topodb_download function

Download Topographic Databases for counties

topodb_download(county = NULL, TERYT = NULL, outdir = ".", unzip = TRUE, ...)

Arguments

• county: county name in Polish. Check county_names() function.
• TERYT: county ID (4 characters)
• outdir: (optional) name of the output directory; by default, files are saved in the working directory
• unzip: TRUE (default) or FALSE, when TRUE the downloaded archive will be extracted and removed
• ...: additional argument for utils::download.file()

Returns

a database in Geography Markup Language format (.GML), the content and detail level corresponds to the topographic map in the scale of 1:10000

Examples

## Not run:

topodb_download(county = "Świętochłowice") # 2.4 MB
topodb_download(TERYT = c("2476", "2264")) # 4.8 MB
## End(Not run)

References

description of topographical and general geographical databases, and technical standards for making maps (in Polish): https://isap.sejm.gov.pl/isap.nsf/download.xsp/WDU20210001412/O/D20211412.pdf

brief description of categories and layer names (in English and Polish): https://kadyb.github.io/rgugik/articles/articles/spatialdb_description.html