Witkowski, Olaf Ikegami, Takashi Illustration of Euler angles. <p><i>ψ</i> corresponds to the agent’s pitch (i.e. elevation) and <i>θ</i> is the agent’s yaw (i.e. heading). The agent’s roll <i>ϕ</i> is not used in this paper.</p> insect swarms;bird flocks;agent;Swarming Behavior;cell colonies;effect communication;reductionist approach;ability;Foraging Agents Evolve Collective Motion;obstacle avoidance;search patterns;resource;leader-follower relations;model;Signaling Swarming behavior;3 D environment 2016-04-27
    https://plos.figshare.com/articles/figure/Illustration_of_Euler_angles_/3208720
10.1371/journal.pone.0152756.g001