/usr/share/ncarg/hluex/xyplot/xy03c.c is in libncarg-data 6.4.0-9.
This file is owned by root:root, with mode 0o644.
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** $Id: xy03c.c,v 1.17 2010-03-15 22:49:25 haley Exp $
*/
/***********************************************************************
* *
* Copyright (C) 1995 *
* University Corporation for Atmospheric Research *
* All Rights Reserved *
* *
***********************************************************************/
/*
** File: xy03c.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
** with some of the XyPlot line resources tweaked. A
** resource file is used to changed the resources.
** This program uses the same Y-axis dataset as the
** example "xy02", but this time values for the X
** axis are specified, changing the look of the plot.
**
** 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 i, rlist;
ng_size_t len[2];
float xdra[NPTS],ydra[NPTS], theta;
float cmap[4][3];
char const *wks_type = "x11";
/*
* Initialize some data for the XyPlot object.
*/
for( i = 0; i < NPTS; i++ ) {
theta = PI100*(float)(i);
xdra[i] = 500.+.9*(float)(i)*cos(theta);
ydra[i] = 500.+.9*(float)(i)*sin(theta);
}
/*
* Initialize the HLU library and set up resource template.
*/
NhlInitialize();
rlist = NhlRLCreate(NhlSETRL);
/*
* Modify the color map. Color indices '0' and '1' are the background
* and foreground colors respectively.
*/
cmap[0][0] = cmap[0][1] = cmap[0][2] = 0.;
cmap[1][0] = cmap[1][1] = cmap[1][2] = 1.;
cmap[2][0] = 0.; cmap[2][1] = .5; cmap[2][2] = 1.;
cmap[3][0] = 0.; cmap[3][1] = 1.; cmap[3][2] = 0.;
len[0] = 4; len[1] = 3;
/*
* Create Application object. The Application object name is used to
* determine the name of the resource file, which is "xy03.res" in
* this case.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNappDefaultParent,"True");
NhlRLSetString(rlist,NhlNappUsrDir,"./");
NhlCreate(&appid,"xy03",NhlappClass,NhlDEFAULT_APP,rlist);
if (!strcmp(wks_type,"ncgm") || !strcmp(wks_type,"NCGM")) {
/*
* Create a meta file object.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkMetaName,"./xy03c.ncgm");
NhlRLSetMDFloatArray(rlist,NhlNwkColorMap,&cmap[0][0],2,len);
NhlCreate(&xworkid,"xy03Work",NhlncgmWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"x11") || !strcmp(wks_type,"X11")) {
/*
* Create an X11 workstation.
*/
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNwkPause,True);
NhlRLSetMDFloatArray(rlist,NhlNwkColorMap,&cmap[0][0],2,len);
NhlCreate(&xworkid,"xy03Work",NhlcairoWindowWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"oldps") || !strcmp(wks_type,"OLDPS")) {
/*
* Create an older-style PostScript workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkPSFileName,"./xy03c.ps");
NhlRLSetMDFloatArray(rlist,NhlNwkColorMap,&cmap[0][0],2,len);
NhlCreate(&xworkid,"xy03Work",NhlpsWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"oldpdf") || !strcmp(wks_type,"OLDPDF")) {
/*
* Create an older-style PDF workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkPDFFileName,"./xy03c.pdf");
NhlRLSetMDFloatArray(rlist,NhlNwkColorMap,&cmap[0][0],2,len);
NhlCreate(&xworkid,"xy03Work",NhlpdfWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"pdf") || !strcmp(wks_type,"PDF") ||
!strcmp(wks_type,"ps") || !strcmp(wks_type,"PS")) {
/*
* Create a cairo PS/PDF workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkFileName,"./xy03c");
NhlRLSetString(rlist,NhlNwkFormat, (char*)wks_type);
NhlRLSetMDFloatArray(rlist,NhlNwkColorMap,&cmap[0][0],2,len);
NhlCreate(&xworkid,"xy03Work",NhlcairoDocumentWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"png") || !strcmp(wks_type,"PNG")) {
/*
* Create a cairo PNG workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkFileName,"./xy03c");
NhlRLSetString(rlist,NhlNwkFormat, (char*)wks_type);
NhlRLSetMDFloatArray(rlist,NhlNwkColorMap,&cmap[0][0],2,len);
NhlCreate(&xworkid,"xy03Work",NhlcairoImageWorkstationClass,
NhlDEFAULT_APP,rlist);
}
/*
* Define the data object. The id for this object will later be used
* as the value for the XyPlot data resource, "xyCoordData".
*/
NhlRLClear(rlist);
NhlRLSetFloatArray(rlist,NhlNcaXArray,xdra,NhlNumber(xdra));
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
* Xworkstation object. The resources that are being changed are done
* in the "xy03.res" file.
*/
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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