/* Demonstrates multiple windows */

#include <stdio.h>
#include <math.h>

main()
{
      int i,j;
      float vmin,vmax;
      char text[3];

/* Divide screen into 16 regions */

      plstar(4,4);
      plschr(0.0,3.5);
      plfont(4);

      for (i=0; i<=15; i++) {
        sprintf(text,"%d",i);
        pladv(0);
        vmin = 0.1;
        vmax = 0.9;
        for (j=0; j<=2; j++) {
          plvpor(vmin,vmax,vmin,vmax);
          plwind(0.0,1.0,0.0,1.0);
          plbox("bc",0.0,0,"bc",0.0,0);
          vmin = vmin + 0.1;
          vmax = vmax - 0.1;
        }
        plptex(0.5,0.5,1.0,0.0,0.5,text);
      }

      plend();
}