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

P sw(776, 1790), ne(2999, 778);
double XSZ(5.5), YSZ(0.4); // Cartesian dimensions

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, 2240), Tr(3180, 140);
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, bool extend=false)
{
  P stem(P(0.5, 0.035));
  double scale(8.5 - 2*loc.x1()); // to put labels at 4.5 = (8.5+stem.x1())/2

  P elbow(loc + scale*stem);
  P tail(extend ? elbow+P(0.45) : 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, 0.4), 6, 4);
  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,YSZ), 4, P(-4,0), l);
  Ay.subdivide(2).tick_ratio(1).align(r).unmark(0.4).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,YSZ), 4);
  Ay2.subdivide(2).tick_ratio(1).align(l).draw_ticks();

  std::vector<P> data1, data2, data3, data4;
  data1.push_back(pt(775, 1768));
  data1.push_back(pt(875, 1790));
  data1.push_back(pt(975, 1790));
  data1.push_back(pt(1075, 1788));
  data1.push_back(pt(1175, 1783));
  data1.push_back(pt(1275, 1776));
  data1.push_back(pt(1375, 1761));
  data1.push_back(pt(1475, 1737));
  data1.push_back(pt(1575, 1699));
  data1.push_back(pt(1675, 1629));
  data1.push_back(pt(1775, 1523));
  data1.push_back(pt(1875, 1391));
  data1.push_back(pt(1975, 1270));

  data1.push_back(pt(2025, 1243)); // final common point
  data1.push_back(pt(2075, 1239));
  data1.push_back(pt(2175, 1349));
  data1.push_back(pt(2275, 1502));
  data1.push_back(pt(2375, 1621));
  data1.push_back(pt(2475, 1687));
  data1.push_back(pt(2575, 1732));
  data1.push_back(pt(2675, 1762));
  data1.push_back(pt(2775, 1777));
  data1.push_back(pt(2875, 1783));
  data1.push_back(pt(2975, 1787));

  data2.push_back(pt(2025, 1243)); // final common point
  data2.push_back(pt(2075, 1237));
  data2.push_back(pt(2175, 1317));
  data2.push_back(pt(2275, 1466));
  data2.push_back(pt(2375, 1620));
  data2.push_back(pt(2475, 1698));
  data2.push_back(pt(2575, 1745));
  data2.push_back(pt(2675, 1774));
  data2.push_back(pt(2775, 1784));
  data2.push_back(pt(2875, 1786));
  data2.push_back(pt(2975, 1787));

  data3.push_back(pt(2025, 1243)); // final common point
  data3.push_back(pt(2075, 1235));
  data3.push_back(pt(2175, 1268));
  data3.push_back(pt(2275, 1412));
  data3.push_back(pt(2375, 1610));
  data3.push_back(pt(2475, 1721));
  data3.push_back(pt(2575, 1769));
  data3.push_back(pt(2675, 1787));
  data3.push_back(pt(2775, 1787));

  data4.push_back(pt(2025, 1243)); // final common point
  data4.push_back(pt(2050, 1236));
  data4.push_back(pt(2075, 1229));
  data4.push_back(pt(2100, 1208));
  data4.push_back(pt(2125, 1164));
  data4.push_back(pt(2150, 1111));
  data4.push_back(pt(2175, 1048));
  data4.push_back(pt(2200, 1007));
  data4.push_back(pt(2225, 1025));
  data4.push_back(pt(2250, 1102));
  data4.push_back(pt(2275, 1328));
  data4.push_back(pt(2325, 1669));
  data4.push_back(pt(2375, 1763));
  data4.push_back(pt(2475, 1787));
  data4.push_back(pt(2575, 1787));
  data4.push_back(pt(2675, 1787));

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

  plain();
  key(pt(2190, 1370), "$1$", true);
  key(pt(2180, 1326), "$2$");
  key(pt(2178, 1272), "$3$", true);
  key(pt(2256, 1174), "$4$");
  crop();

  label(P(3.5), P(0,-4), "$\\rho$", b);
  label(P(2.75, 0), P(0,-18), // label set on two lines in orig; added period
	"\\textsc{Fig.~5} -- Spin-orbit form factor (derivative form). Tail variation.", b);

  label_angle(90);
  label(P(0, 0.2), P(-24,0), "\\Code{FFSR} and/or \\Code{FFSI}", l);
  deactivate(scr);

  //  inset(scr, P(1.125,0.5), P(8, 4.25));
  inset(scr, P(0.75,0.5), P(8, 4.25));

  // now draw rest of page
  label_angle(0);
  label(pic(1100, 312), P(0,0),
	"\\Code{R0 = 1.2},\\quad \\Code{A = 0.52},\\quad \\Code{FN1A = 3},\\quad \\Code{PMA = 1},\\quad $\\rho_{m_A} = \\bar{\\rho}_N = 3.24$", r);

  label(pic(1780, 260), P(0,0), "\\framebox{p - Cu\\quad $9.75$~\\MeV}", t);

  P lb(pic(1244, 372)), dY(pic(1244, 440) - lb);
  Circ(lb, "$1$");
  label(lb, P(12,0), "\\Code{FN2A = 0.01}", r);

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