All,
I have a meteogram that shows a vertical slice along a path with respect to
time. I am trying to add the ground level to the meteogram. My first
attempt was to overlay a bar chart on the meteogram and this almost works.
The problem I am having is the bars are not filled in. I get a great
outline but I need to have the bars filled in. If I use the same code but
do not overlay the bar chart but just draw it then I get the bars colored
but the scales are different...I can fix this but it is a lot of extra stuff
to ad to the res. I am just trying to keep it as simple as possible.
Note...The terrain bars are visible as red outlined bars (on attached
image). Also the terrain is a test array at this point so it has no
relation to the rest of the image including the map.
Below is, I think, the relevant NCL code chunks.
Any ideas? Thanks,
John Ertl
rh_res = True
temp_res = True
uv_res = True
rain_res = True
tempsfc_res = True
ground_res = True
;
; Here are the resources that rh_res, temp_res, and uv_res share.
;
rh_res@trYReverse = True ; Reverse the Y values.
rh_res@gsnDraw = False ; Don't draw individual plot.
rh_res@gsnFrame = False ; Don't advance frame.
; rh_res@gsnMaximize = True ; Maximize plot in frame.
rh_res@vpXF = 0.15 ; x location
rh_res@vpYF = 0.76 ; y location
rh_res@vpWidthF = 0.7 ; width
rh_res@vpHeightF = 0.44 ; height
rh_res@cnInfoLabelOn = False ; turn off cn info label
temp_res = rh_res
uv_res = rh_res
ground_res = rh_res
; ---------------------- Relative humidity resources
rh_res@sfXArray = taus ; Define X/Y axes values that
rh_res@sfYArray = levels ; all three data fields are on
rh_res@tiYAxisString = "Pressure (mb)" ; Y axes label.
; rh_res@gsnYAxisIrregular2Log = True ; added for log
rh_res@tmYLMode = "Explicit" ; Define own tick mark labels.
rh_res@tmYLLabelFont = 25 ; Change the font.
rh_res@tmYLValues = levels
rh_res@tmYLLabels = levels
; rh_res@tmYLLabels =
(/"1000","975","950","925","850","800","700","600","500","400"/)
rh_res@tmYLMinorOn = False ; No minor tick marks.
; ----------------------
; rh_res@tiXAxisString = "Forecast hour" ; X axes label.
; rh_res@tmXBLabelsOn = True ; have tick mark labels
rh_res@tiXAxisString = "" ; X axes label.
rh_res@tmXBMode = "Explicit" ; Define own tick mark labels.
rh_res@tmXBLabelFont = 25 ; Change the font.
rh_res@tmXBValues = taus
rh_res@tmXBLabelFontHeightF = .016 ; Font size
rh_res@tmXBLabels =
(/"Sep21","12z","Sep22","12z","Sep23","12z","Sep24"/) ; insert a list
rh_res@tmXBLabelAngleF = 90. ; change label angle
rh_res@tmXBMinorOn = False ; No minor tick marks.
rh_res@tmXUseBottom = False ; Keep top axis independent of bottom.
rh_res@tmXTLabelsOn = True ; have tick mark labels
rh_res@tmXTOn = True ; have tick marks
rh_res@tmXTMode = "Explicit" ; Define own tick mark labels.
rh_res@tmXTLabelFont = 25 ; Change the font.
rh_res@tmXTValues = taus
rh_res@tmXTLabelFontHeightF = .016 ; Font size
rh_res@tmXTLabels =
(/"37.0:-122.0","35.0:-125.0","31.0:-130.0","28.0:-141.0","25.0:-150.0","23.
0:-153.0","21.0:-158.0"/) ; insert a list
rh_res@tmXTLabelAngleF = 65. ; change label angle
rh_res@tmXTMinorOn = False ; No minor tick marks.
; -----------------------
rh_res@gsnSpreadColors = True
rh_res@gsnSpreadColorEnd = 11 ; only use the first 12 colors (count starts
at 0)
; for the color fill of RH
rh_res@cnFillOn = True ; turns on color fill
rh_res@cnLineLabelsOn = True ; no contour labels
rh_res@tiMainString = "Meteogram for Mission Test, 21/00Z"
rh_res@cnFillOn = True ; turns on the color
; ---------------------- temperature resources
temp_res@sfXArray = taus ; Define X/Y axes values that
temp_res@sfYArray = levels ; all three data fields are on
temp_res@vcRefAnnoOn = False ; turns off the ref box
temp_res@cnLevelSpacingF = 10. ; contour spacing
temp_res@cnLineLabelsOn = True ; no contour labels
temp_res@cnLineThicknessF= 3.0 ; line thickness
temp_res@cnLineColor = "Red"
temp_res@cnMonoLineLabelFontColor = True
temp_res@cnLineLabelFontColor = "Red"
; ---------------------- wind barbs resources
uv_res@vfXArray = taus ; Define X/Y axes values that
uv_res@vfYArray = levels ; all three data fields are on
uv_res@vcRefAnnoOn = False ; turns off the ref box
uv_res@vcRefLengthF = 0.040
uv_res@vcGlyphStyle = "WindBarb"
; uv_res@vcMinDistanceF = 0.025
uv_res@vcMonoWindBarbColor = True ; color the windbarbs with
; respect to speed use False
; ---------------------- ground height
; ground_res@gsnFrame = False
ground_res@cnFillOn = False ; turns on the color
ground_res@sfXArray = taus ; Define X/Y axes values that
ground_res@sfYArray = levels ; all three data fields are on
ground_res@xyLineThicknesses = 2
ground_res@xyLineColor = "red"
ground_res@gsnYRefLine = 1000.0 ; create a reference line
ground_res@gsnBelowYRefLineColor = "red" ; Below (but vertical is upside
down) ref line fill color
ground_res@gsnAboveYRefLineColor = "red" ; above ref line fill color
ground_res@gsnXYBarChart = True
; Create the four plots (they won't get drawn here, because gsnDraw
; was set to False for all three of them.
;
rhfill = gsn_contour(wks,smothrh,rh_res)
templine = gsn_contour(wks,smothtemp,temp_res)
windlayer = gsn_vector(wks,ugrid,vgrid,uv_res)
ground = gsn_csm_xy(wks,taus,PresAtSfc,ground_res)
; ---------------------- overlay, draw, and advance frame
overlay(rhfill,templine) ; overlay makes rhfill = (rhfill,templine)
overlay(rhfill,windlayer); overlay makes rhfill = ((rhfill,templine) +
windlayer)
overlay(rhfill,ground)
draw(rhfill)
frame(wks)
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