Unrolled 2D orthophotos of rounded building
Fort Asterstein formed part of the Prussian fortress system in Koblenz. Its preserved Reduit contains rounded facade geometry that cannot be documented accurately with ordinary flat elevations, so the project required a workflow that could transform curved wall surfaces into measurable drawings.
SPM3D used laser scanning and photogrammetry together to create detailed unrolled orthophotos of the fort facades. The curved surfaces were reprojected into a plane, preserving scale and visual detail so damage, stone joints and facade features could be reviewed directly on the drawings.
The final package, produced in 12 days of processing, included 9 facade orthophotos and 15 2D drawings for investigation and documentation of the Reduit structures in Koblenz, Germany.
