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{import:NavigationMenu}
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To
...
export
...
shoreline
...
data,
...
which
...
are
...
automatically
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downloaded
...
from
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the
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World
...
Vector
...
Shoreline
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(National
...
Geospatial-Intelligence
...
Agency
...
-
...
NGA).
...
The
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resolution
...
of
...
this
...
dataset
...
is
...
about
...
500
...
m.
...
“Draw Polygon” to select a polygon inside which extracting the shoreline. “Load Polygon” to load an existing polygon (“.pol”). “Export” to export the polygong in “.ldb” format.