match_pts_to_graph
Match spatial points to a spatial graph which contains vertex coordinates
match_pts_to_graph(verts, xy, connected = FALSE)
verts |
A |
xy |
coordinates of points to be matched to the vertices, either as
matrix or sf-formatted |
connected |
Should points be matched to the same (largest) connected
component of graph? If |
A vector index into verts
Other misc:
compare_heaps(),
dodgr_flowmap(),
dodgr_full_cycles(),
dodgr_fundamental_cycles(),
dodgr_insert_vertex(),
dodgr_sample(),
dodgr_sflines_to_poly(),
dodgr_vertices(),
match_points_to_graph(),
merge_directed_graph(),
summary.dodgr_dists_categorical(),
write_dodgr_wt_profile()
net <- weight_streetnet (hampi, wt_profile = "foot")
verts <- dodgr_vertices (net)
# Then generate some random points to match to graph
npts <- 10
xy <- data.frame (
x = min (verts$x) + runif (npts) * diff (range (verts$x)),
y = min (verts$y) + runif (npts) * diff (range (verts$y))
)
pts <- match_pts_to_graph (verts, xy)
pts # an index into verts
pts <- verts$id [pts]
pts # names of those verticesPlease choose more modern alternatives, such as Google Chrome or Mozilla Firefox.