Re: Contour error

Hi David,
I will add that, although the 'Quirk' discussing this problem does
not mention it, a possible workaround for this situation is to switch
the fill mode to raster mode with smoothing. The appearance in most
cases is almost identical to the area fill method.

Try setting:

"cnFillMode" to "RasterFill"
and
"cnRasterSmoothingOn" to True.

  -dave

On Mar 25, 2009, at 10:37 PM, Dennis Shea wrote:

> Please see:
>
> http://www.ncl.ucar.edu/qtips.shtml
>
> Look under "Quirk"
>
> =====================
>
>
>
> David Small wrote:
>> Hello everyone,
>>
>> I’m trying to make maps with contours of tropopause theta and wind
>> (barbs) from ERA40 data. My code cycles through all the values
>> for each
>> month (120 in all). For 115 of the maps, I get beautiful
>> results. For
>> 5 of them, I get the following error:
>>
>> fatal:ContourPlotPreDraw: ARSCAM/ARPRAM - ALGORITHM FAILURE
>> fatal:ContourPlotDraw: draw error
>> warning:WorkstationDeactivate: workstation not active or not opened
>>
>> Why do I only get this error for 5 of the 120 fields in the data
>> and how
>> do I correct it? The fields are complete.
>>
>> Thanks.
>>
>> Dave
>> --
>> David Small
>> Graduate Research Assistant
>> Department of Atmospheric and Oceanic Sciences
>> McGill University
>> Montreal, Quebec, Canada
>>
>>
>> ---------------------------------------------------------------------
>> ---
>>
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Received on Thu Mar 26 2009 - 11:06:11 MDT