Methods for plotting sftrack/sftraj

# S3 method for sftrack
plot(x, y, key.pos, key.width, ...)

# S3 method for sftraj
plot(x, y, key.pos, key.width, ..., mode)

Arguments

x	'sftrack' or 'sftraj' object
y	ignored
key.pos	Integer; side to plot a color key: 1 bottom, 2 left, 3 top, 4 right; set to NULL to omit key, or -1 to select automatically (defaults to 4; see `plot_sf` for more details).
key.width	Amount of space reserved for the key, including labels (see `plot_sf` for more details).)
...	Further arguments passed to 'plot.sf'. Among others, arguments for the key are set differently in 'sftrack' to allow for longer labels by default (but can be nevertheless adjusted).
mode	Character; either of `"steps+points"`, `"steps"`, or `"trajectories"`, defaults to `"steps+points"`, and switch to `"steps"` if there are more than 10,000 steps.

Details

Plotting mode refers to considering the trajectory as connected elements. For "steps+points", this means it will plot each step & point individually. The alternative, faster "steps" mode merges connected steps into multilinestrings, which are plotted as continuous lines. This approach is much faster to plot with large objects, and is thus turned automatically on when n(steps)>10,000. Finally, "trajectories" merges the full trajectory as a continuous line (i.e. ignores gaps).

Examples


## Plotting with sftrack is just like sf. `...` will accept most
## arguments as 'plot.sf':
plot(racc_track, axes = TRUE, lwd = 5, cex = 5, bgc = "gray50")

## sftraj will as well for the most part; however it is a more complex
## structure that combines points and steps (in step mode):
plot(racc_traj, lwd = 5, cex = 5, bgc = "gray50", graticule = TRUE)