riverpoints | R Documentation |
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, ...)
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 |
Matt Tyers
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))
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