stplanr (version 0.4.0)

line_bearing: Find the bearing of straight lines

Description

This is a simple wrapper around the geosphere function bearing() to return the bearing (in degrees relative to north) of lines.

Usage

line_bearing(l, bidirectional = FALSE)

Arguments

l

A spatial lines object

bidirectional

Should the result be returned in a bidirectional format? Default is FALSE. If TRUE, the same line in the oposite direction would have the same bearing

Details

Returns a boolean vector. TRUE means that the associated line is in fact a point (has no distance). This can be useful for removing data that will not be plotted.

See Also

Other lines: angle_diff, geo_toptail, is_linepoint, line2df, line2points, line_match, line_midpoint, line_sample, line_segment, line_via, mats2line, n_sample_length, n_vertices, onewaygeo, onewayid, points2line, toptail_buff, toptailgs, update_line_geometry

Examples

# NOT RUN {
data(flowlines)
b1 <- line_bearing(flowlines)
b2 <- line_bearing(flowlines, bidirectional = TRUE)
plot(b1, b2)
line_bearing(flowlines_sf[1:9, ])
# }