(integer/numeric) how many coordinates each polygon will
contain. Default: 10
max_length
(integer/numeric) maximum number of decimal degrees (1
degree = approximately 69 miles or 111 km) that a vertex can be from its
predecessor. Default: 0.0001
max_rotation
(integer/numeric) the maximum number of radians that a
line segment can turn from the previous segment. Default: pi / 8
bbox
(integer/numeric) lat/long bounding box for the starting point of
the line, numeric vector of the form west (long), south (lat), east
(long), north (lat). optional
fmt
(integer/numeric) number of digits. Default: 7
Value
WKT; a character vector with one or more LINESTRING strings