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#include <TVector3.h>
#include <vector>
#include <TTree.h>
#include <string>
struct Photon {
double time;
TVector3 position;
TVector3 direction;
TVector3 polarization;
double wavelength; // nm
unsigned int history;
int last_hit_triangle;
};
struct Track {
std::string particle;
double time;
TVector3 position;
TVector3 direction;
double start_time;
double total_energy;
};
struct MC {
std::string particle;
TVector3 gen_position;
TVector3 gen_direction;
double gen_total_energy;
int nphoton;
std::vector<Track> subtrack;
std::vector<Photon> photon_start;
std::vector<Photon> photon_stop;
};
struct Channel {
Channel() : channel_id(-1), time(-9999.0), charge(-9999.0) { };
int channel_id;
double time;
double charge;
unsigned int mc_history;
};
struct Event {
int event_id;
MC mc;
int nhit;
std::vector<Channel> channel;
// Populate arrays of length nentries with hit, time, and charge
// information, indexed by channel ID
void get_channels(unsigned int nentries, int *hit, float *time,
float *charge)
{
for (unsigned int i=0; i < nentries; i++) {
hit[i] = 0;
time[i] = -1e9f;
charge[i] = -1e9f;
}
for (unsigned int i=0; i < channel.size(); i++) {
unsigned int channel_id = channel[i].channel_id;
if (channel_id < nentries) {
hit[channel_id] = 1;
time[channel_id] = channel[i].time;
charge[channel_id] = channel[i].charge;
}
}
}
};
void fill_photons(Event *ev, bool start,
unsigned int nphotons, float *pos, float *dir,
float *pol, float *wavelength, float *t0,
int *histories=0, int *last_hit_triangle=0)
{
std::vector<Photon> &photons = start ? ev->mc.photon_start : ev->mc.photon_stop;
photons.resize(nphotons);
for (unsigned int i=0; i < nphotons; i++) {
Photon &photon = photons[i];
photon.time = t0[i];
photon.position.SetXYZ(pos[3*i], pos[3*i + 1], pos[3*i + 2]);
photon.direction.SetXYZ(dir[3*i], dir[3*i + 1], dir[3*i + 2]);
photon.polarization.SetXYZ(pol[3*i], pol[3*i + 1], pol[3*i + 2]);
photon.wavelength = wavelength[i];
if (histories)
photon.history = histories[i];
else
photon.history = 0;
if (last_hit_triangle)
photon.last_hit_triangle = last_hit_triangle[i];
else
photon.last_hit_triangle = -1;
}
}
void fill_hits(Event *ev, unsigned int nchannels, float *time,
float *charge, unsigned int *history)
{
ev->channel.resize(0);
ev->nhit = 0;
Channel ch;
for (unsigned int i=0; i < nchannels; i++) {
if (time[i] < 1e8) {
ev->nhit++;
ch.channel_id = i;
ch.time = time[i];
ch.charge = charge[i];
ch.mc_history = history[i];
ev->channel.push_back(ch);
}
}
}
#ifdef __MAKECINT__
#pragma link C++ class vector<Track>;
#pragma link C++ class vector<Photon>;
#pragma link C++ class vector<Channel>;
#endif
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