Pirmin Kalberer

Pirmin is a geospatial software developer since more than 20 years and has contributed to several Open Source projects. Pirmin is co-founder of Sourcepole, a Swiss company providing GIS services and solutions.


Sessions

12-04
16:15
30min
Shortbread - the new OpenStreetMap vector tile schema
Pirmin Kalberer

Shortbread is an open schema for OSM vector tiles. It is intended to be a basic, lean, general-purpose vector tile schema for OpenStreetMap data.

For creating and extending OSM vector tiles, workflows using Tilemaker, Planetiler and osm2pgsql Themepark are compared.

Since vector tiles are styled in the browser, the styling can be changed at runtime. This talk shows the tooling for customizing styles, but also goes into extending vector tile content with additional data for special interests.

State of software
Room IV
12-05
10:00
30min
Serving live maps with vector tiles
Pirmin Kalberer

Vector tiles are an efficient way to serve maps with a high volume of live data. IoT applications or maps with weather, traffic or other live data require a compact format for transmitting updated data. Vector tiles with their powerful styling capabilities are supported by several Javascript map viewers.

This talks shows how to disply live data with MapLibre and OpenLayers. On the server side BBOX is used to serve tiles from a PostGIS database.

Use cases & applications
Room IV
12-05
14:00
30min
Farewell Web Mercator
Pirmin Kalberer

Most of today's web maps are using the Web Mercator projection. A major issue of Web Mercator is the distortion of area sizes far from the equator.

In 2018 Bojan Šavrič, Tom Patterson and Bernhard Jenny published their work on the Equal Earth map projection, an equal-area projection for world maps.

This talk shows how to use the Equal Earth map projection for web mapping with different kind of data sources.

A growing collection of information about using Equal Earth is available at equal.bbox.earth.

Use cases & applications
Room IV