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Calls plot.rivernetwork and automatically zooms to a specified segment or vector of segments. Not intended for any real mapping - just investigating and error checking.
zoomtoseg(seg, rivers, ...)
A segment or vector of segments to zoom to
The river network object to use
Additional plotting arguments (see par)
Matt Tyers
data(Kenai3) plot(x=Kenai3) # checking out a particularly messy region... zoomtoseg(c(110,63), rivers=Kenai3)
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