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/* -*-ePiX-*- */
#include "epix.h"
using namespace ePiX;
int main()
{
picture(P(-1,-1), P(1,1), "2 x 2in");
begin();
P pP(polar(0.5, M_PI/6)),
pB1(cis(2*M_PI/3)), pB2(cis(-M_PI_2));
Segment lB(pB1, pB2);
P pA(lB.midpoint(0.15)), pA1(lB.midpoint()), pA2(lB.midpoint(0.8)),
pg0(lB.midpoint(0.325)), pg(pg0 + polar(0.5, -1.2*M_PI_2));
label(pB1, P(-2, 2), "$B_{1}$", t);
label(pB2, P( 2,-4), "$B_{2}$", b);
label(cis(-0.1), P(2, 0), "$U$", br);
bold();
crop_ellipse();
lB.draw();
Line(pg0, pg);
for (int i=-3; i <= 1; ++i)
Line(pP, pP + cis(M_PI_2 + i*M_PI/14));
plain();
circle();
circ(pA, P(-2, -2), "$A$", bl);
circ(pA1, P(-2, -2), "$A'$", bl);
circ(pA2, P(-2, -2), "$A''$", bl);
circ(pP, P(4, 0), "$P$", r);
label(pg, P(-2, 0), "$g$", l);
label(P(0.5*(xmin() + xmax()), ymin()), P(0, -24), "\\textsc{Fig.~4.}", b);
tikz_format();
end();
}
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