Re: High/Low labels not showing for gsn_csm_contour_map_ce()

Hi Adam,

When I took off the resources cnHighLabelString/cnLowLabelString, The lows
and highs with the numbers appeared finally. However, it does not put H/L s
for every high and low. I tried increasing the value for
res@cnConpackParams= (/ "HLX:4, HLY:4" /) to a higher number for HLX
and HLY, however, it did
not change anything. So, for certain times my "low of interest" has an "L"
associeated with it, but then for certain later times there is no L within
the "low" but yet there are definitely contours around the "low". How can I
get it to put a H/L stamp for every high/low ?

I tried adding the res@cnHighLabelString = "H~B~$ZDV$~E~" and
res@cnLowLabelString = "L~B~$ZDV$~E~" resources, but I noticed that it did
not change anything, so I left those out. Also, I am not very familiar with
that syntax.

Thanks,

A.J.

On Thu, Sep 5, 2013 at 8:20 AM, Adam Phillips <asphilli@ucar.edu> wrote:

> Hi A.J.,
> You are telling NCL to not label the min/max values by setting the
> cnHighLabelString/cnLowLabelString resources = "H"/"L"..
>
> According to the documentation here:
>
> http://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnHighLabelString
>
> http://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnLowLabelString
> the defaults are:
> res@cnHighLabelString = "H~B~$ZDV$~E~"
> res@cnLowLabelString = "L~B~$ZDV$~E~"
> (note that I replaced the : with ~ as that is what most people have their
> function code set to..)
>
> Try setting the resources as I have it above and see if that works.. If
> not, please let ncl-talk know..
> Adam
>
>
> On 09/04/2013 06:04 PM, A.J. Eiserloh wrote:
>
> Thanks Adam,
>
> That worked, however, is there a way to put the minimum/maximum values
> under the L/H symbols? Right now, only the "L" for low shows up.
>
> -A.J.
>
>
> On Wed, Sep 4, 2013 at 12:36 PM, Adam Phillips <asphilli@ucar.edu> wrote:
>
>> Hi A.J.,
>> I don't see anything amiss with your script. Take a look at this ncl-talk
>> email from the archive:
>> http://www.ncl.ucar.edu/Support/talk_archives/all/0877.html
>> Specifically try setting cnConpackParams, and see if you can get the
>> labels on there.
>> If that resource doesn't help let ncl-talk know.
>> Adam
>>
>>
>> On 9/4/13 12:27 PM, A.J. Eiserloh wrote:
>>
>> Hi,
>>
>> I am trying to put high/low label marks on my contour map of 500 mb
>> geopotential height surface but for some reason it does not seem to be
>> working. Here is my script below:
>>
>> ;==============================================================
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/calendar_decode2.ncl"
>> ;==============================================================
>>
>> begin
>>
>> f = addfile("./hgt.2012.nc","r")
>>
>> ;geopotential height
>> hgt = short2flt(f->hgt) ; hgt(time,lev,lat,lon)
>> ; short2flt() function uses scale_factor and
>> add_offset attribute to convert
>> hgt = hgt/(10.0)
>> hgt@units = "dam"
>> hgt@description = "Geopotential Height"
>> time = f->time
>> ntimes=dimsizes(time)
>>
>> lat = f->lat
>> lon = f->lon
>> lev = f->level
>>
>> nlat = dimsizes(lat)
>> nlon = dimsizes(lon)
>>
>> ;convert times to dates
>> times =fspan(time@actual_range(0),time@actual_range(1),ntimes)
>> times@units= "hours since 1800-1-1 00:00:00"
>> dates = calendar_decode2(times,-3)
>>
>> print(dates)
>> ;create lat2d and lon2d arrays
