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Partition OSRM Graph for Multi-Level Dijkstra (MLD)

Source: R/osrm_partition.R
osrm_partition.Rd

Run the osrm-partition tool to partition an OSRM graph for the MLD pipeline. After running, a companion <base>.osrm.partition file must exist to confirm success.

Usage

osrm_partition(
  input_osrm,
  threads = 8L,
  verbosity = c("INFO", "NONE", "ERROR", "WARNING", "DEBUG"),
  balance = 1.2,
  boundary = 0.25,
  optimizing_cuts = 10L,
  small_component_size = 1000L,
  max_cell_sizes = c(128, 4096, 65536, 2097152),
  echo_cmd = FALSE,
  echo = TRUE,
  spinner = TRUE
)

Arguments

input_osrm

A string. Base path to the .osrm files (without extension).

threads

An integer. Number of threads to use; default 8 (osrm-partition's default).

verbosity

A string. Log verbosity level passed to -l/--verbosity (one of "NONE","ERROR","WARNING","INFO","DEBUG"); default "INFO".

balance

A numeric. Balance for left and right side in single bisection; default 1.2.

boundary

A numeric. Percentage of embedded nodes to contract as sources and sinks; default 0.25.

optimizing_cuts

An integer. Number of cuts to use for optimizing a single bisection; default 10.

small_component_size

An integer. Size threshold for small components; default 1000.

max_cell_sizes

A numeric vector. Maximum cell sizes starting from level 1; default c(128,4096,65536,2097152).

echo_cmd

A logical. Print each command before running; default FALSE.

echo

A logical. Stream stdout/stderr; default TRUE.

spinner

A logical. Show spinner instead of live logs; default TRUE.

Value

A list with elements:

osrm_path

The normalized path to the input .osrm base (invisibly).

logs

The processx::run result object.