Draw Points from River Locations

Adds points to an active plot. Works like points but with river locations (segments and vertices) rather than xy coordinates.

riverpoints(seg, vert, rivers, pch = 1, col = 1, jitter = 0, ...)

Arguments

seg	A vector of segments
vert	A vector of vertices
rivers	The river network object to use
pch	Point character, as a vector or single value
col	Point color, as a vector or single value
jitter	Maximum amount of random noise to add to "jitter" points if desired, so points do not overlap one another
...	Additional arguments for points

Examples

data(fakefish,Gulk)

plot(x=Gulk, xlim=c(862000,882000), ylim=c(6978000,6993000))
points(x=fakefish$x, y=fakefish$y, pch=16, col=2)
riverpoints(seg=fakefish$seg, vert=fakefish$vert, rivers=Gulk, pch=15, col=4)

plot(x=Gulk, empty=TRUE)
with(fakefish, riverpoints(seg=seg, vert=vert, rivers=Gulk,
       pch=16, col=flight, jitter=1000))