Hi,
I'm trying to plot a map where all locations without values (_FillValue)
are transparent. I'm having trouble setting the background color to
transparent.
I'm using NCL 6.1.2 and I have tried using cellfill and setting:
mpres@cnMissingValFillColor = "transparent", but then the missing locations
are plotted using the background color.
I've tried to set the background color to transparent by defining my own
colormap:
colors = (/"transparent","black","White","RoyalBlue","LightSkyBlue"/)
gsn_define_colormap(wks, colors)
That resulted in:
warning:CvtStringGenArrayToCmap:Unable to find rgb of "transparent", using
white
or by setting wks values:
setvalues wks
"wkBackgroundColor" : "transparent"
"wkForegroundColor" : "black"
end setvalue
This resulted in:
fatal:NhlCvtStringGenArrayToFloatGenArray:Unable to Convert "transparent"
warning:Error retrieving resource wkBackgroundColor from args - Ignoring Arg
Is it possible to plot locations with missing data as transparent?
Would this work with rasterfill?
Thanks,
Ruben
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Received on Tue Mar 19 11:16:52 2013
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