Given a network and set of IDs, finds paths between all identified flowpath outlets. This algorithm finds members between outlets regardless of flow direction.
get_path_members(outlets, network, cores = 1, status = FALSE)list of lists containing flowpath identifiers along path that connect outlets.
source(system.file("extdata", "walker_data.R", package = "nhdplusTools"))
fline <- walker_flowline
outlets <- c(5329303, 5329357, 5329317, 5329365, 5329435, 5329817)
# Add toCOMID
fline <- nhdplusTools::get_tocomid(fline, add = TRUE)
fl <- dplyr::select(fline, ID = comid, toID = tocomid, lengthkm)
get_path_members(outlets, fl)
#> Warning: get_paths* is deprecated in favor of get_paths in the hydroloom package.
#> id_1 id_2 path
#> 1 5329303 5329357 7, 6, 5, 4, 3, 2, 1
#> 2 5329303 5329317 3, 2, 1
#> 3 5329303 5329365 8, 7, 6, 5, 4, 3, 2, 1
#> 4 5329303 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
#> 5 5329303 5329817 18, 17, 5, 4, 3, 2, 1
#> 6 5329357 5329317 7, 6, 5, 4
#> 7 5329357 5329365 8
#> 8 5329357 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9, 8
#> 9 5329357 5329817 7, 6, 18, 17
#> 10 5329317 5329365 8, 7, 6, 5, 4
#> 11 5329317 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9, 8, 7, 6, 5, 4
#> 12 5329317 5329817 18, 17, 5, 4
#> 13 5329365 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9
#> 14 5329365 5329817 8, 7, 6, 18, 17
#> 15 5329435 5329817 15, 14, 13, 12, 11, 60, 62, 10, 9, 8, 7, 6, 18, 17