[ncl-talk] CellFill issue: How to disable all fine white lines around each grid cell in ncl-PDF-output (example screenshot attached)
Carl Schreck
cjschrec at ncsu.edu
Wed Dec 14 10:40:34 MST 2016
So yes, my script was converting an EPS to png. Curiously, the EPS from the
original script is larger and has lines, but if I make white_lines.ncl
create an eps instead, then it's smaller and doesn't have lines. I believe
this ftp should have most of what you need to take a look at it:
ftp://filsrv.cicsnc.org/carl/examples/white_lines/
On Sun, Dec 11, 2016 at 11:15 PM, Mary Haley <haley at ucar.edu> wrote:
> I couldn't reproduce the problem with your attached files.
>
> First, I don't have the colorbrewer_coldhot color table, so I used a close
> one, hotcold_18lev.
>
> I created a 2500x2500 PNG image, which I've attached here. I don't see the
> same grid lines that you do, and the map outlines aren't nearly as
> prominent.
>
> This makes me think that you might have a ~/.hluresfile where you are
> setting some resources, like line thicknesses. Can you check if you have
> such a file, and if so, let me know what's in it?
>
> Also, what file are you sending the graphics to, and are you doing any
> kind of post processing on this file?
>
> Did you run the white_lines.ncl script yourself? I'm curious if the PNG
> image you sent me is from that, or from your original script.
>
> --Mary
>
>
> On Fri, Dec 9, 2016 at 1:00 PM, Carl Schreck <cjschrec at ncsu.edu> wrote:
>
>> So it didn't make a difference in my case. I still get the lines. Here
>> are my debug files.
>>
>> Thanks!
>> Carl
>>
>>
>> On Wed, Dec 7, 2016 at 8:57 AM, Carl Schreck <cjschrec at ncsu.edu> wrote:
>>
>>> This is an issue I've had in the past too. Erik, did the resources Mary
>>> suggested fix it? If so, I'll start using them too. Thanks!
>>>
>>> Carl
>>>
>>> On Mon, Nov 28, 2016 at 11:36 AM, Mary Haley <haley at ucar.edu> wrote:
>>>
>>>> Erik,
>>>>
>>>> Thanks for providing a sample image.
>>>>
>>>> I'm not an expert on how cell fill works, but did you try *not* setting
>>>> cnCellFillEdgeColor or cnCellFillMissingValEdgeColor at all?
>>>>
>>>> I just tried to reproduce your problem by taking the example
>>>> dataonmap_11.ncl at:
>>>>
>>>> http://www.ncl.ucar.edu/Applications/plot_data_on_map.shtml#ex11
>>>>
>>>> and adding your two resource settings to it:
>>>>
>>>> res at cnCellFillEdgeColor=-1
>>>> res at cnCellFillMissingValEdgeColor=-1
>>>>
>>>> I also modified the plot to zoom in on an area. I couldn't get the
>>>> behavior that you're seeing. I've attached the script, PNG, and data file
>>>> if you want to try it yourself.
>>>>
>>>> It would help if you could provide your script and data. If you have a
>>>> big data file with lots of variables, then you can try setting the special
>>>> resource:
>>>>
>>>> varR at gsnDebugWriteFileName = "mary_cell_fill_issue"
>>>>
>>>> and then re-running the script. This should cause a NetCDF file called "
>>>> mary_cell_fill_issue.nc" to be created, with just the data required by
>>>> the script. It should also create a "mary_cell_fill_issue.ncl" script that
>>>> you can send me, that will hopefully be pared down version of your script
>>>> that is just the graphics, and none of the data processing.
>>>>
>>>> --Mary
>>>>
>>>>
>>>> On Sun, Nov 20, 2016 at 5:49 PM, Erik Jan Schaffernicht <
>>>> eschaffe at uni-koeln.de> wrote:
>>>>
>>>>> I attached a clearer example screenshot as some of the fine line were
>>>>> not visible in my first attachment (mail before).
>>>>>
>>>>>
>>>>> Attached, you find a screenshot of a plot produced by ncl 6.3.0
>>>>> (Ubuntu 16.04.01) .
>>>>>
>>>>> There are hundreds of very fine, rectangularly-spaced, vertical and
>>>>> horizontal white lines, likely exactly marking the boundaries of each grid
>>>>> cell of my input field (a netcdf file).
