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Recent diary entries

Posted by Tomas Straupis on 1 November 2023 in English.

Attack

In the sinister depths of a fellowship of the underground cartographers, known for its dark secrets, two veteran system administrators, Hat-trick and Springbok, had laboured tirelessly to maintain a cursed digital infrastructure for years. Their expertise was revered, their work likened to the dark heart of the company’s success.

On a moonless night, a group of overconfident, so-called dunkrugers challenged Hat-trick and Springbok. These individuals were unaware of the malevolent forces that dwelled within the servers, but their arrogance led them to believe they could control the sinister systems.

Ignoring the administrators’ chilling warnings, they recklessly invaded the server room, meddling with cables and initiating occult-like configurations. Their actions unleashed a torrent of unholy chaos as servers crashed, forbidden data was consumed, maps started to lie, and the very essence of the system unravelled.

See full entry

In May 2023, I discovered the existence of two websites : “The Skyscraper Center” and “Skyscraper Page”, presenting skyscrapers from all over the world and especially… skyscrapers from Pyongyang!

I took this opportunity to enrich several free projects on which I’m active: Wikidata with the creation of the elements in the first instance, combined with images from Wikimedia Commons in the second instance, to place them and link them with the OpenStreetMap data in the final instance!

Creating the skyscrapers in Wikidata

Wikidata is a database that can be very useful for the OSM project. In my case, it was very useful for tracking each skyscraper.

And it’s very well suited to adding all the skyscrapers that existed in The Skyscraper Center and Skyscraper Page for Pyongyang city.

Wikidata has a number of “properties” (PXXX) which can be used to provide a whole range of information:

  • where each building is located (P625)
  • when they were built (P571)
  • their height (P2048)
  • the number of floors (P1101), etc…

See full entry

Location: Tongdaewon 1-dong, P'yŏngyang, North Korea

TLDR: No.

Very long version: Maybe

I was inspired by Feye Andal recent post, so I’m telling my experience and providing a workflow to those who face the same problem.

Background

Recently I was looking to buy an affordable 360 camera to capture street-level imagery and obtain the processed elements that Mapillary provides (traffic signs and other points, via AI). I wanted it to use on my PhD research and of course, contribute to the OSM community and map data. The main recommendation is the now a bit old GoPro Max 360. The product is solid, and very easy to connect to Mapillary.

See full entry

Location: Sabiaguaba, Fortaleza, Região Geográfica Imediata de Fortaleza, Região Geográfica Intermediária de Fortaleza, Ceará, Northeast Region, Brazil
Posted by Ride3400 on 31 October 2023 in English.

This is my first OSM contribution: THPRD in cooperation with Arbor Lakes HOA, LLC and Finley Woods/Noyes Development have created a new Waterhouse Trail segment with easement over Finley Woods and Arbor Lakes property. I added the new trail segment to the map after recording a GPX on my phone walking the trail. I hope I did it right!

Location: North Bethany, Bethany, Washington County, Oregon, 97229, United States

Personal notes about potential mapping of the Palenque archeological site from archeological GIS data.

Source

Edwin L. Barnhart. 2001. The Palenque Mapping Project, 1998 - 2000 Final Report

Questions

  • Permission to use the data, no licence specified -> get in touch with author
  • What to map in OSM? Only visitable areas? Major buildings (ie. Templo Escondido)? Waterways? All site (lots of buildings, does it belong to OSM)? A staged approach is necessary
  • Is there any local community / interest groups to get in touch with?
  • The data looks like it’s of good quality but dates from 2001. Any updated dataset?
  • 3D mapping of certain buildings?
  • Source for naming? Limited on-the-ground names, multiple naming schemes (the source paper claims to be overcoming this in a sensible way, is it still up to date, accepted by the archeology community?) English translation for certain objects
  • Any prior work in OSM for this site or similar archeological site?

Problems

  • Data in DWF format, how to import in JOSM

TODO

Location: Palenque, Chiapas, 29960, Mexico
Posted by aaei924 on 29 October 2023 in Korean (한국어). Last updated on 31 October 2023.

