/usr/share/ncarg/hluex/primitives/pr01f.f is in libncarg-data 6.3.0-6build1.
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C; ;
C; Copyright (C) 1996 ;
C; University Corporation for Atmospheric Research ;
C; All Rights Reserved ;
C; ;
C;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
C
C File: pr01f.f
C
C Author: Lynn Hermanson
C National Center for Atmospheric Research
C PO 3000, Boulder, Colorado
C
C Date: May 6, 1996
C
C Description: Given an array of xaxis values and
C an array of yaxis values, where each
C x,y pair corresponds to one vertex or
C the location of one point, draw a
C square (a polyline), four points (asterisks)
C at the corners of a square (a polymarker), and
C a rectangular filled area (a polygon),on to
C a blank canvas (an empty default logLinPlot).
C Polylines, polymarkers, and polygons, are
C refered to as primitives.
C
external NhlFAppClass
external NhlFNcgmWorkstationClass
external NhlFPSWorkstationClass
external NhlFPDFWorkstationClass
external NhlFCairoPSPDFWorkstationClass
external NhlFCairoImageWorkstationClass
external NhlFCairoWindowWorkstationClass
external NhlFMapPlotClass
external NhlFVectorFieldClass
external NhlFLogLinPlotClass
external NhlFGraphicStyleClass
integer appid,wid,cid,gsid
integer rlist,ierr
parameter(N=5)
parameter(M=4)
parameter(K=5)
real X(N),Y(N)
real U(M),V(M)
real PX(K),PY(K)
character*7 wks_type
C
C Define the workstation type
C
wks_type = "x11"
C
C These are the polyline points /*a square*/
C
X(1) = .3
X(2) = .3
X(3) = .5
X(4) = .5
X(5) = .3
Y(1) = .3
Y(2) = .5
Y(3) = .5
Y(4) = .3
Y(5) = .3
C
C These are the polymarker points /*four corner points*/
C
U(1) = .4
U(2) = .4
U(3) = .6
U(4) = .6
V(1) = .4
V(2) = .6
V(3) = .6
V(4) = .4
C
C These are the polygon points /*a filled rectangle*/
C
PX(1) = .7
PX(2) = .7
PX(3) = .8
PX(4) = .8
PX(5) = .7
PY(1) = .2
PY(2) = .8
PY(3) = .8
PY(4) = .2
PY(5) = .2
C
C Initialize the high level utility library
C
call NhlFInitialize()
C Next,
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 the following example default resources are used.
C
call NhlFRLCreate(rlist,'SETRL')
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'appUsrDir','./',ierr)
call NhlFCreate(appid,'pr01',NhlFappClass,
1 NhlFDEFAULT_APP,rlist,ierr)
C Choose to display output to an X11 workstation.(set above)*/
if (wks_type.eq."ncgm".or.wks_type.eq."NCGM") then
C
C Create a meta file workstation.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkMetaName','./pr01f.ncgm',ierr)
call NhlFCreate(wid,'pr01Work',NhlFncgmWorkstationClass,
1 appid,rlist,ierr)
else if (wks_type.eq."x11".or.wks_type.eq."X11") then
C
C Create an X workstation.
C
call NhlFRLClear(rlist)
call NhlFRLSetInteger(rlist,'wkPause','true',ierr)
call NhlFCreate(wid,'pr01Work',
1 NhlFCairoWindowWorkstationClass,
1 appid,rlist,ierr)
else if (wks_type.eq."oldps".or.wks_type.eq."OLDPS") then
C
C Create an older-style PS workstation.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkPSFileName','./pr01f.ps',ierr)
call NhlFCreate(wid,'pr01Work',NhlFpsWorkstationClass,
1 appid,rlist,ierr)
else if (wks_type.eq."oldpdf".or.wks_type.eq."OLDPDF") then
C
C Create an older-style PDF workstation.
C
call NhlFRLClear(rlist)
call NhlFRLSetString(rlist,'wkPDFFileName','./pr01f.pdf',ierr)
call NhlFCreate(wid,'pr01Work',NhlFpdfWorkstationClass,
1 appid,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,'wkFormat',wks_type,ierr)
call NhlFRLSetString(rlist,'wkFileName','./pr01f',ierr)
call NhlFCreate(wid,'pr01Work',
1 NhlFCairoPSpdfWorkstationClass,appid,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,'wkFormat',wks_type,ierr)
call NhlFRLSetString(rlist,'wkFileName','./pr01f',ierr)
call NhlFCreate(wid,'pr01Work',
1 NhlFCairoImageWorkstationClass,appid,rlist,ierr)
endif
C Create a blank plot object to draw the primitives on.*/
call NhlFRLClear(rlist)
call NhlFCreate(cid,'canvas',NhlFlogLinPlotClass,
1 wid,rlist,ierr)
C Create a graphicPlot object consisting of, the default styles.*/
C The graphicStyle object is NOT a stand-alone plot object. There
C must exist some kind of plot object which has already been drawn
C to place the primitives on.
call NhlFRLClear(rlist)
call NhlFCreate(gsid,'defaultstyle',NhlFgraphicStyleClass,
1 wid,rlist,ierr)
C Draw the shapes onto the blank logLinPlot object.
C Signify end of frame.*/
call NhlFDraw(cid,ierr)
C The last paramenter is the number of points required*/
call NhlFNDCPolyline(cid, gsid, X, Y,5,ierr)
call NhlFNDCPolymarker(cid, gsid, U, V,4,ierr)
call NhlFNDCPolygon(cid, gsid, PX, PY,5,ierr)
call NhlFFrame(wid,ierr)
C Destroy all of the objects created, close the HLU library and exit.*/
call NhlFDestroy(cid,ierr)
call NhlFDestroy(wid,ierr)
call NhlFDestroy(appid,ierr)
call NhlFClose
stop
end
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