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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Mike-It's unwanted, but as HP notes, expected behavior. This is a bug so please report to support-idv@xxxxxxxxxxxxxxxx. Hopefully, they will be able to put this on a high priority as a fix (although the developers are at a conference this week). The problem is that the zoom factor is not taken into account when the barbs are first drawn. A similar problem was encountered with the point obs display, and the solution is to account for the zoom factor when calculating the scale that the user has chosen.
Don On 1/23/11 9:42 AM, 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 _______________________________________________ idvusers mailing list idvusers@xxxxxxxxxxxxxxxx For list information, to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
-- Don Murray NOAA/ESRL/PSD and CIRES 303-497-3596 http://www.esrl.noaa.gov/psd/people/don.murray/
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