I enjoy finding obscure large datasets and enjoy doing spatial analytics that I haven’t seen done before. One of the best places to find interesting data in a somewhat passive manner is to subscribe to the Data is Plural newsletter. …

I’ve been doing a lot of animated maps during the last year or so. Seriously. A lot. I have also written a blog post on how to do them. Most of these have been created using the QGIS Time Manager plugin, which is pretty awesome. Time Manager is great in…

Quite often in my data visualization weekend projects I first find an interesting set of data and after that I might (or might not) get an idea what to actually do with it. That was also the case with this story. A few weeks ago I ended up downloading the…

Searching for the nearest neighbor is a classic GIS question. What is the nearest bar from my location? How close is the nearest entrance to the metro from this road? …

Databases? Not very interesting. So might an average person working with GIS or data visualizations think. I must admit that databases aren’t the sexiest thing in the world (sorry DBA’s), but if you are claiming (or aiming) to do analytics or visualization with (spatial) data in a more serious manner…

Geography + animated gifs =geogiffery I have been posting a looooot of map animated maps lately on Twitter and quite often people ask me how can they make their own animations. I bet there are lot of ways to achieve similar results, but I am using QGIS + Time Manager…

What do you get when you combine old data with new data? Something cool and maybe even surprising. In this tutorial the old data are raster maps and new data are digital elevation models (DEM). …

I have been posting these GIF animations with the theme Optimal routes from x to n locations already for a while to my Twitter account and some people have been asking me to write a blog post on how to do those. Well, here it finally is. …