[ncl-talk] Plotting station data as contour

[MeteoBB]

Thx Rick for your quick response.

Playing a little bit with the smooth-Parameter of the cn-resources 
yields the plot attached.

*res at cnSmoothingOn        = True**
**res at cnSmoothingDistanceF = 0.005 ;(usw 0.005 ... 0.03)*

An area left is getting colored. (there is no station!)
This is risky i think, if I set the parameter (hardcoded). I never know 
what the graphics will look like.

Do you think i should try interpolate the station data from my 
unstructured grid to a rectilinear grid using *natgrid*?

MeteoBB

Am 05.02.2019 um 19:04 schrieb Rick Brownrigg:
> You might take a look at the several resources associated with 
> "*cnSmoothingOn"
> *
>
> HTH...Rick
> **
>
> On Tue, Feb 5, 2019 at 10:22 AM MeteoBB <info at meteo-bb.de 
> <mailto:info at meteo-bb.de>> wrote:
>
>     Hello,
>
>     I tried to plot station data of surface temperature on a map as a
>     contour plot. I'm not satisfied with the result (see attached
>     picture AreaFill.png).
>     It all seems so angular. My grid is not regular because of the
>     station data.
>
>     Switching from AreaFill to RasterFill results in a litte better
>     plot (smooth contours) as you can see in the picture attached
>     (RasterFill.png).
>     *res at cnFillMode = "AreaFill"
>     res at cnFillMode = "RasterFill"*
>
>     I tried to regrid the triangular mesh (unstructured) station data
>     to a structured grid using *natgrid*?
>     But it fails ...
>
>     Do you have any ideas for a better plot? Or what is the correct
>     way to plot such station data as contour?
>
>     Regards
>     MeteoBB
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