To obtain the deformed shape of a building in Figure 1, lateral displacements in the y direction
along the z coordinate are measured by a 2D scanner fixed on the ground. Displacements of a point in
a structure are computed by comparing the positions of the specific point from the scanner. For the
generation of reference points, the structure is scanned once with the fixed scanner. Then, the structure
is subsequently scanned for a comparison with the reference points.