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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: J Struct Biol. 2009 Nov 17;169(3):312–322. doi: 10.1016/j.jsb.2009.11.003

Figure 2.

Figure 2

Angular Reconstitution: the common lines between P1, P2, P3 uniquely determine the angle α12 between P1 and P2 as well as the three intersection points Q12, Q13 and Q23 (“triangle”) of their corresponding great circles on the unit sphere (up to some three-dimensional rotation and possibly a reflection).