[ncl-talk] how to set the linewidth for windbarbs

[David Brown]

I'm not quite sure how the name came to be, but I believe the wind barb
line width is actually controlled by BLW, whose documentations states the
following:  "Sets the line width used for drawing wind barbs.". Easy to
miss because all the other wind barb specific resources start with 'W'.

It's default value is 1.0, which suggests that like most NCL line width
resources, it is actually a scaling factor, in which case 2.5 might be a
reasonable value.

VCW sets the line width for 'vectors', which have arrow heads and usually
vary in length depending on the magnitude.
 -dave




On Mon, Sep 22, 2014 at 3:52 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:

> Hi Ed,
>
> I don't know for sure, but my reading of the WMAP docs indicates the
> correct parameter might be "WBS".  And a value of 2.5 would be way too big.
> (.025 perhaps?).  In any case, you might want to check out Ch. 9 of:
>
> http://www.ncarg.ucar.edu//supplements/wmap/index.html
>
> Hope that helps...
> Rick
>
>
>
>
> On Mon, Sep 22, 2014 at 3:23 PM, Yang Yang <yang123yang at yahoo.com> wrote:
>
>>
>> Dear Sir/Madam:
>>
>> I just resumed my ncl_talk membership. I sent the question below to
>> ncl_talk but not sure if it really has been broadcasted by ncl_talk. Pardon
>> me if you receive the question twice.
>>
>> I used   wmbarb to plot windbarbs. I want to increase the linewidth of
>> the wind barbs and set
>>      wmsetp("vcw", 2.5)
>>
>> However, it does not work no matter what value I set for VCW. Can you
>> please tell me how to do this right? Thanks!
>>
>> Regards
>> Ed
>>
>>
>>
>>
>> ---------- Forwarded message ----------
>> From: Yang Yang <yang123yang at yahoo.com>
>> To: "ncl-talk at ucar.edu" <ncl-talk at ucar.edu>
>> Cc:
>> Date: Thu, 18 Sep 2014 17:58:30 -0700
>> Subject: how to set the linewidth for windbarbs
>> Dear Sir/Madam:
>>
>> I used   wmbarb to plot windbarbs. I want to increase the linewidth of
>> the wind barbs and set
>>      wmsetp("vcw", 2.5)
>>
>> However, it does not work. Can you please tell me how to do this right?
>>
>> Regards
>> Ed
>>
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