| Title: | Extra Map Databases |
| Version: | 2.3.1 |
| Date: | 2022-10-31 |
| Author: | Original S code by Richard A. Becker and Allan R. Wilks. R version by Ray Brownrigg <Ray.Brownrigg@ecs.vuw.ac.nz>. |
| Description: | Supplement to maps package, providing some larger and/or higher-resolution databases. NOTE: this is a legacy package. The world map is out-dated. |
| Depends: | R (≥ 2.14.0), maps (≥ 2.0-7) |
| LazyData: | yes |
| License: | GPL-2 |
| Maintainer: | Alex Deckmyn <alex.deckmyn@meteo.be> |
| NeedsCompilation: | yes |
| Packaged: | 2022-10-31 20:52:53 UTC; alex |
| Repository: | CRAN |
| Date/Publication: | 2022-11-01 00:57:32 UTC |
China Map
Description
This database produces a map of China, including provincial boundaries.
Format
The data file is merely an assignment to a character string which
specifies the name of an environment variable which contains the
base location of the binary files used by the map drawing functions.
This environment variable (R_MAPDATA_DATA_DIR for the datasets in the
mapdata package) is set at package load time.
References
Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories Statistics Research Report [93.2], 1993.
Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", AT&T Bell Laboratories Statistics Research Report [95.2], 1995.
See Also
Examples
map('china')
Japan Map
Description
This database produces a map of Japan, including prefecture boundaries.
Format
The data file is merely an assignment to a character string which
specifies the name of an environment variable which contains the
base location of the binary files used by the map drawing functions.
This environment variable (R_MAPDATA_DATA_DIR for the datasets in the
mapdata package) is set at package load time.
Source
Thanks to Ritei Shibata of Keio University for the formatted data.
References
Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories Statistics Research Report [93.2], 1993.
Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", AT&T Bell Laboratories Statistics Research Report [95.2], 1995.
See Also
Examples
map('japan')
New Zealand Map
Description
This database produces a high-resolution map of New Zealand. The database includes Pacific and sub-antartic island dependencies also.
Format
The data file is merely an assignment to a character string which
specifies the name of an environment variable which contains the
base location of the binary files used by the map drawing functions.
This environment variable (R_MAPDATA_DATA_DIR for the datasets in the
mapdata package) is set at package load time.
References
Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories Statistics Research Report [93.2], 1993.
Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", AT&T Bell Laboratories Statistics Research Report [95.2], 1995.
See Also
Examples
map('nzHires')
World Rivers Map Database
Description
This database produces major rivers (and some lakes) which may be used to add to an existing map. Unfortunately, there is no fine control over which rivers are plotted, so all rivers which lie within the boundaries of the current plot on display will be added. Some of these may be outside the boundaries of the map shown.
Format
The data file is merely an assignment to a character string which
specifies the name of an environment variable which contains the
base location of the binary files used by the map drawing functions.
This environment variable (R_MAPDATA_DATA_DIR for the datasets in the
mapdata package) is set at package load time.
References
Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories Statistics Research Report [93.2], 1993.
Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", AT&T Bell Laboratories Statistics Research Report [95.2], 1995.
See Also
Examples
map('usa')
map('rivers', add=TRUE)
Pacific Centric World Map
Description
This world database comes from a cleaned-up version of the CIA World Data Bank II data and contains approximately 2 million points representing the world coastlines and national boundaries. This map is based on latitudes [0, 360), which then has the Pacific Ocean in the centre of the map.
Usage
data(world2HiresMapEnv)
data(world2LoresMapEnv)
Format
The data file is merely an assignment to a character string which
specifies the name of an environment variable which contains the
base location of the binary files used by the map drawing functions.
This environment variable (R_MAPDATA_DATA_DIR for the datasets in the
mapdata package) is set at package load time.
Source
The CIA World Data Bank II is currently available from https://www.evl.uic.edu/pape/data/WDB/.
References
Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories Statistics Research Report [93.2], 1993.
Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", AT&T Bell Laboratories Statistics Research Report [95.2], 1995.
See Also
map, world, worldHires,
world2
Examples
map('world2Hires', xlim=c(100, 300))
World Map
Description
This (legacy) world database comes from a cleaned-up version of the CIA World Data Bank II data and contains approximately 2 million points representing the world coastlines and national boundaries. This makes it suitable for extracting countries, continents, etc. while still retaining lots of detail.
The ‘world2’ database is a modified version of the ‘world’ database in which the longitude ranges from 0 through 360 degrees, instead of -180 through 180. This then allows maps of the whole Pacific Ocean for example.
worldLores contains exactly the same polygon information, but the boundaries have been reduced to a very low resolution.
Format
The data file is merely an assignment to a character string which
specifies the name of an environment variable which contains the
base location of the binary files used by the map drawing functions.
This environment variable (R_MAPDATA_DATA_DIR for the datasets in the
mapdata package) is set at package load time.
Note
This database was compiled in the 1990's and does not reflect more recent political changes. It is maintained mainly for historical purposes and legacy code. The data in maps::world on in packages like rnaturalearth is much more up to date.
Source
The CIA World Data Bank II is currently (mid-2017) still available from https://www.evl.uic.edu/pape/data/WDB/.
References
Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories Statistics Research Report [93.2], 1993.
Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", AT&T Bell Laboratories Statistics Research Report [95.2], 1995.
See Also
Examples
map('worldHires', col=1:10)
map('worldHires', 'Switzerland')
title('Switzerland')