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Figure 4
3D renders of the reconstructed snail-shell sample using ODF-TT. (a) shows the full reconstructed volume rendered as flat cylinders with the face aligned with the c axis of the main orientation and where the size of the cylinders is proportional to the reconstructed density. The cylinders are colored according to the direction of the c axis. (b) Radiograph of a Roman snail shell showing the approximate location from where the sample was extracted. (c, d, e) Single slice of the reconstructed volume at the location marked with a black rectangle in (a) colored according to the direction of the a, b and c axis, respectively. For two select voxels on each side of the columellar wall, labeled 1 and 2, the direction of each of the three primary axes is plotted, showing an abrupt change of about 31° in the direction of the a and b axes.

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