fm_sizes: fm_sizes

In fmesher: Triangle Meshes and Related Geometry Tools

fm_sizes

Description

Compute effective sizes of faces/cells and vertices in a mesh

Usage

fm_sizes(...)

## S3 method for class 'fm_mesh_2d'
fm_sizes(mesh, ..., method = "R")

## S3 method for class 'fm_mesh_3d'
fm_sizes(mesh, ...)

Arguments

...	Passed on to submethods
mesh	object of a supported mesh class
method	character; "R" or "Rcpp". For "S2" manifolds, the "Rcpp" method is always used. The "R" method is currently faster, due to the cost of building internal data structures in the C++ code.

Value

A list with elements of simplex size information. For 2D meshes:

face

Vector with the area of each triangle

vertex

Vector with the triangle area apportioned to each vertex

face_edge

A matrix with one row per triangle and 3 columns, with edge lengths for the edge opposing each triangle vertex.

For 3D meshes:

cell

Vector with the volume of each tetrahedron

vertex

Vector with the tetrahedron volume apportioned to each vertex

cell_face

A matrix with one row per cell and 4 columns, with triangle areas for the triangle opposing each tetrahedron vertex.

cell_edge

A matrix with one row per cell and 4 columns, with edge lengths for the edge anchored at each vertex, pointing to the next vertex in the internal ordering.

Examples

str(fm_sizes(fmexample$mesh))

fmesher documentation built on Feb. 19, 2026, 9:07 a.m.