Compute various mesh related quantities. — inla.fmesher.smorg • INLA

since 23.08.18. Use the methods in the fmesher package instead; see details below.

Low level function for computing finite element matrices, spherical harmonics, B-splines, and point mappings with barycentric triangle coordinates.

inla.fmesher.smorg(
  loc,
  tv,
  fem = NULL,
  aniso = NULL,
  gradients = FALSE,
  sph0 = deprecated(),
  sph = deprecated(),
  bspline = NULL,
  points2mesh = NULL,
  splitlines = NULL,
  output = NULL,
  keep = FALSE
)

Arguments

loc: 3-column triangle vertex coordinate matrix.
tv: 3-column triangle vertex index matrix.
fem: Use fmesher::fm_fem() instead. Maximum finite element matrix order to be computed.
aniso: Use fmesher::fm_fem() instead. A two-element list with \(\gamma\) and \(v\) for an anisotropic operator \(\nabla\cdot H \nabla\), where \(H=\gamma I + v v^\top\)
gradients: Use fmesher::fm_fem() instead. When TRUE, calculate derivative operator matrices dx, dy, and dz.
sph0: Use fmesher::fm_raw_basis() instead.
sph: Use fmesher::fm_raw_basis() instead.
bspline: Use fmesher::fm_raw_basis() instead. Rotationally invariant B-splines on a sphere. 3-vector with number of basis functions n, basis degree degree, and a logical; TRUE uniform knot angles, FALSE for uniform spacing in \(\sin(latitude)\).
points2mesh: Use fmesher::fm_bary() instead. 3-column matrix with points to be located in the mesh.
splitlines: Use fmesher::fm_split_lines() or fmesher::fmesher_split_lines() instead. A list with elements loc (3-column coordinate matrix) and idx (2-column index matrix) describing line segments that are to be split into sub-segments at triangle boundaries.
output: Names of objects to be included in the output, if different from defaults.
keep: When TRUE, for debugging purposes keep the fmesher I/O files on disk.

Value

A list of generated named quantities.

Author

Finn Lindgren finn.lindgren@gmail.com