Convert origin-destination coordinates into desire lines

od_coords2line(odc, crs = 4326, remove_duplicates = TRUE)

Arguments

odc

A data frame or matrix representing the coordinates of origin-destination data. The first two columns represent the coordinates of the origin (typically longitude and latitude) points; the third and fourth columns represent the coordinates of the destination (in the same CRS). Each row represents travel from origin to destination.

crs

A number representing the coordinate reference system of the result, 4326 by default.

remove_duplicates

Should rows with duplicated rows be removed? TRUE by default.

See also

Examples

odf <- od_coords(l = flowlines_sf) odlines <- od_coords2line(odf) odlines <- od_coords2line(odf, crs = 4326) plot(odlines)
x_coords <- 1:3 n <- 50 d <- data.frame(lapply(1:4, function(x) sample(x_coords, n, replace = TRUE))) names(d) <- c("fx", "fy", "tx", "ty") l <- od_coords2line(d)
#> Duplicate OD pairs identified, removing 14 rows
plot(l)
nrow(l)
#> [1] 36
l_with_duplicates <- od_coords2line(d, remove_duplicates = FALSE) plot(l_with_duplicates)
nrow(l_with_duplicates)
#> [1] 50