1. A geospatial modeling system comprising: a geospatial model database; and a processor cooperating with said geospatial model database and configured for inpainting data into at least one void in geospatial model frequency domain data to replace missing data points within the at least one void based upon propagating contour data from outside the at least one void into the at least one void, and converting the geospatial model frequency domain data after inpainting into three-dimensional (3D) geospatial model spatial domain data.