>
> Hi, this may have come up already, but we're having trouble, short of
> hard coding the values, how does one set the color bar numbers to
> scientific and or say xx.xx (2 decimal places)? We've figured out
> how to int them and are dynamically assigning values. but we can't
> figure out how to limit the decimal places or how to do scientific:
> res .CnMaxDataValueFormat = ".1f" does nothing. thanks, pb
> --
>
You might try using "lbLabelStrings" and formatting it as desired
using "sprintf". You will need to get the latest gsn_code.ncl and
gsn_csm.ncl (I modified them today) in order for this to work:
http://ngwww.ucar.edu/ngdoc/ng/ug/ncl/gsun/scripts/gsn_code.ncl
http://ngwww.ucar.edu/ngdoc/ng/ug/ncl/gsun/scripts/gsn_csm.ncl
Sprintf works much like the C version of "sprintf". That is, if you
want 2 values plotted after the decimal place, and you have a total of
5 characters that you want in your numbers (you must include a count
for the decimal place), then you use "5.2f". Below is an example.
For more information on sprintf, go to:
http://ngwww.ucar.edu/ngdoc/ng/ref/ncl/functions/sprintf.html
Note: in the example below, I'm assuming you don't know your contour
levels beforehand, so I'm retrieving them with the "cnLevels" resource
and then recreating the plot with "lbLabelStrings" set.
--Mary
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
begin
wks = gsn_open_wks("x11","test")
file1 = addfile(ncargpath("data") + "/cdf/cn10n.cdf","r")
cnres = True
cnres@cnFillOn = True
cnres@lbLabelFontHeightF = 0.015
cnres@cnLevelSelectionMode = "ManualLevels"
cnres@cnMinLevelValF = 4.15
cnres@cnMaxLevelValF = 44.15
cnres@cnLevelSpacingF = 4
contour = gsn_csm_contour(wks,file1->mound,cnres)
;
; Retrieve contour levels.
;
getvalues contour
"cnLevels" : levels
end getvalues
cnres@lbLabelStrings = sprintf("%4.1f",levels) ; Format the labels
contour = gsn_csm_contour(wks,file1->mound,cnres)
end
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