Visualization of three-dimensional GIS objects using rapid prototyping technology

To build multicolored physical models of three-dimensional cartographic objects, such as city models, landscape with relief or conceptual surfaces, computer-controlled devices can be used which were developed for the fast and inexpensive production of mechanical parts. The main groups of rapid prototyping technology – aggregation, removal and, transformation – are presented, including the machinery to build physical models, and a new relative, laser subsurface engraving. Examples of city and surface models built by a 3D multicolor printer demonstrate the capabilities of the technology.