isflowconnected {riverdist} | R Documentation |
Check Flow-Connectedness
Description
Checks to see if two segments are flow-connected. Called internally within riverdirection and upstream.
Usage
isflowconnected(seg1, seg2, rivers, stopiferror = TRUE, algorithm = NULL)
Arguments
seg1 |
First input segment |
seg2 |
Second input segment |
rivers |
The river network object to use |
stopiferror |
Whether or not to exit with an error if a route cannot be
found. If this is set to |
algorithm |
Which route detection algorithm to use ( |
Value
Logical TRUE
if the two segments are flow-connected, FALSE
if they are not
Note
The river mouth must be specified (see setmouth).
Author(s)
Matt Tyers
Examples
data(Gulk)
plot(Gulk)
Gulk <- setmouth(seg=1, vert=1, rivers=Gulk)
isflowconnected(seg1=13, seg2=14, rivers=Gulk)
isflowconnected(seg1=13, seg2=1, rivers=Gulk)
[Package riverdist version 0.16.3 Index]