Bug in skewt_func.ncl

Hello,

I am running NCL 5.2.0, and I'm not certain whether this issue has been fixed in later issues of NCL, but I haven't seen any information in the bug fix sections of the 5.2.1 or 6.0.0 release information. When attempting to show the CAPE parcel line, I noticed that no matter what value I assigned to dataOpts@linePatternCape, the dash pattern remains the same (1). Upon investigation of the code for skewt_func.ncl, I found the if...then block responsible for assigning the dash pattern [note, this is V6.0.0 code, lines 833-835 (identical to lines 1910-1912)]:

          if (isatt(localOpts,"gsLineDashPatternCape")) then
              gsOpts@gsLineDashPattern = localOpts@linePatternCape
           end if

By changing the if statement to read

         if (isatt(localOpts, "linePatternCape")) then

the issue is resolved. I suppose the other possibility to fixing this issue would be to update the documentation on the website to reflect that the proper dataOpts attribute would be gsLineDashPatternCape. HTH if anyone else has run into this issue.

-Dave
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Received on Thu Jun 16 13:48:11 2011