[ncl-talk] Help in Plotting

[Mary Haley]

Arun,

Map tickmarks are very limited, and the tmXB / tmYL resources are disabled
for most map projections.

You didn't say what kind of map projection you have, but you should visit
our map tickmarks examples page to see ways that you can add your own
tickmarks to projections other than standard lat/lon:

http://www.ncl.ucar.edu/Applications/mptick.shtml

In particular, look at examples mptick_9.ncl, and maybe the two after this.

--Mary


On Mon, Oct 5, 2015 at 6:16 AM, Arun Kumar Dwivedi <
dwivedi.arunkumar at gmail.com> wrote:

> Hello Everyone,
> I need to modify the interval on x and y axes according to my necessity
> but I am not able to do that. I have attached the screenshot of my ncl
> window and my is my code is as following:
>
>
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"      ;Load the
> required library files
> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>
> begin                                                         ;NCL script
> always start with 'begin'
>
>   a = addfile("wrfout_d01_2014-08-08_00.nc","r")              ;Loads the
> required nc file
>
> ; Type of plot outputfile
> ;type = "x11"
> ; type = "pdf"
> ; type = "ps"
> ; type = "ncgm"
>  type = "png"
> ;type at wkWidth = 600
> ;type at wkHeight = 800
>   wks = gsn_open_wks(type,"final_gsn")                     ; Create op
> plot file with name
>
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ; First get the variables we will need
> tk2 = wrf_user_getvar(a,"HGT",0)     ; T2 in Kelvin
> tc2 = tk2-273.16                  ; T2 in C
> lat = wrf_user_getvar(a,"XLAT",0)
> lon = wrf_user_getvar(a,"XLONG",0)
> ;print(lat(:,0)) ;all lat values
> ;print(lon(0,:)) ;all lon values
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ; Plotting options for T
> res = True
> res at gsnDraw      = False             ;Don't draw yet
>   res at gsnFrame     = False ;Don't advance the frame(plot file will create
> but nothing will draw)
> res at gsnSpreadColors       = True       ; use full range of colormap
> res at gsnMaximize          = True   ;maximize plot in frame
> res at cnFillOn = True   ;Turn On the contour color
> res at cnLinesOn = False ;Turn Off the contour lines
>
> res at lbTitleOn = False ;Turn off the color bar text
> res at lbOrientation = "Vertical" ;color bar orientation
>
> ;res at pmLabelBarSide = "Right" ;color bar position
> res at pmTickMarkDisplayMode = "Always"
>
> res at mpGridAndLimbOn = False
> res at mpOutlineOn = False  ;NCL Map outline off(Outline taking from
> shapefile)
> res at mpFillOn    = False
> ;res at mpTickMarkDisplayMode = "Never" ;put it off otherwise some tick
> marks reqources will not work
>
>
> ;Necessary for contours to be overlaid correctly on WRF projection
>   res at tfDoNDCOverlay       = True
>   ;res at gsnAddCyclic         = True
>
> res at tiMainString         = "Terrain Height (m)  "
> res at tiMainFontHeightF     =  0.03
> ; res at tmEqualizeXYSizes = True ;share the same label font height and
> major and minor tick lengths
>   res at tmXBOn = True
>   res at tmYLOn = True
> res at tmXBMode      = "Manual"   ; Define your own tick mark labels.
> res at tmYLMode      = "Manual"   ; Define your own tick mark labels.
> ;res at tmXBLabelFontColor = 1 ; Change the color of the x-axis
> res at tmXBLabelAngleF = 0 ; Change the angle on x-axis (bottom) values
>   res at tmXBLabelFont = 0           ; Change font of labels.
>   res at tmYLLabelFont = 0           ; Change font of labels.
> res at tmXBLabelFontHeightF =0.015 ; Change font height of labels.
> res at tmYLLabelFontHeightF =0.02 ; Change font height of labels.
> ;res at tmXBLabelFontAspectF = 1.3
> res at tmXBLabelFontThicknessF = 5
> res at tmYLLabelFontThicknessF = 5
>
> res at tmXBTickStartF = min(lon(0,:))
> res at tmXBTickEndF = max(lon(0,:))
> res at tmXBTickSpacingF = 2
> res at tmYLTickStartF = min(lat(:,0))
> res at tmYLTickEndF = max(lat(:,0))
> res at tmYLTickSpacingF = 2
>
>
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>
> ;Set map resources based on projection on WRF output file
>   res = wrf_map_resources(a,res)
> contour_tc = gsn_csm_contour_map(wks,tc2,res)
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;Attach shapefile polylines to map
> lnres = True
> lnres at NoHeaderFooterOn = True
> lnres at gsLineColor      = "Black"
>   lnres at gsLineThicknessF = 3.0
>
>   poly =
> gsn_add_shapefile_polylines(wks,contour_tc,"india_state.shp",lnres)
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;Now everything will be drawn
> draw(contour_tc)
> frame(wks)
>
> end
>
>
> Kindly help me.
> Thanks & Regards
> Arun Kumar Dwivedi,
> Mob :09546189035
>
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