/* -*-ePiX-*- */
#include "epix.h"
using namespace ePiX;

int main()
{
  picture(P(0,0), P(1,1), "1.75 x 1.75in");

  begin();

  label(P(0.5, -0.125), P(0,-4), "\\textsc{Fig.~2.}", b);

  /*
  arrow_inset(0.5);
  arrow_width(5);
  arrow_ratio(2.5);
  */

  bold();
  P O(0,0), pt1(0.35,0.45), pt2(0.8,0.75), M(pt2.x1(), pt1.x2());

  line(pt1, pt2);
  line(O, P(xmax()));
  line(O, P(0,ymax()));

  dashed();
  line(P(0,pt1.x2()), M);
  line(P(0,pt2.x2()), pt2);

  line(P(pt2.x1()), pt2);
  line(P(pt1.x1()), pt1);

  font_size("footnotesize");
  label(O, P(-4,-4), "$O$", bl);
  label(P(xmax()), P(0,-4), "$x$", b);
  label(P(pt1.x1()), P(0,-4), "$X_1$", b);
  label(P(pt2.x1()), P(0,-4), "$X_2$", b);

  label(P(0,ymax()), P(-4), "$y$", l);
  label(P(0,pt1.x2()), P(-4), "$Y_1$", l);
  label(P(0,pt2.x2()), P(-4), "$Y_2$", l);

  label(M, P(4), "$M$", r);
  label(pt1, P(-2,4), "$P_1$", tl);
  label(pt2, P(4), "$P_2$", r);

  tikz_format();
  end();
}