plot.topo {oce} | R Documentation |
Plot contours of topographic data.
## S3 method for class 'topo': plot(x, water.z, water.colors, land.z, land.colors, legend.loc="topright", lwd=par("lwd"), ...)
x |
an topo object, e.g. as read by read.topo . |
water.z |
depths at which to plot water contours. If not provided, these are inferred from the data. |
water.colors |
colors corresponding to water.z values. If
not provided, these will be "fill" colors from
gebco.colors . |
land.z |
depths at which to plot land contours. If not provided, these are inferred from the data. |
land.colors |
colors corresponding to land.z values. If
not provided, these will be "fill" colors from
gebco.colors . |
legend.loc |
location for a legend (or FALSE, for no legend). |
lwd |
line width for contours |
... |
additional arguments passed on to plotting functions |
The plot aspect ratio is set based on the middle latitude in the plot. Be aware that the ETOPO2 data are on a 2-minute (roughly 2-mile) spacing, and coastlines created with such data can be quite inaccurate on scales of 100km or less.
Dan Kelley
TOPO data can be created with read.topo
and
summarized with summary.topo
.
library(oce) data(topo.maritimes) plot(topo.maritimes)