PRAGUE INSTITUTE FOR PLANNING AND DEVELOPMENT
Prague has been collecting 3D data on all buildings for 12 years. Allodium developed a heuristic analytical software that corrected mistakes in 330 000 buildings and made data available for use by architects, developers and others.
The solution was based on Unity3D and a large analytical geometry library written by Allodium. The final data were processed and corrected on Amazon EC2 cloud instances because of the sheer size of the dataset.