https://github.com/stla/meshesoperations

Operations on 3D meshes with R
https://github.com/stla/meshesoperations

cgal computational-geometry r rcpp

Last synced: about 1 year ago
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Operations on 3D meshes with R

• Host: GitHub
• URL: https://github.com/stla/meshesoperations
• Owner: stla
• License: gpl-3.0
• Created: 2022-05-21T09:00:14.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2022-10-19T09:36:08.000Z (over 3 years ago)
• Last Synced: 2025-02-06T16:05:48.922Z (over 1 year ago)
• Topics: cgal, computational-geometry, r, rcpp
• Language: R
• Homepage:
• Size: 16.8 MB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# MeshesOperations: operations on 3D meshes with R

[![R-CMD-check](https://github.com/stla/MeshesOperations/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/stla/MeshesOperations/actions/workflows/R-CMD-check.yaml)

[![R-CMD-check-valgrind](https://github.com/stla/MeshesOperations/actions/workflows/R-CMD-check-valgrind.yaml/badge.svg)](https://github.com/stla/MeshesOperations/actions/workflows/R-CMD-check-valgrind.yaml)

Using the C++ library **CGAL** to perform operations on 3D Meshes.

## Boolean operations on meshes

#### Intersection

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/Intersection.png)

#### Difference

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/Difference.png)

#### Union

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/Union.png)

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/tetrahedraCompound.gif)

## Shape smoothing

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/HopfTorusSmoothed.gif)

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/StanfordBunnySmoothed.gif)

## Minkowski sum

- Octahedron + sphere:

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/OctahedronPlusSphere.gif)

- Tetrahedron + truncated icosahedron:

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/TetrahedronPlusTruncatedIcosahedron.gif)

## Decomposition in convex parts

![](https://raw.githubusercontent.com/stla/MeshesOperations/master/inst/screenshots/pentagrammicPrism.png)

## License

This package is provided under the GPL-3 license. If you wish to use CGAL for 

commercial purposes, you must obtain a license from the 

[GeometryFactory](https://geometryfactory.com).

## Blog posts

I wrote a 

[blog post](https://laustep.github.io/stlahblog/posts/BooleanOpsOnMeshes.html)

devoted to Boolean operations on meshes (using **RCGAL**, the 

[ancestor](https://laustep.github.io/stlahblog/posts/splittingRCGAL.html) 

of **MehesOperations**), and 

[another one](https://laustep.github.io/stlahblog/posts/MinkowskiSumLeonardo.html) 

showing an example of the Minkowski addition.