Re: Add markers or curves to existing xy2 plot array

Hi Wenshan,

ok, let me see if I understand it right. You want to create xy2 plots
and add 2 marker to
each single plot. Within a loop you have to be sure that the names of
the variables (dum_left,
dum_right) containing the graphical information of the marker are unique.

do i=0,n
   plot(i) = gsn_csm_xy2(...)
*dum_left* = unique_string("markl")
*plot1*@*$dum_left$* = gsn_add_polymarker(wks,plot(i),x,y1,res1)
*dum_right* = unique_string("markr")
*plot1*@*$dum_right$* = gsn_add_polymarker(wks,plot(i),x,y2,res1)
end do

Hope this helps. If not, please send the script and your data (if
possible), because it is very
difficult to help without knowing it.

Bye,
Karin

Am 17.07.14 06:36, schrieb Wenshan Wang:
> Hi Karin,
>
> Which one exactly do you mean?
> Sorry I didn't see any one that can solve my problem here.
>
> Let me see if I can explain my situation better.
> I have several panels on one page. On each panel, the XY plot has two
> different y-axes.
> I use:
> do i = 0, n
> plot(i) = gsn_csm_xy2(...)
> end do
>
> Then I want to add markers to each panel on both y-axes.
> Basically, I want something like
> 1 do i = 0, n
> 2 plot(i) = gsn_csm_xy2(...)
> 3 dum_left(i) = gsn_add_polymarker(wks, plot(i), x, y1, res1)
> 4 dum_right(i) = gsn_add_polymarker(wks, *plot(i)@xy2*, x, y2, res2)
> 5 end do
>
> but of course, line 4 is not right in syntax.
> I was wondering whether there is a way to do so.
>
> Thank you very much for your time!
>
> Best,
> Wenshan
> ------------------------------------------------------------------------------
> Graduate Student Researcher
> Earth System Science
> University of California, Irvine
>
>
> On Wed, Jul 16, 2014 at 2:19 PM, Karin Meier-Fleischer
> <meier-fleischer@dkrz.de <mailto:meier-fleischer@dkrz.de>> wrote:
>
> Hi Wenshan,
>
> take a look at the examples of the gsn_add_polymarker page:
>
> https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_add_polymarker.shtml
>
> Bye,
> Karin
>
> Am 16.07.2014 um 22:51 schrieb Wenshan Wang <wenshanw@uci.edu
> <mailto:wenshanw@uci.edu>>:
>
>> Hi NCL users,
>>
>> I was wondering how to add markers or curves to an existing XY
>> plot with two different y/x axes.
>> I find how to do it with scaler plot from xy_25.ncl and xy_26.ncl:
>> dum1 = gsn_add_polyline(wks,plot@xy2,time,p1,lnres)
>> What if my plot is an array?
>> I tried plot(i)@xy2 or plot@xy2(i); but they didn't work,
>> actually as I expected.
>> So it there a way to complete this?
>>
>> Thank you!
>>
>> Best,
>> Wenshan
>> ------------------------------------------------------------------------------
>> Graduate Student Researcher
>> Earth System Science
>> University of California, Irvine
>> _______________________________________________
>> ncl-talk mailing list
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>
>
>

--
Dipl. Geophys. Karin Meier-Fleischer
Application Support, Visualization

Deutsches Klimarechenzentrum GmbH E-Mail: meier-fleischer@dkrz.de
Bundesstrasse 45a Internet: http://www.dkrz.de/
20146 Hamburg Phone: +49 (0)40 460094 126
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Received on Thu Jul 17 07:48:55 2014