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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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ArcGis and Python (2 ): for a good start

Have you decided to get started? It’s time to put all the assets on your side . It’s already enough complicated to learn a new language, it is useless to add pitfalls! This is a checklist…

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  1. Atilio Francois on [EN]Portable QGIS 4.0 for Windows – Download and use QGIS without installation5 June 2026

    Thank you for your feedback and for reporting these issues. The errors and the missing Processing functionality that you observed…

  2. Andrea on [EN]Portable QGIS 4.0 for Windows – Download and use QGIS without installation5 June 2026

    I've downloaded today the 7z file from https://www.sigterritoires.fr/QGis4.0Lite, then unarchived it and then launched launch_qgis_portable.bat: various errors occurs https://dcmnt.eu/pad/#/2/pad/view/-6FZXEyJYV4SyZmDWWE4XW6M7l-1JGp0V67X4tBTdjg/embed/ and…

  3. Andrea on [EN]Portable QGIS 4.0 for Windows – Download and use QGIS without installation5 June 2026

    It's not clear what are exactly the components that are missing in the "QGIS portable – lightweight version". Could you…

  4. Ed on Portable version of QGis 3.44.0 – Updated Version with Python Fixes and Authentication Support2 June 2026

    Thank you for your service to the community! Please know that you are greatly appreciated! We prefer using the Long…

  5. SERGIO SEBASTIAN VERDU on [EN]Portable QGIS 4.0 for Windows – Download and use QGIS without installation27 May 2026

    Hi Atilio, I'm very interested in downloading these versions of QGIS, but I've tried several times and the download never…

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