Add polygons to a track

spiral_polygon(x, y, id = NULL, gp = gpar(), track_index = current_track_index())

Arguments

x

X-locations of the data points.

y

Y-locations of the data points.

id

A numeric vector used to separate locations in x and y into multiple polygons.

gp

Graphical parameters.

track_index

Index of the track.

Value

No value is returned.

Details

Note the polygon must be closed, which means, the last data point should overlap to the first one.

Examples

# There is no example
NULL
#> NULL