EditorState *
initialize(int *argc, char **argv[]) {
gtk_init(argc, argv);
FileContainer* file_container = read_file((*argv)[1]);
load_css("/home/lee/dev/src/tyreese/styles/style.css");
/* INITIALIZE COMPONENTS */
GtkWidget *main_window = init_window(file_container);
GtkBox *horizontal_box = init_box(GTK_ORIENTATION_HORIZONTAL, TRUE);
GtkBox *vertical_box = init_box(GTK_ORIENTATION_VERTICAL, FALSE);
GtkEntry *tag = init_tag();
GtkContainer *scroll_container = GTK_CONTAINER(init_scroll_container());
GtkSourceBuffer *source_buffer = init_buffer(file_container);
GtkSourceView *source_view = init_buffer_view(source_buffer);
GtkSourceSearchSettings *search_settings = gtk_source_search_settings_new();
gtk_source_search_settings_set_regex_enabled (search_settings, TRUE);
/* PACK COMPONENTS */
gtk_container_add(scroll_container, GTK_WIDGET(source_view));
gtk_box_pack_start(vertical_box, GTK_WIDGET(tag), FALSE, FALSE, 0);
gtk_box_pack_start(vertical_box, GTK_WIDGET(scroll_container), TRUE, TRUE, 0);
gtk_widget_set_size_request(GTK_WIDGET(main_window), 480, 768-24);
gtk_box_pack_start(horizontal_box, GTK_WIDGET(vertical_box), TRUE, TRUE, 0);
gtk_container_add(GTK_CONTAINER(main_window), GTK_WIDGET(horizontal_box));
gtk_widget_grab_focus(GTK_WIDGET(source_view));
/* INITIALIZE EDITOR STATE */
EditorState *editor_state = malloc(sizeof(EditorState));
editor_state->root = main_window;
editor_state->view = source_view;
editor_state->buffer = source_buffer;
editor_state->search.settings = search_settings;
editor_state->search.context = NULL;
editor_state->mode = NO_MODE;
editor_state->tag = tag;
editor_state->fc = file_container;
/* BIND EVENTS */
g_signal_connect(editor_state->root, "destroy", G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect(editor_state->root, "key-press-event", G_CALLBACK(window_key_press), editor_state);
g_signal_connect(editor_state->tag, "key-press-event", G_CALLBACK(tag_key_press), editor_state);
return editor_state;
}
void problem_init(int argc, char* argv[]){
// Setup constants
dt = 1e-3;
boxsize = 3;
N_active = 1; // Only star is massive
init_box();
// Initial conditions
struct particle p; // Star
// The WH integrator assumes a heliocentric coordinate system.
// Therefore the star has to be at the origin.
p.x = 0; p.y = 0; p.z = 0;
p.vx = 0; p.vy = 0; p.vz = 0;
p.ax = 0; p.ay = 0; p.az = 0;
p.m = 1;
particles_add(p);
int _N = 100; // Number of test particles
if(argc>1){
_N = atoi(argv[1]);
}
const double shift = 0.0; // Change this number to put particles on eccetric orbits.
