/usr/share/ncarg/hluex/xyplot/xy01c.c is in libncarg-data 6.1.2-7.
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** $Id: xy01c.c,v 1.17 2010-03-15 22:49:25 haley Exp $
*/
/***********************************************************************
* *
* Copyright (C) 1995 *
* University Corporation for Atmospheric Research *
* All Rights Reserved *
* *
***********************************************************************/
/*
** File: xy01c.c
**
** Author: Mary Haley
** National Center for Atmospheric Research
** PO 3000, Boulder, Colorado
**
** Date: Fri Jan 27 08:24:42 MST 1995
**
** Description: This program shows how to create an XyPlot object
** using all the default resources except for the data
** resource; since there's no "default data", we need
** to create some. A resource file is included with
** this example, but only to show what all the XyPlot
** resources are and what their defaults are set to.
** The whole resource file is commented out.
** The "CoordArrays" object is used to set up the data.
**
*/
#include <stdio.h>
#include <math.h>
#include <ncarg/hlu/hlu.h>
#include <ncarg/hlu/ResList.h>
#include <ncarg/hlu/App.h>
#include <ncarg/hlu/NcgmWorkstation.h>
#include <ncarg/hlu/PSWorkstation.h>
#include <ncarg/hlu/PDFWorkstation.h>
#include <ncarg/hlu/CairoWorkstation.h>
#include <ncarg/hlu/XyPlot.h>
#include <ncarg/hlu/CoordArrays.h>
/*
* Define the number of points in the curve.
*/
#define NPTS 500
#define PI100 .031415926535898
int main()
{
int appid,xworkid,plotid,dataid;
int rlist;
int i;
float ydra[NPTS], theta;
char const *wks_type = "x11";
/*
* Initialize some data for the XY plot.
*/
for( i = 0; i < NPTS; i++ ) {
theta = PI100*(float)(i);
ydra[i] = 500.+.9*(float)(i)*sin(theta);
}
/*
* Initialize the HLU library and set up resource template.
*/
NhlInitialize();
rlist = NhlRLCreate(NhlSETRL);
/*
* Create Application object. The Application object name is used to
* determine the name of the resource file, which is "xy01.res" in
* this case.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNappDefaultParent,"True");
NhlRLSetString(rlist,NhlNappUsrDir,"./");
NhlCreate(&appid,"xy01",NhlappClass,NhlDEFAULT_APP,rlist);
if (!strcmp(wks_type,"ncgm") || !strcmp(wks_type,"NCGM")) {
/*
* Create a meta file object.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkMetaName,"./xy01c.ncgm");
NhlCreate(&xworkid,"xy01Work",NhlncgmWorkstationClass,
NhlDEFAULT_APP,rlist);
}
if (!strcmp(wks_type,"x11") || !strcmp(wks_type,"X11")) {
/*
* Create an X11 Workstation.
*/
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNwkPause,True);
NhlCreate(&xworkid,"xy01Work",NhlcairoWindowWorkstationClass,
NhlDEFAULT_APP,rlist);
}
if (!strcmp(wks_type,"oldps") || !strcmp(wks_type,"OLDPS")) {
/*
* Create an older-style PostScript workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkPSFileName,"xy01c.ps");
NhlCreate(&xworkid,"xy01Work",NhlpsWorkstationClass,
NhlDEFAULT_APP,rlist);
}
if (!strcmp(wks_type,"oldpdf") || !strcmp(wks_type,"OLDPDF")) {
/*
* Create an older-style PDF workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkPDFFileName,"xy01c.pdf");
NhlCreate(&xworkid,"xy01Work",NhlpdfWorkstationClass,
NhlDEFAULT_APP,rlist);
}
if (!strcmp(wks_type,"ps") || !strcmp(wks_type,"PS") ||
!strcmp(wks_type,"pdf") || !strcmp(wks_type,"PDF")) {
/*
* Create a PS or PDF CairoWorkstation object.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkFileName,"xy01c");
NhlRLSetString(rlist,NhlNwkFormat,(char*)wks_type);
NhlCreate(&xworkid,"xy01Work",NhlcairoDocumentWorkstationClass,
NhlDEFAULT_APP,rlist);
}
if (!strcmp(wks_type,"png") || !strcmp(wks_type,"PNG")) {
/*
* Create a PNG cairoImageWorkstation object.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkFileName,"xy01c");
NhlRLSetString(rlist,NhlNwkFormat,(char*)wks_type);
NhlCreate(&xworkid,"xy01Work",NhlcairoImageWorkstationClass,
NhlDEFAULT_APP,rlist);
}
/*
* Define the data object. Since only the Y values are specified here,
* each Y value will be paired with its integer array index. The id
* for this object will later be used as the value for the XyPlot data
* resource, "xyCoordData".
*/
NhlRLClear(rlist);
NhlRLSetFloatArray(rlist,NhlNcaYArray,ydra,NhlNumber(ydra));
NhlCreate(&dataid,"xyData",NhlcoordArraysClass,NhlDEFAULT_APP,
rlist);
/*
* Create the XyPlot object which is created as a child of the
* workstation object.
*/
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNxyCoordData,dataid);
NhlCreate(&plotid,"xyPlot",NhlxyPlotClass,xworkid,rlist);
/*
* Draw the plot.
*/
NhlDraw(plotid);
NhlFrame(xworkid);
/*
* NhlDestroy destroys the given id and all of its children
* so destroying "xworkid" will also destroy "plotid".
*/
NhlRLDestroy(rlist);
NhlDestroy(xworkid);
NhlDestroy(appid);
/*
* Restores state.
*/
NhlClose();
exit(0);
}
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