SamsaRaLight: Simulate Tree Light Transmission Using Ray-Tracing
Provides tools to simulate light transmission in forest stands using three-dimensional ray-tracing. The package allows users to build virtual stands from tree inventories and to estimate (1) light intercepted by individual trees, (2) light reaching the forest floor, and (3) light at virtual sensors. The package is designed for ecological and forestry applications, including the analysis of light competition, tree growth, and forest regeneration. The implementation builds on the individual-based ray-tracing model SamsaraLight developed by Courbaud et al. (2003) <doi:10.1016/S0168-1923(02)00254-X>.
| Version: | 1.0.0 |
| Depends: | R (≥ 4.0) |
| Imports: | concaveman, data.table, dplyr, ggforce, ggnewscale, ggplot2, grid, httr, patchwork, Rcpp, RhpcBLASctl, scales, sf, sfheaders, tidyr |
| LinkingTo: | Rcpp |
| Suggests: | cowplot, knitr, purrr, rmarkdown, testthat (≥ 3.0.0) |
| Published: | 2026-04-16 |
| DOI: | 10.32614/CRAN.package.SamsaRaLight (may not be active yet) |
| Author: | Natheo Beauchamp 
[aut, cre] (R package developer),
Gauthier Ligot
[aut] (Java Capsis developer and algorithm improvement),
Francois de Coligny
[aut] (Java
Capsis developer),
Maxime Jaunatre
[aut] (R package support developer),
Benoit Courbaud
[aut, cph] (Algorithm and theory creator) |
| Maintainer: | Natheo Beauchamp <beauchamp.natheo at gmail.com> |
| BugReports: | https://github.com/natheob/SamsaRaLight/issues/ |
| License: | GPL (≥ 3) |
| URL: | https://natheob.github.io/SamsaRaLight/ |
| NeedsCompilation: | yes |
| Materials: | README |
| CRAN checks: | SamsaRaLight results |
Documentation:
| Reference manual: | SamsaRaLight.html , SamsaRaLight.pdf |
| Vignettes: |
A typical example workflow (source, R code) Model definition (source, R code) |
Downloads:
| Package source: | SamsaRaLight_1.0.0.tar.gz |
| Windows binaries: | r-devel: not available, r-release: not available, r-oldrel: not available |
| macOS binaries: | r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available |
Linking:
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