>> ;lat2d = conform_dims((/nlat,nlon/),lat,0)
>> ;lon2d = conform_dims((/nlat,nlon/),lon,1)
>>
>> ;hgt@lat2d = lat2d
>> ;hgt@lon2d = lon2d
>>
>>
>> ;---------------------------------------------------------------
>> ;Plot
>> ;---------------------------------------------------------------
>>
>> ;What level do you want to plot?
>> plev = 500.
>> dateStart = ind(dates.eq."2012112800")
>> dateEnd = ind(dates.eq."2012120318")
>>
>> ;do i=0,0 ; begin plotting loop
>>
>> fname = "500mb-"+dates(1335)
>> wks = gsn_open_wks("png",fname)
>>
>> ;plot resources
>> res = True
>>
>> res@tiMainString = " NCEP Reanalysis-2"
>> res@tiMainFontAspectF = 1.4
>> res@tiMainFontThicknessF = 0.80
>> res@tiMainFontHeightF = 0.03
>>
>> res@gsnAddCyclic = False ; regional data
>> res@tfDoNDCOverlay = False
>>
>> colr="black"
>> res@mpFillOn = False
>> res@mpGeophysicalLineColor = colr ; color of
>> continental outlines
>> res@mpPerimOn = True ; draw box around
>> map
>> res@mpGridLineDashPattern = 2 ; lat/lon lines
>> as dashed
>> res@mpDataBaseVersion = "MediumRes"
>> res@mpOutlineBoundarySets = "GeophysicalAndUSStates" ; add state
>> boundaries
>> res@mpUSStateLineColor = colr
>> res@mpGeophysicalLineColor = colr
>> res@mpNationalLineColor = colr
>> res@mpUSStateLineColor = colr
>> res@mpGridLineColor = colr
>> res@mpLimbLineColor = colr
>> res@mpPerimLineColor = colr
>> res@mpGeophysicalLineThicknessF = 1.0
>> res@mpGridLineThicknessF = 1.0
>> res@mpLimbLineThicknessF = 1.0
>> res@mpNationalLineThicknessF = 1.0
>> res@mpUSStateLineThicknessF = 1.0
>>
>> res@cnLevelSpacingF = 4
>> res@cnLineLabelFontHeightF = 0.011
>>
>> res@cnHighLabelsOn = True; label highs
>> res@cnHighLabelString = "H"; highs' label
>> res@cnHighLabelFontHeightF = 0.013; larger H labels
>> ; res@cnHighLabelBackgroundColor = "Transparent"; no box
>> res@cnLowLabelsOn = True; label lows
>> res@cnLowLabelString = "L"; lows' label
>> res@cnLowLabelFontHeightF = 0.013; larger L labels
>> ; res@cnLowLabelBackgroundColor = "Transparent"; no box
>>
>> res@mpLimitMode="LatLon"
>> res@mpMinLatF = 20
>> res@mpMaxLatF = 60
>> res@mpMinLonF = -170
>> res@mpMaxLonF = -110
>>
>> res@gsnLeftStringFontHeightF=0.015
>> res@gsnRightStringFontHeightF=0.015
>> res@gsnLeftString = hgt@description+" "+flt2string(plev)+"mb " +
>> dates(1335)
>> res@gsnRightString= hgt@units
>>
>> plot = gsn_csm_contour_map_ce(wks,hgt(1335,ind(lev.eq.plev),:,:),res)
>>
>> ;end do
>>
>> end
>>
>> I've attatched an image to show what it looks like so far.
>>
>> Any help would be much appreciated.
>> Thanks,
>>
>> --
>> Arthur J. Eiserloh, Jr.
>> San Jose State University
>> Graduate Student
>> Dept. of Meteorology and Climate Science
>>
>>
>> _______________________________________________
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>>
>>
>
>
> --
> Arthur J. Eiserloh, Jr.
> San Jose State University
> Graduate Student
> Dept. of Meteorology and Climate Science
>
>
> --
> ______________________________________________________________
> Adam Phillips asphilli@ucar.edu
> NCAR/Climate and Global Dynamics Division (303) 497-1726
> P.O. Box 3000
> Boulder, CO 80307-3000 http://www.cgd.ucar.edu/cas/asphilli
>
>

-- 
Arthur J. Eiserloh, Jr.
San Jose State University
Graduate Student
Dept. of Meteorology and Climate Science

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Received on Thu Sep 5 12:02:43 2013