[ncl-talk] labelbar
Kreienkamp Frank
Frank.Kreienkamp at dwd.de
Mon Jun 3 07:19:30 MDT 2019
Hello Rick,
i have added the ncl-file. The data set is a bit bigger. Will take a time.
I want to define the ranges for each type of plot. Is done by a framework around the ncl call. For instance the decrease of frost days with a range from -135 to 0 with 9 steps (here 15). No outer Box colors. Some colors palettes go from white to a color with increasing intensity. Those color palettes include only 9 colors.
All I am looking for is a colors/label bar covering that defined range and having labels from the first to last color.
The included picture shows a result what is close to what I intent. Just the min max labeling is missing
Frank
Von: Rick Brownrigg [mailto:brownrig at ucar.edu]
Gesendet: Montag, 3. Juni 2019 14:44
An: Kreienkamp Frank
Cc: ncl-talk at ucar.edu
Betreff: Re: [ncl-talk] labelbar
Hi,
The place in the code where the warning message is issued is guarded by this conditional:
if(end_labels_on.and.end_labelbar_style.eq.get_enum_value("IncludeMinMaxLabels").and. \
(lbstrings(0).eq."".or.lbstrings(nlab-1).eq."")) then
It appears as though at least one of the end-labels is blank. Its not clear to me why, and I would need your code and datasets in order to track this down. (BTW: I a bit puzzled by the narrowing of the label range -- I might have thought widening it was in order; e.g., -135 - 15. / 0 + 15. ??)
Rick
On Mon, Jun 3, 2019 at 12:50 AM Kreienkamp Frank <Frank.Kreienkamp at dwd.de<mailto:Frank.Kreienkamp at dwd.de>> wrote:
Hello,
to solve my problem can change the Min and Max value to
Min + cnLevelSpacingF
Max – cnLevelSpacingF
and using res at cnLabelBarEndStyle = " IncludeMinMaxLabels"
unfortunately I get an warning:
(0) Warning: add_labelbar: invalid end labels, turning them off.
The colors are shown all. But no labeling at the ends. (NCL version 6.4.0)
;************************************************
; adding color definition
res at cnFillPalette = "NCL_DWD_RedYellow"
;************************************************
; adding map
res at cnFillOn = True ; color Fill
res at cnFillMode = "RasterFill" ; Raster Mode
res at cnLinesOn = False ; Turn off contour lines
res at cnLevelSelectionMode = "ManualLevels"
res at cnMinLevelValF = -135.0 + 15. ; min contour level
res at cnMaxLevelValF = 0.0 - 15. ; max contour level
res at cnLevelSpacingF = 15.0 ; contour spacing
res at cnLabelBarEndStyle = "IncludeMinMaxLabels"
;res at cnLabelBarEndStyle = "IncludeMinMaxLabels" ;"ExcludeOuterBoxes" ; no additional ColorBoxes
res at gsnAddCyclic = False ; regional data: not cyclic
;************************************************
; Plot will just be created, and not drawn yet.
plot = gsn_csm_contour_map(wks,u,res)
Frank
Von: Kreienkamp Frank [mailto:Frank.Kreienkamp at dwd.de<mailto:Frank.Kreienkamp at dwd.de>]
Gesendet: Mittwoch, 29. Mai 2019 09:15
An: Barry Lynn; Kreienkamp Frank
Cc: ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>
Betreff: AW: [ncl-talk] labelbar
Hello,
if you look at the included labelbar you can see that two colors are shown twice (position 2+3 and 7+8). The two other colors from the palette are not shown.
[cid:image002.png at 01D515F2.EC6CCD40]
Frank
Von: Barry Lynn [mailto:barry.h.lynn at gmail.com<mailto:barry.h.lynn at gmail.com>]
Gesendet: Mittwoch, 29. Mai 2019 08:25
An: Kreienkamp Frank
Cc: ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>
Betreff: Re: [ncl-talk] labelbar
Hi:
Could you please explain in greater detail what you mean by: "not all colors are shown."
Thank you,
On Wed, May 29, 2019 at 8:52 AM Kreienkamp Frank <Frank.Kreienkamp at dwd.de<mailto:Frank.Kreienkamp at dwd.de>> wrote:
Hello,
i am currently are stuck in a problem. I want to add a labelbar with 9 colors. Using the following source:
;************************************************
; adding color definition
res at cnFillPalette = "NCL_DWD_RedYellow"
;************************************************
; adding map
res at cnFillOn = True ; color Fill
res at cnLevelSelectionMode = "ManualLevels"
res at cnMinLevelValF = -135.0 ; min contour level
res at cnMaxLevelValF = 0.0 ; max contour level
res at cnLevelSpacingF = 15.0 ; contour spacing
res at cnLabelBarEndStyle = "ExcludeOuterBoxes" ; no additional ColorBoxes
the color-palette "NCL_DWD_RedYellow" has 9 colors:
ncolors= 9
# r g b
102 051 051
140 039 039
178 026 026
216 013 013
255 000 000
255 063 000
255 127 000
255 191 000
255 255 000
Unfortunately not all colors are shown.
[cid:image001.png at 01D51A1E.39F05350]
What do I have to change? I use version 6.4.0.
Thanks in advance
Frank
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