[general] ; Lines starting by ; are commented lines. ; ; Network capabilities disabled by default. ; Can be overridden with the PROJ_NETWORK=ON environment variable. ; Cf https://proj.org/en/latest/usage/network.html ; Valid values = on, off network = off ; Endpoint of the Content Delivery Network where remote resources might ; be accessed. Only used if network access is allowed (cf above "network" ; option) ; Can be overridden with the PROJ_NETWORK_ENDPOINT environment variable. cdn_endpoint = https://cdn.proj.org ; Whether to enable a cache of remote resources that are accessed, on the ; local file system ; Valid values = on, off cache_enabled = on ; Size of the cache in megabytes cache_size_MB = 300 ; Time-to-live delay in seconds before already accessed remote resources are ; acessed again to check if they have been updated. cache_ttl_sec = 86400 ; Can be set to on so that by default the lack of a known resource files needed ; for the best transformation PROJ would normally use causes an error, or off ; to accept missing resource files without errors or warnings. ; This default value itself is overriden by the PROJ_ONLY_BEST_DEFAULT environment ; variable if set, and then by the ONLY_BEST setting that can be ; passed to the proj_create_crs_to_crs() method, or with the --only-best ; option of the cs2cs program. ; (added in PROJ 9.2) ; Valid values = on, off only_best_default = off ; Filename of the Certificate Authority (CA) bundle. ; Can be overriden with the PROJ_CURL_CA_BUNDLE / CURL_CA_BUNDLE environment variable. ; (added in PROJ 9.0) ; ca_bundle_path = /path/to/cabundle.pem ; Transverse Mercator (and UTM) default algorithm: auto, evenden_snyder or poder_engsager ; * evenden_snyder is the fastest, but less accurate far from central meridian ; * poder_engsager is slower, but more accurate far from central meridian ; * default will auto-select between the two above depending on the coordinate ; to transform and will use evenden_snyder if the error in doing so is below ; 0.1 mm (for an ellipsoid of the size of Earth) tmerc_default_algo = poder_engsager