Re: How can I draw polylines in panel plots ?

You have to use "gsn_add_polyline" when doing panels.
http://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_add_polyline.shtml

eg: http://www.ncl.ucar.edu/Applications/polyg.shtml
Example 11

lxf wrote:
> Hi,
> I met a strange problem which can not draw polylines on panel plots.
> I draw polylines in seperate plot and panel them with "gsn_panel", but what I get is just the last plot draw polyline in the panel.
> The scripts is as following:
> ;----------------------------------------------------
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
> begin
> fi = addfile("./slp.1963.nc","r") ;By the way, the dataset used here is
> ;http://www.ncl.ucar.edu/Applications/Data/cdf/slp.1963.nc
> slp=fi->slp
> printVarSummary(slp)
>
> wks = gsn_open_wks("x11","t")
> plot=new(2,graphic)
> res = True
> res_at_gsnDraw = False
> res_at_gsnFrame = False
> do i=0,1
> plot(i) = gsn_csm_contour(wks,slp(0,:,:),res)
> ypts = (/ 0, 0 /)
> xpts = (/ 0, 60/)
> resp = True ; polyline mods desired
> resp_at_gsnDraw = False
> resp_at_gsnFrame = False
> resp_at_gsLineColor = "red" ; color of lines
> resp_at_gsLineThicknessF = 2.0 ; thickness of lines
> resp_at_gsLineLabelString= "test" ; adds a line label string
> dum=gsn_add_polyline(wks,plot(i),xpts(0:1),ypts(0:1),resp)
> end do
> resPa = False
> gsn_panel(wks,plot(0:1),(/2,1/),resPa)
> end
> ;------------------
>
> Any advice is apreciated.
>
> Best wishes,
> Li
> 2008-10-21
>
>
>
>
> _______________________________________________
> ncl-talk mailing list
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Tue Oct 21 2008 - 06:04:59 MDT