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https://github.com/euctrl-pru/nvctr
R :package: about n-vector for geographical position calculations using an ellipsoidal model of Earth :globe_with_meridians:
https://github.com/euctrl-pru/nvctr
geographical-positions n-vector r r-package rstats
Last synced: about 2 months ago
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R :package: about n-vector for geographical position calculations using an ellipsoidal model of Earth :globe_with_meridians:
- Host: GitHub
- URL: https://github.com/euctrl-pru/nvctr
- Owner: euctrl-pru
- License: other
- Created: 2019-02-01T13:33:11.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-04-12T09:39:37.000Z (5 months ago)
- Last Synced: 2024-06-11T17:39:17.620Z (3 months ago)
- Topics: geographical-positions, n-vector, r, r-package, rstats
- Language: R
- Homepage: https://nvctr.ansperformance.eu/
- Size: 1.78 MB
- Stars: 10
- Watchers: 2
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: README.Rmd
- License: LICENSE
Awesome Lists containing this project
README
---
output: github_document
#csl: https://raw.githubusercontent.com/citation-style-language/styles/master/ieee-aerospace-and-electronic-systems-magazine.csl
link-citations: true
references:
- id: gade_2010
title: A Non-Singular Horizontal Position Representation
author:
- family: Gade
given: Kenneth
volume: 63
issn: 0373-4633, 1469-7785
URL: 'www.journals.cambridge.org/abstract_S0373463309990415'
DOI: 10.1017/S0373463309990415
issue: 03
container-title: Journal of Navigation
issued:
year: 2010
month: 07
pages: 395-417
- id: navigationgroupatffi_2010
title: The N-Vector Page
URL: 'https://www.navlab.net/nvector/'
issued:
year: 2010
# month: 07
author:
- family: Navigation Group
given: 'FFI'
---
```{r setup, include = FALSE}
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>",
fig.path = "man/figures/README-",
out.width = "100%"
)
```
# nvctr 
[](https://github.com/euctrl-pru/nvctr/actions)
[](https://cran.r-project.org/package=nvctr)
## Overview
The `nvctr` package implements the n-vector approach to geographical position calculations using an
ellipsoidal model of Earth as described in [@gade_2010].
Implementations in various computer languages can be found at the
[n-vector page](https://www.navlab.net/nvector/) [@navigationgroupatffi_2010].
## Installation
You can install the development version of `nvctr` from
[GitHub](https://github.com/euctrl-pru/nvctr) with:
```r
devtools::install_github("euctrl-pru/nvctr")
```
or the CRAN version (when this package will land to CRAN):
```r
install.packages("nvctr")
```
## Usage
`nvctr` can be used to solve geographical position calculation like (example numbers refer to the
ones in the [vignette][vignette]):
* Calculate the surface distance between two geographical positions ([Example 5][ex5]).
* Find the destination point given start point, azimuth/bearing and distance ([Example 8][ex8]).
* Find the mean position (center/midpoint) of several geographical positions ([Example 6][ex6]).
* Find the intersection between two paths ([Example 9][ex9]).
* Find the cross track distance between a path and a position ([Example 10][ex10]).
[vignette]: "nvctr vignette"
[ex5]: "Example 5: Surface distance"
[ex6]: "Example 6: Interpolated position"
[ex8]: "Example 8: A and azimuth/distance to B"
[ex9]: "Example 9: Intersection of two paths"
[ex10]: "Example 10: Cross track distance (cross track error)"
## References