[gradsusr] Controling wind barb colors at high resolutions

[Jonas Kaufmann]

Hello,

I have a script that draws a wind map using gxout shaded as the base
layer and drawing wind barbs on top of that. The wind barb drawing
part looks like this:

'set ccolor 0'
'set gxout barb'
'set clevs 0 50'
'set ccols 0 0'
'set cthick 5'
'set cint 0'
'set digsiz 0.08'
'd skip(ugrd10m,2,2); vgrd10m; mag(ugrd10m, vgrd10m)'
'printim myimage.png png x1000 y723'

Now when I plot this graph in a resolution below 1000 pixels in
x-direction, everything works fine and the wind barbs are displayed in
my color scheme. However when increasing the resolution at 2000
pixels, my color scheme is ignored.

What is happening there? Is there a way to display wind barbs in
custom color schemes at high resolutions?

Thank you in advance!


Best regards,
Jonas Kaufmann