I bet this image (arroyo et al, which appears in the body of the paper and also in the supplement) has been studied, measured, and processed in more programs than any other dodecamer in history. Every nanometer of it has been examined and every striation artifact in the background looked at, (original arrow in figure covered too), peaks heights, widths, square nanometers, relation to other peaks in terms of height and underlying slope, numbers of peaks between the N termini and separate CRDs, declination of the peaks (2D) in each arm, diameter of the whole dodecamer, length of each hexameric arm as measured in segmented lines, images rotated and remeasured to balance scan out bias and background..in fact worked over ad nauseum.

It has been used to test arm straightening techniques, measure angles (acute and obtuse) of the four arms, to predict where the coiled coil of the neck tucks under the CRD, to find the tiny peak between the N termini junction and the first large peak on each side (allegedly a glycosylation site). Programs used are dedicated image processing programs such as gwyddion and imageJ, and non science-dedicated imaging programs, but nonetheless extremely useful CorelDRAW and photoshop.

All just to figure out clues that will help someone else see exactly what shape the collagen-like-domains can be modeled to.