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[landcover] rendering natural=wetland, wetland=* differently #1607

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openstreetmap-trac opened this issue Jul 23, 2021 · 10 comments
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Reporter: Ulf Mehlig
[Submitted to the original trac issue database at 10.19pm, Tuesday, 17th February 2009]

The tag natural=wetland can be used with additional wetland=wetland_type tags (wetland=bog, wetland=mangrove, ...). I produced a set of bitmaps for seamless rendering that possibly could be used for wetland rendering and uploaded them to wiki.openstreetmap.org

http://wiki.openstreetmap.org/wiki/Image:Wetland_marsh.png

http://wiki.openstreetmap.org/wiki/Image:Wetland_bog.png

http://wiki.openstreetmap.org/wiki/Image:Wetland_reedbed.png

http://wiki.openstreetmap.org/wiki/Image:Wetland_swamp.png

http://wiki.openstreetmap.org/wiki/Image:Wetland_tidalflat.png

http://wiki.openstreetmap.org/wiki/Image:Wetland_saltmarsh.png

http://wiki.openstreetmap.org/wiki/Image:Wetland_mangrove.png

So far, apparently wetland=bog (and the old natural=marsh) are rendered. If you find my bitmaps suitable, I would be happy if you could implement the rendering of the respective wetland types.

Thanks for your attention!
All the best, Ulf

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Author: Ulf Mehlig
[Added to the original trac issue at 6.48pm, Wednesday, 18th February 2009]

The area in

http://www.informationfreeway.org/?lat=-0.9122481245819861&lon=-46.67465208067483&zoom=15&layers=00000F0B0F

may serve as a test case; areas tagged with wetland=mangrove and wetland=marsh are currently invisible. An area where I did not change the older tagging (natural=marsh) is rendered.

Ulf

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Author: Ldp
[Added to the original trac issue at 6.18pm, Friday, 14th August 2009]

landuse=wetland rendering has been in since June. Renders the same as natural=marsh.

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Author: EdLoach
[Added to the original trac issue at 2.43pm, Friday, 18th June 2010]

For natural=wetland, wetland=tidalflat which the wiki describes as "Tidally inundated areas of bare mud, sand or similar sediments", I'd prefer a solid colour looking something like wet sandy mud if possible, please. I've been using the OS Opendata to try marking the Mean High Water as coastline and the Mean Low Water as an outer way of a natural=wetland, wetland=tidalflat multipolygon and it needs something a little more solid to make the Mean Low Water level clearer - the marsh symbol currently rendering for natural=wetland is just a bit vague. http://osm.org/go/0EH4HacT-- is an example, but as I write still shows old coastlines. Thanks.

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Author: fluteflute
[Added to the original trac issue at 8.43am, Tuesday, 10th August 2010]

I agree with EdLoach that it is important that natural=wetland is not all rendered the same.

It is incredibly frustrating trying to get local mappers to use natural=wetland along with for example wetland=tidalflat when all natural=wetland renders just as marsh (wetland=marsh). There are over 450 uses of wetland=tidalflat in OSM for example, often covering large areas - these areas deserve better rendering.

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Author: fluteflute
[Added to the original trac issue at 8.46am, Tuesday, 10th August 2010]

Duplicate closed at #2539

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Author: malcolm.herring[at]btinternet.com
[Added to the original trac issue at 8.56pm, Monday, 6th September 2010]

I agree with the sentiment of this ticket. I would however, suggest that the renderings be given a non-transparent background. It would help to delineate the area and a suitable choice of colour would add more meaning to the rendering. e.g. the existing rendering for "natural=mud" would work just fine for the "wetland=tidalflat" tag.

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Author: Ulf Mehlig
[Added to the original trac issue at 4.17pm, Wednesday, 14th December 2011]

Below two emails by Lennard and Steve, explaining mapnik-team's next step. Steve has contacted Twain asking whether he could design some appropriate wetland fills.


On Sat, 2011-12-10 at 15:19 +0000, Steve Chilton wrote:

I did ask Twain to devise some wetland fills for consideration, and am happy to go back to him and chase this along.

Steve


From: Lennard [ldp[at]xs4all.nl]
Sent: Saturday, December 10, 2011 1:57 PM
To: ulf.mehlig[at]gmx.net
Cc: mapnik-team[at]openstreetmap.org
Subject: Re: trac ticket #1607

On 10-12-2011 11:31, Ulf Mehlig wrote:

http://trac.openstreetmap.org/ticket/1607

has been in the pipeline for a very long time. What can we do to get
this resolved?

Thanks for considering ...

I've asked steve8 if he could look into that one, a while ago. The
problem was twofold: wetland=* needed to be imported as a tag (this part
is done IIRC), and the supplied example bitmaps were not entirely to taste.

Steve, do you remember how far along you got with this?

--
Lennard

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Author: math1985
[Added to the original trac issue at 3.01pm, Tuesday, 20th May 2014]

This is now being discussed on Github: gravitystorm/openstreetmap-carto#545
Therefore, I will close the issue here.

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Author: math1985
[Added to the original trac issue at 3.20pm, Tuesday, 20th May 2014]

This is in fact different from the issue on Github, so I reopen it here.

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Author: math1985
[Added to the original trac issue at 4.15pm, Monday, 28th July 2014]

This is being discussed here:
gravitystorm/openstreetmap-carto#387
So I will close the issue here.

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