[ncl-talk] Skew T wind barbs

[Dennis Shea]

Hi Kacie

I've added an attribute for the 'dataOpts' argument.
This will be in the 6.4.0

*skewt_func.ncl*dataOpts at DrawWindBarbThk = 2.0    ; default value is 1.0

See Example 2 at:

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


The rightmost figure shows a (slightly) thicker wind barbs.
Set as you see fit.

Regards, D

On Wed, Jun 15, 2016 at 3:41 PM, Mary Haley <haley at ucar.edu> wrote:

> Hi Kacie,
>
> I don't know much about the skewT code, but the wind barbs are being drawn
> with a call to "wmbarb". The wmbarb documentation:
>
> http://www.ncl.ucar.edu/Document/Functions/Built-in/wmbarb.shtml
>
> fails to mention the parameter "BLW", which increases line thickness (I'll
> fix the documentation shortly).
>
> Try adding this call:
>
> wmsetp("BLW",3.0)    ;  Default is 1.0
>
> I tried a value of 3.0 on a test code, and this was definitely thicker You
> might need to go higher.
>
> --Mary
>
>
> On Wed, Jun 15, 2016 at 10:56 AM, Kacie Shourd <Kacie.Shourd at dri.edu>
> wrote:
>
>> Hi, NCL-talk!
>>
>>
>>
>> Is there a way to make the wind barbs in a given plot (specifically in
>> the Skew T plot) thicker for easier visibility in a publication-sized image?
>>
>>
>>
>> I have tried the following, based on what I’ve found online, but nothing
>> seems to work:
>>
>>
>>
>>       dataOpts at vcWindBarbLineThicknessF= 4.0
>>
>>       dataOpts at WindBarbLineThicknessF = 4.0
>>
>>
>>
>> I have also attempted to muck with this bit of code in the skew t
>> background:
>>
>>       gsOpts = True
>>
>>       gsOpts at gsLineColor       = "Foreground"
>>
>>       gsOpts at gsLineThicknessF  = 1.5
>>
>>       gsOpts at gsLineDashPattern = 0
>>
>>       gsOpts at gsMarkerIndex     = 4   ; "hollow_circle"=> std pres
>>
>>       gsOpts at gsMarkerColor     = "Foreground"
>>
>>
>>
>> and
>>
>>       gsOpts at gsMarkerIndex     = 16     ; "circle_filled" -> Pibal
>>
>>       gsOpts at gsMarkerSizeF     = 0.007 ; 0.007 is default
>>
>>       gsOpts at gsMarkerThicknessF= 1.0    ; 1.0 is default
>>
>>
>>
>> but the markers referred to are the circles along at P & h levels along
>> the y-axis. The line referred to is the axis itself.
>>
>>
>>
>> I can edit the thickness of every other line and marker I need, with the
>> exception of the wind barb.
>>
>>
>>
>> In some of the supplemental Fortran documentation (
>> http://www.ncarg.ucar.edu//supplements/wmap/index.html#HEADING1-139
>> <http://www.ncarg.ucar.edu/supplements/wmap/index.html#HEADING1-139> )
>> there is this from WMAP:
>>
>>
>>
>> *“WBS specifies the size of the wind barb shaft; WBT specifies the length
>> of a wind barb full tick mark; BLW specifies the line width scale factor to
>> use in drawing wind barb lines.”*
>>
>>
>>
>> Is there any way to access this functionality in NCL?
>>
>> Attached are my script, an updated skewT background script, and the
>> current image output.
>>
>>
>>
>> Thanks in advance,
>>
>> Kacie
>>
>> ---
>>
>> Kacie N. Shourd
>>
>> 드림
>>
>>
>>
>> Graduate Research Assistant
>>
>> Desert Research Institute
>>
>> Kacie.Shourd at dri.edu
>>
>> Work: (775) 674-7049
>>
>>
>>
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