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

int main()
{
  picture(P(-2,-1), P(2,1), "2 x 1in");

  begin();
  double mm(3), ht(1);
  P pA(0, 0), pAp(ht/mm, ht),
    pB(xmax(), 0), pC(xmin(), 0),
    pBp(xmax(), ht), pCp(xmin(), ht),
    pg(0.5*(pA + pB)), pgp(0.5*(pAp + pBp)),
    ph(-ht/mm, -ht);

  bold();
  line(pB, pC);
  line(pBp, pCp);
  line(ph, 2*pAp);

  label(pA,  P(4, 2), "$A$", tr);
  label(pAp, P(4, 2), "$A'$", tr);

  label(pB, P(0, 2), "$B$", t);
  label(pC, P(0, 2), "$C$", tr);

  label(pBp, P(0, 2), "$B'$", t);
  label(pCp, P(0, 2), "$C'$", tr);

  label(ph, P(4, 0), "$h$", r);

  label(pg, P(0,-4), "$g$", b);
  label(pgp, P(0,-4), "$g'$", b);

  label(P(0.5*(xmin() + xmax()), ymin()), P(0, -12), "\\textsc{Fig.~3.}", b);

  tikz_format();
  end();
}