[ncl-talk] plotting two variables in the same plot.

[Geeta Geeta]

thanks Dennis. 
I was trying to plot all the nearby pixels (2780/26 and 2781/26 and so on...) in only ONE plot to know the longitudinal extent of the thunderclouds along with their heights. What I am able to see presently is only one/individual cells not as a group of cells. 
for example in the TXT file, I have selected      Rainrate   NSCAN   NPIX     NLEVEL    34.97       2797         14         68    49.18       2803         28         68    30.78       2842         20         68    53.60       2846         19         68    45.39       2847         19         68    32.31       2849         22         68    32.62       2870         26         68    37.04       2871         26         68    74.36       2872         26         68    35.24       2873         26         68    39.35       2875         42         68    30.52       2903         44         68    36.93       2911         46         68
I want to plot all of these points in Bold together in one plot as they are a part of a group. 
thank you. 

 
 

    On Sunday, 21 August 2016 8:16 PM, Dennis Shea <shea at ucar.edu> wrote:
 

 By default,  'gsn_csm_contour' draws and plots each frame.
 
The panel page:
   http://www.ncl.ucar.edu/Applications/panel.shtml

  Res at gsnDraw  = False           ; don't draw
  Res at gsnFrame = False           ; don't advance frame
...
One approach:

    Plot = new( 2, "graphic)
    Plot(0) =   gsn_csm_contour(Wks_NPIX_FIX,RF_NPIX_FIX,Res) 
    [snip]
    PLot(1) =   gsn_csm_contour(Wks_NPIX_FIX,RF_NPIX_FIX,Res) 

;************************************************
  resP                                = True                 ; modify the panel plot
  resP at gsnMaximize        = True                 ; make large: ps, pdf, eps
; resP at gsnPanelMainString = "A common title"     ; new resource added in NCL V6.4.0
  resP at txString           = "A common title"     ; use this for NCL V6.3.0 and earlier
               
  gsn_panel(wks,Plot,(/2,1/),resP)               ; vertical
  gsn_panel(wks,Plot,(/1,2/),resP)               ; horizontal
~

On Sun, Aug 21, 2016 at 7:55 AM, Geeta Geeta <geetag54 at yahoo.com> wrote:

I am plotting the orbital data (rain rate) from TRMM. In this data, lat and lon are itself 2 dim. Rainrate is a 3 dim variable and is varying as per nscan (data along the swath, 9248), npix (49), and nlevel (80).   I have extracted all the points within a domain (5-20N/72-84E) which exceed a rain rate of 30mm/hr.  I got a number of adjacent points where the rain rate is exceeding the above mentioned threshold (RF.txt20080402 file attached. 1st column is rain rate, 2nd column is NSCAN, 3rd column is NPIX and 4th column is NLEVEL.
I been able to get a plot of height vs longitudes (nscan) for a fixed point (say 2870/26 where 2870 is nscan and 26 is the npix for which rainrate is more than 30mm/hr..plot attached). Now I wish to add ht vs longitude plot for the adjacent point say 2871/26 too in the SAME plot. But two separate plots are created. I dont know how to go about doing this.   Pls suggest. 
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