Le carroyage avec QGIS et le plugin QMarxan, c'est facile! Article en français "Gridding for the dummies" ;) with Quantum GIS and QMarxan: In this article, I explain the purpose of gridding, why it is such an efficient way to analyse data within a large community of actors. Actually, gridding can be considered as a transcription of the raster format to the vector one where one tile <=> one cell. Thanks to QMarxan, gridding with QGIS is really simple: you don't need any knowledge in PostGIS, GRASS and R to do it. The NYT's Visual Election Outcome Explorer The interactive tree allows readers to explore US Presidential election scenarios centered on battleground states How we made the interactive D3 decision tree The Project: 512 Paths to the White House The space of electoral college calculators is fairly well-trodden, so at first it seemed hard to do something new. The big problem here is the combinatorial explosion (2^n): even if you consider only nine states, you have 512 possible outcomes!
Hack Your Maps Web maps have come a long way. Improved data, cleaner design, better performance, and more intuitive controls have made web maps a ubiquitous and critical component of many apps. They’ve also become one of the mobile space’s most successful transplants as more and more apps are powered by location-aware devices. Free Data Visualization: 25 Best Tools Date visualization can be a pain if one is not aware of the many tools one can use in its endeavor. Data visualization is a process wherein data is shown in a simpler way in order for people to understand easily. Samples of data visualization tools include maps, graphs, pictures, and many more. There are many tools like this in the Internet, but none can be as effective as the 25 free visualization tools featured in this list.