Fig. 6: Geometric description of Point-Point Equation.
From: Simplified equations for object trajectories in rotating space habitats and space juggling

This image shows the geometry of the mathematics described in Derivation of Point-Point Equation. The black point shows the location of the central axis described in Eq. (16). The red and blue points show the locations of the points described in Eqs (17) and (18). This graphic is represented in the inertial reference frame.