/usr/share/ncarg/hluex/xyplot/xy15c.c is in libncarg-data 6.4.0-9.
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* $Id: xy15c.c,v 1.6 2010-03-15 22:49:25 haley Exp $
*/
/************************************************************************
* *
* Copyright (C) 1995 *
* University Corporation for Atmospheric Research *
* All Rights Reserved *
* *
***********************************************************************/
/*
* File: xy15c.c
*
* Author: David Brown
* National Center for Atmospheric Research
* PO 3000, Boulder, Colorado
*
* Date: Fri Jun 30 14:11:32 MDT 1995
*
* Description:
* This example illustrates the creation of a set of 4
* of 'stacked' XyPlots. Each plot has the same X axis.
* By making the top 3 plots into annotations of the
* bottom plot, all four plots can be manipulated as
* a unit. To demonstrate this concept the second frame sets
* the viewport of the base plot. Because all the annotations
* have their "amResizeNotify" resource set to true (in the
* resource file), all the annotation plots resize themselves
* proportionally to the change in the size of the base plot.
* Each plot draws a variation of sinusoidal curve.
*/
#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 each curve.
*/
#define NPTS 500
#define PI100 0.031415926535898
float ydra1[NPTS];
float ydra2[NPTS];
float ydra3[NPTS];
float ydra4[NPTS];
int main()
{
int appid,xworkid;
int dataid1,dataid2,dataid3,dataid4;
int xy1, xy2, xy3, xy4;
int am2, am3, am4;
int rlist, i;
float theta;
char const *wks_type = "x11";
/*
* Initialize data for the XyPlot object.
*/
for( i = 0; i < NPTS; i++ ) {
theta = PI100*(float)(i);
ydra1[i] = sin(theta);
ydra2[i] = sin(theta * theta);
ydra3[i] = sin(exp(theta));
ydra4[i] = sin(3*sqrt(fabs(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 "xy15.res" in
* this case.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNappDefaultParent,"True");
NhlRLSetString(rlist,NhlNappUsrDir,"./");
NhlCreate(&appid,"xy15",NhlappClass,NhlDEFAULT_APP,rlist);
if (!strcmp(wks_type,"ncgm") || !strcmp(wks_type,"NCGM")) {
/*
* Create a meta file object.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkMetaName,"./xy15c.ncgm");
NhlCreate(&xworkid,"xy15Work",NhlncgmWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"x11") || !strcmp(wks_type,"X11")) {
/*
* Create an X11 workstation.
*/
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNwkPause,True);
NhlCreate(&xworkid,"xy15Work",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,"./xy15c.ps");
NhlCreate(&xworkid,"xy15Work",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,"./xy15c.pdf");
NhlCreate(&xworkid,"xy15Work",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,"./xy15c");
NhlRLSetString(rlist,NhlNwkFormat, (char*)wks_type);
NhlCreate(&xworkid,"xy15Work",NhlcairoDocumentWorkstationClass,
NhlDEFAULT_APP,rlist);
}
else if (!strcmp(wks_type,"png") || !strcmp(wks_type,"PNG")) {
/*
* Create a cairo PNG workstation.
*/
NhlRLClear(rlist);
NhlRLSetString(rlist,NhlNwkFileName,"./xy15c");
NhlRLSetString(rlist,NhlNwkFormat, (char*)wks_type);
NhlCreate(&xworkid,"xy15Work",NhlcairoImageWorkstationClass,
NhlDEFAULT_APP,rlist);
}
/*
* Define 4 separate CoordArrays objects - one for each XYPlot.
*/
NhlRLClear(rlist);
NhlRLSetFloatArray(rlist,NhlNcaYArray,&ydra1[0],NPTS);
NhlCreate(&dataid1,"xyData1",NhlcoordArraysClass,NhlDEFAULT_APP,
rlist);
NhlRLClear(rlist);
NhlRLSetFloatArray(rlist,NhlNcaYArray,&ydra2[0],NPTS);
NhlCreate(&dataid2,"xyData2",NhlcoordArraysClass,NhlDEFAULT_APP,
rlist);
NhlRLClear(rlist);
NhlRLSetFloatArray(rlist,NhlNcaYArray,&ydra3[0],NPTS);
NhlCreate(&dataid3,"xyData3",NhlcoordArraysClass,NhlDEFAULT_APP,
rlist);
NhlRLClear(rlist);
NhlRLSetFloatArray(rlist,NhlNcaYArray,&ydra4[0],NPTS);
NhlCreate(&dataid4,"xyData4",NhlcoordArraysClass,NhlDEFAULT_APP,
rlist);
/*
* Create 4 XyPlot objects.
*/
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNxyCoordData,dataid1);
NhlRLSetFloat(rlist,NhlNvpYF,0.3);
NhlCreate(&xy1,"xy1",NhlxyPlotClass,xworkid,rlist);
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNxyCoordData,dataid2);
NhlCreate(&xy2,"xy2",NhlxyPlotClass,xworkid,rlist);
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNxyCoordData,dataid3);
NhlCreate(&xy3,"xy3",NhlxyPlotClass,xworkid,rlist);
NhlRLClear(rlist);
NhlRLSetInteger(rlist,NhlNxyCoordData,dataid4);
NhlCreate(&xy4,"xy4",NhlxyPlotClass,xworkid,rlist);
am2 = NhlAddAnnotation(xy1,xy2);
am3 = NhlAddAnnotation(xy1,xy3);
am4 = NhlAddAnnotation(xy1,xy4);
/*
* Draw the plot.
*/
NhlDraw(xy1);
NhlFrame(xworkid);
/*
* Now set the viewport of the base plot only; redrawing the base plot
* causes all the other plots to be redrawn as well. Notice that they
* are all resized and repositioned to match the new size and position
* of the base plot. The whole assemblage functions as a single
* composite plot object.
*/
NhlRLClear(rlist);
NhlRLSetFloat(rlist,NhlNvpWidthF,0.65);
NhlRLSetFloat(rlist,NhlNvpXF,0.25);
NhlRLSetFloat(rlist,NhlNvpYF,0.4);
NhlRLSetFloat(rlist,NhlNvpHeightF,0.16);
NhlSetValues(xy1,rlist);
NhlDraw(xy1);
NhlFrame(xworkid);
/*
* Destroy the resource list.
* The workstation, all the plots, and the data objects are all
* descended from the App object, so it is only necessary to
* destroy the App object in order to destroy all the objects created
* in this example.
*/
NhlRLDestroy(rlist);
NhlDestroy(appid);
/*
* Restores state.
*/
NhlClose();
exit(0);
}
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