Chaos Computer Club - archive feed

LOWA - LibreOffice WebAssembly. Most recent updates, working code, and ample stories of how we got to have LibreOffice run natively in a browser.

about this event: https://programm.froscon.org/2022/events/2796.html

The geospatial world is moving to cloud-first and cloud-native approaches. Movements like STAC and COG have transformed how people use raster data in the last couple of years. OpenStreetMap has much to gain from thinking about different cloud infrastructure architectures. This talk will discuss what it takes to run the OpenStreetMap ecosystem in the cloud and present the history and work on a project called [OSM Seed](https://github.com/developmentseed/osm-seed/). We learned so much while building OSM Seed and think it can be a blueprint for running OpenStreetMap on cloud infrastructure.

The OpenStreetMap ecosystem contains many open source software projects beyond the Rails application. This includes tools that are used by mappers on a daily basis, like, Overpass, Tasking Manager, iD, JOSM, tile servers, data processing applications, Nominatim and so on. It’s a complex ecosystem of growing tools. These are maintained by different individuals and organisations. OSM Seed started in 2018 after several attempts to containerise OSM software for easy installation. [I talked about this vision](https://2015.stateofthemap.us/openstreetmap-software-for-more-than-openstreetmap) in 2015 at State of the Map US. Since then, OSM Seed has grown to be a mature and heavily tested software project that now powers projects like OpenHistoricalMap and data projects at Humanitarian OpenStreetMap Team.

We learned so much while building OSM Seed and think it can be a blueprint for running OpenStreetMap on cloud infrastructure. OSM Seed uses cloud agnostic approaches through Kubernetes to bring together projects that make up what OSM is today. These projects continue to get updates and are maintained how they always have been. OSM Seed provides an interface to bring the ecosystem a little closer through better infrastructure orchestration.

In this talk, I’d like to discuss a brief history of OSM Seed, some of our lessons trying to move OSM software to the cloud, and open a conversation on what could be useful for OSM going forward.

about this event: https://2022.stateofthemap.org/sessions/HEHHCH/

about this event: https://programm.froscon.org/2022/events/2823.html

Lighting talks registered during the State of the Map conference.

## UN Maps Learning Hub

_by Séverin Ménard_

## [community.osm.org](https://community.osm.org)

_by Tobias Knerr_

## Using OSM in RPGs

... or better in VTTRPGs.

_by Marco Montanari_

## [tile.openstreetmap.jp](https://tile.openstreetmap.jp/)

Planet vector/raster tile server.

_by Taro Matsuzawa_

about this event: https://2022.stateofthemap.org/sessions/VJMH9U/

Coverage of `maxspeed` data in OpenStreetMap is very sketchy (about 12%). This situation is unlikely to change because the limits are often not signed explicitly. So, data consumers such as router software need to compensate huge holes in the data with more or less rough estimates based on other data.

This talk shall explore a method how to infer default speed limits for different vehicle and road types more precisely for each country.

about this event: https://2022.stateofthemap.org/sessions/YWH3XD/

Digital maps are ubiquitous tools in our everyday life. In the early 90s, the idea of browsing the world digitally and visiting any place was groundbreaking. The first solution to this problem is known as "TerraVision", which was breathtaking. Today, the idea of exploring your surroundings using digital maps has become normal.

But how do these maps work? In this talk, I want to provide an overview of the foundations of digital mapping solutions. Differences between maps which use vector data and rasterized satellite imaginary will be outlined. Furthermore, a new and open-source map renderer called maplibre-rs will be presented, which is created using Rust and WebGPU.

Last year I had a lot of spare time and decided to kick-start a project which combines different areas of interest: Rust, 3D rendering, Geo data

This project was adopted recently by the [MapLibre](https://maplibre.org/) project and is now known as [maplibre-rs](https://github.com/maplibre/maplibre-rs).

