Determines which mesh triangles fall inside barrier regions (e.g.,
coastlines, rivers, lakes). A triangle is marked as a barrier if its
centroid falls inside any barrier polygon.
Usage
barrier_triangles(mesh, barriers)
Arguments
- mesh
A tulpa_mesh object.
- barriers
An sf/sfc object defining barrier regions, or a list
of N x 2 coordinate matrices (each defining a closed polygon).
Value
A logical vector of length n_triangles. TRUE indicates
the triangle is inside a barrier region.