Re: skewt

Hi Dennis:

Thank you very much for your help!

Sorry for my last email with a wrong subject. I clicked the wrong one to reply.

I tried your suggestion. It still does not work. Please see my script below. My ncl version is V.5.2. The information after the run is:

warning:Attempt to reference attribute (Cape) which is undefined
(0) -999
warning:Attempt to reference attribute (Cape) which is undefined
(0) -999

Regards
Ed

;*************************
;ncl script
;**************************
  wks = gsn_open_wks ("x11", "skewt_test_new")

; --- Create background skew-T; plot sounding ---------------------

  skewtOpts = True
  skewtOpts@DrawColAreaFill = True ; default is False
  skewtOpts@tiMainString = "Raob Data; No Winds"

  dataOpts = True ; no options

  dataOpts@PrintZ = True
  skewt_bkgd = skewT_BackGround (wks, skewtOpts)
  skewt_data = skewT_PlotData (wks, skewt_bkgd, pp,tt,tc,h \
                                    , wsp,dir, dataOpts)
  draw (skewt_bkgd)
  draw (skewt_data)
  frame(wks)

print(skewt_bkgd@Cape)
print(skewt_data@Cape)

--- On Mon, 2/27/12, Dennis Shea <shea@ucar.edu> wrote:

> From: Dennis Shea <shea@ucar.edu>
> Subject: Re: skewt
> To: "Yang Yang" <yang123yang@yahoo.com>
> Date: Monday, February 27, 2012, 1:24 PM
> Use
>     skewt_bkgd@Cape
>
> On 2/26/12 6:15 PM, Yang Yang wrote:
> > Hello:
> >
> > In the description of skewt, it shows:
> > Example: Let skewT be the returned object. The data mat
> be retrieved via:
> >     cape = skewT@Cape
> >     pwat = skewT@Pwat
> >
> > I wrote the following in my script as:
> > ;...............
> >    skewt_bkgd = skewT_BackGround (wks,
> skewtOpts)
> >    skewt_data =
> skewT_PlotData   (wks, skewt_bkgd, pp,tt,tc,h
> \
> >               
>                
>       , wsp,dir, dataOpts)
> >    draw (skewt_bkgd)
> >    draw (skewt_data)
> >    frame(wks)
> > print(skewt_data@Cape)
> > ;.........................
> >
> > However, when I run it, I got the following
> information:
> > warning:Attempt to reference attribute (Cape) which is
> undefined
> > (0)     -999
> >
> > But the CAPE value was shown in the diagram generated
> by my script.
> >
> > Can you tell me what is wrong? I use NCL
> >   Copyright (C) 1995-2010 - All Rights
> Reserved
> >   University Corporation for Atmospheric
> Research
> >   NCAR Command Language Version 5.2.0
> >   The use of this software is governed
> by a License Agreement.
> >   See http://www.ncl.ucar.edu/ for more
> details.
> >
> > Thank you very much!
> >
> > Ed
> > _______________________________________________
> > 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 Mon Feb 27 16:02:20 2012