Convert origin-destination coordinates into desire lines

Convert origin-destination coordinates into desire lines

Usage

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

Other od: od2line(), od2odf(), od_aggregate_from(), od_aggregate_to(), od_coords(), od_id_order(), od_id, od_oneway(), od_to_odmatrix(), odmatrix_to_od(), points2flow(), points2odf()

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