Either the string "none" or the template URL
of a map server. If a URL is specified, it should refer to a
service that returns, in the form of a small, inline image, a
map depicting a bounding box given the boundary coordinates of
the box. The URL should contain four tokens, $N,
$S, $E, and $W, that
will be replaced by the coordinates of the box. Coordinates
are expressed in signed decimal degrees north of the equator
and east of the Greenwich meridian. The service can assume
that the coordinates will be valid. Note that the east
boundary will be less than the west boundary if the bounding
box crosses the +/-180 meridian.
Return to sample configuration files.