geom_velocity: Plotting velocity
In dynverse/dynplot2: Grammar of graphics for single-cell data

Plotting velocity

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geom_velocity_arrow(mapping = NULL, stat = stat_velocity_grid(),
  arrow = ggplot2::arrow(length = ggplot2::unit(0.2, "cm")), ...,
  data = construct_get_velocity_info(stat), show.legend = NA)

`mapping`	Set of aesthetic mappings created by `aes()` or `aes_()`. If specified and `inherit.aes = TRUE` (the default), it is combined with the default mapping at the top level of the plot. You must supply `mapping` if there is no plot mapping.
`stat`	Where to place the arrows, such as for every cell (`stat_velocity_cells()`) or using a grid (`stat_velocity_grid()`)
`arrow`	specification for arrow heads, as created by arrow().
`...`	Other arguments passed on to `layer()`. These are often aesthetics, used to set an aesthetic to a fixed value, like `colour = "red"` or `size = 3`. They may also be parameters to the paired geom/stat.
`data`	A function created by `construct_get_velocity_info()`
`show.legend`	logical. Should this layer be included in the legends? `NA`, the default, includes if any aesthetics are mapped. `FALSE` never includes, and `TRUE` always includes. It can also be a named logical vector to finely select the aesthetics to display.