marys.pol {stream.net} | R Documentation |
The projected map coordinates for the Arc/Info coverage of the boundary of the Marys River Watershed. The Marys River drains an 800 square kilometer watershed in western Oregon.
marys.pol
These data are derived from a "generate" format representation of
the coordinates of the single arc in the coverage of the boundary
of the watershed of the Marys River. The format is modified S/R
lines in a table (.tab) and the two columns are, as stipulated in
net.arcinput
:
x | x-coordinate |
y | y-coordinate |
Modified S/R format lines consist of two columns, the "x"
coordinate and the "y"
coordinate. Prior to the first
coordinate pair of each line is a row containing the line or
polygon identifier in the "x"
column and NA in the
"y"
column.
For a polygon, the first and last coordinate pairs are identical.
The map projection for these coordinates is Universal Transverse Mercator, Zone 10 using the Clarke 1866 Spheroid.
Derived from 30 meter Digital Elevation Model