>>>>>
>>>>> How can I disable these fine white lines?
>>>>>
>>>>> They appear when I use "CellFill".
>>>>>
>>>>> Currently, I create "PDF" output with NCL. I also tried "PS", same
>>>>> problem here.
>>>>>
>>>>> Here is an extraction of the ressources I use in my ncl plot script:
>>>>>
>>>>> varR at cnFillOn = T ;
>>>>> varR at cnFillOpacityF=1
>>>>> varR at cnFillMode="CellFill"
>>>>> varR at cnCellFillEdgeColor=-1
>>>>> varR at cnCellFillMissingValEdgeColor=-1
>>>>>
>>>>> By the way, I figured out that, if I set the @cnCellFillEdgeColor=
>>>>> to a value of 0 or 1, all these lines become really thick and eg. of
>>>>> bold white or black color. This is not what I want but maybe these
>>>>> ressources are somehow linked to my problem/solution?
>>>>>
>>>>> I like to let all cell-edge-lines disappear in my plot, so if I set
>>>>> this option to @cnCellFillEdgeColor=-1
>>>>> but the lines are still there (attached), they do not disappear.
>>>>>
>>>>> Any idea/help on that?
>>>>>
>>>>> Erik
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>
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>>>
>>>
>>> --
>>>
>>>
>>> <https://ncics.org/>
>>> * Cyclone <http://www.cyclonecenter.org/>*Center.org
>>> <http://www.cyclonecenter.org/> *Carl J. Schreck III, PhD*
>>> *Research Scholar / Research **Assistant Professor*
>>> Cooperative Institute for Climate and Satellites NC (CICS
>>> <http://www.cicsnc.org/>*-NC) <http://www.cicsnc.org/> /*
>>> Department of Marine, Earth, and Atmospheric Sciences (MEAS)
>>> <https://meas.sciences.ncsu.edu/>
>>> North Carolina State University <http://ncsu.edu/>
>>> NOAA National Centers for Environmental Information (NCEI)
>>> <http://ncei.noaa.gov/>
>>> 151 Patton Ave, Asheville, NC 28801
>>> e: carl_schreck at ncsu.edu
>>> o: +1 828 257 3140
>>> c: +1 828 484 1702
>>> Publications
>>> <http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
>>> ncics.org/mjo
>>>
>>
>>
>>
>> --
>>
>>
>> <https://ncics.org/>
>> * Cyclone <http://www.cyclonecenter.org/>*Center.org
>> <http://www.cyclonecenter.org/> *Carl J. Schreck III, PhD*
>> *Research Scholar / Research **Assistant Professor*
>> Cooperative Institute for Climate and Satellites NC (CICS
>> <http://www.cicsnc.org/>*-NC) <http://www.cicsnc.org/> /*
>> Department of Marine, Earth, and Atmospheric Sciences (MEAS)
>> <https://meas.sciences.ncsu.edu/>
>> North Carolina State University <http://ncsu.edu/>
>> NOAA National Centers for Environmental Information (NCEI)
>> <http://ncei.noaa.gov/>
>> 151 Patton Ave, Asheville, NC 28801
>> e: carl_schreck at ncsu.edu
>> o: +1 828 257 3140
>> c: +1 828 484 1702
>> Publications
>> <http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
>> ncics.org/mjo
>>
>
>
--
<https://ncics.org/>
* Cyclone <http://www.cyclonecenter.org/>*Center.org
<http://www.cyclonecenter.org/> *Carl J. Schreck III, PhD*
*Research Scholar / Research **Assistant Professor*
Cooperative Institute for Climate and Satellites NC (CICS
<http://www.cicsnc.org/>*-NC) <http://www.cicsnc.org/> /*
Department of Marine, Earth, and Atmospheric Sciences (MEAS)
<https://meas.sciences.ncsu.edu/>
North Carolina State University <http://ncsu.edu/>
NOAA National Centers for Environmental Information (NCEI)
<http://ncei.noaa.gov/>
151 Patton Ave, Asheville, NC 28801
e: carl_schreck at ncsu.edu
o: +1 828 257 3140
c: +1 828 484 1702
Publications
<http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
ncics.org/mjo
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