Brandon Liu
Brandon is a cartographic technologist based in Taipei, Taiwan. He has a background in computer graphics and systems programming; some of his interests are language & localization, digital heritage, and computational map design. He's currenly working on Protomaps, a new suite of developer-friendly tools for mapmaking on the web.
bdon
Session
08-19
14:30
20min
Innovating on derivative OpenStreetMap datasets
Brandon Liu
OpenStreetMap consists of tagged nodes, ways and relations. Many use cases of geographic data, however, need a tabular dataset of points, lines and polygons. Processing OSM into derivative datasets is a crucial task that can benefit from new tools and formats. This talk will cover several topics around this theme, including:
- Existing approaches such as the Export Tool
- Why FlatGeobuf is a suitable forwards-thinking format
- Computational challenges for processing global-scale relations
- A new open-source program, Protoshapes, to generate admin polygons in FlatGeobuf format
- Efficient approaches for global datasets such as coastlines, oceans, and road connectivity
- Frequently updating datasets using the open-source OSM Express database
Software Development
Auditorium A