| Procedure FILLCONTOUR [message #1609] |
Wed, 19 January 1994 10:51 |
scott
Messages: 17
Registered: January 1994
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Junior Member |
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Has anybody gotten good results using FILLCONTOUR or CONTOUR, /FILL
in IDL?
I have serious problems with these procedures, after trying "every trick
in the book" (Users Guide and Reference Guide).
I am trying to make maps of the world with color-filled contours of data
overlayed on them. There are missing values that need to be masked out.
Sounds simple enough, eh?
The problem is that both routines leave large areas of "background" color
unfilled wherever contours are "open" to the edge of the plot. This occurs
even when /CLOSE is specififed as a keyword. These areas have many
different ranges of values, but are all colored as if they have the same
value (very misleading to readers).
Also, the handling of missing values by "MAX_VALUE" appears not to work
properly, and the contours are _very_ rough (as in not smoothed),
consisting of just a handful of line segments rather than hundreds as I
expected. MIN_CURVE_SURF no longer works to fix this.
Any ideas?
--
A. Scott Denning (303)491-8346
<scott@abyss.atmos.colostate.edu>
Dept. of Atmospheric Science
Colorado State University
Fort Collins, CO 80523
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