| map_set question [message #17131] |
Thu, 16 September 1999 00:00 |
Colin Peterson
Messages: 1
Registered: September 1999
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Junior Member |
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
If anyone still has the IDL 4.0 User's Guide (1995) please look at page
19-10 to help in answering my question here. The picture for the
Oblique Cylindrical Equidistant map projection interests me because I would
like to see both poles. I'm using IDL 5.2 on UNIX so that might make
a difference, but if I type the command on page 19-11:
<p><font face="Courier New,Courier">map_set, 0, 0, 45, LONDEL = 20, LATDEL
= 20, $</font>
<br><font face="Courier New,Courier"> /GRID, /CONTINENT, /CYL, TITLE='...'</font>
<p>to produce this map, it comes up with a simple cylindrical map, but
the whole map actually rotates 45 degrees, ie the edges of the map are
now 45 degrees from their original horizontal and vertical positions.
I would expect the <font face="Courier New,Courier">ROT</font> value of
45 to create the map on page 19-10 as the book says, but it does not.
Can anyone explain this discrepancy in the book, and how I can create that
map on page 19-10? Thanks.
<p>Colin</html>
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