unit.icosphere: Compute the vertices and faces of a unit icosphere...
In fsbrain: Managing and Visualizing Brain Surface Data
unit.icosphere R Documentation
Compute the vertices and faces of a unit icosphere (subdivision surface of the icosahedron).
Description
The returned sphere has radius 1 and is centered at the origin. The number of vertices is 10 * 4^subdivisions + 2 and the number of faces is 20 * 4^subdivisions (42 and 80 for 1 subdivision, 162 and 320 for 2).
Usage
unit.icosphere(subdivisions = 2L)
Arguments
subdivisions
non-negative integer, the number of subdivision steps. 0 gives the plain icosahedron. Defaults to 2L, which is smooth enough for plot-sized spheres.
Value
named list with entries 'vertices' (n x 3 numeric matrix) and 'faces' (m x 3 integer matrix), i.e., an freesurferformats::fs.surface instance.
fsbrain documentation built on Sept. 27, 2026, 1:07 a.m.
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| unit.icosphere | R Documentation |
Compute the vertices and faces of a unit icosphere (subdivision surface of the icosahedron).
Description
The returned sphere has radius 1 and is centered at the origin. The number of vertices is 10 * 4^subdivisions + 2 and the number of faces is 20 * 4^subdivisions (42 and 80 for 1 subdivision, 162 and 320 for 2).
Usage
unit.icosphere(subdivisions = 2L)
Arguments
subdivisions |
non-negative integer, the number of subdivision steps. 0 gives the plain icosahedron. Defaults to 2L, which is smooth enough for plot-sized spheres. |
Value
named list with entries 'vertices' (n x 3 numeric matrix) and 'faces' (m x 3 integer matrix), i.e., an freesurferformats::fs.surface instance.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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