The maplibre-rs library is a proof of concept which showed me the complexity of mapping solutions. It takes a lot of steps until edits from OpenStreetMap contributors are finally rendered in consumer applications. With this task I want to take listeners on a journey from drawing changes in the OpenStreetMap editor all the way until vectors are uploaded to from memory to GPUs.

Like outlined in the abstract, I want to cover multiple topics:

* Foundations of digital maps (How to determine which data should be loaded? What are vector and raster tiles?)

* Show the technology stack which allows us to design and develop a cross-platform map renderer (Web, Mobile, Desktop)

about this event: https://2022.stateofthemap.org/sessions/VECREV/

Designing hyperlocal maps starts with understanding the users in their day-to-day journey through some user research method and why the current digital maps experience does not provide a complete experience for them to navigate and explore the neighborhood. This talk will provide the audience the insights into the mobility lifestyle of the local people in tier 2 cities and how the GrabMaps design team translates into mobile app design to help improve the quality of life for our users. The designer will also share what are some of the key learnings when designing for Southeast Asia.

about this event: https://2022.stateofthemap.org/sessions/YXMUVT/

Christopher Beddow takes us on a journey of how to map a small town using a variety of tools. The goal was to test and prove how much OpenStreetMap can be enriched using RapiD buildings and roads, and Mapillary map features, traffic signs, and imagery.

He evaluates a small town in the western United States that is far from any mapping community and has very little data, and demonstrates how a vivid dataset can be added to OSM. In addition, he compares this to a small town in Switzerland, demonstrating how new details can still be added to a place that is heavily mapped by a strong local community.

Mapping is a time consuming task, and challenging for an individual to do without a community or a team. However, many tools exist to enhance the capabilities of any lone map contributor, and also multiply the mapping power of a team.

Christopher Beddow takes us on a journey of how to map a small town using a variety of tools. The goal was to test and prove how much OpenStreetMap can be enriched using RapiD buildings and roads, and Mapillary map features, traffic signs, and imagery.

He evaluates a small town in the western United States that is far from any mapping community and has very little data, and demonstrates how a vivid dataset can be added to OSM. In addition, he compares this to a small town in Switzerland, demonstrating how new details can still be added to a place that is heavily mapped by a strong local community.

Leaving this talk, you will understand how to use RapiD, Mapillary, and your own creativity to adapt your own locality into a comprehensive part of OpenStreetMap.

about this event: https://2022.stateofthemap.org/sessions/SA77RH/

OSM has an unrestricted tagging model. Mappers can invent and use any tags.

While this is part of OSM's success story, it has lead to a database where

the globe is described in ever greater detail. In this talk we want to

explore how users of OSM data handle a tagging model with so few constraints.

Richard, the owner of cycle.travel, and Sarah, maintainer of Nominatim, team

up to share their experiences of a decade of working with, and occasionally

fighting against, OSM's ever evolving tagging schema.

The OSM tagging model has significantly evolved since the first streets of

London were put into the database. Not only are more and more different

objects in the database, we also capture more of their properties and want

to model ever finer nuances. This clashes with our goal to have one

database for the entire planet. The closer we look the more differences

between different regions there are. And to capture those the tagging has to

become even more complex.

Using the examples of the cycle tour planning site cycle.travel and the

search engine Nominatim, we explore the evolution of OSM tagging from

a data user's point of view. Looking at questions like

* where do data users get their information about tagging

* what kind of tagging can be practically used in software

* how to handle local defaults and assumptions

* how should OSM ideally document its tagging

about this event: https://2022.stateofthemap.org/sessions/NAF9EN/

Pre-recorded lightning talks submitted in advance by people around the world.

## Our Top 10 Data Quality Aspects

_Samson Ngumenawe_

[HOT](https://www.hotosm.org/) works with a number of organizations and communities that generate data through different contribution mechanisms, including desktop digitization, data collection surveys and local knowledge experiences. Each of these mechanisms lead to different aspects and issues that affect the quality of data contributed to OSM. We are prioritizing on minimizing the impacts of the top 10 aspects on the list through a number of ways, including mapper outreach programs, training, and developing technical tools.