for(int n=0; n<_N; n++){
p.x = cos(2.*M_PI/(double)(_N)*(double)(n)) + shift;
p.y = sin(2.*M_PI/(double)(_N)*(double)(n));
p.z = 0;
p.vx = cos(2.*M_PI/(double)(_N)*(double)(n)+M_PI/2.);
p.vy = sin(2.*M_PI/(double)(_N)*(double)(n)+M_PI/2.);
p.vz = 0;
p.ax = 0; p.ay = 0; p.az = 0;
p.m = 0;
particles_add(p); // Test particle
}
}
void problem_init(int argc, char* argv[]){
// Setup constants
OMEGA = 1.;
OMEGAZ = 3.6;
dt = 2e-3*2.*M_PI/OMEGA;
double particle_r = 1;
double tau = 1.64;
coefficient_of_restitution = 0.5;
boxsize = 1;
root_nx = 200; root_ny = 5; root_nz = 20;
nghostx = 1; nghosty = 1; nghostz = 0;
init_box();
// Initial conditions
double _N = tau * boxsize_x * boxsize_y/(M_PI*particle_r *particle_r);
while (N<_N){
struct particle p;
p.x = ((double)rand()/(double)RAND_MAX-0.5)*boxsize_x;
p.y = ((double)rand()/(double)RAND_MAX-0.5)*boxsize_y;
p.z = 10.0*((double)rand()/(double)RAND_MAX-0.5)*particle_r;
p.vx = 0;
p.vy = -1.5*p.x*OMEGA;
p.vz = 0;
p.ax = 0; p.ay = 0; p.az = 0;
p.m = 1.;
p.r = particle_r;
particles_add(p);
}
}
//box *get_next_box(unsigned char *mem, long int *pos) {
box *get_next_box(FILE *fd) {
println_start(INFO);
//box *box = malloc(sizeof(box));
int read = 0;
box *box = init_box();
if( (box->lbox = read_bytes(box->lbox, fd, 4)) == NULL)
return NULL;
box->length = hex_to_long(box->lbox, 4);
if(box->length == 0) {
return NULL;
}
if( (box->tbox = read_bytes(box->tbox, fd, 4)) == NULL) {
println(INFO, "Corrupted JP2 file. Exitting.");
return NULL;
}
read = 8;
if(box->length == 1) { //there should be XLbox field present;
box->xlbox = (unsigned char*)malloc(9 * sizeof(char));
box->xlbox = read_bytes(box->xlbox, fd, 8);
box->length = hex_to_long(box->xlbox, 8);
read += 8;
}
box->content_length = box->length - read;
box->dbox = (unsigned char*)malloc((box->content_length + 1) * sizeof(char));
box->dbox = read_bytes(box->dbox, fd, box->content_length);
println_end(INFO);
return box;
}
void problem_init(int argc, char* argv[]){
// Setup constants
G = 1;
// Setup particles
int _N = 100; // Number of particles
double M = 1; // Total mass of the cluster
double R = 1; // Radius of the cluster
double E = 3./64.*M_PI*M*M/R; // Energy of the cluster
double r0 = 16./(3.*M_PI)*R; // Chacateristic length scale
double t0 = G*pow(M,5./2.)*pow(4.*E,-3./2.)*(double)_N/log(0.4*(double)_N); // Rellaxation time
printf("Characteristic size: %f\n", r0);
printf("Characteristic time (relaxation): %f\n", t0);
dt = 1e-4*t0; // timestep
tmax = 20.*t0; // Integration time
boxsize = 20.*r0; // Size of box (open boundaries)
softening = 0.01*r0; // Softening parameter
init_box(); // Set up box (uses variable 'boxsize')
tools_init_plummer(_N, M, R); // Add particles
tools_move_to_center_of_momentum(); // Move to rest frame
}
void problem_init(int argc, char* argv[]){
// Setup constants
G = 1; // Gravitational constant
#ifdef OPENGL
display_wire = 1; // show istantaneous orbits.
#endif // OPENGL
double e_testparticle = 1.-1e-7;
double mass_scale = 1.; // Some integrators have problems when changing the mass scale, IAS15 does not.
double size_scale = 1; // Some integrators have problems when changing the size scale, IAS15 does not.
