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How to plot great circles on a map? [message #15307]

Fri, 30 April 1999 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

I seem to recall there is a way to draw great circles on a map. However
the best I can come up with is

map_set, /orth, /isot, /cont, /grid
plots, [-45,-45], [45,-45]

I really want a line between the two points that takes the shortest
distance (in this case it would follow the longitude grid line).

Any hints?

---
Liam E. Gumley
Space Science and Engineering Center, UW-Madison
http://cimss.ssec.wisc.edu/~gumley

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How to plot great circles on a map?

By: Liam Gumley on Fri, 30 April 1999 00:00

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