vcMapDirection resource

From: wxtofly <wxtofly_at_nyahnyahspammersnyahnyah> Date: Wed Aug 03 2011 - 23:54:24 MDT · This archive was generated by hypermail 2.1.8 : Fri Aug 05 2011 - 14:53:55 MDT

I am confused by this resource as the examples
        are not consistent with its use and I don't really understand
        what it does in the absence of an underlying map as on the
        attached windgram plots.

        

        I have attached two of my windgrams, one produced without any
        mention of vcMapDirection which therefore would use the true
        default, and the other with

        uv_res@vcMapDirection=false.  As you can see they are nearly but
        not exactly identical.  (gwenview  or something similar next
        prev to rock between them)

        

        On the NCAR site, the 1 special example meteo.ncl uses
        uv_res@vcMapDirection=false.  The 5 wrf_meteo(1-5).ncl omit the
        resource.  Which is "correct."   

        What would I expect the effects to be?

        

        Thanks for you help.

        

        TJ Olney