/usr/share/ncarg/hluex/xyplot/xy07f.f is in libncarg-data 6.4.0-9.
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C $Id: xy07f.f,v 1.8 2010-03-15 22:49:25 haley Exp $
C
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
C C
C Copyright (C) 1995 C
C University Corporation for Atmospheric Research C
C All Rights Reserved C
C C
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
C
C File: xy07f.f
C
C Author: Mary Haley (converted from example "agex11")
C National Center for Atmospheric Research
C PO 3000, Boulder, Colorado
C
C Date: Mon Apr 24 11:11:02 MST 1995
C
C Description: This example is similar to the ncargex Autograph
C example "agex11". It shows how to draw a "scattergram".
C It also shows one way on how to modify the color map
C so we can get a different background/foreground color.
C
external NhlFAppClass
external NhlFCairoWindowWorkstationClass
external NhlFNcgmWorkstationClass
external NhlFPSWorkstationClass
external NhlFPDFWorkstationClass
external NhlFCairoPSPDFWorkstationClass
external NhlFCairoImageWorkstationClass
external NhlFCoordArraysClass
external NhlFXyPlotClass
parameter(NPTS=250)
C
C Create data arrays for XyPlot object.
C
real xdra(NPTS), ydra(NPTS)
integer appid,xworkid,plotid,dataid(2)
integer i, j, len(2)
real cmap(3,4)
character*10 datastr
CHARACTER*7 wks_type
C
C Define the workstation type
C
wks_type = "x11"
C
C
C Initialize the HLU library and set up resource template.
C
call NhlFInitialize
call NhlFRLCreate(rlist,'setrl')
C
C Change the color map so we can have a white background, a black
C foreground and two colors defined for our markers. Color '1' is
C the background color and '2' is the foreground color.
C
cmap(1,1) = 1.
cmap(2,1) = 1.
cmap(3,1) = 1.
cmap(1,2) = 0.
cmap(2,2) = 0.
cmap(3,2) = 0.
cmap(1,3) = 1.
cmap(2,3) = 0.
cmap(3,3) = 0.
cmap(1,4) = 0.
cmap(2,4) = 0.
cmap(3,4) = 1.
len(1) = 3
len(2) = 4
C
C Create Application object. The Application object name is used to
C determine the name of the resource file, which is "xy07.res" in
C this case.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'appDefaultParent','True',ierr)
call NhlFRLSetString(rlist,'appUsrDir','./',ierr)
call NhlFCreate(appid,'xy07',NhlFAppClass,0,rlist,ierr)
if (wks_type.eq."ncgm".or.wks_type.eq."NCGM") then
C
C Create an NCGMWorkstation object.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkMetaName','./xy07f.ncgm',ierr)
call NhlFRLSetMDFloatArray(rlist,'wkColorMap',cmap,2,len,ierr)
call NhlFCreate(xworkid,'xy07Work',
+ NhlFNcgmWorkstationClass,0,rlist,ierr)
else if (wks_type.eq."x11".or.wks_type.eq."X11") then
C
C Create an XWorkstation object.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkPause','True',ierr)
call NhlFRLSetMDFloatArray(rlist,'wkColorMap',cmap,2,len,ierr)
call NhlFCreate(xworkid,'xy07Work',
+ NhlFCairoWindowWorkstationClass,
+ 0,rlist,ierr)
else if (wks_type.eq."oldps".or.wks_type.eq."OLDPS") then
C
C Create a PSWorkstation object.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkPSFileName','./xy07f.ps',ierr)
call NhlFRLSetMDFloatArray(rlist,'wkColorMap',cmap,2,len,ierr)
call NhlFCreate(xworkid,'xy07Work',
+ NhlFPSWorkstationClass,0,rlist,ierr)
else if (wks_type.eq."oldpdf".or.wks_type.eq."OLDPDF") then
C
C Create a PDFWorkstation object.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkPDFFileName','./xy07f.pdf',ierr)
call NhlFRLSetMDFloatArray(rlist,'wkColorMap',cmap,2,len,ierr)
call NhlFCreate(xworkid,'xy07Work',
+ NhlFPDFWorkstationClass,0,rlist,ierr)
else if (wks_type.eq."pdf".or.wks_type.eq."PDF".or.
+ wks_type.eq."ps".or.wks_type.eq."PS") then
C
C Create a cairo PS/PDF workstation.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkFileName','./xy07f',ierr)
call NhlFRLSetString(rlist,'wkFormat',wks_type,ierr)
call NhlFRLSetMDFloatArray(rlist,'wkColorMap',cmap,2,len,ierr)
call NhlFCreate(xworkid,'xy07Work',
+ NhlFcairoPSPDFWorkstationClass,0,rlist,ierr)
else if (wks_type.eq."png".or.wks_type.eq."PNG") then
C
C Create a cairo PNG workstation.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkFileName','./xy07f',ierr)
call NhlFRLSetString(rlist,'wkFormat',wks_type,ierr)
call NhlFRLSetMDFloatArray(rlist,'wkColorMap',cmap,2,len,ierr)
call NhlFCreate(xworkid,'xy07Work',
+ NhlFcairoImageWorkstationClass,0,rlist,ierr)
endif
C
C Since we have two sets of points that we want to color differently,
C we need to create two Data obects here.
C
do 20 j = 1,2
C
C Initialize data.
C
do 10 i = 1, NPTS
xdra(i)=.5+(2.*(fran()-.5))**5
ydra(i)=.5+(2.*(fran()-.5))**5
10 continue
C
C Define a data object. Note that we are naming each object differently
C so we can distinguish them in the resource file.
C
call NhlFRLClear(rlist)
call NhlFRLSetFloatArray(rlist,'caXArray',xdra,NPTS,ierr)
call NhlFRLSetFloatArray(rlist,'caYArray',ydra,NPTS,ierr)
write(datastr,30)j-1
call NhlFCreate(dataid(j),datastr,NhlFcoordArraysClass,0,rlist,
+ ierr)
20 continue
30 format('xyData',i1)
C
C Create the XyPlot object.
C
call NhlFRLClear(rlist)
call NhlFRLSetIntegerArray(rlist,'xyCoordData',dataid,2,ierr)
call NhlFCreate(plotid,'xyPlot',NhlFxyPlotClass,xworkid,rlist,
+ ierr)
C
C Draw the plot.
C
call NhlFDraw(plotid,ierr)
call NhlFFrame(xworkid,ierr)
C
C NhlDestroy destroys the given id and all of its children
C so destroying xworkwid will also destroy plotid.
C
call NhlFDestroy(xworkid,ierr)
C
C Restores state.
C
call NhlFDestroy(appid,ierr)
call NhlFClose
stop
end
function fran()
C
C Pseudo-random-number generator.
C
double precision x
save x
data x / 2.718281828459045 /
x=mod(9821.d0*x+.211327d0,1.d0)
fran=real(x)
return
end
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