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Vizzuality/cartodb - GitHub
Featured use case // Volcano A great and unusual use case of CartoDB. Jositajosi, a handcrafts company established in Iceland, made a beautiful Christmas present for their customers: a notebook with a cover illustrating the Eyjafjallajökull glacier isolines. Jositajosi uploaded the isoline vectors to CartoDB to fine-tune the visualization. In the end, they produced a gorgeous map of Iceland´s elevation. Check it out! Featured use case // Wall Street Journal The WSJ uses CartoDB to visualize the state of the 2012 US Elections in its "State of the Race" map. CartoDB

CartoDB

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PostGIS in Action PostGIS in Action PostGIS is an open source spatial database extender for PostgreSQL. It equals or surpasses proprietary alternatives, allowing you to create location-aware queries with just a few lines of SQL code, and provides a back-end for mapping applications with minimal effort. PostGIS in Action teaches readers of all levels to write spatial queries that solve real-world problems. It first gives you a background in vector-based GIS and then quickly moves into analyzing, viewing, and mapping data. You'll learn how to optimize queries for maximum speed, simplify geometries for greater efficiency, and create custom functions for your own applications.