Analysis of Elliptical Tubes Under the Relative Curvature Condition
Overview
Analysis of elliptical tubes with applications in biological modeling. The package is based on the references: Taheri, M., Pizer, S. M., & Schulz, J. (2024) "The Mean Shape under the Relative Curvature Condition." Journal of Computational and Graphical Statistics doi:10.1080/10618600.2025.2535600 and arXiv doi:10.48550/arXiv.2404.01043. Mohsen Taheri Shalmani (2024) "Shape Statistics via Skeletal Structures", PhD Thesis, University of Stavanger, Norway doi:10.13140/RG.2.2.34500.23685. Key features include constructing discrete elliptical tubes, calculating transformations, validating structures under the Relative Curvature Condition (RCC), computing means, and generating simulations. Supports intrinsic and non-intrinsic mean calculations and transformations, size estimation, plotting, and random sample generation based on a reference tube. The intrinsic approach relies on the interior path of the original non-convex space, incorporating the RCC, while the non-intrinsic approach uses a basic robotic arm transformation that disregards the RCC.
- Updates
- The package description has been updated to include the published version of the paper *"The Mean Shape under the Relative Curvature Condition"* in the Journal of Computational and Graphical Statistics (DOI: <doi:10.1080/10618600.2025.2535600>).
- The plotting issue raised by macOS users due to the lack of native OpenGL support has been fixed by introducing the helper functions
etrep_open3d()andetrep_show3d(). These functions allow plotting to fall back to a WebGL viewer and open the scene in a browser when a native rgl device is not available.
From NEWS in the release
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Health
- OK13 OK2026-08-05
- NOTE12 OK, 1 NOTE2026-08-01
- OK13 OK2026-06-09
- ERROR12 OK, 1 ERROR2026-06-08
- OK14 OK2026-03-10
Documentation
- Help pages
- 19 (3 internal)
- Examples that run
- 67%8 run in a plain check · 3 only when donttest examples are enabled (R CMD check --as-cran) · 1 never run
- Exported functions with examples
- 100%
- Documented parameters
- 100%
- Return-value docs
- 100%
- Help pages citing references
- 42%
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Checks run against github.com/mohsentaherishalmani/elliptical_tubes on 2026-10-11.
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Dependencies
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Maintainer since 0.1.0 (2024)
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- RR 4.6.0 released · 2026-04-24
- 1.2.1Latest
- 1.2.02025-06-05 · diff ↗ ·
removed 1 export
pattern:^[[:alpha:]]+added 12 exports
check_Tube_Legality, create_Elliptical_Tube, elliptical_Tube_Euclideanization, intrinsic_Distance_Between2tubes, intrinsic_Transformation_Elliptical_Tubes, intrinsic_mean_tube, nonIntrinsic_Distance_Between2tubes, nonIntrinsic_Transformation_Elliptical_Tubes, nonIntrinsic_mean_tube, plot_Elliptical_Tube, simulate_etube, tube_Surface_Mesh - RR 4.5.0 released · 2025-04-11
- 1.1.02024-12-05 · diff ↗
- 0.1.02024-11-04
- RR 4.4.0 released · 2024-04-24
Package metadata
- First published
- 2024-11-04
- Total releases
- 4 / 2 yrs
- License
- MIT + file LICENSE OSI
- Minimum R
- ≥ 4.0.0
- Bundled data
- 1.1 MB / 4 files
- Download size
- 1.1 MB
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