Create a map of the output of dodgr_flows_aggregate or dodgr_flows_disperse
Arguments
- net
A street network with a
flow
column obtained from dodgr_flows_aggregate or dodgr_flows_disperse- bbox
If given, scale the map to this bbox, otherwise use entire extend of
net
- linescale
Maximal thickness of plotted lines
Note
net
should be first passed through merge_directed_graph
prior to plotting, otherwise lines for different directions will be overlaid.
See also
Other misc:
compare_heaps()
,
dodgr_full_cycles()
,
dodgr_fundamental_cycles()
,
dodgr_insert_vertex()
,
dodgr_sample()
,
dodgr_sflines_to_poly()
,
dodgr_vertices()
,
merge_directed_graph()
,
summary.dodgr_dists_categorical()
,
write_dodgr_wt_profile()
Examples
graph <- weight_streetnet (hampi)
from <- sample (graph$from_id, size = 10)
to <- sample (graph$to_id, size = 5)
to <- to [!to %in% from]
flows <- matrix (
10 * runif (length (from) * length (to)),
nrow = length (from)
)
graph <- dodgr_flows_aggregate (graph, from = from, to = to, flows = flows)
# graph then has an additonal 'flows` column of aggregate flows along all
# edges. These flows are directed, and can be aggregated to equivalent
# undirected flows on an equivalent undirected graph with:
graph_undir <- merge_directed_graph (graph)
if (FALSE) { # \dontrun{
dodgr_flowmap (graph_undir)
} # }