libproj_version: PROJ configuration
In libproj: Generic Coordinate Transformation Library ('PROJ') C API

Description Usage Arguments Value Examples

View source: R/libproj-package.R

PROJ configuration

libproj_version()

libproj_has_libtiff()

libproj_has_libcurl()

libproj_default_writable_dir()

libproj_default_data_dir()

with_libproj_configuration(config, expr)

libproj_configuration()

warn_for_configuration()

libproj_configure(
  search_path = c(system.file("proj", package = "libproj"),
    getOption("libproj.search_path", libproj_default_data_dir())),
  db_path = getOption("libproj.db_path", system.file("proj/proj.db", package =
    "libproj")),
  ca_bundle_path = NA,
  network_endpoint = getOption("libproj.network_endpoint", "https://cdn.proj.org"),
  network_enabled = getOption("libproj.network_enabled", FALSE),
  log_level = getOption("libproj.log_level", 1L),
  restore_previous_on_error = TRUE
)

`config`	A named `list()` with elements used to temporarily override elements of the current `libproj_configuration()`.
`expr`	An expression to evaluate with the specified state
`search_path`	A character vector of paths where libproj will look for resource files (e.g., gridshift, database, init files). Defaults to the internal database and init files distributed with the PROJ source.
`db_path`	Independent of `search_path`, a character vector of SQLite databases that may contain updated or alternative coordinate operations from the default proj.db included in this package. You must specify at least one database as part of this configuration; do not rely on `search_path` to find this value for you.
`ca_bundle_path`	A directory that contains the certificate bundle when network is enabled. Can be `NA`.
`network_endpoint`	A mirror of the PROJ CDN of gridshift files. By default, this is set to https://cdn.proj.org.
`network_enabled`	Whether or not to download gridshift files on the fly. This defaults to `FALSE`.
`log_level`	An integer describing the log level: 0 (none), 1 (error), 2 (debug), 3 (trace), or 4 (tell)
`restore_previous_on_error`	Use `FALSE` to skip resetting the previous configuration if the configuration fails.

libproj_version(): A character vector of the proj release.
libproj_has_libtiff(): TRUE if built against libtiff, FALSE otherwise.
libproj_has_libcurl(): TRUE if built against curl, FALSE otherwise.
libproj_default_writable_dir(): A character vector of the path where libproj-specific tempfiles are written.
libproj_default_data_dir(): A character vector of the path where the default PROJ-data installation is kept.
libproj_configuration(): A list() of values that can be passed to libproj_configure().
with_libproj_configuration(): The value of expr.
libproj_configure(): NULL, invisibly.