Even though the maps were fairly inaccurate, they helped the Spanish navigate oceans, circumnavigate the globe and amass tremendous wealth. Amerigo Vespucci (the cartographer who named the Americas after himself) used the moon and Mars to calculate the most precise measurements of latitude of his time. One of the great advances during the Age of Discovery was the refinement of latitude and longitude. They have been used to start wars, make fortunes and topple governments. Maps have played a critical role in history for thousands of years. Go to Plugins -> Manage plugins to turn them off or on. QGIS comes with several plugins and you find find some really useful third-party plugins to help your workflow. It’s a good idea to set up your plugins the first time you launch. You can arrange them by clicking and dragging. Toolbars can be controlled in turned off or on in the Toolbars menu. It’s made up of a layout area where the map is drawn surrounded by a toolbar, layers panel and a status bar.
#Tutoriel quantum gis install
The install may take a while so be patient. The wizard will install everything you need, including all the frameworks and GRASS application. Go to the Windows download page and download the QGIS installer. Everything you need to get started is in one exe file. It’s very powerful but more than we need at this point.ĭownload the QGIS package that matches your system and install it.
GRASS is another open source GIS application that can give QGIS better data management. Go to the Mac download page and download the GDAL and GSL frameworks and install them. Simply downloading the QGIS package that matches your operating system will allow you to complete the tutorial but QGIS will not function as well. Installing QGIS on a Mac can be a little complicated since it requires a few support programs to operate efficiently. QGIS Version 1.7 introduced a couple of significant changes. This QGIS tutorial was created using version 1.6. It will also give you the tools to make simple, interactive data maps that work on every platform.
#Tutoriel quantum gis how to
This QGIS tutorial will guide you through the basics, covering how GIS files work, how to edit them and how to join them with external data for analysis. Understanding how to visualize map data is an important skill but it can be intimidating. QGIS is a free, open source GIS application for Windows and Mac that provides a great starting point for journalists who want to learn to explore data with maps.
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