Re: overlay problem

I noticed you have:

> plot1 = gsn_csm_contour(wks,gsn_add_cyclic_point(tail_prob), res1)

It is better to handle the cyclic point via the "gsnAddCyclic" resource:

   res1@gsnAddCyclic = True
   plot1 = gsn_csm_contour(wks,tail_prob, res1)

You may also need to comment out:

> ; res1@tfDoNDCOverlay = True

Does "tail_prob" contain any coordinate information?

   printVarSummary(tail_prob)

This could be the source of your problem if it doesn't.

--Mary

On Jan 9, 2012, at 7:22 AM, Cheung wrote:

> Dear all:
>
> I wanna plot a kind of figs like contour on contour, example 4, but for a regional domain.
>
> And I find I can not overlay my significant level dots plots onto the base map(like fig1), but if I set "res1@tfDoNDCOverlay = True", it's
>
> ok, but the edge of my plot lose some dots which definitely should be there(see fig2 right edge of my plot, a space which should not appear, I've
>
> checked the data).
>
> So does anyone know how to solve this ?
>
> Thanks a lot!
>
>
> And below is my ncl resources:
>
> res &nb sp; = True
> res@gsnSpreadColors = True
> res@gsnSpreadColorStart = 18
> res@gsnSpreadColorEnd = 2
> res@gsnDraw = False
> res@gsnFrame = False
> res@gsnAddCyclic = False
> res@mpFillOn = False
> res@mpLimitMode = "Corners"
> res@mpLeftCornerLatF = 10.
> &n bsp; res@mpRightCornerLatF = 45.
> res@mpLeftCornerLonF = 90.
> res@mpRightCornerLonF = 125.
> res@cnFillOn = True
> res@cnLinesOn = False
> res@cnLineLabelsOn = False
> res@cnLevelSelectionMode = "ManualLevels"
> res@cnLevelSpacingF = 1.
> res@cnMinLevelValF = -5.
> res@cnMaxLevelValF = 5.
> < div> res@gsnLeftString = ""
> res@gsnCenterString = ""
> plot = gsn_csm_contour_map(wks,below_avg(:,:),res)
>
> res1 = True
> res1@gsnDraw = False
> res1@gsnFrame = False
> ; res1@tfDoNDCOverlay = True
> res1@gsnAddCyclic = False
> res1@cnLevelSelection Mode = "ManualLevels" ; set manual contour levels
> res1@cnMinLevelValF = 0.00 ; set min contour level
> res1@cnMaxLevelValF = 1.05 ; set max contour level
> res1@cnLevelSpacingF = 0.01 ; set contour spacing
> res1@cnInfoLabelOn = False ; turn off info label
> res1@cnLinesOn = False ; do not draw contour lines
> res1@cnLineLabelsOn = False &nb sp; ; do not draw contour labels
> res1@cnFillScaleF = 0.6 ; add extra density
> res1@tiXAxisString = ""
> res1@tiYAxisString = ""
> plot1 = gsn_csm_contour(wks,gsn_add_cyclic_point(tail_prob), res1)
> plot1 = ShadeLtContour(plot1, 0.02, 17) ; shade all areas less than the
> overlay(plot, plot1)
> draw(plot)
> frame(wks)
>
>
>
> <fig1.tiff><fig2.tiff>_______________________________________________
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Received on Mon Jan 9 07:49:20 2012