Re: wmlabs with loop plots

Dear Mary,

I tried them before, after and everywhere in between. Yes, I saw the examples from the webpage you mention. In fact, I used one of the examples to make my script, the main difference being the loop.

Do you have a better way to add filled arrows to a plot similar to those in example 7 (http://www.ncl.ucar.edu/Applications/Images/weather_sym_7_lg.png)? I did not see any visually pleasing arrows from http://www.ncl.ucar.edu/Document/Graphics/Images/font34.png.

Thanks in advance!

Jeremy

On Apr 21, 2014, at 11:41 AM, Mary Haley <haley@ucar.edu<mailto:haley@ucar.edu>>
 wrote:

Jeremy,

The wmxxxx functions are rather limited.

In order to have them draw correctly, try drawing them *after* you draw the plot, and not before.

Did you see some of our examples at:

http://www.ncl.ucar.edu/Applications/weather_sym.shtml

—Mary

On Apr 17, 2014, at 8:27 PM, Jeremy Stephan Pal <jpal@MIT.EDU> wrote:

Hello,

I am trying to plot weather symbols (arrows) on multiple plots using a loop. The arrows appear on the first plot, but do not on subsequent plots. A somewhat similar post back in 2007 indicated that it may be a problem related to memory and a work around is to delete the plot (http://www.ncl.ucar.edu/Support/talk_archives/2007/0210.html). Unfortunately, deleting the plot does not work for me. The relevant portion of my script appears below. I have also tried deleting wks and making unique names for wks and plot with no success.

Any help is much appreciated!

Thanks,

Jeremy

...

do istation=0,nstation-1

blah blah blah

wks = gsn_open_wks ("X11",fname)

wmlabs(wks,0.445,0.78,"Arrow")

res = True
res@gsnDraw = False
res@gsnFrame = False

blah blah blah

plot0 = gsn_csm_xy(wks,time_ref,var_mprf,res)

blah blah blah

draw(plot0)
frame(wks)

blah blah blah

if (isdefined("plot0")) then delete(plot0) end if

end do

...

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Received on Tue Apr 22 11:38:20 2014