RE : [ncl-talk] Re: adding a rectangle to a map

Thanks,
Despite the suggestion of James I am not able to add boxes on map.

Thank yoou for your time

Jamie Scott <James.D.Scott_at_noaa.gov> a écrit : Add this after your call to gsn_csm_map_ce:

; add boxes for regional averages
; add the box
;************************************************
  resb = True ; polyline mods desired
  resb_at_gsLineColor = "black" ; color of lines
  resb_at_gsLineThicknessF = 2.5 ; thickness of lines

 rega=new(4,graphic) ; new graphic variable -- one for each line in rectangle

 yptsa = (/25., -25., -25., 25.,25./) ;define lat points for each line
 xptsa = (/310., 310., 360., 360.,310./) ; define lon points for each line

;draw each line on plot
  do i = 0,3
    rega(i)=gsn_add_polyline(wks,plot,xptsa(i:i+1),yptsa(i:i+1),resb) ;draw line from start point to end point
 
  end do
;;;;;;;;;;;;;;;;;;

 Jamie Scott
 NOAA/ESRL/PSD
 james.d.scott_at_noaa.gov
  

On Dec 12, 2007, at 9:31 AM, ncl-talk-request_at_ucar.edu wrote:

Dear NCL users,
 

 I am trying to add rectagle on a map.
 

 There is way to modify the following NCL example to perform it?
 

 To add for exemple a rectangle bounded by coordinates
 

 (-50°, 0°) Longitude and (-25°, 25°) latitude.
 

 ;================================================;
 ; maponly_3.ncl
 ;================================================;
 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("ps","maponly") ; open a ps file
   gsn_define_colormap(wks,"wh-bl-gr-ye-re") ; choose a colormap
 

   res = True ; mods desdired
   res_at_mpOceanFillColor = 5 ; array index in color map
   res_at_mpLandFillColor = 164 ; for land, ocean, and inland h20
   res_at_mpInlandWaterFillColor = 54
 

   plot = gsn_csm_map_ce(wks,res) ; draw global map
 

   end
 

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Received on Thu Dec 13 2007 - 03:42:24 MST