Re: contouring negative and positive differently using gsn_contour

From: Dennis Shea (shea AT XXXXXX)
Date: Mon Nov 04 2002 - 13:40:46 MST

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    >
    >Is there a way to specify a different linestyle for negative and
    >positive contours in gsn_contour?
    >I need that to display 2D contours of vertical motion (solid lines for
    >upward and dashed lines for downward).
    >

    Contour Effects:

    http://www.cgd.ucar.edu/csm/support/CSM_Graphics/coneff.shtml

    There are several examples.

    PLease note that the following resources must be set:

        res@gsnDraw = False
        res@gsnFrame = False

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