Re: changing default boundary color for a map

Just FYI, we do have a ticket for adding new resources to control the county / climate division level line attributes. Hopefully, that will eliminate the need for overlays etc.
 -dave

On Apr 19, 2012, at 12:44 PM, Adam Phillips wrote:

> Hi Rob,
> Thanks for providing an easy-to-use code so I could test possible solutions. As you probably guessed, I don't believe a resource exists to do what you want. However, I was able to make the national boundaries black by manually overlaying a second plot on the first. This is done by drawing your original plot, not advancing the frame, drawing a second plot (only showing the national boundaries in black) right on top of the first one, then advancing the frame. The code is attached, along with the resulting plot. The key with doing this type of manual overlaying is to get things lined up perfectly, and in this case I didn't have to change anything.
>
> I see that you wanted to panel this. I don't see a reason why you couldn't call gsn_panel for your original plots (setting gsnFrame = False in the panel resource list), then call gsn_panel again for your set of overlaid plots that only draw the national boundaries. Then manually call frame.
>
> If this isn't what you wanted, or if you have trouble paneling the overlaid plots, let us know..
> Good luck,
> Adam
>
> On 04/17/2012 03:25 PM, Rob Nicholas wrote:
>>
>> As an added complication, the color for the county boundaries seems to be tied to national boundary color. See, for example, the following code which produces the attached plot:
>>
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>>
>> resMap= True
>> resMap@mpPerimOn = False
>> resMap@mpGridAndLimbOn = False
>> resMap@gsnTickMarksOn = False
>> resMap@mpDataSetName = "Earth..3"
>> resMap@mpDataBaseVersion = "MediumRes"
>> resMap@mpOutlineOn = True
>> resMap@mpOutlineSpecifiers = "Conterminous US : Counties"
>> resMap@mpFillAreaSpecifiers = "Conterminous US : Counties"
>> resMap@mpOutlineBoundarySets = "USStates"
>> resMap@mpFillOn = True
>> resMap@mpSpecifiedFillColors = "red"
>> resMap@mpFillAreaSpecifiers = "Pennsylvania : 05"
>> resMap@tiMainString = "PA-05: Middle Susquehanna"
>> resMap@mpOceanFillColor = "transparent"
>> resMap@mpLandFillColor = "transparent"
>> resMap@mpInlandWaterFillColor = "transparent"
>> resMap@mpUSStateLineColor = "black"
>> resMap@mpNationalLineColor = "gray"
>> resMap@mpGeophysicalLineColor = "black"
>> resMap@mpMinLatF = 24.
>> resMap@mpMaxLatF = 50.
>> resMap@mpMinLonF = -125.
>> resMap@mpMaxLonF = -65.
>>
>> wks = gsn_open_wks( "newpdf", "climdiv_map" )
>> mycolormap = (/ "white", "black", "gray", "red" /)
>> gsn_define_colormap( wks, mycolormap )
>> plot = gsn_csm_map( wks, resMap )
>>
>> This does almost exactly what I'm looking for, except that the inland boundaries with Mexico and Canada are gray rather than black.
>>
>> On Tue, Apr 17, 2012 at 10:46 AM, Rob Nicholas <rob.nicholas@psu.edu> wrote:
>>> Hi NCLers,
>>>
>>> I'm trying to produce a map similar to the ones shown in example 15 on the "Map Only Plots" page, but with one important twist: I'd like the boundaries for the climate divisions to be gray, while keeping the state, national, and coastal boundaries black.
>>>
>>> The state, national, and geophysical boundary colors can be changed explicitly via map resources, but it seems that all other boundaries (in the case of the climate divisions, they're considered "counties") are automatically drawn with the foreground color. Altering the colormap to make gray the foreground color makes things complicated because this map is part of a panel plot where the foreground color needs to remain black for the other components.
>>>
>>> Is there any way to directly alter the color in which the county (or non-state/national/geophysical) boundaries are drawn?
>>>
>>> Thanks,
>>> Rob
>>>
>>> --
>>> Robert Nicholas
>>> Postdoctoral Research Fellow
>>> Department of Geosciences, Penn State University
>>>
>>> post: 411 Deike Building, University Park, PA 16802
>>> email: rob.nicholas@psu.edu
>>> voice: +1 (814) 808-5610
>>> web: http://www.geosc.psu.edu/~ren10
>>>
>>
>>
>>
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>
> --
> ______________________________________________________________
> Adam Phillips asphilli@ucar.edu
> NCAR/Climate and Global Dynamics Division (303) 497-1726
> P.O. Box 3000
> Boulder, CO 80307-3000 http://www.cgd.ucar.edu/cas/asphilli
> <climdiv_map.pdf><test.ncl>_______________________________________________
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Received on Thu Apr 19 15:01:33 2012