boxsize = 25.*size_scale;
init_box();
struct particle star;
star.m = mass_scale;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
particles_add(star);
struct particle planet;
planet.m = 0;
planet.x = size_scale*(1.-e_testparticle); planet.y = 0; planet.z = 0;
planet.vx = 0; planet.vy = sqrt((1.+e_testparticle)/(1.-e_testparticle)*mass_scale/size_scale); planet.vz = 0;
particles_add(planet);
tools_move_to_center_of_momentum();
// initial timestep
dt = 1e-13*sqrt(size_scale*size_scale*size_scale/mass_scale);
tmax = 1e2*2.*M_PI*sqrt(size_scale*size_scale*size_scale/mass_scale);
}
void problem_init(int argc, char* argv[]){
// Setup constants
dt = 1e-3;
tmax = 10000;
boxsize = 3;
coefficient_of_restitution = 1; // elastic collisions
// Do not use any ghost boxes
nghostx = 0; nghosty = 0; nghostz = 0;
// Setup particle structures
init_box();
// Initial conditions
struct particle p;
p.x = 1; p.y = 1; p.z = 1;
p.vx = 0; p.vy = 0; p.vz = 0;
p.ax = 0; p.ay = 0; p.az = 0;
p.m = 1;
p.r = 0.1;
particles_add(p);
p.x = -1; p.y = -1; p.z = -1;
p.vx = 0; p.vy = 0; p.vz = 0;
p.ax = 0; p.ay = 0; p.az = 0;
p.m = 1;
p.r = 0.1;
particles_add(p);
}
void problem_init(int argc, char* argv[]){
// Setup constants
#ifdef GRAVITY_TREE
opening_angle2 = .5;
#endif
OMEGA = 0.00013143527; // 1/s
tmax = 2.*M_PI/OMEGA;
G = 6.67428e-11; // N / (1e-5 kg)^2 m^2
softening = 0.1; // m
dt = 1e-2*2.*M_PI/OMEGA; // s
root_nx = 8; root_ny = 8; root_nz = 1;
nghostx = 2; nghosty = 2; nghostz = 0; // Use three ghost rings
double surfacedensity = 418; // kg/m^2
double particle_density = 400; // kg/m^3
double particle_radius_min = 1; // m
double particle_radius_max = 4; // m
double particle_radius_slope = -3;
boxsize = 70.7;
if (argc>1){ // Try to read boxsize from command line
boxsize = atof(argv[1]);
}
init_box();
// Initial conditions
// Use Bridges et al coefficient of restitution.
coefficient_of_restitution_for_velocity = coefficient_of_restitution_bridges;
minimum_collision_velocity = particle_radius_min*OMEGA*0.001; // small fraction of the shear
double total_mass = surfacedensity*boxsize*boxsize;
for(int i=0;i<root_n;i++){
#ifdef MPI
if (communication_mpi_rootbox_is_local(i)==0) continue;
#endif
// Ring particles
double mass = 0;
while(mass<total_mass){
struct particle pt;
int ri = i%root_nx;
int rj = ((i-ri)/root_nx)%root_ny;
int xmin = -boxsize_x/2.+(double)(ri)*boxsize;
int ymin = -boxsize_y/2.+(double)(rj)*boxsize;
pt.x = tools_uniform(xmin,xmin+boxsize);
pt.y = tools_uniform(ymin,ymin+boxsize);
pt.z = tools_normal(1.); // m
pt.vx = 0;
pt.vy = -1.5*pt.x*OMEGA;
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
double radius = tools_powerlaw(particle_radius_min,particle_radius_max,particle_radius_slope);
#ifndef COLLISIONS_NONE
pt.r = radius; // m
#endif // COLLISIONS_NONE
double particle_mass = particle_density*4./3.*M_PI*radius*radius*radius;
pt.m = particle_mass; // kg
particles_add(pt);
mass += particle_mass;
}
}
}
void problem_init(int argc, char* argv[]){
// Setup constants
#ifdef GRAVITY_TREE
opening_angle2 = .5;
#endif // GRAVITY_TREE
OMEGA = 0.00013143527; // 1/s
G = 6.67428e-11; // N / (1e-5 kg)^2 m^2
softening = 0.1; // m
dt = 1e-3*2.*M_PI/OMEGA; // s
#ifdef OPENGL
display_rotate_z = 20; // Rotate the box by 20 around the z axis, then
display_rotate_x = 60; // rotate the box by 60 degrees around the x axis
#ifdef LIBPNG
system("mkdir png");
#endif // LIBPNG
#endif // OPENGL
root_nx = 2; root_ny = 2; root_nz = 1;
nghostx = 2; nghosty = 2; nghostz = 0; // Use two ghost rings
double surfacedensity = 400; // kg/m^2
double particle_density = 400; // kg/m^3
double particle_radius_min = 1; // m
double particle_radius_max = 4; // m
double particle_radius_slope = -3;
boxsize = 100; // m
if (argc>1){ // Try to read boxsize from command line
boxsize = atof(argv[1]);
}
init_box();
// Initial conditions
printf("Toomre wavelength: %f\n",2.*M_PI*M_PI*surfacedensity/OMEGA/OMEGA*G);
// Use Bridges et al coefficient of restitution.
