Converts the quads in a mesh version of an object to triangles by splitting them up. Optionally drops any point or segment components.

as.tmesh3d(x, ...)
# S3 method for default
as.tmesh3d(x, drop = FALSE, ...)
# S3 method for mesh3d
as.tmesh3d(x, drop = FALSE, keepTags = FALSE, ...)



An object from which to create a triangular mesh object.


If TRUE, drop any point or segment components.


Whether to include the "tags" component in the output.


Ignored in the mesh3d method, passed to as.mesh3d in the default method.


The default method simply calls as.mesh3d(x, ...) and passes the result to the "mesh3d" method.


Older versions of rgl had a "tmesh3d" class for meshes of triangles. That class is no longer used: as.tmesh3d and tmesh3d both produce "mesh3d" objects.


A "mesh3d" object containing no quads. If drop = TRUE, it will only contain triangles.

If keepTags = TRUE, a "tags" element will be added to the result. For details, see the clipMesh3d

help page.


Duncan Murdoch

See also

as.triangles3d to get just the coordinates.


x <- cuboctahedron3d()
x             # has quads and triangles
#>  mesh3d object with 12 vertices, 8 triangles, 6 quads.
as.tmesh3d(x) # has only triangles
#>  mesh3d object with 12 vertices, 20 triangles.