inst/examples/gg.inla.mesh.R

In inlabru: Bayesian Latent Gaussian Modelling using INLA and Extensions

\donttest{
if (bru_safe_inla() &&
    require(ggplot2, quietly = TRUE) &&
    require(ggpolypath, quietly = TRUE)) {

  # Load Gorilla data
  data("gorillas", package = "inlabru")

  # Plot mesh using default edge colors

  ggplot() +
    gg(gorillas$mesh)

  # Don't show interior and exterior boundaries

  ggplot() +
    gg(gorillas$mesh, interior = FALSE, exterior = FALSE)

  # Change the edge colors

  ggplot() +
    gg(gorillas$mesh,
      edge.color = "green",
      int.color = "black",
      ext.color = "blue"
    )

  # Use the x-coordinate of the vertices to colorize the triangles and
  # mask the plotted area by the survey boundary, i.e. only plot the inside

  xcoord <- gorillas$mesh$loc[, 1]
  ggplot() +
    gg(gorillas$mesh, color = (xcoord - 580), mask = gorillas$boundary) +
    gg(gorillas$boundary)
}
}