coefficient_of_restitution_for_velocity = coefficient_of_restitution_bridges;
minimum_collision_velocity = particle_radius_min*OMEGA*0.001; // small fraction of the shear
double total_mass = surfacedensity*boxsize_x*boxsize_y;
double mass = 0;
while(mass<total_mass){
struct particle pt;
pt.x = tools_uniform(-boxsize_x/2.,boxsize_x/2.);
pt.y = tools_uniform(-boxsize_y/2.,boxsize_y/2.);
pt.z = tools_normal(1.); // m
pt.vx = 0;
pt.vy = -1.5*pt.x*OMEGA;
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
double radius = tools_powerlaw(particle_radius_min,particle_radius_max,particle_radius_slope);
#ifndef COLLISIONS_NONE
pt.r = radius; // m
#endif
double particle_mass = particle_density*4./3.*M_PI*radius*radius*radius;
pt.m = particle_mass; // kg
particles_add(pt);
mass += particle_mass;
}
}
void problem_init(int argc, char* argv[]){
// Setup constants
#ifdef GRAVITY_TREE
opening_angle2 = .5;
#endif
OMEGA = 0.00013143527; // 1/s
G = 6.67428e-11; // N / (1e-5 kg)^2 m^2
softening = 0.1; // m
dt = 1e-3*2.*M_PI/OMEGA; // s
root_nx = 2; root_ny = 2; root_nz = 1;
nghostx = 2; nghosty = 2; nghostz = 0; // Use two ghost rings
double surfacedensity = 400; // kg/m^2
double particle_density = 400; // kg/m^3
double particle_radius_min = 1; // m
double particle_radius_max = 4; // m
double particle_radius_slope = -3;
boxsize = 100;
if (argc>1){ // Try to read boxsize from command line
boxsize = atof(argv[1]);
}
init_box();
// Initial conditions
printf("Toomre wavelength: %f\n",2.*M_PI*M_PI*surfacedensity/OMEGA/OMEGA*G);
// Use Bridges et al coefficient of restitution.
coefficient_of_restitution_for_velocity = coefficient_of_restitution_bridges;
minimum_collision_velocity = particle_radius_min*OMEGA*0.001; // small fraction of the shear
double total_mass = surfacedensity*boxsize_x*boxsize_y;
#ifdef MPI
// Only initialise particles on master. This should also be parallelied but the details depend on the individual problem.
if (mpi_id==0){
#endif
double mass = 0;
while(mass<total_mass){
struct particle pt;
pt.x = tools_uniform(-boxsize_x/2.,boxsize_x/2.);
pt.y = tools_uniform(-boxsize_y/2.,boxsize_y/2.);
pt.z = tools_normal(1.); // m
pt.vx = 0;
pt.vy = -1.5*pt.x*OMEGA;
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
double radius = tools_powerlaw(particle_radius_min,particle_radius_max,particle_radius_slope);
#ifndef COLLISIONS_NONE
pt.r = radius; // m
#endif
double particle_mass = particle_density*4./3.*M_PI*radius*radius*radius;
pt.m = particle_mass; // kg
particles_add(pt);
mass += particle_mass;
}
#ifdef MPI
}
#endif
}
void problem_init(int argc, char* argv[]){
// Setup constants
OMEGA = 0.00013143527; // 1/s
G = 6.67428e-11; // N / (1e-5 kg)^2 m^2
dt = 1e-3*2.*M_PI/OMEGA; // s
root_nx = 10; root_ny = 1; root_nz = 1;
nghostx = 1; nghosty = 1; nghostz = 0; // Use two one ring (+cutoff, see below)
double surfacedensity = 400; // kg/m^2
double particle_density = 400; // kg/m^3
double particle_radius_min = 1; // m
double particle_radius_max = 4; // m
double particle_radius_slope = -3;
boxsize = 100;
if (argc>1){ // Try to read boxsize from command line
boxsize = atof(argv[1]);
}
init_box();
#ifdef GRAVITY_GRAPE
gravity_range = boxsize/2.;
#endif // GRAVITY_GRAPE
// Initial conditions
printf("Toomre wavelength: %f\n",2.*M_PI*M_PI*surfacedensity/OMEGA/OMEGA*G);
#ifndef COLLISIONS_NONE
// Use Bridges et al coefficient of restitution.
