Create a simple features data frame for world timezones.
The full resolution file will be named "OSMTimezones.rda". In addition, "_05", _02" and "_01" versions of the file will be created that that are simplified to 5%, 2% and 1%. Simplified versions will greatly improve the speed of both searching and plotting.
convertOSMTimezones()Name of the datasetName being created.
A world timezone shapefile is downloaded and converted to a
simple features data frame with additional columns of data. The resulting file
will be created in the spatial data directory which is set with
setSpatialDataDir().
There are 2 timezones which have polygons but the associated rows in the dataframe have no data.
These timezones also have no countryCode assigned. We hope to rectify this in a future release.
These are the missing timezones:
> OSMTimezones$timezone[is.na(OSMTimezones$countryCode)]
[1] "America/Nuuk" "Asia/Qostanay"