[ferret_users] how to use ppl shakey with polygon command

[Yogesh Tiwari <yogesh.mpi@xxxxxxxxxxxxxx>]

Hi,
I am using ferret 6.07 on Linux.
when I say:
polygon  ...................
ppl shakey .................
ppl polygon
then the color bar at the plot shows numbers like 1.2E+33
BUT
when I use above polygon command without ppl shakey then my plot looks good.
Why ppl shaky gives high value numbers, whereas my variable is height in meters ?
I need to increase font size of color bar plot created from ploygon command.
my script is as:
##############
define axis/t=1:24120:1 time_grid
define grid/t=time_grid newgrid
file/var="time,yr,mo,dy,hr,min,sec,lat,lon,ht,co2obs,sigma,co2tm3"/grid=newgrid  "../axJALx.co2.ts"  !d=1
file/var="time,yr,mo,dy,hr,min,sec,lat,lon,ht,co2obs,sigma,co2tm3"/grid=newgrid  "../axBBAx.co2.ts"  !d=2
let bx={-0.3,0.3,0.3,-0.3}
let by={-0.3,-0.3,0.3,0.3}
polygon/vlimits=-40:50/hlimits=100:200/nolab/lev=(4,13,.5)  bx+lon[d=1], by+lat[d=1], ht[d=1]/1000;go land
set window/aspect=0.7
ppl shakey 1,,0.20, 4, 4, 8
ppl dfltfnt,@tr
ppl axlsze 0.20 0.26
go margins  " "  " "   2.0  2.5
ppl polygon
###########################################

Kindly help,

Yogesh