Hi Jaison and ferreters
I've been using the script color_vector.jnl which I found in /usr/local/ferret/contrib
! Written By : Jaison Kurian (
jaison@xxxxxxxxxxxxxxxxxx,
jaison@xxxxxxxxxxxxxx)
! Written On : Jan/04/2008 (based on a draft completed on May/28/2007)
to get a better view of the Walker Circulation. The first problem I encountered was that the script wasn't using my vec_yskip. I suspect this is because my y-axis is height in this case. I copied the original color_vector.jnl script to my run directory (called color_vector_z.jnl) and manually changed yskip=1 to yskip=2 which has worked out perfectly.
I'm not nearly a proficient enough programmer to fully understand the script but I was wondering if I could add the /flow option to the script somewhere? I included /flow in the vec_cmd definition but it didn't change the output. I find the flow line winds very useful except that I can't always see what the strength of the winds are. This colour coded vector script would be wonderful if I could apply it to the flowline option.
I'd really appreciate any help on this, even if it's just to tell me that I can't apply flow to this vector script. Many thanks!
Best,
Penny
I'm using model output and this is the plot script I'm using:
let uu = u[d=17,y=-5,l=1:3@ave]*2
let vv = omega[d=17,y=-5,l=1:3@ave]*-600
set reg/x=-180:180
define symbol vec_cmd = vector/nolab/vlimits=26:1/flow
define symbol vec_u = uu ! u var name, no [],(),*,/,+,-, ^ stuff
define symbol vec_v = vv ! v var name, no [],(),*,/,+,-, ^ stuff
define symbol vec_len = 50 ! value for /LENGTH qualifier
define symbol vec_xskip = 15 ! value for /XSKIP qualifier
define symbol vec_yskip = 4 ! value for /YSKIP qualifier
define symbol vec_arrowkey = NO ! YES or NO, for scale/key vector
define symbol vec_veckey = 325,78,,(f4.1, " m/s")! arguments to "PPL VECKEY" command
define symbol vec_lo = 0 ! low value for color levels
define symbol vec_hi = 60 ! high value for color levels
define symbol vec_delta = 2 ! delta value for color levels
define symbol vec_pal = rainbow ! palette file name
define symbol vec_colorkey = YES ! YES or NO, for color bar/key
define symbol vec_shakey = 1,1,0.12,2 ! arguments to "PPL SHAKEY" command
define symbol vec_otherppl = none !other ppl commands (should start with "ppl"),
! for example
! ppl xfor (f5.1, ''lonE'')
go color_vector_z