Fig. 8 | Scientific Reports

Fig. 8

From: Novel application of SANS provides quantitative non-destructive identification of forming techniques in late Roman and early medieval pottery from Pannonia

Fig. 8

Average orientation and relative elongation of scattering domains in 3D space for samples of Fabric A, determined from mean tilting angle and isotropy values measured in tangential, vertical, and horizontal planes. A Coil-section; B coil-built; C coil-wheeled; D wheel-thrown. Primary, secondary and tertiary axes of the ellipsoids shown as red, blue and yellow arrows respectively. The position of the major axis of the 2D ellipse in each plane corresponds to the mean tilting angle in that plane, while the aspect ratio of the ellipse (width/length) equals the mean isotropy. The intersection of the projections of the ellipses in each plane combine to form a tri-axial ellipsoid, representing the mean 3D orientation and elongation of the scattering domains. (See Supplementary Material A Figures S8-S11 for interactive 3D models). XY = horizontal plane (i.e. parallel to vessel rim-plane); XZ = vertical plane (i.e. perpendicular to walls and rim-plane); YZ = tangential plane (i.e. parallel to walls).

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