About colormap

 Hi all:
   
  Given a colormap defined as gsn_define_colormap(wks,"WhiteBlue")

  and I want to change the color of polymarker simply by

  polyres@gsMarkerColor = "red"

  I find I can not change it into red.

  Does that mean the color which I can use is limited to the colormap that I've defined?

  All I miss sth to do the right thing.

regards

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Received on Sun Sep 16 07:11:26 2012