Fig. 1
Generating computer models for five orchid root apexes. a Overall appearance of a moth orchid (Phalaenopsis sp.) commercial hybrid; the yellow circle contains a magnification of a root apex. b Simplified representation of the setup for the production of image sets; groups of micrographs at different views are taken by systematically adjusting root position thanks to a positioning stage. The comic (top, right) details on the four degrees of freedom (R 1 , R 2 , R 3 and T 1 ) yielded by the stage. c Snapshots of three-dimensional computer models for the five roots reconstructed, viewed in mesh, solid, textured, and X-ray modes