Re: xy marker

Thank you very much, gsn_add_polymarker is working perfectly.

_____________________________________________________
Ahmed Lasheen | TEL:518-496-8096
MS Student At university At Albany, SUNY
Department of Atmospheric and Environmental science.
University at Albany, State University of New York1400 Washington Avenue,
Albany, NY 12222
--------------------------------
Diploma In Meteorology
Researcher at Cairo Numerical Weather Prediction Center (CNWPC)
Egyptian Meteorological Authority(EMA)
Cairo,Egypt
http://nwp.gov.eg/index.php/nwp

On Fri, May 3, 2013 at 10:14 AM, Mary Haley <haley@ucar.edu> wrote:

> Hi Ahmed,
>
> Rick is right, gsn_add_polymarker would be best here.
>
> What you are doing is first calling gsn_csm_xy, which draws the plot and
> then advances to the next frame.
>
> When you call gsn_polymarker, then, the marker gets drawn by itself on the
> next frame. But, gsn_polymarker
> doesn't have a frame call, which means the frame with the marker will pop
> up but then quickly disappear.
>
> It's better to use gsn_add_polymarker. Try these three lines in place of
> gsn_polymarker:
>
>
> mkid = gsn_add_polymarker(wks,plot,20,new_u,mres)
> draw(plot)
> frame(wks)
>
>
> Note that now you will see two frames: the first one will just be the XY
> plot, and the second one will be the XY plot with the marker.
> If you want to turn the first draw off, add these two lines before you
> call gsn_csm_xy:
>
> res@gsnDraw = False
> res@gsnFrame = False
>
> --Mary
>
> On May 2, 2013, at 9:29 PM, Ahmed Lasheen wrote:
>
> > Hello,
> > I use the example http://www.ncl.ucar.edu/Applications/Scripts/xy_1.nclfor xy plot as a test for gsn_add_plymarker and it didn't work
> > I just add the following lines to the script
> >
> > ; polygon resources
> > mres = True
> > mres@gsMarkerIndex = 16 ; marker style (circle)
> > mres@gsMarkerSizeF = 9.0 ; marker size
> > mres@gsMarkerColor = "black" ; maker color
> > new_u=u(0,{20},{82})
> > gsn_polymarker(wks,plot,20,new_u,mres) ; draw at value of u for
> lat 20.
> > Hopefully to put marker at latitude 20.
> >
> > I attached the script.
> > Thanks in advance
> >
> >
> >
> > _____________________________________________________
> > Ahmed Lasheen | TEL:518-496-8096
> > MS Student At university At Albany, SUNY
> > Department of Atmospheric and Environmental science.
> > University at Albany, State University of New York
> > 1400 Washington Avenue, Albany, NY 12222
> > --------------------------------
> > Diploma In Meteorology
> > Researcher at Cairo Numerical Weather Prediction Center (CNWPC)
> > Egyptian Meteorological Authority(EMA)
> > Cairo,Egypt
> > http://nwp.gov.eg/index.php/nwp
> >
> >
> >
> > On Thu, May 2, 2013 at 9:36 PM, <brownrig@ucar.edu> wrote:
> > Hi,
> >
> > What didn't work about it? You may need to use gsn_add_polymarker,
> depending upon your script. Posting your script would help in determining
> the problem.
> >
> > Rick
> >
> >
> > On Thu, 2 May 2013 18:53:57 -0400
> > Ahmed Lasheen <ahmed4kernel@gmail.com> wrote:
> > Hello everyone,
> > I am trying to put marker on XY plot for specific x axes point, I used
> > gsn_polymarker but it doesn't work.. Anybody know how to put marker on XY
> > plot at certain X Values.
> >
> > Thanks in advance
> >
> > _____________________________________________________
> > Ahmed Lasheen
> > MS Student At university At Albany, SUNY
> > Department of Atmospheric and Environmental science.
> > University at Albany, State University of New York1400 Washington Avenue,
> > Albany, NY 12222
> > --------------------------------
> > Researcher at Cairo Numerical Weather Prediction Center (CNWPC)
> > Egyptian Meteorological Authority(EMA)
> > Cairo,Egypt
> > http://nwp.gov.eg/index.php/nwp
> >
> >
> > <xy_1.ncl>_______________________________________________
> > ncl-talk mailing list
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> > http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>

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Received on Fri May 3 10:36:14 2013