Figure 1. 3D Plant Scans and Illustrative Spatial Density Functions.
(A–C) Example scans of three plants on their 20th developmental day: (A) tomato; (B) sorghum; and (C) tobacco. Grey dots correspond to the mid-points of edges at the shown (x, y, z) location and are used to compute the spatial density function for each plant. Only visible points are shown.
(D) Illustrations of Gaussian spatial density functions in different conditions and time points. Our analysis focuses on the branching architecture above the hypocotyl. The brown cloud denotes the spatial density of the branching architecture. The higher the brown intensity of a point, the higher the probability of finding a branch at that point. The length-to-width ratio of the ellipse reflects differences in density in each direction. The distribution curves on top of the ellipses show examples of the Gaussian density function along one direction.
See also Figure S4.