Re: [idvusers] Wind Barb Size

Hi Mike -

Good that you are picking this issue up again. I noted the same not intended behaviour already some time ago when there were even more serious problems with the wind barbs. Now that these are cured It would be nice to have the barb size settled as well. Actually I would expect that the wind barbs behave like the flow vectors!

HP

On 2011-01-23 17:42, Mike Hardiman wrote:
Hi all,

I'm fairly new to IDV, so please bear with me if this is an overly-basic
question.

When loading up a gridded dataset (in this case NARR data in grib
format), and plotting "truewindvectors" with wind barbs, the barbs are
overly-large...even when setting them to the smallest size (1).

What appears to be happening is the barb size is determined based on
being fully "zoomed out" on a particular projection. In this case, I had
chosen "North America" ... then zoomed in on the Southwestern CONUS and
Northwest Mexico.

When zooming in, rather than the wind barb plots growing denser and
maintaining their size... the barbs simply become larger on the display,
and cannot be made any smaller.

Is this the intended behavior in IDV? If so, it would be nice to have
the option of making barbs smaller.

I realize I can get smaller barbs if I choose a different projection --
such as "Southwest US" --- but then I get the outline of the 3D box
cutting up the middle of New Mexico.

Thanks for any guidance,
-Mike Hardiman

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