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How to install Python add- ons for ArcGis and QGis

For those who are not familiar with the oddities related to the use of Python add- ons , the almost unavoidable pitfall   installation of the module. You will find yourself with a .tar.gz file and…

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Python Methods for QGis: How to access vector data (postgis, spatiality)

In this series of articles we discuss how to access vector type data in Python and QGis. In the previous article ( Python Recipes for QGis: access data vector (shapefile) ) we have discussed  how to…

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Python Methods for QGis: access to vector data (shapefile)

  In this series of articles we are going to discuss how to access the vector type of data with Python and QGis. Firstly we will discuss how to load various vector data formats (shapefile, postgis…

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Displaying marine charts with S57 QGis

The sources of information for the coastal regions are not limited to classical terrestrial sources. The marine charts can provide information very helpful and they allow creating rich and impactful documents. The most adapted sources to…

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ArcGis Model Builder: FOR and WHILE iterators

In the previous article ( ArcGIS Model Builder: expand a model to a set of input data ) we have addressed the most common iterators used with Model Builder. These iterators make it possible to apply…

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QGis 2.14 and Grass 7: how to do it?

Since QGis version 2.14, whichever the Installation chosen, it has become impossible to use Grass 7 from the window of treatments. An error message such as, or similar to the following appears at when trying to…

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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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