공공 데이터를 이용하여 정류소 태그를 생성해 주는 도구입니다. 현재 경기도, 서울특별시 소재 정류소에만 사용 가능합니다.

https://prws.kr/osmtags/busstops


사용 방법

정류소번호나 명칭을 검색한 후 복사하고자 하는 태그 유형이 적힌 버튼을 클릭하면 텍스트 형식으로 클립보드에 복사됩니다.

태그 정보

위의 기본 태그 이외에 국문 및 영문 명칭(일부 지원)과 정류소ID, 네트워크 정보(경기도만)가 포함되어 있습니다.

유의 사항

지역별로 제공되는 데이터의 차이로 인해 일부 지역에서 생성되지 않는 태그가 존재할 수 있습니다.


업데이트 내역

  • 11월 1일: 서울특별시 정류소 지원 추가

Maplibre and Protomaps are a match made in heaven! Together they are democratizing vector maps! There’s no better time to get involved than now; let me set the scene first.

Maplibre SDK with Protomaps vector tiles, map at an angle with a video source playing drone footage video overlayed; data attribution (c) OpenStreetMaps and contributors

Maplibre is the open source map SDK forked from mapbox-gl-js when Mapbox changed their license and moved away from open source in 2020. Maplibre packages up around seven years of state of the art map renderer development and is best in class in terms of map rendering and styling vector tiles.

Protomaps is a relatively new project and it’s fundamentally changing how vector maps are distributed. Protomaps can package up the whole world into a single .pmtiles files of around 100 GB. Static hosting this single file gets us global vector tiles! Magic!

See full entry

Arquivos das apresentações realizadas no SotM Brasil 2023, que foram gentilmente disponibilizadas pelos(as) autores(as).

Para acessar as publicações (volume de anais e pôsteres,) clique aqui

Apresentações (por ordem alfabética)

AUTOMATIZAÇÃO DO PROCESSO DE IMPORTAÇÃO E CONFLAÇÃO MASSIVA NO OPENSTREETMAP

Matheus Gomes Correia, Kauê de Moraes Vestena, Gustavo Soares, Silvana Phillipi Camboim e Adelino Ferreira

See full entry

Location: Jardim Botânico, Curitiba, Região Geográfica Imediata de Curitiba, Região Metropolitana de Curitiba, Região Geográfica Intermediária de Curitiba, Paraná, South Region, Brazil
Posted by DeLouredo on 29 October 2023 in Galician (Galego).

O Baceliño, con preciosas vistas do outro lado do pobo, parte do barrio do Coutiño (ollo a estes nomes e ó cerca que están, como sinalei na foto anterior, e canto diminutivo utilizado). Nesta zona situou o PXOM do concello de Cortegada unha “casa grande”. Por desgraza, denomínana como “do Cazapedo”, cando tan topónimo inda se atopa a uns cantos metros de distancia. Mal menor sería dicirlle “do Coutiño”.

Así queda descrita na ficha patrimonial: “Edificio de planta rectangular de grandes dimensións, muros portantes de perpiaños/cachotería de granito á vista, dúas alturas e cuberta a catro augas con cubrición de tella plana. En contraposición a fachada posterior, lisa e sen vans na planta terrea, na principal destaca a presenza dun corredor e nas laterais balcóns voados con varandas de ferro”.

O código do elemento é o 6-15, a localización en plano é EX-03 e a clasificación do solo denomínase Solo de Núcleo Rural Histórico.

Captura da ficha patrimonial

See full entry

Location: O Baceliño, Casa Grande da Canliña, Louredo, Cortegada, O Ribeiro, Ourense, Galicia, España
Posted by DeLouredo on 29 October 2023 in Galician (Galego).

A Canliña. Unha zona pequena e alta situada entre A Tella e O Coutiño, cunha casa grande como referencia, lindante con terreos de escasa lonxitude e dispostos en sucalcos, con muros realizados en pedra e escaleiras integradas neles.

Ei van unhas liñas de José R. Veiga Formigo, que alí vivíu:

“Mis recuerdos son de la infancia y adolescencia. Era la casa de mis abuelos maternos y de las reuniones familiares inolvidables. Su situación es antes de llegar a Fonte da tella, a mano izquierda en un alto. Desde su balcón yo me sentaba a leer las aventuras del Capitán Trueno, y más adelante, y con otra edad, Los Gozos y las Sombras etc..”

