[Imports] Spanish mountain ranges import.

[Matheus Gomes]

Dear all,

It came as a surprise to me this discussion, mainly because, as far as I know (I'm not Spanish but I mapped there sometimes), the Spanish data (from Instituto Geográfico Nacional) is usually very good, and the local community is doing several imports beautifully (I have yet to see a better Wiki page than the Spanish buildings import [1]).

I understand the community concerns regarding the data (as all imports should receive some special attention), but I think there is some overreaction that is not productive. The wiki is reasonably well written, and regarding verifiability, what exactly the mappers are expecting? The Topo IGN map, per [2], shows initially that the data used to exemplify the import looks very good.

Spain is a mountainous country and OSM must reflect that, so that specific data is very important in my opinion. Also, the data only has location and name, so there is no hurt in OSM.

Regarding the discussion pointed by Christoph Hormann, I got very sad reading Anders Torger decision to stop mapping natural elements (after 600,000 edits!) just because of the 'verifiability' principle on OSM. Those small things (and many others) are discouraging people of mapping OSM. I don't want to enter into a philosophical discussion here, but people don't use OSM because it lacks data, and when you try to import very good data, you can't also do it, so people stop mapping in OSM, leading to a poor map. What's the point of all that? I truly don't understand it.

@Sergio/Spanish community, you have all my support in proceeding to that import. It looks good, the data is good, the wiki is ok and OSM lacks that specific data. Anything other than that is just non-sense, just to keep my language polite.

Best regards,
Matheus Gomes

[1] https://wiki.openstreetmap.org/wiki/Spanish_Cadastre/Buildings_Import
[2] https://wiki.openstreetmap.org/w/images/5/54/Ejemplo_Importaci%C3%B3n_mountain_range2.png
________________________________
De: Sergio Quintero <squinterog75 at gmail.com>
Enviado: sexta-feira, 5 de fevereiro de 2021 05:39
Para: imports at openstreetmap.org <imports at openstreetmap.org>
Assunto: [Imports] Spanish mountain ranges import.


Dear community:

Despite of the fact that mountain ranges are an essential element on all kind of maps (and on topographical maps in particular), this key elements are still poorly covered in Spain, a mountainous country with thousands of small mountain ranges all over the territory.

Because of this, a few weeks ago I started to manually map the mountain ranges of my region, with the official MTN25 (National Topographic Map - we have express permission to use it in OSM) as a source. However, I quickly realized that mountain ranges are a particularly easy and suitable element to import, given the following facts:

-It is a very important element in any map, specifically in Spanish topographical maps (there are nearly 5400 mountain ranges -spanish "Sierras"- in the MTN25)
-Despite its importance, it's a very poorly mapped element so far > No duplication problems.
-It is an element that, by definition, cannot interact in any way with other pre-existing elements on the map > No integration problems.
-We have an official, well-organized, documented, reliable, verifiable and accurate source of data > No verifiability problems.
-We have explicit permission to use this data > No license problems.

The source we plan to use is the NGBE (Nomenclator Geográfico Básico de España), the main source of its kind from the IGN (Instituyo Geográfico Nacional), which is the main national geographical authority in Spain. The data is published under a CC BY 4.0 license and we have explicit permission from the IGN to use it:
https://wiki.openstreetmap.org/wiki/ES:Importaci%C3%B3n_IGN<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.openstreetmap.org%2Fwiki%2FES%3AImportaci%25C3%25B3n_IGN&data=04%7C01%7C%7Ce41598b607054a69c06508d8c9d4d801%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637481263279990298%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=daXgt4mLW8H1qiCZPsHUi195%2FZBUctTptJdOTRVQxlQ%3D&reserved=0>

The mountain ranges will be imported as nodes, which is the recommended way to map these elements in the wiki documentation. The details of the import have been discussed in the Spanish mailing list, and can be found in the wiki prepared for this purpose, please don't hesitate to ask about specific aspects or translation if necessary:
https://wiki.openstreetmap.org/wiki/ES:Importaci%C3%B3n_NGBE_Alineaciones_monta%C3%B1osas<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.openstreetmap.org%2Fwiki%2FES%3AImportaci%25C3%25B3n_NGBE_Alineaciones_monta%25C3%25B1osas&data=04%7C01%7C%7Ce41598b607054a69c06508d8c9d4d801%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637481263279990298%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=tQqY%2BZ%2BdQGJArU5QyCzsi7kb7SUGcDvd2e7EeQw4kbs%3D&reserved=0>

I look forward to your comments, questions and clarifications. Thank you very much in advance,

Sergio
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