R version 3.5.3 (2019-03-11) -- "Great Truth" Copyright (C) 2019 The R Foundation for Statistical Computing Platform: x86_64-pc-linux-gnu (64-bit) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > suppressPackageStartupMessages(library(sf)) > suppressPackageStartupMessages(library(units)) > > if (utils::packageVersion("units") >= "0.5-0") + units_options(auto_convert_names_to_symbols = FALSE) > > ll = st_crs(4326) > sf:::crs_parameters(ll)$ud_unit 1 [arc_degree] > > u = names(sf:::udunits_from_proj) > > unrecognized = NULL > out = sapply(u, function(x) { + p4s = paste0("+proj=laea +units=", x) + cat(x, ": ") + ret = try(sf:::crs_parameters(st_crs(p4s))$ud_unit, silent = TRUE) + if (! inherits(ret, "try-error")) + print(ret) + else + unrecognized = c(unrecognized, x) + }) km : 1 [km] m : 1 [m] dm : 1 [dm] cm : 1 [cm] mm : 1 [mm] kmi : 1 [nautical_mile] in : 1 [in] ft : 1 [ft] yd : 1 [yd] mi : 1 [mi] fath : 1 [fathom] ch : 1 [chain] link : 1 [link] us-in : 1 [us_in] us-ft : 1 [US_survey_foot] us-yd : 1 [US_survey_yard] us-ch : 1 [chain] us-mi : 1 [US_survey_mile] ind-yd : 1 [ind_yd] ind-ft : 1 [ind_ft] ind-ch : 1 [ind_ch] > > if (length(unrecognized)) + print(paste("unrecognized units:", paste(unrecognized, collapse = ", "), ": older GDAL version?")) > > proc.time() user system elapsed 0.426 0.012 0.429
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