Type: Package
Title: Calculate 3D Contour Meshes Using the Marching Cubes Algorithm
Version: 0.1.4
Date: 2025-09-30
Maintainer: S. H. Wilks <sam.wilks@unimelb.edu.au>
Description: A port of the C++ routine for applying the marching cubes algorithm written by Thomas Lewiner et al. (2012) <doi:10.1080/10867651.2003.10487582> into an R package. The package supplies the contour3d() function, which takes a 3-dimensional array of voxel data and calculates the vertices, vertex normals, and faces for a 3d mesh representing the contour(s) at a given level.
URL: https://github.com/shwilks/rmarchingcubes
BugReports: https://github.com/shwilks/rmarchingcubes/issues
Language: en-US
License: MIT + file LICENSE
Imports: Rcpp (≥ 1.0.5)
LinkingTo: Rcpp, RcppArmadillo
RoxygenNote: 7.3.1
Suggests: rmarkdown, knitr, testthat (≥ 3.0.0)
Config/testthat/edition: 3
VignetteBuilder: knitr
Encoding: UTF-8
NeedsCompilation: yes
Packaged: 2025-09-30 03:25:51 UTC; melb
Author: S. H. Wilks [aut, cre], Thomas Lewiner [aut]
Repository: CRAN
Date/Publication: 2025-09-30 08:10:02 UTC

Compute Isosurface, a Three Dimension Contour

Description

Computes a 3D contours or isosurface by the marching cubes algorithm.

Usage

contour3d(griddata, level, x, y, z)

Arguments

griddata

A three dimensional array from which to calculate the contour

level

The level at which to construct the contour surface

x, y, z

locations of grid planes at which values in griddata are measured

Value

Returns a list with coordinates of each surface vertex, indices of the vertices that make up each triangle, and surface normals at each vertex