[ncl-talk] xyplot producing empty pdf but no error message

[Mark Ross England]

Hi there,


Thanks for help in advance.


I am doing something very similar to xy_2.ncl example on the NCL examples
webpage. I have simplified the code to try and work out where it is going
wrong.


I get no error message however the pdf which is produced is empty and is 0
bytes.


I have written out the final data to make code shorter. I can’t find where
my code is any different to the example which makes me think there is
something else going wrong.


If I replace pdf with png it gives this error message which I couldn’t find
anything on:

 GKS ERROR NUMBER -502 ISSUED FROM SUBROUTINE GCLRWK:

 -- cairo driver error: error opening output file


Thank you very much,


Mark


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

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

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


; ----------------------------------------------

begin

wks = gsn_open_wks ("pdf", "TS") ; send graphics to PDF file


data2 = (/(/273.1187, 273.3957, 271.8196, 268.2388, 265.0738, 263.2264,
262.0622, 261.7988, 263.2089, 266.001, 269.4273, 271.867, 273.1187/),
(/275.6794, 276.363, 275.8335, 273.9187, 271.6543, 269.8786, 268.6503,
267.9535, 268.2413, 269.8357, 272.1223, 274.2099, 275.6794/), (/274.4088,
274.9937, 273.6758, 269.9453, 266.8276, 264.6391, 263.7714, 263.5388,
264.7565, 267.5732, 270.5323, 272.9919, 274.4088/)/)


months = ispan(1,13,1)


res = True ; plot mods desired

res at tiMainString = "Antarctic surface temperature"       ; add title

res at xyMarkerColors = (/"blue","red","green"/)

plot = gsn_csm_xy (wks, months, data2, res) ; create plot

end
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