/usr/share/ncarg/hluex/ngmath/nm05f.f is in libncarg-data 6.4.0-9.
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C
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C C
C Copyright (C) 1997 C
C University Corporation for Atmospheric Research C
C All Rights Reserved C
C C
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C
C File: nm05f.f
C
C Author: Mary Haley (taken from one of Fred Clare's examples)
C National Center for Atmospheric Research
C PO 3000, Boulder, Colorado
C
C Date: Mon Dec 22 13:53:37 MST 1997
C
C Description: How to vary the exponent of the distances in a
C 2D interpolation.
C
external NhlFAppClass
external NhlFNcgmWorkstationClass
external NhlFPSWorkstationClass
external NhlFPDFWorkstationClass
external NhlFCairoPSPDFWorkstationClass
external NhlFCairoImageWorkstationClass
external NhlFCairoWindowWorkstationClass
parameter(NUM=6,NX=61,NY=61)
real xi(NUM), yi(NUM), zi(NUM)
real xo(NX), yo(NY), output(NX,NY)
real xinc, yinc
C
C Input data points and values.
C
data xi/0.00, 1.00, 0.00, 1.00, 0.40, 0.75/
data yi/0.00, 0.00, 1.00, 1.00, 0.20, 0.65/
data zi/0.00, 0.00, 0.00, 0.00, 1.25, 0.80/
data rho, theta, phi/3., -45., 55./
integer ier
integer appid,wid,gkswid
integer srlist, grlist
integer i
character*7 wks_type
C
C Default is to display output to an NCGM workstation.
C
wks_type = "ncgm"
C
C Initialize the high level utility library
C
call NhlFInitialize
C
C Create an application context. Set the app dir to the current directory
C so the application looks for a resource file in the working directory.
C In this example the resource file supplies the plot title only.
C
call NhlFRLCreate(srlist,'setrl')
call NhlFRLCreate(grlist,'getrl')
call NhlFRLClear(srlist)
call NhlFRLSetString(srlist,'appDefaultParent','True',ierr)
call NhlFRLSetString(srlist,'appUsrDir','./',ierr)
call NhlFCreate(appid,'nm05',NhlFAppClass,0,srlist,ierr)
if (wks_type.eq."ncgm".or.wks_type.eq."NCGM") then
C
C Create an NCGM workstation.
C
call NhlFRLClear(srlist)
call NhlFRLSetString(srlist,'wkMetaName','./nm05f.ncgm',ierr)
call NhlFCreate(wid,'nm05Work',
+ NhlFNcgmWorkstationClass,0,srlist,ierr)
else if (wks_type.eq."x11".or.wks_type.eq."X11") then
C
C Create an X11 workstation.
C
call NhlFRLClear(srlist)
call NhlFRLSetString(srlist,'wkPause','True',ierr)
call NhlFCreate(wid,'nm05Work',
+ NhlFCairoWindowWorkstationClass,
+ 0,srlist,ierr)
else if (wks_type.eq."oldps".or.wks_type.eq."OLDPS") then
C
C Create an older-style PostScript workstation.
C
call NhlFRLClear(srlist)
call NhlFRLSetString(srlist,'wkPSFileName','./nm05f.ps',ierr)
call NhlFCreate(wid,'nm05Work',
+ NhlFPSWorkstationClass,0,srlist,ierr)
else if (wks_type.eq."oldpdf".or.wks_type.eq."OLDPDF") then
C
C Create an older-style PDF workstation.
C
call NhlFRLClear(srlist)
call NhlFRLSetString(srlist,'wkPDFFileName','./nm05f.pdf',ierr)
call NhlFCreate(wid,'nm05Work',
+ NhlFPDFWorkstationClass,0,srlist,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(srlist)
call NhlFRLSetString(srlist,'wkFileName','./nm05f',ierr)
call NhlFRLSetString(srlist,'wkFormat',wks_type,ierr)
call NhlFCreate(wid,'nm05Work',
+ NhlFCairoPSPDFWorkstationClass,0,srlist,ierr)
else if (wks_type.eq."png".or.wks_type.eq."PNG") then
C
C Create a cairo PNG workstation.
C
call NhlFRLClear(srlist)
call NhlFRLSetString(srlist,'wkFileName','./nm05f',ierr)
call NhlFRLSetString(srlist,'wkFormat',wks_type,ierr)
call NhlFCreate(wid,'nm05Work',
+ NhlFCairoImageWorkstationClass,0,srlist,ierr)
endif
C
C Specify the output grid.
C
xinc = 1./real(nx-1)
yinc = 1./real(ny-1)
do 30 i=1,nx
xo(i) = real((i-1)*xinc)
30 continue
do 40 j=1,ny
yo(j) = real((j-1)*yinc)
40 continue
C
C Exponent equals 0.5
C
call dssetr('EXP',0.5)
call dsgrid2s(num, xi, yi, zi, nx, ny, xo, yo, output, ier)
C
C Get Workstation ID.
C
call NhlFRLClear(grlist)
call NhlFRLGetInteger(grlist,'wkGksWorkId',gkswid,ierr)
call NhlFGetValues(wid,grlist,ierr)
C
C There's no HLU object for surface plots yet, so we need to call the
C LLUs to get a surface plot.
C
call gacwk (gkswid)
call tdez2d(NX,NY,xo,yo,output,rho,theta,phi,6)
call gdawk (gkswid)
call NhlFFrame(wid,ierr)
C
C Exponent equals 1.0
C
call dssetr('EXP',1.0)
call dsgrid2s(num, xi, yi, zi, nx, ny, xo, yo, output, ier)
call gacwk (gkswid)
call tdez2d(NX,NY,xo,yo,output,rho,theta,phi,6)
call gdawk (gkswid)
call NhlFFrame(wid,ierr)
C
C Exponent equals 5.0
C
call dssetr('EXP',5.0)
call dsgrid2s(num, xi, yi, zi, nx, ny, xo, yo, output, ier)
call gacwk (gkswid)
call tdez2d(NX,NY,xo,yo,output,rho,theta,phi,6)
call gdawk (gkswid)
call NhlFFrame(wid,ierr)
C
C NhlDestroy destroys the given id and all of its children.
C
call NhlFDestroy(wid,ierr)
C
C Restores state.
C
call NhlFClose
stop
end
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