Enjoy your drink on a sunny terrace thanks to open data


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How to find the perfect place to laze on the terrace with a drink? Thanks to the Jveuxdusoleil.fr website, which offers an interactive map detailing the areas of sunshine throughout the day.

Dominic Alves – Flickr – CC BY 2.0

With the return of sunny days, perhaps you would like to enjoy a beer on the terrace at the end of a hard day’s work. Problem, how to find the right spot? The one that will allow you to enjoy the sun from the first sip to the last? If you are not a geographer or meteorologist, the best solution is undoubtedly the Jveuxdusoleil.fr website.

Accessible on computer as on mobile phone, this interactive map allows to visualize the sunny zones according to the moment of the year and the hour of the day. By zooming in on the map, it is possible to see the route of the sunshine as the day progresses, with the added bonus of a simulation of the shadows cast by the buildings around you.

Around the Digital editorial office, a bar is rather well placed to enjoy the sun

around the writing of Digitala bar is rather well placed to enjoy the sun

With the slider at the top, it is possible to watch the sunshine conditions throughout the day. No more excuses for not finding the best placed terrace. Some bars are also referenced directly on the menu, making it easy to choose the place for an end-of-day drink, which must of course be consumed in moderation.

A stack of open source tools

Developed by Jean-Charles Levenne, a graduate engineer from the CentraleSupélec school, Jveuxdusoleil relies on a whole host of open source tools. The site notably uses OpenStreetMap, a cartography tool competing with Google Maps and entirely collaborative. The materialization of cast shadows is made possible through a related project, osmbuildings.org.

This tool precisely models buildings in 3D on a map, in order to have a precise vision of the urban geography of a city. And in terms of lines of code, we find Leaflet as the conductor, an open source JavaScript library that allows you to create interactive maps adapted for mobile. The tool was designed by Volodymyr Agafonkin, a Ukrainian developer whose site now redirects to pages containing calls for donations to fight the war.



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