Problem with overlaying gsn_csm_xy2 on a bar chart

Hi, All

I have a problem when I overlay a gsn_csm_xy2 on a gsn_csm_xy, which
res@gsnXYBarChart = True

Here is my plot:

http://shinx.myweb.hinet.net/TMIN.jpg

The blue line with triangle marker is for y1(left side y-Axis) , and the red
line with dot marker is for y2(right side y-Axis)

As the plot shows, y2 is not mapped properly to its X-Axis. It should be
like y1 does.

By the way, They were fine until I turned res(sky blue data)@gsnXYBarChart =
True

Any idea? Thanks,

Shinx

;===============================================================

; test.ncl

;===============================================================

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"

; ========================================================================

begin

;=========================================================================

;=========================================================================

inputfn="TMIN.txt"

modelname="TMIN"

;=======================

; start to read in data

;=======================

  dummy = asciiread(inputfn,-1,"string")

  data = new((/8,12/),"float")

  data(0,:) = stringtofloat(str_get_field(dummy(1::), 1," "))

  data(1,:) = stringtofloat(str_get_field(dummy(1::), 2," "))

  data(2,:) = stringtofloat(str_get_field(dummy(1::), 3," "))

  data(3,:) = stringtofloat(str_get_field(dummy(1::), 4," "))

  data(4,:) = stringtofloat(str_get_field(dummy(1::), 5," "))

  data(5,:) = stringtofloat(str_get_field(dummy(1::), 6," "))

  data(6,:) = stringtofloat(str_get_field(dummy(1::), 7," "))

  data(7,:) = stringtofloat(str_get_field(dummy(1::), 8," "))

  dataset=new(8,"string")

  dataset(1)=str_get_field(dummy(0), 1," ")

  dataset(2)=str_get_field(dummy(0), 2," ")

  dataset(3)=str_get_field(dummy(0), 3," ")

  dataset(4)=str_get_field(dummy(0), 4," ")

  dataset(5)=str_get_field(dummy(0), 5," ")

  dataset(6)=str_get_field(dummy(0), 6," ")

  dataset(7)=str_get_field(dummy(0), 7," ")

  x=ispan(1,12,1)

  outputfn=modelname

;====================

; PLOT

;====================

  wks = gsn_open_wks("ps",outputfn)

  res0 = True ; lines with no marker

  resH = True ; Bar chart , Histogram

  resL = True ; y1

  resR = True ;y2

  resH@gsnDraw = False

  resH@gsnFrame = False

  resH@tmXBMode = "Explicit"

  resH@tmXBValues = data(0,:)

  resH@tmXBLabels = data(0,:)

  resH@gsnMaximize = True

  resH@gsnPaperOrientation = "portrait"

  resR = resH

  resH@trYMinF = 0

  resH@trYMaxF = 3.5

  res0 = resH

  resL = resH

  resH@tmXTOn = False

  resH@tmYROn = False

  resH@gsnXYBarChart = True ; turn on bar chart

  resH@gsnXYBarChartBarWidth = 0.75 ; change bar widths

  resH@gsnXYBarChartColors = "SkyBlue"

  res0@xyDashPattern = 0

  res0@xyMarkLineMode = "Lines" ; Markers *and* lines

  res0@xyLineColors = "black"

  res0@tmXTOn = False

  res0@tmYROn = False

  resR@xyDashPattern = 0

  resR@trYMinF = 0

  resR@trYMaxF = 1

  resR@tiYAxisString = "COR"

  resR@tiYAxisFontHeightF = 0.01

  resR@xyMarkLineMode = "MarkLines" ; Markers *and* lines

  resR@xyMarkers = 16

  resR@xyLineColors = "red"

  resR@xyMarkerColors = "red"

  resR@xyMarkerSizeF = 0.01

  resL@xyDashPattern = 0

  resL@tiYAxisString = "RMS"

  resL@tiYAxisFontHeightF = 0.01

  resL@xyMarkLineMode = "MarkLines" ; Markers *and* lines

  resL@xyMarkers = 7

  resL@xyLineColors = "blue"

  resL@xyMarkerColors = "blue"

  resL@xyMarkerSizeF = 0.01

  plotH=gsn_csm_xy(wks,data(0,:),data(1,:),resH)

  plot0=gsn_csm_xy(wks,data(0,:),data(3:6,:),res0)

  plotL=gsn_csm_xy2(wks,data(0,:),data(2,:),data(7,:),resL,resR)

  overlay(plotH,plot0)

  overlay(plotH,plotL)

  draw(plotH)

  frame(wks)

  system("convert -density 300 -trim "+outputfn+".ps "+outputfn+".png")

  system("rm "+outputfn+".ps") ;delete .ps file

end

_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Tue Feb 9 00:10:47 2010