Figure 11
The illustration presents a 3-D model of an irregular rock or ground surface viewed from above and slightly oblique. The surface is divided diagonally from lower left to upper right. The lower‑left half is light gray and labeled “Computed Deformation”, while the upper‑right half is overlaid with a translucent olive layer labeled “Spatial Error”. Across the entire surface, numerous circular markers indicate measurement points: large and small red disks dominate, with smaller blue disks and squares scattered mainly on the gray half. The densities and sizes of these markers vary from place to place, emphasizing areas of larger or smaller values. Near the top center, a scale bar labeled “1 meter” provides a reference length.The left half shows the computed deformation, while the right part shows the spatial error