Re: Qs about add polymarker

Hi,

I have a feeling this might be due to the map projection that you're using. My guess is that it's LambertConformal?

Can you try setting mpres@mpGridAndLimbOn = True so that it draws the lat/lon grid lines. Hopefully this will help see exactly where the marker is.

--Mary

On Nov 1, 2012, at 4:38 AM, jxm delia wrote:

> Hi~
>
> I'm trying to add a polymarker at 116E,40N to the wrf_overlay plot. But the marker came out to be the wrong place It lies not at the exact 116E,40N as indicated by the axis value.(see the plot )
>
> I'm wondering why this happened. Thanks~
>
> NCL Script( in fraction):
>
> pmres=res
> pmres@gsMarkerIndex = 12
> pmres@gsMarkerColor = "red"
> pmres@gsMarkerSizeF = 0.02
> pmres@gsMarkerThicknessF=2.0
> pltres@FramePlot= False
> ; MAKE PLOTS
> plot = wrf_map_overlays(a,wks,(/contour_tc,contour_psl,vector/),pltres,mpres)
> ; plot = wrf_map_overlays(a,wks,(/contour_td,vector/),pltres,mpres)
> gsn_polymarker(wks,plot,116.,40.,pmres)
> frame(wks)
>
>
> Xiaoman Jiang
> <plt_Surface.png>_______________________________________________
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Received on Thu Nov 1 08:23:20 2012