Re: Change line size in fill pattern

Hi Oli,
Unfortunately, the only fill pattern that allows any control over the size of the elements making up the fill is pattern 17, the stipple dot fill pattern. For this pattern, there is a scalar contouring resource 'cnFillDotSizeF' that sets the size of the dots (it is not currently possible to have varying dot sizes for different fill areas). As of now, the only way to control the density of the line-derived patterns is to set the Fill Scale, which evidently you do not want.
We can look into adding new resources to allow control of the thickness of the lines in the patterns. However, it may be awhile because it looks like it would require new low level code, and to be honest I believe this is the first request we have had for this feature. It would be easier to add an array resource to allow control by contour level of the dot size for pattern 17.
 -dave

On Sep 24, 2013, at 1:36 PM, "Oliver Fuhrer (MeteoSwiss)" <oliver.fuhrer@ginko.ch> wrote:

> Hi Rick,
>
> Sorry, the cnFillLineSizeF was just a leftover from me trying to get the lines to be thicker. The resource has no effect but is just producing a warning.
>
> Actually, I would like to increase the starkness of the black lines, by increasing their thickness. The idea would be, that the ratio between line-covered and line-free area would be roughly 1:1 in the plot I attached in the last email.
>
> Is it possible to control the thickness of the lines in a fill pattern? Or is it possble to create new fill patterns?
>
> Cheers,
> Oli
>
> On 24.09.2013, at 17:22, Rick Brownrigg <brownrig@ucar.edu> wrote:
>
>> Hi Oliver,
>>
>> I'm not seeing that a cnFillLineSizeF resource exists in the docs (an omission?). Are you getting an error regarding that resource, or is it otherwise having no effect?
>>
>> If yopu are trying to reduce the starkness of the black lines, one possible solution (untested) is to apply some transparency to it:
>>
>> res@cnFillColor = (/ 0., 0., 0., .75 /)
>>
>> for example.
>>
>> Rick
>>
>> On Sep 24, 2013, at 9:10 AM, "Oliver Fuhrer (MeteoSwiss)" <oliver.fuhrer@ginko.ch> wrote:
>>
>>> Hi NCL team,
>>>
>>> I'd have the following plot...
>>>
>>> <PastedGraphic-1.png>
>>>
>>> ...and would like to change the line size in the fill pattern (changing the ratio of black to transparent, not just uniform scaling of the pattern).
>>>
>>> I'm using the following code to generate the fill...
>>>
>>> res@cnMonoFillPattern = False ; want multiple patterns
>>> res@cnMonoFillScale = True ; want patterns w/ diff densities
>>> res@cnFillLineSizeF = 5.0
>>> res@cnFillPatterns = (/ -1, -1, 3/) ; 3=slant lines
>>>
>>> Any help is appreciated!
>>>
>>> Thanks and kind regards,
>>> Oli
>>>
>>> _________
>>>
>>> Oliver Fuhrer
>>> Numerical Models
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>
> _________
>
> Oliver Fuhrer
> Numerical Models
>
> Federal Departement of Home Affairs FDHA
> Federal Office of Meteorology and Climatology MeteoSwiss
>
> Kraehbuehlstrasse 58, P.O. Box 514, CH-8044 Zurich, Switzerland
>
> Tel. +41 44 256 93 59
> Fax +41 44 256 92 78
> oliver.fuhrer@meteoswiss.ch
> www.meteoswiss.ch - First-hand information
>
>
>
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Received on Tue Sep 24 14:39:38 2013