[ncl-talk] lbLabelFormat functionality request.

[Alan Brammer]

Thanks Mary,

On Tue, Jan 20, 2015 at 12:48 PM, Mary Haley <haley at ucar.edu> wrote:

> Hi Alan,
>
> This is an issue for me as well, and I was surprised to see there's no
> ticket for this. I just created one (NCL-2125).
>
> I don't think this is a bug. It's simply an oversight that we never
> created a "format" type of resource for labelbar labels.
>
> You can work around this somewhat awkwardly by:
>
>    - Creating the plot (set res at gsnDraw = False and res at gsnFrame = False)
>    - Retrieving the "cnLineLabelStrings" resource to get the formatted
>    strings
>    - Setting "res at lbLabelStrings" to this retrieved resource
>    - Recreating the plot with the newly added lbLabelStrings resource
>
> You can also set lbLabelStrings the first time you create the plot, but
> then you would have to use "sprintf" as you mentioned above.
>
> I've attached a modified version of your script that uses the method
> outlined above.
>
> --Mary
>
>
> On Tue, Jan 20, 2015 at 9:57 AM, Alan Brammer <abrammer at albany.edu> wrote:
>
>> NCLers.
>>
>> I would like to be able to format a color bar label, without using
>> sprintf.  It seems that cnLineLabelFormat
>> <https://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnLineLabelFormat>
>> claims that it should do this job but for me today it is not making any
>> difference to the label bar.
>>
>> Am I missing a step or something? cnLineLabelFormat does it's job nicely
>> on the plot, but has no impact on the labelbar.
>>
>>
>> Request:
>> Existence of an lbLabelFormat resource,  that is potentially linked to
>> cnLineLabelFormat when not defined itself.
>>
>> For now I will stick to creating my own array of labels, and pumping them
>> through sprintf.
>>
>>
>> Thanks,
>>      ~Alan.
>>
>>
>>
>> example code of cnLineLabelFormat not affecting the label bar below:
>>
>> x = fspan(-5, 5, 100)
>> data = new( (/100,100/), float)
>> do y=0, 99
>> data(y,:) = exp(( -(x^2)/4) - (((x(y))^2)))   ;; quick way of creating
>> some nice data to plot.
>> end do
>>
>> wks = gsn_open_wks("x11","")
>>
>> res = True
>> res at cnFillOn = True
>> res at cnFillMode= "RasterFill"
>> res at cnLinesOn = False
>> res at cnLineLabelsOn = True
>> res at cnLineLabelFormat = "0@;*.4f"
>> res at lbAutoManage = False
>> res at lbOrientation = "vertical"
>> plot = gsn_csm_contour(wks, data, res)
>>
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>
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