230 Introduction to C++ Programming and Graphics
...
//--- Prepare the graph:
...
//--- Draw axes:
...
//-----------------------------
if(Itry==1)
{
vexit();
goto again;
};
//-----------------------------
cout << "Press p to print a postscript file" << endl;
cout << " any other key to finish" << endl;
kbd = char(getkey());
if(kbd ==āpā)
{
char outfile[1];
cout << " Please enter the name of the postscript file " <<endl;
cin >> outfile;
cout << "Please enter:" << endl << endl;
cout <<" 1 for a black/white plot" << endl;
cout <<" 2 for a black/white plot in portrait" << endl;
cout <<" 3 for a color plot" << endl;
cout <<" 4 for a color plot with background color" << endl;
cout <<" 5 for a color plot in portrait" << endl;
cout <<" 6 for a color plot in portrait with background color" << endl;
short Iplot;
cin >> Iplot;
voutput (outfile);
if(Iplot==1) vnewdev("postscript");
if(Iplot==2) vnewdev("ppostscript");
if(Iplot==3) vnewdev("cps");
if(Iplot==4) vnewdev("cps");
if(Iplot==5) vnewdev("pcps");
if(Iplot==6) vnewdev("pcps");
Itry = 1;
goto repeat;
}