| overlaying graphs on top of maps [message #45710] |
Fri, 30 September 2005 08:30  |
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Martin[1]
Messages: 8
Registered: December 2004
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Junior Member |
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Hi guys,
I'm trying to overlay several graphs on top of a map projection in
order to show varying degrees of pollution in different parts of the
globe.
Out of naivety or optimism I tried using OPLOT although I got the
error;
% OPLOT: Value of Latitude is out of allowed range.
Could someone give me a clue about how to go about doing this at all? I
have a sneaking suspicion that someone will say Object Graphics!
Thank you!
Martin..
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| Re: overlaying graphs on top of maps [message #45786 is a reply to message #45710] |
Tue, 04 October 2005 00:44  |
peter.albert@gmx.de
Messages: 108
Registered: July 2005
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Senior Member |
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Hi Martin,
from your error message I would rather think that something with your
longitude / latitude data is wrong instead of the technique used. If,
just as an example, I try something like
IDL> map_set, /hires
IDL> oplot, indgen(360), indgen(360)/2-90, psym=4
it does exactly what it should.
However, I can't get the error message, neither with the lat or lon
values exceeding 360 or 180°, respectively, neither with NaN or Inf
values. But anyway I would carefully check what loacations you are
trying to plot.
Cheers,
Peter
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