Stefan F. Keller

@sfkeller
285 Followers
129 Following
95 Posts
Prof. Data Engineering and GISTech, FH OST Rapperswil. Director Institute for Software. Data Scout and Enabler - Formerly "Open Whatever"! sfkeller.bsky.social
@Linux @wrzlbrnft
Aber klar:
Eine Bergpoststrasse ist eine spezielle, in der Schweiz mit einem blauen Schild und gelbem Posthorn (Signal 4.05) gekennzeichnete Verkehrsstrasse.
traffic_sign="CH:4.05"
Overpass CH https://osm.li/BIg
overpass turbo

A web based data mining tool for OpenStreetMap which runs any kind of Overpass API query and shows the results on an interactive map.

@simon @nikslor @mvexel Hi Martijn - Welcome in Switzerland!
I might have some advice for you on several aspects, both business-related and cultural. :-)
But my main question is the same as Simon's: Are you actually based here (aka not remote)?
Geospatial data integration with Apache Hop: Over 100 participants joined a webinar on “Enterprise and Geodata Integration with #Apache #Hop”, highlighting interest in open, extensible geospatial #DataEngineering and #ETL. The session introduced two new geospatial Hop plugins, outlined future... @sfkeller
https://spatialists.ch/posts/2026/02/12-geospatial-data-integration-with-apache-hop/ #GIS #GISchat #geospatial #SwissGIS
Geospatial data integration with Apache Hop – Spatialists – geospatial news

Over 100 participants joined a webinar on “Enterprise and Geodata Integration with #Apache #Hop”, highlighting interest in open, extensible geospatial #DataEngineering and #ETL. The session introduced two new geospatial Hop plugins, outlined future extensions and underscored important developments in #DataIntegration. #ASF

Spatialists – geospatial news

Webinar "Möglichkeiten der Enterprise- und Geo-Datenintegration mit Apache Hop", Di. 10.Feb. 11-12.

Eine Einführung in das Open-Source-Tool Apache Hop mit Fokus auf Geodaten. Hop ist eine Alternative u.a. zu FME oder Talend. Im Vordergrund steht die praktische Nutzung von Geodaten in Hop-Pipelines und -Workflows, insbes. die Weiterentwicklung der GIS-Plug-ins und die Einbindung externer Werkzeuge u.a. für CityGML, IFC/BIM, INTERLIS.

Infos & Anmeldung: https://www.giswiki.ch/Webinar_Apache_Hop_GIS_2026

#ApacheHop #ETL

Jetzt gibt es Lightning Talks auf der #NIAM2026!

⚡ Simon Essink: Wie schnell ist das nächste Krankenhaus erreichbar? - Ein interaktives Tool für den (Lokal-)Journalismus https://pretalx.news-infographics-analytics-maps.media/2026/talk/GL3ZEC/
⚡ Michael Neutze: Wieviel Miete zahlen meine Nachbarn? https://pretalx.news-infographics-analytics-maps.media/2026/talk/ENS9FA/
⚡ Stefan Wehrmeyer: Das Steueroasen-Verzeichnis https://pretalx.news-infographics-analytics-maps.media/2026/talk/NXXV3M/
⚡ Thiemo Frömberg: PRIELE – sein & werden https://pretalx.news-infographics-analytics-maps.media/2026/talk/SF9QNJ/

Jetzt live auf https://streaming.media.ccc.de/niam2026

Gesamtes Programm: https://pretalx.news-infographics-analytics-maps.media/2026/schedule/

Wie schnell ist das nächste Krankenhaus erreichbar? - Ein interaktives Tool für den (Lokal-)Journalismus NIAM2026

Das neue Krankenhausgesetz (KHVVG) verändert die Kliniklandschaft. Auf Grundlage einer bundesweiten 100×100m-Raster Erreichbarkeitsanalyse ermöglicht unser Tool daten- und lokaljournalistischen Redaktionen, Versorgungsszenarien flexibel zu simulieren und ihre Recherchen datenbasiert zu vertiefen.

Add amenity=ice_cream to a future version of the schema · Issue #118 · shortbread-tiles/shortbread-docs

Currently at https://taginfo.openstreetmap.org/keys/amenity#values there are 60k of these worldwide, so it's a frequently used value. Usage is spread evenly across the world https://taginfo.openstr...

GitHub
Apache Hop online user meetup: On 18 Nov, the German-speaking #Apache #Hop user community will gather online for a meetup exploring the open-source #data #orchestration platform. The program includes several talks, among them one by @sfkeller focusing on spatial data integration. https://spatialists.ch/posts/2025/10/21-apache-hop-online-user-meetup/ #GIS #GISchat #geospatial #SwissGIS
Apache Hop online user meetup – Spatialists – geospatial news

On 18 November, the German-speaking #Apache #Hop user community will gather online for a free meetup exploring the open-source #data #orchestration platform that aims to shape the future of data integration. The program includes several talks, among them one by Stefan Keller focusing on spatial data integration.

Spatialists – geospatial news
@daria @haecks Hi Daria. The “vampire mode” was implemented for the area of the city of Zurich on August 1 at 16:00 and made available on the servers of SOSM as a Proof-of-Concept.
@Rhababerbarbar We used GRASS r.sun, which uses point clouds and a terrain model, including for mountain shadows. In our case, the point clouds are swissSURFACE and the terrain is swissALTI from swisstopo. And yes, swissSURFACE3D contains buildings with roofs, trees and vegetation. What is still missing in our calculation is the gradient of the road and the road surface material (surface).

@sfkeller

can't even express how much I love those techy nerdy independend and suporting FOSS projects!