## Community Mapping Initiatives in Tanga

_Antidius Kawamala_

Promoting a data-driven decision making culture in Tanga under living lab initiative, we are complementing the global objective of OSM i.e. to create a free editable geographic database of the world by various mapping activities around the region. The initiative uses local member by building capacity on how to use OSM and contributing to it as well as University Students. These mappings have been putting the missing pieces of the community on the map and addressing challenges they face so far. The usage of GIS data as a tool for community as a decision-making data tool can help in timely action and on-time problem-solving.

## Mapping all the worlds open data.

_Christopher Brown_

A showcase of how at mapstack we are building on top of OSM to create an ecosystem that will host all of the worlds open data as free to use web maps.

## Route shields of the world in OpenStreetMap-Americana

_Clay Smalley_

[OpenStreetMap-Americana](https://wiki.openstreetmap.org/wiki/OpenStreetMap_Americana) is an alpha-stage OpenStreetMap renderer intended to resemble a North American road atlas. Despite the focus on the United States, OSM-Americana has had contributions from people all over the world interested in adding support for highway route shields of their home countries. See a showcase of these contributions, and find out how you can put your country on the map.

## Bad or Good OpenStreetMap, What and how do you map?

_Enock Seth Nyamador_

OpenStreetMap editing is all welcoming, diverse and very forgiving but this leading to issues. Many of these issues which should not be occurring in the first place but happens. This is a quick talk giving you the tip of what I have come across in my short term as an OSM Contributor and why we should follow best practices.

## OSGeoLive: Your Open Source Geospatial toolbox

_Enock Seth Nyamador_

[OSGeoLive](https://live.osgeo.org) is a self-contained bootable DVD, USB thumb drive or Virtual Machine based on Lubuntu, that allows you to try a wide variety of open source geospatial software without installing anything. It is composed entirely of free software, allowing it to be freely distributed, duplicated and passed around. It provides pre-configured applications for a range of geospatial use cases, including storage, publishing, viewing, analysis and manipulation of data. It also contains sample datasets and documentation. OSGeoLive is an [OSGeo](https://wiki.openstreetmap.org/wiki/OSGeo) project used in several workshops and cases at FOSS4Gs and around the world.

## AI4Mapping: Earth Observation Data for Rapid Map Generation and DRRM

_Neyzielle Ronnicque Cadiz_

The Remote Sensing and Data Science: DATOS Help Desk by the Philippines' Department of Science and Technology- Advanced Science and Technology Institute builds on initiatives on disaster mitigation by providing a help desk pre-, during, and post-disaster events. The team provides remote sensing and data science applications support to critical activities on disaster mitigation, analysis, and advice. The project developed the Artificial Intelligence for Earth Observation (AI4EO) initiative to complement the DRRM efforts of mandated agencies in the Philippines with the goal of rapid map generation for disaster risk reduction and emergency response using earth observation and OpenStreetMap data.

## I Map Tallinn

_Ilya Zverev_

A video installation about Tallinn and Every Door editor.

## OSM checks and completeness estimations with Disaster Ninja

_Pavel Pashagin_

Disaster Ninja is an open-source tool that helps the Humanitarian OpenStreetMap Team search for unmapped areas when a disaster strikes. It can help to estimate the coverage of OSM data, and check if OSM data is up-to-date and consistent for population data.

## Women Participation in OpenStreetMap

_Nadaraj Saranya_

## OpenStreetMap in Geographic Information Science

_Rajendean Keerthana_

## State of the Map Asia 2022 Trailer Video

_Mikko Tamura_

A 1-minute teaser video about State of the Map Asia 2022.

about this event: https://2022.stateofthemap.org/sessions/HLTKHD/