| Type: | Package |
| Title: | Night and Day Boundary Plot Function |
| Version: | 1.0.1.1 |
| Date: | 2011-04-27 |
| Author: | Max Hughes-Brandl |
| Maintainer: | Max Hughes-Brandl <gordonmax@hotmail.de> |
| Description: | Computes and plots the boundary between night and day. |
| License: | GPL-2 | GPL-3 [expanded from: GPL] |
| LazyLoad: | yes |
| Depends: | R(≥ 2.9.9), maps |
| Packaged: | 2018-04-16 13:12:15 UTC; hornik |
| Repository: | CRAN |
| Date/Publication: | 2018-04-16 15:01:30 UTC |
| NeedsCompilation: | no |
Night and Day Boundary Plot Funtion
Description
Computes and plots the boundary between night and day.
Details
| Package: | NightDay |
| Type: | Package |
| Version: | 1.0 |
| Date: | 2011-01-27 |
| License: | GPL |
| LazyLoad: | yes |
Author(s)
Max Hughes-Brandl
Maintainer: gordonmax@hotmail.de
Examples
Time <- Sys.time()
timezone <- 1
plot(NightDay(Time, timezone), maps = 'world')
Night and Day Boundary Computation Function
Description
Calculates the declination of the sun, the greenwhich hour angle and the latitudes of the of the sun movements throughout one day.
Usage
NightDay(time, timezone)
Arguments
time |
needs to be of following format: %Y-%m-%d (%Y Year with century, %m Month as decimal number (01-12), %d Day of the month as decimal number (01-31)), %H:%M:%S (%H Hours as decimal number (00-23), %M Minute as decimal number (00-59), %S Second as decimal number (00-61) |
timezone |
has to be an integer, e.g. a number between -11 and +11 (0 for GMT, +1 for CMT, etc.) |
Value
Time |
is an object of class 'POSIXlt' representing the input time. |
tz |
is an integer representing the input timezone |
Latitude |
is a vector fo doubles containing the Latitudes of the night and day boundary. |
Declination |
returns a double of the sun declination. |
GHA |
returns a double of the greenwhich hour angle. |
Note
The function NightDay can be used in combination with your own maps and plot functions.
Author(s)
Max Hughes-Brandl
Examples
Time <- Sys.time()
timezone <- 1
NightDay(Time, timezone)
Night and Day Boundary Plot Funtion
Description
Plots the boundary between night and day.
Usage
## S3 method for class 'NightDay'
plot(x, maps = 'world', add = FALSE, ...)
Arguments
x |
an object of class |
maps |
only 'world' implemented. |
add |
logical indicating whether the plot is added to an existing device. |
... |
additional arguments, currently not implemented. |
Note
The function plot depends on library('maps').
Author(s)
Max Hughes-Brandl
Examples
Time <- Sys.time()
timezone <- 1
plot(NightDay(Time, timezone))