[ncl-talk] Contour fill transparency not working with RasterFill mode

[Guido Cioni]

Hi,
I'm trying to plot filled contour of wind speed overlaid on a map. In order to mask small values of winds I've both masked the original data and set the first color of the color palette as transparent, i.e. 

cmap_r=read_colormap_file("wind_17lev")
cmap_r(0,3)=0.0
ResC at cnFillPalette= cmap_r

However, when drawing with ResC at cnFillMode = "RasterFill", this causes the Missing Values to be coloured with white instead that being transparent, as you can see in the attached picture. 


Going back to old discussion this seems to be an old problem that was fixed in 6.2.0. Am I wrong? 

I'm attaching the script that I'm using, although it is not 100% clean.
Cheers 


Guido Cioni
http://guidocioni.altervista <http://guidocioni.altervista/>.org

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