![]() Output is in the following formats: OBJ, CityGML, CityJSON, CSV (for buildings only, i.e. It is possible to define new classes, although that would require a bit of programming. The lifting options can be configured in the YAML file provided, an example is provided in /resources/config_files/myconfig.yml.Īny 2D input (which should be a planar partition) can be used as input, and each class must be mapped to one of the following: This video illustrates the process and what 3dfier is about. This surface will then be used as input in simulation software for instance. no intersecting triangles, no holes (the surface is watertight), where buildings are integrated in the surface, etc. Our aim is to obtain one DSM that is error-free, i.e. That is, water polygons are extruded to horizontal polygons, buildings to LOD1 blocks, roads as smooth surfaces, etc.Įvery polygon is triangulated (constrained Delaunay triangulation) and the lifted polygons are "stitched" together so that one digital surface model (DSM) is constructed. The elevation is obtained from a point cloud (we support LAS/LAZ at this moment), and the semantics of every polygon is used to perform the lifting. ![]() ![]() topographical datasets) and "3dfies" them (as in "making them three-dimensional") by lifting every polygon to 3D.
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