Mapa da zona A Canliña

Location: Casa Grande da Canliña, Louredo, Cortegada, O Ribeiro, Ourense, Galicia, 32200, España
Posted by N@Mabuza on 28 October 2023 in English.

This diary is a collaboration between Ibrahim and Nombuso.

As part of the open humanitarian mapping community working group mentorship programme, all mentees were asked to produce a legacy project. As Nombuso wanted to work on data that would benefit women and girls in Eswatini and Ibrahim wanted to improve his technical skills, we decided to collaborate on one joint project.

Choosing eSwatini health data as the focus of our project.

We know that good quality health data is an asset for women and girls (to be able to find where there are services, when facilities are open and how far they might be away). So we decided to investigate how well OpenStreetMap provided information on these services for map users. First, we tried to download and consolidate all of the health data in OSM (amenity=hospital, clinic and doctors).

Map of Eswatini

See full entry

This diary is a collaboration between Ibrahim and Nombuso.

As part of the open humanitarian mapping community working group mentorship programme, all mentees were asked to produce a legacy project. As Nombuso wanted to work on data that would benefit women and girls in Eswatini and Ibrahim wanted to improve his technical skills, we decided to collaborate on one joint project.

Choosing eSwatini health data as the focus of our project.

We know that good quality health data is an asset for women and girls (to be able to find where there are services, when facilities are open and how far they might be away). So we decided to investigate how well OpenStreetMap provided information on these services for map users. First, we tried to download and consolidate all of the health data in OSM (amenity=hospital, clinic and doctors).

Map of Eswatini

See full entry

Open Geospatial Data for Disaster Recovery/Response

Fiji is a small island developing state and has been and continues to be severely affected by the obvious impacts of climate change, i.e. increase in sea level causing coastal erosion, water shortages due to salt water intrusion and the more apparent impact of the increased occurrence of extreme weather events such as tropical cyclones, storms, floods, droughts etc. Having personally experienced some of the worst tropical cyclones that has ever made landfall in Fiji, the project has been developed in light of the after effects of these extreme events. It takes time, resources and finance to begin rebuilding after a tropical cyclone hits and many are ill-prepared for this recovery process. For years, many Fijian communities have been all too aware of and much too dependent on the disaster relief packages they receive post disaster occurrence from the Fijian government, FRCS, NGOs and even international aids. However, it should be made known that there are alternative forms of assistance available for individuals, businesses etc. in regards to disaster relief/rehabilitation packages. The aim of this legacy project was to map and update points of interests entailing locations and relevant information relating to financial institutions/bodies that offer or have in the past offered disaster recovery/relief packages to members of Fijian communities within the Northern and Central divisions.

Area of study

Text

Data Collection

A survey was undertaken to gauge respondents various level of awareness of current, available disaster recovery/response packages in Fiji. In addition, certain financial institutions were also contacted via face to face office visits and through email. The financial institutions targeted are as follows; (i) Sugar Cane Grower’s Fund (ii) Tower Insurance (iii) Fiji National Provident Fund (iv) Home Finance Company Ltd

Results

See full entry

Palestra no Latinoware 2023

Tive grande satisfação em ministrar palestra sobre Geocodificação com OpenStreetMap no XX Congresso Latino-americano de Software Livre e Tecnologias Abertas - Latinoware, no dia 18 de outubro de 2023. O evento é promovido há 20 anos pela Itaipu Binacional e pelo Parque Tecnológico de Itaipu -PTI (Foz do Iguaçu, Paraná, Brasil).

img1

Três estratégias para geocodificar com Nominatim/OSM

Na palestra, apresentei os aspectos relacionados à geocodificação com dados do OpenStreetMap e três estratégias que podem ser utilizadas para esse fim:

  1. Script Python com biblioteca Geopandas + Nominatim
  2. PostgreSQL (com PostGIS), pgAdmin4 + Nominatim
  3. QGIS e Plugin MMQGIS

See full entry

Location: Cidade Universitária, Rio de Janeiro, Região Geográfica Imediata do Rio de Janeiro, Região Metropolitana do Rio de Janeiro, Região Geográfica Intermediária do Rio de Janeiro, Rio de Janeiro, Região Sudeste, Brasil