Contour lines have become a commonplace, unassuming companion of our cartographic outputs - GIS has made us forget their visual potential. Already in the 19th century cartographers experimented with shaded…

Orientation of geographic features can be an important piece of information, for instance when studying ancient field systems or analysing geological formations. The problem comes when we try to summarise…

Travailler, ce n’est peut-être pas toujours la chose la plus passionnante, mais c’est quand même plus amusant (et plus efficace) en collaboration. Il y a, dans le monde du SIG,…

Postgis is the database software for collaborative work in the GIS environment. Multiple users can connect to the database and edit the data without the fear of breaking down the…