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 - 14:31:22 MDT