Batch route operation for Valhalla API (this is https://github.com/rcarto/batchosrm adapted to Valhalla).
If you arrived here by mistake, perhaps you are looking for the valh package, which provides an interface to the Valhalla Web API (since batchvalh is only about being able to send route calculations in parallel, avoiding the overhead of repeated calls to valh::vl_route).
You can install the development version of batchvalh with:
remotes::install_github("mthh/batchvalh")library(batchvalh)
library(tictoc)
library(mapsf)
# Build a large dataset of origins and destination from valh package sample dataset
apt <- read.csv(system.file("csv/apotheke.csv", package = "valh"))
set.seed(42)
o <- sample(1:100, 1000, replace = T)
set.seed(666)
d <- sample(1:100, 1000, replace = T)
x <- cbind(apt[o, c(2:3)], apt[d, c(2:3)])
row.names(x) <- 1:nrow(x)
# Query duration, distance and geometry
tic()
res <- routes(x, overview = "full", nc = 8, nq = 100, server = "http://0.0.0.0:8002/", profile = "auto")
toc()
#> 11.193 sec elapsed
mf_map(res, col = "#94000010", lwd = 1)
# Only query duration and distance
tic()
dd <- routes(x, overview = FALSE, nc = 8, nq = 100, server = "http://0.0.0.0:8002/", profile = "auto")
toc()
#> 10.986 sec elapsed
head(dd)
#> duration distance
#> [1,] 17 11
#> [2,] 30 22
#> [3,] 17 12
#> [4,] 16 11
#> [5,] 12 9
#> [6,] 27 27