[ncl-talk] 2nd label of a color bar
Kreienkamp Frank
Frank.Kreienkamp at dwd.de
Wed Dec 4 03:58:44 MST 2019
Hello,
yes your idea solved my problem (see attached plot)
Thanks
Frank
-----Ursprüngliche Nachricht-----
Von: Adam Phillips <asphilli at ucar.edu>
Gesendet: Montag, 2. Dezember 2019 22:44
An: Kreienkamp Frank <Frank.Kreienkamp at dwd.de>
Cc: ncl-talk at ucar.edu
Betreff: Re: [ncl-talk] 2nd label of a color bar
Hi Frank,
If you are asking for a second line of labels underneath a common labelbar, the answer is no a function does not exist, but you can draw a labelbar twice using gsn_labelbar_ndc <https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_labelbar_ndc.shtml> , moving the labels for the second labelbar downwards. Here is a snippet of code that I have used for this:
lbres = True ; labelbar only resources
lbres at vpWidthF = 0.6 ; labelbar width
lbres at vpHeightF = 0.06 ; labelbar height
lbres at lbFillColors = res at cnFillPalette ; labelbar colors
lbres at lbOrientation = "Horizontal" ; Default is vertical.
lbres at lbLabelAlignment = "InteriorEdges" ; Default is "BoxCenters".
lbres at lbMonoFillPattern = True ; Solid fill pattern
lbres at lbLabelFontHeightF = 0.016 ; font height. default is small
lbres at lbBoxLineColor = "gray70"
gsn_labelbar_ndc(wks,dimsizes(res at cnLevels)+1,res at cnLevels,0.205,0.19,lbres)
lbres at lbLabelOffsetF = .5
gsn_labelbar_ndc(wks,dimsizes(res at cnLevels)+1,RoundPastDecimal(sqrt(8./res at cnLevels),2),0.205,0.17585,lbres)
frame(wks)
Note that in the two gsn_labelbar_ndc calls, the NDC X value is the same (.205), but the NDC y-value is adjusted so that the labelbars themselves are exactly overlaid.
Adam
On Mon, Dec 2, 2019 at 2:01 AM Kreienkamp Frank via ncl-talk <ncl-talk at ucar.edu <mailto:ncl-talk at ucar.edu> > wrote:
Hello,
is there a function to add a 2nd label line to a colorbar?
As an exemple: The plot shows the temperature increase compared to a given time period. The values on each side of the color bar show different time slice (preindustrial and last 30 years)
Thanks in advance
Frank
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Adam Phillips
Associate Scientist, Climate and Global Dynamics Laboratory, NCAR
www.cgd.ucar.edu/staff/asphilli/ <http://www.cgd.ucar.edu/staff/asphilli/> 303-497-1726
<http://www.cgd.ucar.edu/staff/asphilli>
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