November 2018
Beginner to intermediate
272 pages
5h 36m
English
Content preview from Learn QGIS - Fourth Edition
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Projections
The default projection for QGIS (on load the first time) has the EPSG code 4326 (WGS 84). Unless changed, the default settings in QGIS allow the projection of the map to be set by the projection of the first layer loaded into the map, assuming that the data has a projection associated to it. If you are interested in learning more about this, a good starting point is the QGIS entry on Geographic Coordinate Systems: https://docs.qgis.org/testing/en/docs/gentle_gis_introduction/coordinate_reference_systems.html
Suffice it to say that getting the projection correct in your GIS is fundamental to any analysis, mapping, or derivation of knowledge from your data. The world is not flat, and projecting your data is the process of taking ...
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