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GIS coaching for territorial management.

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Author: Atilio Francois

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How to manage the South Italy projection with ArcGis and QGis.

The reference website for coordinate systems used during World War II is Thierry Arsicaud’s website : Notes on the “Modified British System” used on the European Theatre of Operations during the WWII. In 1919, Great Britain…

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The War North projection, how to manage it with ArcGis.

Origin of the War North projection Here is an excerpt of the thesis defended in November 2005 by Nicolas Guilhot, currently Lecturer in History and Management at IFROSS – University Lyon 3, at the Graduate School…

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Tutorial: How to create an aptitude map with ArcMap, with and without fuzzy criteria (4)

So far we have dealt, simultaneously, with both methods of data processing corresponding to the different criteria for classifying the plots according to their ability to host a new school. Both methods have resulted in some…

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ArcGis 10.3: apply a license to your geodatabase? ludicrous !

With version 10.3, ESRI has announced a new possibility for the geodatabase file: you can make them non-copy and you can give them a deadline access date. Firstly, let’s discuss all you have to do, then…

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ArcGis: Multiple attribute (1-n) spatial join

Joins between tables or layers pose virtually no problem when we have a unique match between the two elements we are trying to join. For one record of the reference table or layer, there is one…

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ArcGis and Python (3 ): Your first script

If you have read the two previous articles   ArcGis and Python: Before your first steps and   ArcGis and Python: getting started , you are ready to get started. There are two things you need…

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Recent articles

  • Converting a raster into fuzzy values with FuzzyAttributes V2
  • Consultation and negotiation: the contribution of fuzzy logic
  • PostGIS 3.6 released – 3D, raster, and topology take a leap forward
  • Creating awareness maps with QGIS: the equivalent of the Above and Below style
  • From Boolean analysis to fuzzy logic in a GIS: a concrete example

Recent comments

  1. Atilio Francois on How to develop an application with pgrouting in Windows (1)25 August 2025

    You're right — since 2019 Geofabrik no longer provides plain `.osm` files, only the compressed `.osm.pbf` format. The tool **osm2pgrouting**…

  2. Simon on How to develop an application with pgrouting in Windows (1)25 August 2025

    The osm downloads don't appear to be available, just osm.pfb And osm2pgrouting on Windows doesn't like pbf "not well formed…

  3. Arno on Portable version of QGis 3.32.021 August 2025

    I just want to thank you. It works.

  4. Atilio Francois on Portable version of QGis 3.32.015 May 2025

    What is the link between the qgis update and the portable version? A portable version cannot be updated; it must…

  5. Hugo on Portable version of QGis 3.32.014 May 2025

    For me, the error message complaining that qgis_app.dll is missing started appearing following the most recent QGIS update.

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