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…
Read MoreAuthor: Atilio Francois
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…
Read MoreArcHydro: determination of the watersheds of a territory (2)
In the previous article, ArcHydro: determination of the watersheds of a territory (1), we analysed points 1, 2, and 3. In this article, we will discussed the last three points: – Segmentation of the network flow…
Read MoreArcHydro: determination of the watersheds of a territory (1)
We will use ArcHydro to calculate the different whatersheds of a given territory. It is not only important to know the different steps to achieve the desired result, but also the assumptions we will be using.…
Read MoreArcHydro: how to model the water resources of a territory: 1-Install
ArcHydro Presentation ArcHydro is a set of data models and tools that work under ARCGis to support the data analysis of superficial water resources. You can use ArcHydro to delineate and characterize the watershed lines, define…
Read MoreKML: Getting Started
KML(Keyhole Markup Language) is an XML data format used to display information in a geographical context. Just as Web browsers read and display HTML files, land-based browsers such as Google Earth read and display KML files. KML is a language readable byeveryone , composed of text and punctuation . It can be created and edited through a basic text editor, saved, and then previewed in a land-based browser . You do not need to be a wizard to master the basics of KML, and you’ll notice than this knowledge will make it possible to create powerful presentations that depict your geographical data and images on the numerous land-based free browsers such as : Google Earth, Microsoft…
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