ArcGis and Python: before starting
Getting started with Python in ArcGIS is easier than it looks. There is no need to master Python in order to use it in a basic way in our work with ArcGIS. First of all, there are…
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Google StreetView and Bing Bird’s Eye in ArcGis and QGis
How to open a window with Street View and Bing Bird’s Eye using your QGis Mapping ArcMap window? Easy, follow the guide …
Read MoreQGis and WEB: an update
The WEB is no longer reserved for large accounts. The technical means and the costs of the solutions are no longer an obstacle for everyone to publish on the WEB their data and maps. But this development has gone hand in hand with a multiplication of technical solutions and the main obstacle, today, is to choose the…
Read MoreUpdated 28/04/2017Migrate postgresql databases with PgAdmin4: problems and solutions
The problem discussed in this article has been solved by the pgAdmin team (tested on the pgAdmin 1.4). If you come across this problem and you have a pgAdmin version older than version 4, just…
Read MoreAccuracy, uncertainty and linear alteration of geographic data (2)
In the previous article we discussed the different geographic coordinate systems: astronomical, geocentric and geodetic coordinates. Let’s have a look at the possible sources of error.
Read MoreAccuracy, uncertainty and linear alteration of geographic data (1)
It is not easy, in geomatics, to get a good grasp of the geodesy notions that underlie the manipulation of geographic data. Unfortunately, many users do not have a sound knowledge of these concepts. I have…
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