john,
what problem are you having? A better choice might be to use polymarkers
rather than text. there is a + polymarker
http://www.ncl.ucar.edu/Document/Graphics/Images/markers.gif
here is an example of adding polymarkers to a page:
http://www.ncl.ucar.edu/Applications/polyg.shtml
see example 3
sylvia
On Thu, 3 Jun 2004, John Filipkowski wrote:
>
> Hi,
>
> I'm trying to plot a map of the Atlantic Ocean, with some points annotated.
>
> Here's what I'm trying to use--I'm trying to plot a "+" sign at the latitude
> and longitude specified below.
>
> Any suggestions? Thanks in advance!
>
> ;================================================;
> ; newsat.ncl
> ;================================================;
> load "$NCARG_ROOT/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/ncarg/nclscripts/csm/gsn_csm.ncl"
> ; ================================================;
> begin
> ;************************************************
> ; create plot
> ;************************************************
> wks = gsn_open_wks("pdf","sat") ; open a pdf file
> gsn_define_colormap(wks,"testcmap") ; choose colormap
> i = NhlNewColor(wks,0.8,0.8,0.8) ; add gray to map
>
> res = True ; plot mods desired
> xyres = True
>
>
> res@mpProjection = "Satellite" ; choose map projection
> res@mpCenterLonF = -75. ; choose center lon
> res@mpCenterLatF = 35. ; choose center lat
>
> res@mpCenterRotF = -90. ;
>
> res@mpLimitMode = "LatLon" ; required
> res@mpMinLatF = 8. ; min lat
> res@mpMaxLatF = 65. ; max lat
> res@mpMinLonF = -110. ; min lon
> res@mpMaxLonF = -40. ; max lon
>
> res@pmTickMarkDisplayMode = "Always" ; turn on automatic tickmarks
> res@mpGridAndLimbOn = True ; turn on lat/lon lines
>
> res@mpGridLatSpacingF = 5 ; Lat spacing (degrees)
> res@mpGridLonSpacingF = 5 ; Lon spacing (degrees)
>
> ;res@mpGridMaskMode = "MaskLand" ; Mask grid over land.
> res@mpGridMaskMode = "MaskNone" ; Mask grid over land.
> res@mpPerimOn = False ; Turn off perimeter
>
> res@gsnMaximize = True ; enlarge plot
> ;res@tiMainString = "Example of Zooming a Sat Projection"
> ;res@gsnAddCyclic = False
>
> res@gsnFrame = False
> ;
> ; Now plot a point indicating 46.77 N 48.016 W
> ;
> ; first, set parameter so wmlabs uses lat/lon instead of x/y
> wmsetp("ezf",0)
>
> plot = gsn_csm_map(wks,res)
>
> gsn_text_ndc(wks,"+", 46.77, -48.016,res)
> frame(wks)
>
> end
>
>
>
>
> The information contained in this e-mail is intended only for the individual or entity to whom it is addressed.
> Its contents (including any attachments) may contain confidential and/or privileged information.
> If you are not an intended recipient you must not use, disclose, disseminate, copy or print its contents.
> If you receive this e-mail in error, please notify the sender by reply e-mail and delete and destroy the message.
******************************************************
Sylvia Murphy EML: murphys AT ucar.edu
NCAR CGD/CSEG PHN: 303-497-1720
1850 Table Mesa Drive FAX: 303-497-1333
Boulder CO 80305
WEB: http://www.cgd.ucar.edu/csm/support/
http://www.cgd.ucar.edu/csm/support/CSM_Graphics/
******************************************************
_______________________________________________
ncl-talk mailing list
ncl-talk AT ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
This archive was generated by hypermail 2b29 : Fri Jun 04 2004 - 08:42:51 MDT
