The goal of area is to calculate areas, allow control over how that happens, and illustrate how it works.
Very much work in progress.
Please, do not use this for your land surveying contract.
InstallationYou can install the development version from GitHub with:
The area package is written to allow easy to use calculations for developing packages. Itâs similar to the traipse package which was created to leverage the grouping mechanisms of the tidyverse for common tracking data calculations.
library(area)
polygon_area(cbind(c(0, 1, 1, 0, 0),
c(0, 0, 1, 1, 0)))
#> [1] 1
triangle_area(cbind(c(0, 1, 1, 1, 0, 0),
c(0, 0, 1, 1, 1, 0)))
#> [1] 0.5 0.5Thereâs an inbuilt data set with a path of Tasmaniaâs outline.
Straightforward?Well - ha ha - we will need some ease of use here, and some speed ups - but we arenât restricted to one in-memory format, we have the area of every component part to use as we wish (the grouping tells us about holes and multipolygons), we can tell the orientation of the polygon or triangle and get its area, and when we have the right tools weâll only be using R and C++. Oh and we can calculate with triangles stored compactly.
The key motivation here is flexibility and working with triangles.
Performance is compelling, compare silicate::tri_area() to this C++ version
Code of ConductPlease note that the area project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.
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