TY - JOUR AU - Feng, Dai AU - Tierney, Luke PY - 2008/09/23 Y2 - 2024/03/28 TI - Computing and Displaying Isosurfaces in R JF - Journal of Statistical Software JA - J. Stat. Soft. VL - 28 IS - 1 SE - Articles DO - 10.18637/jss.v028.i01 UR - https://www.jstatsoft.org/index.php/jss/article/view/v028i01 SP - 1 - 24 AB - This paper presents R utilities for computing and displaying isosurfaces, or three-dimensional contour surfaces, from a three-dimensional array of function values. A version of the marching cubes algorithm that takes into account face and internal ambiguities is used to compute the isosurfaces. Vectorization is used to ensure adequate performance using only R code. Examples are presented showing contours of theoretical densities, density estimates, and medical imaging data. Rendering can use the rgl package or standard or grid graphics, and a set of tools for representing and rendering surfaces using standard or grid graphics is presented. ER -