The GIS Consultant's blog
"resource-use policy must rest on a widespread knowledge of the territory" - Ferdinando Galiani, Naples, around 1750
From CAD to GIS. Convert polylines to polygons
When I convert CAD data into GIS format the first thing I do is a topological check. It is important because in this way I can identify the open polylines that I will certainly generate
Fires in Campania
Analysis of forest fires in Campania, with a focus on the Vesuvius fire in 2017. Explores the use of satellite data to monitor damage and vegetative recovery after devastating events
Online from
08 August 2020
Reading time
2 minutes
Why do I offer online GIS courses?
Find out why I chose to offer online GIS courses and the challenges of managing an e-Learning platform. An analysis of the costs, difficulties and benefits for those seeking training in d
Online from
09 July 2020
Reading time
4 minutes
Fix invalid geometries
Learn how to fix geometry with Self-intersection errors in PostGIS using functions like ST_MakeValid, ST_IsValid, and more. A practical guide to ensuring correct topologies in your GIS data.
Online from
13 June 2020
Reading time
3 minutes
Monitor the World from Above
Sentinel-2 image analysis shows the impact of COVID-19 on the water turbidity of the Venice Lagoon and the limitations of the methodology in deep environments.
Online from
03 April 2020
Reading time
3 minutes
What is the Geoid for?
Find out what the geoid is, its relationship to the Earth's gravity and why it is essential for calculating elevations and representing the Earth's surface in GIS projects.
Online from
19 January 2020
Reading time
2 minutes
What is an ellipsoid used for?
Learn about the importance of the ellipsoid in cartographic reference systems and how it approximates the shape of the Earth for accurate GIS representations.
Online from
11 January 2020
Reading time
1 minute
From Point to PointZ
Learn how to convert a 2D point vector to 3D using QGIS and GRASS GIS geoalgorithms. Step-by-step tutorial with practical examples and attached datasets.
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.
Online from
12 September 2019
Reading time
5 minutes
Square circumscribed to the polygon
Find out how to create a square bounding box for polygons using PostGIS, with practical examples on the Municipalities of the Metropolitan City of Naples.
Online from
30 April 2019
Reading time
2 minutes