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araponga: Estimate 3D Orientations from 2D Landmarks

Estimates possible 3D orientations of directed objects from the 2D image coordinates of two landmarks and any additional information about the imaging geometry or object. Because a 2D image generally does not uniquely determine a 3D orientation, the package returns sets of compatible pitch, yaw, and view-elevation angles rather than a single unconstrained estimate.

Version: 2.0.0
Depends: R (≥ 4.1.0)
Imports: graphics
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2026-10-27
DOI: 10.32614/CRAN.package.araponga
Author: João C T Menezes ORCID iD [aut, cre, cph]
Maintainer: João C T Menezes <jocateme at gmail.com>
BugReports: https://github.com/jocateme/araponga/issues
License: GPL (≥ 3)
URL: https://github.com/jocateme/araponga
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: araponga results

Documentation:

Reference manual: araponga.html , araponga.pdf
Vignettes: araponga (source, R code)

Downloads:

Package source: araponga_2.0.0.tar.gz
Windows binaries: r-devel: araponga_1.1.0.zip, r-release: araponga_2.0.0.zip, r-oldrel: araponga_1.1.0.zip
macOS binaries: r-release (arm64): araponga_2.0.0.tgz, r-oldrel (arm64): araponga_2.0.0.tgz, r-release (x86_64): araponga_2.0.0.tgz, r-oldrel (x86_64): araponga_2.0.0.tgz
Old sources: araponga archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.