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

P sw(776,1892), ne(2984,680);
double XSZ(5.5), YSZ(1.2); // Cartesian dimensions

// to screen
P pt(double x, double y)
{
  return P(XSZ*(x-sw.x1())/(ne.x1() - sw.x1()),
	   YSZ*(y-sw.x2())/(ne.x2() - sw.x2()));
}

P Bl(380, 2160), Tr(3180, 60);
// to picture
P pic(double x, double y)
{
  return P(8*(x-Bl.x1())/(Tr.x1() - Bl.x1()),
	   6*(y-Bl.x2())/(Tr.x2() - Bl.x2()));
}

void Circ(const P& loc, const std::string& msg)
{
  dot_size(16);
  circ(loc);
  label(loc, msg);
}

void key(const P& loc, const std::string& msg)
{
  P stem(P(0.5, 0.25));
  double scale(8.5 - 2*loc.x1());

  P elbow(loc + scale*stem), tail(elbow+P(0.25));
  line(elbow, tail);
  base(White(), 2.5);
  line(elbow, tail);
  base(Neutral(), 0);
  arrow(elbow, elbow-scale*0.99*stem);

  Circ(tail, msg);
}

int main()
{
  picture(P(0,0), P(8,6), "8 x 6in");

  begin();
  degrees();

  screen scr(P(0,0), P(XSZ, YSZ));
  activate(scr);

  grid(P(0,0), P(6, YSZ), 6, 3);
  bold();
  grid();

  axis Ax(P(0,0), P(5,0), 5, P(0,-4), b);
  Ax.subdivide(2).tick_ratio(1).align(t).draw();

  axis Ay(P(0,0), P(0,1), 5, P(-4,0), l);
  Ay.align(r).draw();

  axis Ax2(P(0,YSZ), P(5,YSZ), 5);
  Ax2.subdivide(2).tick_ratio(1).align(b).draw_ticks();

  axis Ay2(P(XSZ,0), P(XSZ, 1), 5);
  Ay2.align(l).draw_ticks();

  std::vector<P> data1, data2, data3, data4;
  data1.push_back(pt(775, 883));
  data1.push_back(pt(875, 883));
  data1.push_back(pt(975, 883));
  data1.push_back(pt(1075, 884));
  data1.push_back(pt(1175, 886));
  data1.push_back(pt(1275, 888));
  data1.push_back(pt(1375, 893));
  data1.push_back(pt(1475, 903));
  data1.push_back(pt(1575, 915));
  data1.push_back(pt(1675, 944));
  data1.push_back(pt(1775, 998));
  data1.push_back(pt(1875, 1089));
  data1.push_back(pt(1975, 1225));
  data1.push_back(pt(2075, 1405)); // final common point

  data1.push_back(pt(2125, 1505));
  data1.push_back(pt(2175, 1573));
  data1.push_back(pt(2275, 1693));
  data1.push_back(pt(2375, 1777));
  data1.push_back(pt(2475, 1829));
  data1.push_back(pt(2575, 1860));
  data1.push_back(pt(2675, 1882));
  data1.push_back(pt(2775, 1893));
  data1.push_back(pt(2875, 1895));
  data1.push_back(pt(2975, 1896));

  data2.push_back(pt(1975, 1225));
  data2.push_back(pt(2075, 1409));
  data2.push_back(pt(2125, 1507));
  data2.push_back(pt(2175, 1576));
  data2.push_back(pt(2275, 1710));
  data2.push_back(pt(2375, 1800));
  data2.push_back(pt(2475, 1851));
  data2.push_back(pt(2575, 1878));
  data2.push_back(pt(2675, 1892));
  data2.push_back(pt(2775, 1895));
  data2.push_back(pt(2875, 1896));

  data3.push_back(pt(1975, 1225));
  data3.push_back(pt(2075, 1409));
  data3.push_back(pt(2125, 1508));
  data3.push_back(pt(2175, 1597));
  data3.push_back(pt(2275, 1746));
  data3.push_back(pt(2375, 1841));
  data3.push_back(pt(2475, 1882));
  data3.push_back(pt(2575, 1895));
  data3.push_back(pt(2675, 1896));

  data4.push_back(pt(1975, 1225));
  data4.push_back(pt(2075, 1409));
  data4.push_back(pt(2125, 1519));
  data4.push_back(pt(2175, 1667));
  data4.push_back(pt(2275, 1861));
  data4.push_back(pt(2375, 1892));
  data4.push_back(pt(2475, 1896));

  spline(data1, 12);
  spline(data2, 12);
  spline(data3, 12);
  spline(data4, 12);

  plain();
  key(pt(2288, 1706), "$1$");
  key(pt(2305, 1742), "$2$");
  key(pt(2314, 1789), "$3$");
  key(pt(2292, 1873), "$4$");
  crop();

  label(P(1.5), P(0,-4), "$\\rho$", b);
  label(P(2.75, 0), P(0,-18), // added period
	"\\textsc{Fig.~2} -- Central form factors, tail variation.", b);

  label_angle(90);
  label(P(0, 0.6), P(-24,0), "\\Code{FFCR} and/or \\Code{FFCI}", l);
  deactivate(scr);

  inset(scr, P(1.125,0.5), P(8, 4.25));

  // now draw rest of page
  label_angle(0);
  label(pic(1004, 220), P(0,0),
	"\\Code{R0 = 1.2},\\quad \\Code{A = 0.52},\\quad \\Code{HA = 0},\\quad \\Code{FN1A = 1},\\quad $\\rho_{m_A} = \\bar{\\rho}_N = 3.24$", r);

  label(pic(1700, 160), P(0,0), "\\framebox{p - Cu\\quad $9.75$~\\MeV}", t);

  P lb(pic(1232, 304)), dY(pic(1232, 364) - lb);
  Circ(lb, "$1$");
  label(lb, P(12,0), "\\Code{FN2A = 0.01}", r);

  lb += dY;
  Circ(lb, "$2$");
  // Capitalize Standard
  label(lb, P(12,0), "\\Code{FN2A = 1}\\qquad(Standard form factor)", r);

  lb += dY;
  Circ(lb, "$3$");
  label(lb, P(12,0), "\\Code{FN2A = 3}", r);

  lb += dY;
  Circ(lb, "$4$");
  label(lb, P(12,0), "\\Code{FN2A = 10}", r);

  tikz_format();
  end();
}