I have a 3d system I visualize in pymol. I'm using the simple xyz file format where I give pymol the name of the molecule and it's x,y,z coordinates.
name x y z
I now want to draw some rods the rods connect two points, one on the y=0 plain and the other on the y=L plain. L is the size of my system in the y direction. How can I achieve this?
Note that I control the input file I give to pymol and I can add points to the file.