The Construction of the Dupin Cyclides in a Smectic A Polygonal Texture
Figure 3
Two different main curvature radii for two surfaces: a torus and a Dupin cyclide, both characterized by the same value of ( for the drawing). For the figure, and . The two circles correspond to the curvature lines (in green) of radii and , respectively, at any point of each surface; (a) and and (b) and .