void heartbeat(struct reb_simulation* r){
if(reb_output_check(r, M_PI*2.)){
reb_output_timing(r, tmax);
}
if(reb_output_check(r, M_PI*2.*100.)){ // output every 100 years
FILE* f = fopen("a.txt","a");
const struct reb_particle* particles = r->particles;
const struct reb_particle planet = particles[1];
const double G = r->G;
const double t = r->t;
const int N = r->N;
for (int i=2;i<N;i++){
const struct reb_particle p = particles[i];
const double prx = p.x-planet.x;
const double pry = p.y-planet.y;
const double prz = p.z-planet.z;
const double pr = sqrt(prx*prx + pry*pry + prz*prz); // distance relative to star
const double pvx = p.vx-planet.vx;
const double pvy = p.vy-planet.vy;
const double pvz = p.vz-planet.vz;
const double pv = sqrt(pvx*pvx + pvy*pvy + pvz*pvz); // distance relative to star
const double a = -G*planet.m/( pv*pv - 2.*G*planet.m/pr ); // semi major axis
fprintf(f,"%e\t%e\n",t,a);
}
fclose(f);
}
}
void heartbeat(struct reb_simulation* r){
if(reb_output_check(r, 20.*M_PI)){ // outputs to the screen
reb_output_timing(r, tmax);
}
if(reb_output_check(r, 12.)){ // outputs to a file
reb_output_orbits(r, "orbits.txt");
}
}
void heartbeat(struct reb_simulation* r){
if(reb_output_check(r,tmax/10000.)){ // outputs to the screen
reb_output_timing(r, tmax);
}
// Output the time and the current timestep. Plot it to see how IAS15 automatically reduces the timestep at pericentre.
FILE* of = fopen("timestep.txt","a");
fprintf(of,"%e\t%e\t\n",r->t/tmax,r->dt/tmax);
fclose(of);
}
void heartbeat(struct reb_simulation* const r) {
if (reb_output_check(r, 1e-3 * 2. * M_PI / r->ri_sei.OMEGA)) {
reb_output_timing(r, 0);
//reb_output_append_velocity_dispersion("veldisp.txt");
}
if (reb_output_check(r, 2. * M_PI / r->ri_sei.OMEGA)) {
//reb_output_ascii("position.txt");
}
}
void heartbeat(struct reb_simulation* r){
if(reb_output_check(r, 20.*M_PI)){
reb_output_timing(r, tmax);
}
if(reb_output_check(r, 40.)){
reb_integrator_synchronize(r);
reb_output_orbits(r,"orbits.txt");
reb_move_to_com(r);
}
}
void heartbeat(struct reb_simulation* r){
if (reb_output_check(r, 10000.)){
reb_output_timing(r, tmax);
reb_integrator_synchronize(r);
FILE* f = fopen("energy.txt","a");
double e = reb_tools_energy(r);
fprintf(f,"%e %e\n",r->t, fabs((e-e_init)/e_init));
fclose(f);
}
}
void heartbeat(struct reb_simulation* const r){
// Output some information to the screen every 100th timestep
if(reb_output_check(r, 100.*r->dt)){
reb_output_timing(r, tmax);
}
// Output the particle position to a file every timestep.
const struct reb_particle* const particles = r->particles;
FILE* f = fopen("r.txt","a");
fprintf(f,"%e\t%e\t%e\n",r->t,particles[0].x, particles[1].vx);
fclose(f);
}
void heartbeat(struct reb_simulation* const r){
if (reb_output_check(r, 1000.*r->dt)){
reb_output_timing(r, tmax);
}
if (reb_output_check(r, 362.)){
// Output the time and the MEGNO to the screen and a file.
FILE* f = fopen("Y.txt","a+");
fprintf(f," %.20e %.20e\n",r->t, reb_tools_calculate_megno(r));
//printf(" %.20e %.20e\n",r->t, reb_tools_calculate_megno(r));
fclose(f);
}
}
void heartbeat(struct reb_simulation* r){
if (reb_output_check(r, 10.*2.*M_PI)){
reb_output_timing(r, 0);
}
if (reb_output_check(r, 2.*M_PI)){
// Once per year, output the relative energy error to a text file
FILE* f = fopen("energy.txt","a");
reb_integrator_synchronize(r);
double e = reb_tools_energy(r);
fprintf(f,"%e %e\n",r->t, fabs((e-e_init)/e_init));
fclose(f);
}
}
void heartbeat(struct reb_simulation* r){
if(reb_output_check(r, 4000.*r->dt)){ // output something to screen
reb_output_timing(r, tmax);
}
if(reb_output_check(r,M_PI*2.*0.01)){ // output semimajor axis to file
FILE* f = fopen("a.txt","a");
const struct reb_particle planet = r->particles[0];
const int N = r->N;
for (int i=1;i<N;i++){
struct reb_orbit o = reb_tools_particle_to_orbit(r->G, r->particles[i],planet);
fprintf(f,"%.15e\t%.15e\t%.15e\t%.15e\n",r->t,o.a,o.e,o.omega);
}
fclose(f);
}
}
void heartbeat(struct reb_simulation* r){
if (reb_output_check(10.0*dt)) reb_output_timing();
if (reb_output_check(1.)) reb_output_ascii("ascii.txt");
}
void heartbeat(struct reb_simulation* r){
if (reb_output_check(r, 20.*M_PI)){
reb_output_timing(r, 0);
reb_output_orbits(r, "orbit.txt");
}
}
void heartbeat(struct reb_simulation* const r){
if (reb_output_check(r,10.0*r->dt)){
reb_output_timing(r,0);
}
}
void heartbeat(struct reb_simulation* r){
if (reb_output_check(r, 10.*2.*M_PI)){
reb_output_timing(r, 0);
}
}
void heartbeat(struct reb_simulation* const r) {
if (reb_output_check(r, 10000000.)) {
reb_output_timing(r, tmax);
}
}