Steve,
There is a class LinearLatLonSet that extends Linear2DSet and
is intended to address this issue. It does for interpolation
(via the valueToInterp method) but does not yet for makeIsoLines
or other display methods. Maybe I can finish this up as part of
the Java2D display work this summer.
Bill
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Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI 53706
whibbard@xxxxxxxxxxxxx 608-263-4427 fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html