RE: [ncl-talk] Revisit Dateline Problem

Thank you, Michael,
 
I added res_at_mpCenterLonF and now my sample script works as expected.
 
I'll play with the trajectories next and see how they work out.
 
Aloha,
Craig
 
Joint Typhoon Warning Center
Pearl Harbor HI

________________________________

From: Michael Notaro [mailto:mnotaro_at_wisc.edu]
Sent: Tue 4/17/2007 10:31 AM
To: Motell, Craig E CIV NAVPACMETOCCEN JTWC,
Cc: ncl-talk_at_ucar.edu
Subject: Re: Revisit Dateline Problem

Try res_at_mpCenterLonF = 175

On Apr 17, 2007, at 3:24 PM, Motell, Craig E CIV NAVPACMETOCCEN JTWC, wrote:

        Dear NCL Users:
         
        This is my first posting, so I apologize for not knowing correct protocol:
         
        I am trying to make a plot around Midway Island (which is near the date). I would like a box
        to go from 20N to 35N, and 170E to 170W (or 20,-170, to 35, 175). Later I will try to plot trajectories.
         
        I see in an earlier posting a discussion of how to handle the dateline issue when plotting trajectories.
        I'm stuck at just getting the map to show correctly:
         
        Below is my code, and if I replace 181 with 180 everything works fine. Also, I tried the obvious
        of going from -175 to 170 but that doesn't work either.
         
        Two questions:
        1) In an earlier email I see there is a reference to an attached script that fixes this problem
        (see talk_archives/2006/0968.html) but I don't know how to get an attached script?
         
        or
         
        2) Can someone point me out how to correct the problem below
         
        ;*************************************************
        ; question.ncl
        ;
        ; Used to test dateline question
        ;*************************************************
        load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
        load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
        ;**************************************************
        begin
           wks = gsn_open_wks("x11","traj") ; open workstation
           res = True ; map resources
           res_at_gsnDraw = False ; don't draw
           res_at_gsnFrame = False ; don't advance frame
           res_at_mpMaxLatF = 35 ; select subregion
           res_at_mpMinLatF = 20
           res_at_mpMinLonF = 170 ; also tried -179
           res_at_mpMaxLonF = 181 ; also tried 170
           res_at_tiMainString = "Example of a Dateline Issue" ; title
        
          
           map = gsn_csm_map_ce(wks,res) ; create map
        ;
           draw(map)
           frame(wks)
          
        end
         
         
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Received on Tue Apr 17 2007 - 14:54:38 MDT