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GnuPlotter.cpp

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// This plotting program courtesy of M. Rauscher, modifications by K. S. Brown
#include <typeinfo>
#include <math.h>
#include <iostream>
#include <assert.h>
#ifdef _WIN32
#include <windows.h>
#endif //_WIN32
#include "GnuPlotter.h"
#include <string>
#include <stdlib.h>
using namespace std;

GnuPlotter::GnuPlotter(void) : Observer(), buffername(NULL), gnuplot_pipe(NULL), buffer(NULL)
{
        strcpy(title, "");
#ifdef _WIN32
                //gnuplot on dopey.lassp.cornell.edu
                gnuplot_pipe = _popen("C:\\Progra~1\\Gnuplot3.7\\pgnuplot.exe", "w");
                //SendPlotCommand("set terminal windows \"Helvetica\" 18\n");
#else
        #ifdef _DEBUG
                char name[128];
                sprintf(name, "tee gnuplot.protocol%d |  gnuplot -geometry 480x360", (int)this);
                gnuplot_pipe = popen(name, "w");
        #else
                gnuplot_pipe = popen("gnuplot -geometry 480x360", "w");
        #endif // _DEBUG
#endif // _WIN32
        if (gnuplot_pipe==NULL) {
                cout << "GnuPlotter::GnuPlotter(): Gnuplot couldn't be opened!" << endl;
                exit(-1);
        }
#ifdef _WIN32
        buffername=tempnam(NULL, "gnuplotter");
        if (buffername==NULL) {
                cout << "GnuPlotter::GnuPlotter(): Buffername couldn't be created!" << endl;
                exit(-1);
        }
        buffer=fopen(buffername, "w");
#else
        strcpy(buffnamevalue, "plots/gnuplotterXXXXXX");
        buffername = buffnamevalue;
        buffattempt=mkstemp(buffername);
        if (buffattempt==-1) {
                cout << "GnuPlotter::GnuPlotter(): Buffername couldn't be created!" << endl;
                exit(-1);
        }
        buffer=fdopen(buffattempt, "w");
#endif
        if (buffer==NULL) {
                cout << "GnuPlotter::GnuPlotter(): Buffer couldn't be created!" << endl;
                exit(-1);
        }
}

GnuPlotter::GnuPlotter(FILE * gplotpipe) : Observer(), buffername(NULL), gnuplot_pipe(gplotpipe)
{
    #ifdef _DEBUG
                assert(gnuplot_pipe!=NULL);
        #endif //_DEBUG
#ifdef _WIN32
        buffername=tempnam(NULL, "gnuplotter");
        if (buffername==NULL) {
                cout << "GnuPlotter::GnuPlotter(): Buffername couldn't be created!" << endl;
                exit(-1);
        }
        buffer=fopen(buffername, "w");
#else
        strcpy(buffnamevalue, "plots/gnuplotterXXXXXX");
        buffername = buffnamevalue;
        buffattempt = mkstemp(buffername);
        if (buffattempt==-1) {
                cout << "GnuPlotter::GnuPlotter(): Buffername couldn't be created!" << endl;
                exit(-1);
        }
        buffer=fdopen(buffattempt, "w");
#endif
        if (buffer==NULL) {
                cout << "GnuPlotter::GnuPlotter(): Buffer couldn't be created!" << endl;
                exit(-1);
        }

}

GnuPlotter::~GnuPlotter(void) { 
        if (gnuplot_pipe!=NULL) {
                //cout << "GnuPlotter::~GnuPlotter()" << endl;
                #ifdef _WIN32
                        _pclose(gnuplot_pipe);
                #else
                        pclose(gnuplot_pipe); 
                #endif //_WIN32
        }
        if (buffer!=NULL) fclose(buffer);

}

bool GnuPlotter::SendPlotCommand(const char* commandstring)
{
        if (gnuplot_pipe!=NULL) {
                fprintf(gnuplot_pipe, "%s", commandstring);
                FlushGnuPlotter();
                return(true);
        }
        else return(false);
}

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