Depth below horizon: new (old) functionality for QGIS viewshed analysis

The basic idea of visibility analysis is to test whether particular locations are theoretically observable from a given observer point (« theoretically » because our data and algorithms can never ideally replicate real-world situations). Such a query yields a yes/no answer for each tested point, which is typically represented as Boolean raster in GIS software. … Continue reading Depth below horizon: new (old) functionality for QGIS viewshed analysis

Installing Python packages in QGIS 3 (for Windows)

Python is in the heart of QGIS (or in the guts if you prefer), which enables us to use tons of third party Python libraries. In Linux systems, QGIS will use the main Python installation, but in Windows things get more complicated. QGIS has it's own Python, which means we end up with various Pythons … Continue reading Installing Python packages in QGIS 3 (for Windows)