coefficient_of_restitution_for_velocity = coefficient_of_restitution_bridges;
minimum_collision_velocity = particle_radius_min*OMEGA*0.001; // small fraction of the shear
softening = 0.1; // m
#else // COLLISIONS_NONE
softening = particle_radius_max;
#endif // COLLISIONS_NONE
double total_mass = surfacedensity*boxsize_x*boxsize_y;
double mass = 0;
while(mass<total_mass){
struct particle pt;
pt.x = tools_uniform(-boxsize_x/2.,boxsize_x/2.);
pt.y = tools_uniform(-boxsize_y/2.,boxsize_y/2.);
pt.z = tools_normal(1.); // m
pt.vx = 0;
pt.vy = -1.5*pt.x*OMEGA;
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
double radius = tools_powerlaw(particle_radius_min,particle_radius_max,particle_radius_slope);
#ifndef COLLISIONS_NONE
pt.r = radius; // m
#endif
double particle_mass = particle_density*4./3.*M_PI*radius*radius*radius;
pt.m = particle_mass; // kg
particles_add(pt);
mass += particle_mass;
}
}
explicit GridSpec(
const ndarray<real_t, 2> position,
const real_t scale) :
n_dim_ (n_dim),
scale (scale),
box (init_box(position)),
shape (init_shape()),
zeros (init_zeros()),
strides (init_strides())
{
}
void problem_init(int argc, char* argv[]){
// Setup constants
#ifdef GRAVITY_TREE
opening_angle2 = .5;
#endif // GRAVITY_TREE
integrator = SEI;
OMEGA = 0.00013143527; // 1/s
G = 6.67428e-11; // N / (1e-5 kg)^2 m^2
softening = 0.1; // m
dt = 1e-3*2.*M_PI/OMEGA; // s
root_nx = 2; root_ny = 2; root_nz = 1;
nghostx = 2; nghosty = 2; nghostz = 0; // Use two ghost rings
double surfacedensity = 840; // kg/m^2
double particle_density = 900; // kg/m^3
double particle_radius_min = 1.; // m
double particle_radius_max = 1.; // m
double particle_radius_slope = -3;
boxsize = 40; // m
if (argc>1){ // Try to read boxsize from command line
boxsize = atof(argv[1]);
}
init_box();
// Initial conditions
printf("Toomre wavelength: %f\n",4.*M_PI*M_PI*surfacedensity/OMEGA/OMEGA*G);
// Use Bridges et al coefficient of restitution.
coefficient_of_restitution_for_velocity = coefficient_of_restitution_bridges;
// Change collision_resolve routing from default.
collision_resolve = collision_resolve_hardsphere_pullaway;
// Small residual velocity to avoid particles from sinking into each other.
