Chris Stelzmüller

🌿 CTO & Co-founder of @triply_at | I 💚 cooking, taking photos, books, fancy maps & languages | I post recipes at and write at

[Chris Stelzmüller @chrisstelz]

Today's map for day 6 - 'red' - of the #30DayMapChallenge:

Area within a 50m radius of restaurants and bars that now becomes a no-drinking-zone after closing time.

data from @openstreetmap and @OpenCommonsLinz, made using @geopandas in #python

[Chris Stelzmüller @chrisstelz]

Another year, another entry for the #30DayMapChallenge - Day 8: Blue

An interactive visualization of areas serviced by the upcoming #Wälderexpress train line in #Vorarlberg

you can also view it live at https://t.co/Bwcye1daBV :)

[Chris Stelzmüller @chrisstelz]

Today I’ll be talking with Christian Daube about @triply_at‘s journey as a sustainable startup and being a climate entrepreneur!
You can listen in live in a few minutes here https://t.co/FAG2nVudU2

#entrepreneur #ClimateActionNow @ClimateKIC

[Chris Stelzmüller @chrisstelz]

I’m looking forward to new a part of the @ClimateKIC #destination1point5 Week of Action this week!

[Location and the Web 2023 @locweb]

The first #LocWeb2021 paper "Cross-city Analysis of Location-based Sentiment in User-generated Text" is presented by @chrisstelz https://t.co/rghHKVgv77 #www21 #thewebconf

[Location and the Web 2023 @locweb]

And we are live now with the joint programme of #TempWeb and #LocWeb2021 at #WWW2021 @TheWebConf :-) Programme is here, please join us in the MITeams system: https://t.co/rghHKVgv77

[Chris Stelzmüller @chrisstelz]

Echt cooles Projekt, bin schon gespannt auf die Ergebnisse!

[Ulrich Leth - #LobauBleibt @ulrich_leth]

Crowd-Power gesucht: einfach in deine Hausgarage 🏠gehen , Parkplätze🅿️ zählen , Autos 🚗 zählen , und hier eintragen. ⬇️
https://t.co/3bM4VxZOGp

Damit wir endlich einmal wissen, wieviele private Stellplätze es in Wien gibt.

[Chris Stelzmüller @chrisstelz]

@taraskaduk @Jetbrains hast free IDEs for students and open source development and they're awesome :)

[Chris Stelzmüller @chrisstelz]

@FabianoGama @lingosteve Same! I think that's also the reason learning a language is much easier when you don't "have" to do it 😅

[Chris Stelzmüller @chrisstelz]

@lingosteve Really interesting read, Steve! I feel like patience is definitely one of the most important aspects when learning a language 😅
Do you think the flood of apps/websites for language learning is beneficial for staying focused and on learning a language or rather a bit distracting?

[Chris Stelzmüller @chrisstelz]

@DatavisLisboa Looking forward to it, sounds like a cool way to find out more about others' workflows!

[21st Century City @urbanthoughts11]

Whenever a train station is located next to a highway, there should be a sign informing about the next train in real time.
This is a proposal at the new Køge Nord station south of Copenhagen. (times based on rush hour situation)

[Chris Stelzmüller @chrisstelz]

I don't have another map for the last day of the #30DayMapChallenge, but it really was a blast! Thanks @tjukanov for all the cool prompts and thanks to everyone for the awesome #cartography and #geospatial inspirations!

[triply.at @triply_at]

Last day of the #30DayMapChallenge, theme: a map

And perfectly in time to announce the start of our collaboration with #carployee. Together, we'll help companies understand and improve their employees' mobility patterns.

[Chris Stelzmüller @chrisstelz]

@MikeCoatsDotCom Nice! @TNO_Research also made a really cool npm package for minifying geojson files that also allows you to remove unnecessary whitespace and filter which properties you want to keep or remove.

[Chris Stelzmüller @chrisstelz]

@geo_alyaqout @qgis @Photoshop @Twitter Looks really cool! Did you use photoshop only for creating the gif or do more post-processing?

[Chris Stelzmüller @chrisstelz]

#30DayMapChallenge day 27 - big or small data:
A week of tweets in Europe - big data in cities and small data on the countryside.

Also my first try working with @datashader in python.

[Chris Stelzmüller @chrisstelz]

@HishamSajid I'm usually just using @matplotlib or geoplot for static maps. I heard that @datashader is supposed to be really fast if you're working with A LOT of data, but haven't yet got to test it.

[Chris Stelzmüller @chrisstelz]

#30DayMapChallenge - Boundaries:
Number of annual new car registrations in Europe from 1990-2019.

Made in #Python @geopandas, data is from @ACEA_eu @EU_Eurostat and @OECD_Stat

[Chris Stelzmüller @chrisstelz]

Ahhh, totally overlooked that 😅