Joseph Kempf

174 Followers
378 Following
223 Posts
Geospatial Geek. Passionate advocate of #FOSS4G, #TheSpatialCommunity, #OpenStreetMap, #GISchat, & #geospatial

Have you gotten your tickets for State of the Map US yet? https://openstreetmap.us/events/state-of-the-map-us/2026/

The program can be found here: https://state-of-the-map-us-2026.sessionize.com/schedule/day/20260611

State of the Map US 2026

The Mappiest Event of the Year

The second 'London "Geo" Meetup' is scheduled to be on 8th April, and I am looking for speakers.

It doesn't matter whether you are professional/academic with years of experience or a fresher/student who's just starting with geospatial, I would love to hear your perspective.

Share about your motivation in GIS, your past, current or future projects.

If you or anyone you know would be an ideal fit, please pass this along or reach out to me at [email protected].

#geography
#Geospatial
#London

I've done a bit more #OpenStreetMap stuff this week and been bitten again by an issue I have with #StreetComplete : I don't always know when something is already on the map without a change to #OSMAnd .
This means (like today) I double add items or add a note saying 'Thing here' only to discover an hour later its actually already there.

Don't know what the solution is - perhaps an option for Street Complete to show all items in an area, not just its filtered views? Whatever it is, this keeps biting me.

How to lie with maps. I suddenly remembered quite late this evening that it's already November! Have you ever had a lot of points and wondered how to best display them? Here is an webmap of gun deaths for Cook County, Illinois playing with three approaches with varying levels of deception. #30DayMapChallenge #Points

https://geospatialgeek.maps.arcgis.com/apps/instant/interactivelegend/index.html?appid=3d9719dbdeb24da6beae92b89f3aa828

#30DayMapChallenge Day 1: Points
I mapped the tiny pene-exclave of Point Roberts, accessible only by water or by crossing an international boundary. I chose a modified antique style. I enjoy that this little bit of the US is nesteled by our 🇨🇦 neighbors.
#30daymapchallenge Day 17 (collaboration): OpenStreetMap Nodes of Leipzig Zentrum, coloured by user who edited them most recently. The way I see it, every map using OSM-Data is collaborative, but it's hard to show just how much of a collaboration it is. As of March 2025 there are 452 different users who last edited a node in this area, disregarding ways and relations. Colours were chosen at random by QGIS.
Incredible writeup from @pinakographos on how to make stylised terrain relief. Just in time for #30DayMapChallenge !

day 1 Points

Approximating housing density using UPRNs (unique postal delivery addresses)

Done using a pointillist technique, distributing points evenly over building outlines

more info (and zoomed in detail) in reply

Data from OS Open ZoomStack crown copyright and database rights

1/2 đź§µ

#30DayMapChallenge #QGIS

Changez de point de vue, la France n’en manque pas ! 🤩
Souvent symbolisés par une fleur à 10 pétales, ces sites ponctuent de rose les cartes topographiques de l'IGN.

Retrouvez toutes les cartes de nos agents Ă  l'occasion du challenge : https://www.ign.fr/mag/30DayMapChallenge-30-jours-30-cartes-pour-celebrer-la-creativite-cartographique

#30DayMapChallenge – J1 #POINTS
✍️ Benjamin SAGLIO
📊 BD TOPO ®

We have beautiful geospatial emojis in the mapstodon.space

#ArcGIS  
#cog 
#gdal  
#GoogleEarth  
#EarthEngine 
#geopandas  
#grassgis  
#NumPy  
#osgeo 
#OpenStreetMap 
#pandas 
#PostGIS  
#Postgres  
#QGIS  
#RStats 

Ă—

The second 'London "Geo" Meetup' is scheduled to be on 8th April, and I am looking for speakers.

It doesn't matter whether you are professional/academic with years of experience or a fresher/student who's just starting with geospatial, I would love to hear your perspective.

Share about your motivation in GIS, your past, current or future projects.

If you or anyone you know would be an ideal fit, please pass this along or reach out to me at [email protected].

#geography
#Geospatial
#London