#Protovis
►http://vis.stanford.edu/protovis
Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that quickly become tedious for visualization, Protovis defines marks through dynamic properties that encode data, allowing inheritance, scales and layouts to simplify construction.
Protovis is free and open-source, provided under the BSD License. It uses #JavaScript and #SVG for web-native visualizations; no plugin required (though you will need a modern web browser)! Although programming experience is helpful, Protovis is mostly declarative and designed to be learned by example.
La reproduction en s’appuyant sur Google Maps du célèbre graphique de Minard sur la campagne de Russie est carrément bluffante :
