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Figure 3.
Using the edge fabric tool. The mobile device is held parallel to the plane being photographed. The app calculates the edge fabric ellipse and reports its azimuth (long axis of the ellipse, relative to “up” on the screen), its trend and plunge in space, and its axial ratio E. Calculations take 5 seconds or less. The analysis can be captured as a screenshot, and the trend and plunge can be copied for pasting into Stereonet Mobile (Allmendinger, 2019). StraboTools locks to landscape display.
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