Hi Nikola,
Map tickmarks are not easy to customize in NCL, unless you have a cylindrical equidistant map.
Since you have a Lambert Conformal Projection, see the first frame of example "mptick_9.ncl" at:
http://www.ncl.ucar.edu/Applications/mptick.shtml
This example has an "add_map_tickmarks" function that allows you to customize your axes for a rectangular map projection.
Since you are using wrf_map_overlays, which removes the overlaid plots after it is done, you will have to "trick" it into not doing this by setting the special "PanelPlot" resource to True.
For example:
pltres = True
pltres@PanelPlot = True
mpres = True
map = wrf_map_overlays(a,wks,(/contour_tc,contour_psl,vector/),pltres,mpres)
Now, you can take this "map" id and pass it to "add_map_tickmarks" to apply the tmXBValues and tmXBLabels that you want:
mpres@tmXBValues = …your array of tickmark values...
mpres@tmXBLabels =…your array of tickmark labels…
mpres@tmXBLabelFontHeightF = 0.015 ; if desired
map = add_map_tickmarks(wks,map,mpres)
draw(map)
frame(wks)
If you are successful with this, then it would make a great example for this page, since we don't have any that show how to do this with WRF data and/or labels of "km".
Let me know if you can contribute it, and I'll write up the explanation. I will need the full script (cleaned up if possible) and a PS file.
Thanks,
--Mary
On Feb 25, 2013, at 6:44 PM, Nikola Marjanovic wrote:
>
> I can't seem to explicitly label the X and Y axes of my figure created using wrf_map_overlays. The figure is created with latitude and longitude labels. I would like to change these to distance labels (km). However when I try to use setvalues to change tmXBValues and tmXBLabels, they are not considered valid resources. Which resources hold the latitude and longitude values I would like to change? My map projection is Lambert Conformal.
>
> Any help would be appreciated.
>
> Thanks,
> Nikola
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Received on Tue Feb 26 08:40:11 2013
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