Image
Figure Caption

Figure 2—figure supplement 1. The z-axis is perpendicular to the paper. (B) Position of cell i can be expressed with a radial distance ri from the center of core curve of torus or that of tubes, and two angles pi and qi.

Acknowledgments
This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image. Full text @ Elife