High-quality triangulations

Query information about an inla.mesh object.

inla.mesh.query(mesh, ...)

Arguments

mesh

An inla.mesh object.

...

Query arguments.

• tt.neighbours Compute neighbour triangles for triangles; list of vectors: list(triangles, orders)

• vt.neighbours Compute neighbour triangles for vertices; list of vectors: list(vertices, orders)

Value

A list of query results.

See also

inla.mesh.create(), inla.mesh.segment(), inla.mesh.lattice()

Author

Finn Lindgren finn.lindgren@gmail.com

Examples

loc <- matrix(c(0.1, 0.15), 1, 2)
lattice <- inla.mesh.lattice(
  seq(0, 1, length.out = 10),
  seq(0, 1, length.out = 10)
)
mesh <- inla.mesh.create(loc = loc, lattice = lattice, extend = FALSE)

vt <- which(inla.mesh.query(mesh,
  vt.neighbours = list(
    mesh$idx$loc,
    4:6
  )
)$vt.neighbours)
#> Warning: `inla.mesh.query()` was deprecated in INLA 23.08.18.
#> ℹ Does not yet have an `fmesher` alternative.
#> ℹ For more information, see
#>   https://inlabru-org.github.io/fmesher/articles/inla_conversion.html
#> ℹ To silence these deprecation messages in old legacy code, set
#>   `inla.setOption(fmesher.evolution.warn = FALSE)`.
#> ℹ To ensure visibility of these messages in package tests, also set
#>   `inla.setOption(fmesher.evolution.verbosity = 'warn')`.

mesh2 <- inla.mesh.create(mesh$loc,
  tv = mesh$graph$tv[vt, , drop = FALSE],
  refine = FALSE, extend = FALSE
)