Fig 1.
The primary interface of the Artifact3-D program, showing the main functions that can be conducted on an artifact.
Fig 2.
An example of the images produced during the Process Directory and Process Object function, showing the 3D scan in different orthogonal projections (a), as well as the key linear measurements (in mm) taken on the object (b).
Fig 3.
Jitter plot comparing the CoM with the CoBB for (in order) picks from Ubeidiya and Nahal Zihor, handaxes from Nahal Zihor Group A, handaxes from Um Qatafa, handaxes from Nahal Zihor Group B, sickle blades from Kfar HaHoresh, Spheroids from Ubeidiya, Neolithic bifaces from Nahal Zihor, and Neolithic bifaces from Kfar HaHoresh.
The y-axis shows the difference in y-coordinates, and the x-axis shows the difference in x-coordinates, normalized by artifact length and width respectively. Grey vertical lines show the maximum variation in CoM and CoBB x-coordinates. The mean values and standard deviation error bars are shown in blue.
Fig 4.
The 3D model of the Levallois flake showing the location of the cut made using the Create Cut function (a). The angle and length measurements taken on this cut (b). The platform width and depth distances taken using the Manual Measurements function (c).
Fig 5.
The external platform angle calculation showing the points at which angle is calculated on the platform (blue) and dorsal (red) surface (left), and a plot of the mean angle between the surfaces for different distances from the edge (–), as well as the mean angle returned by the software (—) (right).
Fig 6.
Plan view of the example Levallois flake with the line that separates the artifact outline into halves with the least amount of asymmetry (left), and a boxplot of the asymmetry values for the less and more experienced knappers (right).
Fig 7.
Levallois flakes from the less experienced (a) and more experienced (b) experimental knappers, showing the result of the scar segmentation function, as well as a boxplot of the median maximal curvature values for both knappers (c).
Fig 8.
Boxplots for layers VIIa and XIX of Qafzeh Cave, showing the ratio in surface area between the largest dorsal scar and ventral surface (a), and the ratio in surface area between the second largest and largest scar (b).