[ncl-talk] Problem using 'overlay' procedure

[Anne]

Thanks, Rick, I will try what you suggested. To point 1, trying to get dots
instead of lines (for significance), those are the resources I used:

; ** PLOT 2 ***
  res2 = True                            ; res2 probability plots
  res2 at gsnDraw             = False       ; Do not draw plot
  res2 at gsnFrame            = False       ; Do not advance frame

  res2 at cnLevelSelectionMode   =  "ManualLevels" ; set manual contour levels
  res2 at cnMinLevelValF      = 90        ; set min contour level
  res2 at cnMaxLevelValF      = 100        ; set max contour level
  res2 at cnLevelSpacingF     = 0.1        ; set contour spacing

  res2 at cnMonoFillPattern = True
  res2 at cnFillPattern     =  17
  res2 at cnFillDotSizeF      = 0.5

  res2 at cnInfoLabelOn       = False       ; turn off info label
  res2 at cnLinesOn           = False       ; do not draw contour lines
  res2 at cnLineLabelsOn      = False       ; do not draw contour labels
  res2 at gsnLeftString       =  ""
  res2 at gsnRightString      =  ""

  res2 at gsnMaximize        =    True         ; enlarge plot
  res2 at gsnAddCyclic       =   True

  plot_stat   = gsn_csm_contour(wks, aveX, res2)    ; aveX = 95% stat sign.
  overlay (plot_a, plot_stat)

 draw(plot_a)
 frame(wks)

*where*
plot_a = gsn_csm_contour_map (wks, var_diff(0,:,:), res)

*So I used*
 res2 at cnMonoFillPattern = True
  res2 at cnFillPattern     =  17

to get the dots instead of lines. But this did not work and I still see
lines instead of dots.

Any hint welcome,
thanks,
Anne


On Sat, Jan 12, 2019 at 9:06 PM Rick Brownrigg <brownrig at ucar.edu> wrote:

> Hi,
>
> In answer to your second question, regarding the paneling of overlay
> plots, it *may* be the case that you have to draw that "plot_stat" for each
> overlay. There's wording to this effect in the docs:
>
> "Once you overlay *transform_id* plot, you can no longer draw it
> separately. You can only draw the *base_id* plot, which causes the base
> plot to be drawn along with all the plots that have been overlaid on it."
>
> which suggests to me that you can't reuse plot_stat for the second
> overlay.  I don't know this for certain -- it is speculation and perhaps
> something to try out.
>
> Its hard to say about your first question -- in what sense does it not
> work?  We don't see all the resources you used -- is it the case you have:
>
>   res at gsnDraw             = False       ; Do not draw plot
>   res at gsnFrame            = False       ; Do not advance frame
>
> for the first plot (plot_a)?
>
> Rick
>
> On Sat, Jan 12, 2019 at 12:27 PM Anne <anne.seidenglanz at unive.it> wrote:
>
>> Hi everyone,
>>
>> basically, I am coming with 2 issues here:
>>
>> 1) I am trying to stipple the 95% statistical significance, for this
>> purpose I have set 2 resource lists: one for the base contours, and one for
>> the stat. significance contours on top. For the resource list on top, I
>> have set
>>
>>   res2 at cnMonoFillPattern = True
>>   res2 at cnFillPattern     =  17
>>
>> to get the dots instead of lines. Somehow that change didn't work. Did I
>> miss something?
>>
>> 2) How do I panel plots that are produced using the 'overlay' procedure?
>> I have tried using
>>
>> plot(0) = overlay(plot1, plot_stat)
>> plot(1) = oberlay(plot2, plot_stat)
>>
>> etc. but that gave me an error message.
>>
>> Thanks for any help and sorry if I had missed these issues in earlier
>> conversations.
>> Anne
>>
>> - - - - - - - - - - - - - - - - - - - - - - - - - -
>> For point 1), here are my resources:
>>
>> ; ** PLOT1 **
>> ... res1 resources, filled contours, all good....
>>
>>      plot_a = gsn_csm_contour_map (wks, var_diff(0,:,:), res)
>>
>>  ; ** PLOT 2 ***
>>   res2 = True                            ; res2 probability plots
>>   res2 at gsnDraw             = False       ; Do not draw plot
>>   res2 at gsnFrame            = False       ; Do not advance frame
>>
>>   res2 at cnLevelSelectionMode = "ManualLevels" ; set manual contour levels
>>   res2 at cnMinLevelValF      = 90        ; set min contour level
>>   res2 at cnMaxLevelValF      = 100        ; set max contour level
>>   res2 at cnLevelSpacingF     = 0.1        ; set contour spacing
>>
>>   res2 at cnMonoFillPattern = True
>>   res2 at cnFillPattern     =  17
>>   res2 at cnFillDotSizeF      = 0.5
>>
>>   res2 at cnInfoLabelOn       = False       ; turn off info label
>>   res2 at cnLinesOn           = False       ; do not draw contour lines
>>   res2 at cnLineLabelsOn      = False       ; do not draw contour labels
>>   res2 at gsnLeftString       =  ""
>>   res2 at gsnRightString      =  ""
>>
>>   res2 at gsnMaximize        =    True         ; enlarge plot
>>   res2 at gsnAddCyclic       =   True
>>
>>   plot_stat   = gsn_csm_contour(wks, aveX, res2)    ; aveX = 95% stat
>> sign.
>>   overlay (plot_a, plot_stat)
>>
>>  draw(plot_a)
>>  frame(wks)
>>
>>
>> Nota automatica aggiunta dal sistema di posta.
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>

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