from the mailing list settings)
>
> ________________________________
> Hello Abdullah,
> Thank you for your comment.
>
>
> Though I think having one `name` tag doesn't cover the super complex
> situation "on the ground", I like to ask some question about this
> approach.
>
> > First: if there are disputes over the name, the rule in OSM is
> > "On the Ground Rule" as found on the wiki page:
> > https://wiki.openstreetmap.org/wiki/Disputes#On_the_Ground_Rule
>
> Here is a quote from your provided link: "simple default rule is
> whatever name are used by the people on the ground at that location are
> used." so here are my questions:
>
> 1. Considering the population of each country on the gulf area, what
> percentage of people living there would identify it as "Persian Gulf",
> "Arabian Gulf" or just "The Gulf"?
>
> 2. What percentage do you think is enough for a name to be _mentioned_
> in the `name` tagging?
>
>
> > the incitement to this sabotage strongly encouraged OSM Iranian
> > telegram group
>
> As I mentioned earlier, we never have or will encourage or approve of
> vandalism in other countries in our community. Please provide proofs
> alongside your accusations.
>
>
> I'll be glad to hear your answers.
>
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> ------------------------------
>
> Message: 2
> Date: Wed, 23 Jun 2021 10:19:05 +0200
> From: Martin Koppenhoefer <dieterdreist at gmail.com>
> To: Pierre Béland <pierzenh at yahoo.fr>
> Cc: OpenStreetMap <talk at openstreetmap.org>
> Subject: Re: [OSM-talk] waterways through water bodies
> Message-ID: <F2C054AE-C807-4628-B9ED-871376A45CA6 at gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
>
>
> sent from a phone
>
> > On 22 Jun 2021, at 21:33, Pierre Béland via talk <talk at openstreetmap.org>
> wrote:
> >
> > See for example this 893km long river « La Grande Rivière »
> > OSM relation    https://www.openstreetmap.org/relation/12523071
> > Wikipedia map
> https://fr.wikipedia.org/wiki/La_Grande_Rivi%C3%A8re#/map/0
>
>
> I don’t understand the course of this river, it keeps flowing in huge
> lakes (typically in a big lake there isn’t river flow) where it also takes
> strange turns, and why is the lake at its beginning then not a part of it?
>
> Cheers Martin
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> ------------------------------
>
> Message: 3
> Date: Wed, 23 Jun 2021 11:32:45 +0200
> From: yvecai <ycai at mailbox.org>
> To: talk at openstreetmap.org
> Subject: Re: [OSM-talk] waterways through water bodies
> Message-ID: <6fa8c2cb-c7aa-43da-7631-02c016aa657b at mailbox.org>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 23.06.21 10:19, Martin Koppenhoefer wrote:
> > I don’t understand the course of this river, it keeps flowing in huge
> > lakes (typically in a big lake there isn’t river flow) where it also
> > takes strange turns, and why is the lake at its beginning then not a
> > part of it?
>
> What is shown here is the river modellized with OSM's common datamodel
> where a river is represented with a connected set of ways, some of them
> crossing trough lakes with a subjective path. What this simple datamodel
> doesn't show, is the complex water flow trough water bodies.
>
> I guess you are free to replace the ways with your own subjective path
> if you feel like to.
>
> Regards,
>
> Yves
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 23 Jun 2021 12:28:27 +0200
> From: Martin Koppenhoefer <dieterdreist at gmail.com>
> To: yvecai <ycai at mailbox.org>
> Cc: osm <talk at openstreetmap.org>
> Subject: Re: [OSM-talk] waterways through water bodies
> Message-ID:
>         <CABPTjTBndB4Cy6=
> 3KKxaH3WPSvpgZVLxvhyqEw9W+845Oun5uQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Am Mi., 23. Juni 2021 um 11:37 Uhr schrieb yvecai via talk <
> talk at openstreetmap.org>:
>
> > What is shown here is the river modellized with OSM's common datamodel
> > where a river is represented with a connected set of ways, some of them
> > crossing trough lakes with a subjective path. What this simple datamodel
> > doesn't show, is the complex water flow trough water bodies.
> >
> > I guess you are free to replace the ways with your own subjective path
> > if you feel like to.
>
>
>
> there are (at least, and related to this topic) 2 fractions of mappers, I
> just wanted to raise awareness that mapping rivers where there often aren't
> (in lakes), is not the only common way of mapping. You could also leave
> gaps for example.
>
> Cheers,
> Martin
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> ------------------------------
>
> Message: 5
> Date: Wed, 23 Jun 2021 11:46:21 +0100
> From: Andy Mabbett <andy at pigsonthewing.org.uk>
> To: OSM talk mailing list <talk at openstreetmap.org>
> Subject: [OSM-talk] App maps shady spots to guide Barcelona walkers
>         along cooler routes | The Guardian
> Message-ID:
>         <CABiXOE=SYez2fps6=NjRAAj54qEbBpG7N=
> rN+Qen5PawDOiu6g at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> This may be of interest:
>
>    https://www.theguardian.com/ environment/2021/jun/23/cool-
> walks-app-maps-shady-spots- barcelona
>
> --
> Andy Mabbett
> @pigsonthewing
> http://pigsonthewing.org.uk
>
>
>
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> End of talk Digest, Vol 202, Issue 20
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