set barbopts

This command controls the appearance of the pennant flags on wind barbs. It is available starting with GrADS version 2.1.1b0.

Syntax

set barbopts opts

outline     do not fill in the pennant
filled       fill in the pennant

Usage Notes

If you are using a transparent color to draw filled barbs, you may notice a faint outline around the pennant flags; you can avoid this using color masking.

Examples

Results that look like the image below may be accomplished by drawing filled barbs underneath outlined barbs.