nvctr: The n-vector Approach to Geographical Position Calculations using an Ellipsoidal Model of Earth

The n-vector framework uses the normal vector to the Earth ellipsoid (called n-vector) as a non-singular position representation that turns out to be very convenient for practical position calculations. The n-vector is simple to use and gives exact answers for all global positions, and all distances, for both ellipsoidal and spherical Earth models. This package is a translation of the 'Matlab' library from FFI, the Norwegian Defence Research Establishment, as described in Gade (2010) <doi:10.1017/S0373463309990415>.

Version: 0.1.4
Imports: magrittr, pracma
Suggests: bookdown, covr, geosphere, knitr, png, rmarkdown, spelling, testthat
Published: 2020-10-28
Author: Enrico Spinielli ORCID iD [aut, cre], EUROCONTROL [cph, fnd]
Maintainer: Enrico Spinielli <enrico.spinielli at eurocontrol.int>
BugReports: https://github.com/euctrl-pru/nvctr/issues
License: MIT + file LICENSE
URL: https://github.com/euctrl-pru/nvctr
NeedsCompilation: no
Language: en-US
Materials: README NEWS
CRAN checks: nvctr results


Reference manual: nvctr.pdf
Vignettes: Simple and Exact Solutions to Position Calculation
Package source: nvctr_0.1.4.tar.gz
Windows binaries: r-devel: nvctr_0.1.4.zip, r-release: nvctr_0.1.4.zip, r-oldrel: nvctr_0.1.4.zip
macOS binaries: r-release: nvctr_0.1.4.tgz, r-oldrel: nvctr_0.1.4.tgz
Old sources: nvctr archive


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