摘要:
An automatic three-dimensional structure shape generation apparatus for automatically generating the shape of a three-dimensional structure from a plurality of points having three-dimensional coordinates containing height information includes means for constituting a point group by collecting points such that three-dimensional distances between the points are within a predetermined threshold or two-dimensional distances and height differences between the points are within predetermined thresholds, means for detecting a polygon that includes the points of the point group at a minimum area from at least one of a plurality of predetermined polygons, and means for generating an outer shape or a rooftop shape of the three-dimensional structure from the polygon having the minimum area.