Yearly Archives: 2022


How to read input from a file in a batch script

Windows batch scripts are incredibly useful for processing data. You can automate many tasks by a simple batch file. The most common thing that I use is a for loop over all files of a certain file name pattern, often extension: for %%I in (*.laz) do ( do something with […]


Hoe de bijtelling de autoverkoop stuurt

Wat is bijtelling? Als een werknemer voor zijn werkgever een auto beschikbaar gesteld krijgt, die hij of zij ook privé gebruikt (vanaf 500 km per jaar) , dan ziet de fiscus dit als een soort van salaris. Daarom wordt een fictief bedrag (de bijtelling) bij het salaris opgeteld, waarover loonheffing […]


Infinity releases maart 2022

In maart krijgen we vijf nieuwe releases, waaronder twee booster packs voor Nomads en Ariadna. Nomads Booster Pack Alpha Ariadna Booster Pack Alpha Hundun Ambush Unit (Heavy RL) Probots Valerya Gromoz


Displaying your position in a Leaflet viewer

A colleague asked my whether it would be possible to view the current location of a user in a Leaflet-based GIS viewer. Luckily, this is very easy to do, as explained in this tutorial. All you need to add to the code of my previous example is the following code: […]


Computing the accuracy of GNSS baselines

When designing a surveying network, it is important to know the accuracy of your observations in order to get a realistic estimate of the accuracy that can be achieved for the coordinates. For traditional observations such as total stations angles and distances, we usually rely on manufacturer specifications and experience. […]


Creating a map of Covid cases per municipality in QGIS

Since the beginning of Covid-19, I’ve from time to time downloaded the official Dutch Covid-19 statistics (available here) and created my own plots, using a Jupyter Python notebook that you can find over on Github. But it’s also interesting to view maps instead of only timeline plots. Unfortunately, the official […]