/usr/share/ncarg/xyplot/xyplot/xy08n.ncl is in libncarg-data 6.4.0-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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; $Id: xy08n.ncl,v 1.9 2010-03-15 22:49:25 haley Exp $
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; Copyright (C) 1995 ;
; University Corporation for Atmospheric Research ;
; All Rights Reserved ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;; File: xy08n.ncl
;;
;; Author: Mary Haley
;; National Center for Atmospheric Research
;; PO 3000, Boulder, Colorado
;;
;; Date: Tue Apr 4 13:02:35 MDT 1995
;;
;; Description: This example is similar to the ncargex Autograph
;; example "agex13". It shows how to use Irregular
;; points to change the transformation of your plot.
;; It also shows how to read an ascii data file using
;; "asciiread".
;;
;; The "CoordArrays" object is used to set up the data.
;; (The C version uses the "CoordArrTable" object which
;; is not available in Fortran or NCL.)
;;
;;
;
; Begin NCL script.
;
begin
;
; Define procedure for setting up data arrays.
;
procedure assigndata(
xc[*]:float,
x[*][*]:float,
y[*][*]:float,
len[*]:integer,
npts:integer,
ncurve:integer
)
local
i,
j,
l
begin
l = 0
do i = 0, ncurve-1
do j = 0,len(i)*2-1,2
x(i,j/2) = xc(l)
y(i,j/2) = xc(l+1)
l = l + 2
end do
end do
end
;
; Create variables to contain data.
;
ncurve = 3
npts = 61
npts2 = 220
xcoord = new(npts2,float)
xdra = new((/ncurve,npts/),float)
ydra = new((/ncurve,npts/),float)
len = new(ncurve,integer)
len = (/12,37,61/)
;
; Create array to contain dataitem ids.
;
dataid = new(ncurve,graphic)
;
; Initialize some data for the XyPlot object.
;
;
; Read the input data
;
len_dims = new(1,integer)
len_dims(0) = npts2
xcoord = asciiread("xy08.asc",len_dims,"float")
xcoord = 2. ^ ((xcoord-15.)/2.5)
assigndata(xcoord,xdra,ydra,len,npts,ncurve)
;
; Initialize tickmark values
;
explicit_values = 2.^ispan(-6,7,1)
;
; Modify the color map. Color indices '0' and '1' are the background
; and foreground colors respectively.
;
ncolors = 3
cmap = (/ (/1.00,1.00,1.00/), (/0.00,0.00,0.00/), (/0.00,0.00,1.00/)/)
;
; Create Application object. The Application object name is used to
; determine the name of the resource file, which is "xy08.res" in this
; case.
;
appid = create "xy08" appClass defaultapp
"appDefaultParent" : True
"appUsrDir" : "./"
end create
;
; Default is to display output to an X workstation
;
wks_type = "x11"
if (str_lower(wks_type).eq."ncgm") then
;
; Create an ncgmWorkstation object.
;
xworkid = create "xy08Work" ncgmWorkstationClass defaultapp
"wkMetaName" : "xy08n.ncgm"
"wkColorMap" : cmap
end create
end if
if (str_lower(wks_type).eq."x11") then
;
; Create an X11 workstation.
;
xworkid = create "xy08Work" windowWorkstationClass defaultapp
"wkPause" : True
"wkColorMap" : cmap
end create
end if
if (str_lower(wks_type).eq."oldps") then
;
; Create an older-style PostScript workstation.
;
xworkid = create "xy08Work" psWorkstationClass defaultapp
"wkPSFileName" : "xy08n.ps"
"wkColorMap" : cmap
end create
end if
if (str_lower(wks_type).eq."oldpdf") then
;
; Create an older-style PDF workstation.
;
xworkid = create "xy08Work" pdfWorkstationClass defaultapp
"wkPDFFileName" : "xy08n.pdf"
"wkColorMap" : cmap
end create
end if
if (str_lower(wks_type).eq."pdf".or.str_lower(wks_type).eq."ps") then
;
; Create a cairo PS/PDF Workstation object.
;
xworkid = create "xy08Work" documentWorkstationClass defaultapp
"wkFileName" : "xy08n"
"wkFormat" : wks_type
"wkColorMap" : cmap
end create
end if
if (str_lower(wks_type).eq."png") then
;
; Create a cairo PNG Workstation object.
;
xworkid = create "xy08Work" imageWorkstationClass defaultapp
"wkFileName" : "xy08n"
"wkFormat" : wks_type
"wkColorMap" : cmap
end create
end if
;
; Create the CoordArrays which defines the data for the XyPlot
; object. The id from this object will become the value for the XyPlot
; resource, "xyCoordData".
;
do i=0,ncurve-1
dataid(i) = create "xyData"+i coordArraysClass defaultapp
"caYArray": ydra(i,0:len(i)-1)
"caXArray": xdra(i,0:len(i)-1)
end create
end do
;
; Create the XyPlot object and tweak some of the tickmark, title and
; view port resources (some in the "xy08.res" resource file).
;
plotid = create "xyPlot" xyPlotClass xworkid
"tmXBValues": explicit_values
"tmYLValues": explicit_values
"xyXIrregularPoints": explicit_values
"xyYIrregularPoints": explicit_values
"xyCoordData": dataid
end create
;
; Draw the plot.
;
draw(plotid)
frame(xworkid)
;
; End NCL script.
;
end
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