Description Usage Arguments Value Author(s) See Also Examples
Construct an object that contains a geographical location given by the
latitude, longitude, and (optionally), the longitude of the nearest timezone
border. This object is required in setMet
.
If the longitude of the nearest time zone border (tzlong
) is not set,
it is assumed that all times are in 'local apparent time' (LAT), where
maximum solar altitude is reached at noon. If it is set, it is used to
calculate the time offset between clock time and solar time.
If lat
and long
are not given, a location can be selected from
a simple map of the world. The maps
package is needed for this
utility.
You can also plot the location on a map of the world (see Examples).
1 | setLocation(lat = NA, long = 0, tzlong = NA)
|
lat |
Latitude (degrees, southern hemisphere negative) |
long |
Longitue (degrees) |
tzlong |
Optional. Longitude of the nearest timezone border (degrees). |
An object of class yplocation
.
Remko Duursma
1 2 3 4 5 6 7 8 9 10 11 | # Set a location:
sydney <- setLocation(lat=-33.5, long=152, tzlong=150)
## Not run:
# Set a location from a map:
somewhere <- setLocation()
# Plot locations
plot(sydney)
## End(Not run)
|
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