Geographic Information System
In which direction is Italy looking?
Tutorial to calculate the exposure of the Italian territory using DEM and QGIS. Analysis of slopes and cardinal directions to find out in which direction Italy "looks".
dem
Posts related to the tag dem
PyGIS Blog
Intervisibility analysis
Find out how to perform a visibility analysis (viewshed) with Python, using the ISPRA DEM and libraries such as GeoPandas and xarray to calculate the areas visible from various observation points.
PyGIS Blog
Switch from Point to PointZ
How to add elevation to a point dataset in Python using geopandas, rasterio and rioxarray, exploring different methods to obtain Z values.
Geographic Information System
Visibility analysis
Learn how to perform a visibility analysis with QGIS and GRASS GIS to evaluate the visual impact or visual accessibility of an area. Insights into the role of DEM and key parameters.
Cogito
Having a zero error rate is impossible!
Zero error is impossible: reflections on measurements, approximations and a working experience with a "know-it-all" client.
Geographic Information System
Hydraulics&GIS: tank elevation and approach pipeline route
Learn how to use QGIS to design the optimal elevation of a reservoir and plot the route of an approach pipeline, combining raster data and GIS tools for efficient analysis.
Geographic Information System
Create a raster and a vector of the elevation bands
Learn to create a raster and elevation vector in QGIS using GRASS GIS. Step by step guide with a DEM, altimetric reclassification and conversion to polygons.
Geographic Information System
3D Open Source
Find out how to create a 3D reproduction of an area using only open source software like QGIS, without spending anything. Step by step guide using DEM, CTR and Qgis2threejs plugin.
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