project_waypoints_coloured: Project the waypoints
In dynverse/dynplot: Visualising Single-Cell Trajectories

Project the waypoints

project_waypoints_coloured(
  trajectory,
  cell_positions,
  edge_positions = NULL,
  waypoints = dynwrap::select_waypoints(trajectory),
  trajectory_projection_sd = sum(trajectory$milestone_network$length) * 0.05,
  color_trajectory = "none"
)

`trajectory`	A dynwrap trajectory.
`cell_positions`	The positions of the cells in 2D. Must be a tibble with character column `cell_id` and numeric columns `comp_1` and `comp_2`.
`edge_positions`	The positions of the edges.
`waypoints`	The waypoints to use for projecting. Can by generated using `dynwrap::select_waypoints()`.
`trajectory_projection_sd`	The standard deviation of the gaussian kernel.
`color_trajectory`	How to color the trajectory, can be "nearest" for coloring to nearest cell, or "none".

A named list containing items:

segments: A tibble containing columns comp_1 (numeric), comp_2 (numeric), waypoint_id (character), milestone_id (character), from (character), to (character) percentage (numeric), group (factor), and arrow (logical).