Problem with use of cbarn and user defined functions

[Dan Leins]

Mac,

I think the proper syntax in the script would be something along the lines
of

'run cbarn 1 0 6.0 0.65 '

I don't know if it makes a difference, but is the cbarn skip called "cbarn"
or "cbarn.gs"? If it's called cbarn.gs, then you'll likely need to include
the ".gs" when you call the script.

HTH,
Dan

On 10/18/07, mmacleod <mmacleod at scotiaweather.com> wrote:
>
> Good morning All.
>
> I have a recurring problem with both GrADS version 1.8.11 on Windows XP
> and on 1.9.4b on Red Hat E4.1 Linux version.
>
> When I plot a 2-D map and use the cbarn.gs or the user function hilo the
> draw instructions seems to loose the x position on the page and shifts
> even line to the left margin.  See attached maps
> "NAM_NovaS_LowLvlMoistConv-WindsH03-Cor.png" which contains the plot
> without cbarn being executed within the script script section below:
>
> ------ Script lines ----------
> 'set font 0'
> 'set strsiz 0.20 0.20'
> 'draw string 3.5 8.20 Scotia Weather Services Inc'
> 'set strsiz 0.12 0.12'
> 'draw string 0.35 7.95 NWS NAM Model 0-30 mb Horizontal Moisture
> Divergence and 0-30 mb AGL WInd Direction and Speed'
> 'set strsiz 0.15 0.15'
> 'set strsiz 0.12 0.12'
>
>
> if(xx > 9)
>
> *  This inserts the valid model output date and time for the current time
>   'draw string 2.5 0.15 ' xx ' Hr Prog valid at ' time1 ' - ' time3 ' -
> ' time2 ' - ' time4
>   'set strsiz 0.1 0.1'
>   'draw string 1.95 0.5 ___ 0-30 mb Horizontal Moisture Divergence (E
> -06 kg/kg/s) amd 0-30 mb wind barbs  '
>
> *  This displays the valid date and time of the model run so one does
> not get confused when several model runs are available.
>
>   'set strsiz 0.09 0.09'
>     'draw string 0.25 0.40 Model run from '
>   'draw string 0.25 0.25 ' timea '-' timeb '-' timec '-' timed ' '
>   'draw rec .20 .20 1.75 0.55 '
>
> 'set gxout contour'
> 'cbarn 1 0 6.0 0.75 '
>
>
> 'printim ' fileset  xx '.png x1000 y800 '
>
> else
>
>
> *  This inserts the valid model output date and time for the current time
>   'draw string 2.5 0.15 0' xx ' Hr Prog valid at ' time1 ' - ' time3 '
> - ' time2 ' - ' time4
>   'set strsiz 0.1 0.1'
>    'draw string 1.95 0.4 ___ 0-30 mb Horizontal Moisture Divergence (E
> -06 kg/kg/s) amd 0-30 mb wind barbs  '
>
> *  This displays the valid date and time of the model run so one does
> not get confused when several model runs are available.
>
>   'set strsiz 0.09 0.09'
>   'draw string 0.25 0.40 Model run from '
>   'draw string 0.25 0.25 ' timea '-' timeb '-' timec '-' timed ' '
>   'draw rec .20 .20 1.75 0.55 '
> 'set gxout contour'
> 'cbarn 1 0 6.0 0.65 '
>
> 'printim ' fileset '0' xx '.png x1000 y800 '
> endif
>
> ----- End of Script Lines ------
>
> Once cbarn is run and until I reinitialize GrADS, all script runs will
> then move the draw lines tight to the left margin as shown in the
> attached map "NAM_NovaS_LowLvlMoistConv-WindsH03.png"
>
> Even if I run a scrip that does not have the "run cbarn  " line in it,
> the draw statements place the margins tight to the left margin.
>
> The same thing occurs with the use of the hilo user function for the
> placement of high and low centres on the  MSL maps.
>
> It appears to be a memory location has a setting changed by cbarn or
> hilo that then overrides the x  setting  of draw.
>
> You help to correct this problem is  much appreciated.
>
> Sincerely
>
> Mac MacLeod
>
> --
> M.A. (Mac) MacLeod
> President and General Manager
> Scotia Weather Services Inc
> 192 Wyse Road, Suite 8,
> Dartmouth, N.S. B3A 1M9
>
> Tele: 902-468-3866
> Fax:  902-461-1768
> E-mail: mmacleod at scotiaweather.com
> Visit us: www.scotiaweather.com
>
>
>
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