Workflow for Marking and Exporting Lithic Scar Orientations Using Geomagic Wrap and Rhino v1
Zhi Ye, Sam Lin, Ben Marwick · 2025
Understanding the organization of flake scars on core is crucial for interpreting core reduction strategies. Here, we present a protocol for recording and extracting flake scar orientations from 3D scanned models of cores. Using Geomagic Wrap and Rhino 8, the method involves scar vector annotation, generation of a best-fit plane, spatial alignment and standardization of scar vectors, and the export of vector coordinate data. The resulting set of scar vector coordinates is ready for orientation analysis in R. Developed by Sam Lin et al., this protocol enables reproducible and objective analysis of scar orientations across archaeological lithic assemblages.