Constraint segments for inla.mesh

Description

since ⁠23.08.18⁠. Use fmesher::fm_segm() instead.

Constructs inla.mesh.segment objects that can be used to specify boundary and interior constraint edges in calls to inla.mesh().

Usage

inla.mesh.segment(...)

inla.contour.segment(...)

Arguments

Value

An fm_segm object.

Functions

• inla.contour.segment(): since ⁠23.08.18⁠. Use fmesher::fm_segm_contour_helper() instead.

Author(s)

Finn Lindgren finn.lindgren@gmail.com

See Also

inla.mesh.create(), inla.mesh.2d()

Examples

require("fmesher")
## Create a square boundary and a diagonal interior segment
loc.bnd <- matrix(c(0, 0, 1, 0, 1, 1, 0, 1), 4, 2, byrow = TRUE)
loc.int <- matrix(c(0.9, 0.1, 0.1, 0.6), 2, 2, byrow = TRUE)
segm.bnd <- fm_segm(loc.bnd)
segm.int <- fm_segm(loc.int, is.bnd = FALSE)

## Points to be meshed
loc <- matrix(runif(10 * 2), 10, 2) * 0.9 + 0.05
mesh <- fm_rcdt_2d_inla(loc,
  boundary = segm.bnd,
  interior = segm.int,
  refine = list()
)
plot(mesh)

mesh <- fm_rcdt_2d_inla(loc, interior = fm_segm_join(segm.bnd, segm.int))
plot(mesh)