getVectorSetFeatures {openSkies} | R Documentation |
Get positional features of an openSkiesStateVectorSet object
Description
Retrieves positional features of an openSkiesStateVectorSet
object.
Features will be uniformly interpolated from the observed values.
Usage
getVectorSetFeatures(stateVectorSet, resamplingSize=15, method="fmm", fields=NULL)
Arguments
stateVectorSet |
object of class |
resamplingSize |
number of uniformly separated interpolation points at which the values of the position features should be calculated. |
method |
method to be used for interpolation. "linear" will result in linear interpolation, while "fmm", "periodic", or "natural" will result in different types of spline interpolation. |
fields |
character vector indicating the names of the fields of the
|
Value
A vector with positional features of the provided openSkiesStateVectorSet
object.
The vector alternates values of longitude and latitude at each interpolated
point, unless a character vector with valid names of fields of openSkiesStateVector
objects is provided through fields
, in which case values of the specified
fields are alternated, in the specified order.
Examples
# Extract positional features for a time series of state vectors for the
# aircraft with ICAO 24-bit address 403003 for the 8th of October, 2020 between
# 16:50 and 16:53 (London time), with a time resolution of 1 minute.
if(interactive()){
vectors <- getAircraftStateVectorsSeries(aircraft="4ca7b3",
startTime="2020-11-04 10:30:00", endTime="2020-11-04 12:00:00",
timeZone="Europe/London", timeResolution=300)
features <- getVectorSetFeatures(vectors)
}