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Figure 1 Overview of the workflow of the method. (a) Two mesh scans are performed over the sample area at different orientations of the rotation axis (with angular difference α). Analysis by Dozor and Dozor-m2 showed two crystals (pictured in different colours) in each of the mesh-scan areas. The yellow question mark indicates ambiguity in the selection of crystal-centring coordinates. (b) Illustration of the algorithms used by Resheteau. Raw images are analysed by Dozor; the spot coordinates are then used by Resheteau to reconstruct lattice subsets in reciprocal space. The function find_planes() takes as its argument the 3D coordinates of lattice points and returns plane-vector coordinates (e.g. V1, V2 in the first case, U1 in the second case) based on these points. The vectors are then rotated accordingly by the angular difference α and applied to the opposing crystal point coordinates using the function check(), which returns a score (see Appendix A ![]() |