DEFINE COMPONENT MyPSD_monitor
DEFINITION PARAMETERS (nx=90, ny=90, restore_neutron=0)
SETTING PARAMETERS (string filename=0, xmin=-0.05, xmax=0.05, ymin=-0.05, ymax=0.05, xwidth=0, yheight=0)
OUTPUT PARAMETERS (PSD_N, PSD_p, PSD_p2)
STATE PARAMETERS (x,y,z,vx,vy,vz,t,s1,s2,p,dddd)

DECLARE
  %{
    double PSD_N[nx][ny];
    double PSD_p[nx][ny];
    double PSD_p2[nx][ny];
  %}
INITIALIZE
  %{
    int i,j;

    if (xwidth  > 0) { xmax = xwidth/2;  xmin = -xmax; }
    if (yheight > 0) { ymax = yheight/2; ymin = -ymax; }

    if ((xmin >= xmax) || (ymin >= ymax)) {
            printf("PSD_monitor: %s: Null detection area !\n"
                   "ERROR        (xwidth,yheight,xmin,xmax,ymin,ymax). Exiting",
           NAME_CURRENT_COMP);
      exit(0);
    }

    for (i=0; i<nx; i++)
     for (j=0; j<ny; j++)
     {
      PSD_N[i][j] = 0;
      PSD_p[i][j] = 0;
      PSD_p2[i][j] = 0;
     }
  %}
TRACE
  %{
    int i,j;

    PROP_Z0;
    if (x>xmin && x<xmax && y>ymin && y<ymax)
    {
      i = floor((x - xmin)*nx/(xmax - xmin));
      j = floor((y - ymin)*ny/(ymax - ymin));
      PSD_N[i][j]++;
      PSD_p[i][j] += dddd;
      PSD_p2[i][j] += p*p;
      SCATTER;
    }
  %}
  
  
SAVE
  %{
    int i,j;
    for (i=0; i<nx; i++)
     for (j=0; j<ny; j++)
     {
      //PSD_N[i][j] = PSD_N[i][j]/ PSD_p[i][j];
     }
  
    DETECTOR_OUT_2D(
        "MyPSD monitor",
        "X position [cm]",
        "Y position [cm]",
        xmin*100.0, xmax*100.0, ymin*100.0, ymax*100.0,
        nx, ny,
        &PSD_N[0][0],&PSD_p[0][0],&PSD_p2[0][0],
        filename);
  %}

MCDISPLAY
%{
  magnify("xy");
  multiline(5, (double)xmin, (double)ymin, 0.0,
               (double)xmax, (double)ymin, 0.0,
               (double)xmax, (double)ymax, 0.0,
               (double)xmin, (double)ymax, 0.0,
               (double)xmin, (double)ymin, 0.0);
%}

END