GIS coaching for territorial management.
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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The Tanaka’s contours are a method of displaying terrain developed by Professor Tanaka Kitiro in 1950. Tanaka called his technique the “Relief Contours Method”. However, it is usually called the “Illuminated Contour Method” or the “Tanaka…
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The principle of Model Builder is to create geoprocessing tools, which are by definition “batch” tools. This means that there is no interaction between the user and the processing, once launched. You define the input…
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The Voronoi maps are built based on a series of polygons created around the location of each sampling point. The Voronoï polygons are created in such a way that each location in a polygon is closer…
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The QGis resource sharing plugin is now available. This plugin makes it possible to share all type of resources for QGis: libraries of symbols , styles, images and scripts. These items can be stored remotely…
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The new version of QGis is available. Among the novelties announced in this version, the calculation of the curves hypsometric is included. Here is an article to discuss how this new algorithm works.
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Following the article Introduction to Exploratory Data Analysis for Geostatistics , we will begin to address each of the tools available for performing the exploratory analysis of spatialized data. We will start with the histograms. Histograms…
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Google announced the end of their Google Maps (Google Maps Engine) by early 2015. After January 29, 2016, the product was disabled and is no longer available. Among the different alternatives offered, Google and Esri worked…
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During World War I (1939-45) the British cartographic service was conveyed to produce a heaps of maps for all the conflict zones. In previous articles we have discussed projections used for the European theaters of war.…
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We have discussed in previous articles in depth how to access the allies’ cartography during WWII (1939-45) at the library of the University of Texas ( http://www.lib.utexas.edu/maps ). In this article we will discuss how to…
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