[Talk-it] [Imports] Fwd: Re: Sabbioneta buildings import

Giorgio Limonta giorgio.limonta80 a gmail.com
Gio 15 Feb 2018 17:13:41 UTC


Hi Andrea,


> Hi Giorgio,
>     I fixed some more spelling errors and other mistakes on the wiki page.
> Please review them.


Many thanks

Summarizing, OSM is authorized to derive works from the "Carta Tecnica
> Comunale" and to distribute them under the ODbL but you can't distribute
> the source data. If there's an argument against this, I believe it will be
> written in this ML.


yes...

Anyway the lack of the source data makes it impossible to verify the
> correct tagging. We have to trust your derived OSM file.


....

The OSM file has a source tag on each feature - please remove them. You'll
> tag the changeset with the source tag, not individual features.


Ok, done

You wrongly tagged history=memorial features as historic=monument.
> https://wiki.openstreetmap.org/wiki/Tag:historic%3Dmonument
> Please look at this recent thread on the talk-it ML about correctly
> tagging an "oratorio" (e.g. the youth centre, not the church):
> https://lists.openstreetmap.org/pipermail/talk-it/2018-February/062020.html
> OK but I don't think bell towers are places of worship. Other opinions are
> welcome.


Done thanks

What is missing in your proposal is a good tagging plan (i.e. what tags
> will be places on different features). Right now I have to look for
> features and see if they are tagged correctly.
> An (old) example is the following:
> https://wiki.openstreetmap.org/wiki/Sardegna/Import/Edificato#Tagging


Yes my tagging plan it's very simple because the import information are
poor. But I will improve the information after the import with a "classic"
mapping approach ;)

About 3D buildings
> There should be only one building tag on the outline. But you have two
> building=* and there isn't one on the building outline.
> Tags relevant for the complete building should be only on the building
> outline (e.g. amenity=place_of_worship + religion=* + denomination=* +
> name=*).
> If you want to specify different height and roof on the various parts, you
> must place a building:part tag on each of them.
> Thus 2D renderers will ignore building:part tags but they will show the
> overall building.


You right, I (think) understand that and I fixed the "not residential"
buildings

BTW, no church has got a name tag. Will you add them? When?


After the import, when I will start to search more information with some
surveys (the import it's just the first step of our work)

It is wrong to have two POI's - one as a building and one as a node.
> Anyway, I haven't understood how and when you will handle these duplicate
> features.
> BTW, what is wrong with the name "Teatro Olimpico"? You could tag the
> feature with name="Teatro all'Antica" ("all'Antica" and not "All'Antica")
> and alt_name=""Teatro Olimpico" (
> https://it.wikipedia.org/wiki/Teatro_all'Antica).


Yes, done.

Thanks again Andrea for your support.

Giorgio

2018-02-11 20:34 GMT+01:00 Andrea Musuruane <musuruan a gmail.com>:

> Hi Giorgio,
>     I fixed some more spelling errors and other mistakes on the wiki page.
> Please review them.
>
> On Fri, Feb 9, 2018 at 11:04 PM, Giorgio Limonta <
> giorgio.limonta80 a gmail.com> wrote:
>
>>
>> I am waiting clarification but I belive this doesn't stop the import (I
>> hope)
>>
>
> Summarizing, OSM is authorized to derive works from the "Carta Tecnica
> Comunale" and to distribute them under the ODbL but you can't distribute
> the source data. If there's an argument against this, I believe it will be
> written in this ML.
>
> Anyway the lack of the source data makes it impossible to verify the
> correct tagging. We have to trust your derived OSM file.
>
>
>> > The data still have some issue:
>>> >> - adjacent buildings that are not connected
>>> >> - a building has self-intersecting way
>>>
>>
>>
> The OSM file has a source tag on each feature - please remove them. You'll
> tag the changeset with the source tag, not individual features.
>
> You wrongly tagged history=memorial features as historic=monument.
> https://wiki.openstreetmap.org/wiki/Tag:historic%3Dmonument
>
> Please look at this recent thread on the talk-it ML about correctly
> tagging an "oratorio" (e.g. the youth centre, not the church):
> https://lists.openstreetmap.org/pipermail/talk-it/2018-
> February/062020.html
>
>
>> This has been discussed in the past in the talk-it ML.
>>> The tag man_made=campanile is documented in the wiki but is used only 791
>>> times. Moreover the picture refers to the Swedish Klockstapel which is
>>> completely different from a "campanile". The normal tagging for a
>>> campanile
>>> is man_made=tower + tower:type= bell_tower (used 10595 times). Even the
>>> man_made=campanile wiki page suggest to use this tagging.
>>
>>
>> Ok, at the beginning when I found "Campanile" I said "this is
>> perfect!!" and I haven't search further...
>>
>
> OK but I don't think bell towers are places of worship. Other opinions are
> welcome.
>
> What is missing in your proposal is a good tagging plan (i.e. what tags
> will be places on different features). Right now I have to look for
> features and see if they are tagged correctly.
>
> An (old) example is the following:
> https://wiki.openstreetmap.org/wiki/Sardegna/Import/Edificato#Tagging
>
> [About 3D buildings]
>
>> Your tagging is wrong. Look at the following example.
>>> [image: Inline image 1]
>>> This is a house. It is a single building. This also means you should have
>>> only one building tag on the building outline.
>>> But you made two buildings (i.e. with two building tags): one for the
>>> lower
>>> part (a multi polygon) and one for the higher part (a closed way). But
>>> different parts must be tagged with building:part as explained on
>>> https://wiki.openstreetmap.org/wiki/Simple_3D_buildings
>>
>>
>> Yes now I have understud and you are absolutely right, I fixed that and
>> the other similar cases (almost all the multipolygon).
>>
>>
> It seems you didn't understand it completely.
>
> For example, look at the following building (a church):
> https://postimg.org/image/ukj6d5j45/
>
> There should be only one building tag on the outline. But you have two
> building=* and there isn't one on the building outline.
>
> Tags relevant for the complete building should be only on the building
> outline (e.g. amenity=place_of_worship + religion=* + denomination=* +
> name=*).
>
> If you want to specify different height and roof on the various parts, you
> must place a building:part tag on each of them.
>
> Thus 2D renderers will ignore building:part tags but they will show the
> overall building.
>
> BTW, no church has got a name tag. Will you add them? When?
>
>
> Right now the plan is "The Topology Checker QGIS Plugin and the Josm
>>
>> validator to prevent most problems before uploading the data."
>>
>> Please add something about what you will do *after* the import. For
>>
>> example, you can use again the JOSM validator (on the whole OSM data and
>>
>> not only on the buildings) and/or use Osmose.
>>
>>
>> Ok
>>
>
> You still have to update the wiki page about this.
>
>
>> BTW, how will you merge POI on nodes and POI on buildings? For example the
>>
>> Teatro Olimpico and the townhall?
>>
>>
>> "Teatro Olimpico" is wrong both in the denomination and in the
>> localization. In order to not delete them I could keep both , but it could
>> be redundant .
>>
>
> It is wrong to have two POI's - one as a building and one as a node.
>
> Anyway, I haven't understood how and when you will handle these duplicate
> features.
>
> BTW, what is wrong with the name "Teatro Olimpico"? You could tag the
> feature with name="Teatro all'Antica" ("all'Antica" and not "All'Antica")
> and alt_name=""Teatro Olimpico" (https://it.wikipedia.org/
> wiki/Teatro_all'Antica).
>
> Bye,
>
> Andrea
>
>
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