minimum_collision_velocity = particle_radius_min*OMEGA*0.001; // small fraction of the shear
double total_mass = surfacedensity*boxsize_x*boxsize_y;
double mass = 0;
while(mass<total_mass){
struct particle pt;
pt.x = tools_uniform(-boxsize_x/2.,boxsize_x/2.);
pt.y = tools_uniform(-boxsize_y/2.,boxsize_y/2.);
pt.z = tools_normal(1.); // m
pt.vx = 0;
pt.vy = -1.5*pt.x*OMEGA;
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
double radius = tools_powerlaw(particle_radius_min,particle_radius_max,particle_radius_slope);
#ifndef COLLISIONS_NONE
pt.r = radius; // m
#endif
double particle_mass = particle_density*4./3.*M_PI*radius*radius*radius;
pt.m = particle_mass; // kg
particles_add(pt);
mass += particle_mass;
}
}
void
fz_layout_html(fz_context *ctx, fz_html *box, float w, float h, float em)
{
fz_html page_box;
init_box(ctx, &page_box);
page_box.w = w;
page_box.h = 0;
layout_block(ctx, box, &page_box, em, 0, h);
}
pedphrase * init_phrase(pedphrase * phrase) {
pedphrase * newphrase;
if (phrase == NULL)
newphrase = (pedphrase *)malloc (sizeof(pedphrase));
else
newphrase = phrase;
newphrase->chars = init_list(NULL);
newphrase->length = 0;
newphrase->phrasebox = init_box(NULL);
newphrase->font = NULL;
newphrase->dir = PEDDIRECT_UNSET;
return newphrase;
}
void problem_init(int argc, char* argv[]){
// Setup constants
dt = 1e-4; // Initial timestep.
boxsize = 10;
tmax = 1e6;
N_active = 2; // Only the star and the planet are massive.
problem_additional_forces = force_radiation;
init_box();
// Star
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 1.;
particles_add(star);
// Planet
struct particle planet;
planet.m = 1e-3;
planet.x = 1; planet.y = 0.; planet.z = 0.;
planet.ax = 0; planet.ay = 0; planet.az = 0;
planet.vx = 0;
planet.vy = sqrt(G*(star.m+planet.m)/planet.x);
planet.vz = 0;
particles_add(planet);
// Dust particles
while(N<3){ // Three particles in total (star, planet, dust particle)
struct particle p;
p.m = 0; // massless
double r = 0.001; // distance from planet planet
double v = sqrt(G*planet.m/r);
p.x = r; p.y = 0; p.z = 0;
p.vx = 0; p.vy = v; p.vz = 0;
p.x += planet.x; p.y += planet.y; p.z += planet.z;
p.vx += planet.vx; p.vy += planet.vy; p.vz += planet.vz;
p.ax = 0; p.ay = 0; p.az = 0;
particles_add(p);
}
tools_move_to_center_of_momentum();
system("rm -v a.txt");
}
void problem_init(int argc, char* argv[]){
// Setup constants
opening_angle2 = 1.5; // This constant determines the accuracy of the tree code gravity estimate.
G = 1;
softening = 0.01; // Gravitational softening length
dt = 3e-3; // Timestep
boxsize = 1.2; // Particles outside the box are removed
root_nx = 1; root_ny = 1; root_nz = 1;
nghostx = 0; nghosty = 0; nghostz = 0;
init_box();
// Setup particles
double disc_mass = 2e-1; // Total disc mass
int _N = 10000; // Number of particles
// Initial conditions
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 1;
#ifdef INTEGRATOR_WH
// Insert particle manually. Don't add it to tree.
Nmax += 128;
particles = realloc(particles,sizeof(struct particle)*Nmax);
particles[N] = star;
N++;
#else // INTEGRATOR_WH
particles_add(star);
#endif // INTEGRATOR_WH
while(N<_N){
struct particle pt;
double a = tools_powerlaw(boxsize/10.,boxsize/2./1.2,-1.5);
double phi = tools_uniform(0,2.*M_PI);
pt.x = a*cos(phi);
pt.y = a*sin(phi);
pt.z = a*tools_normal(0.001);
double mu = star.m + disc_mass * (pow(a,-3./2.)-pow(boxsize/10.,-3./2.))/(pow(boxsize/2./1.2,-3./2.)-pow(boxsize/10.,-3./2.));
double vkep = sqrt(G*mu/a);
pt.vx = vkep * sin(phi);
pt.vy = -vkep * cos(phi);
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
pt.m = disc_mass/(double)_N;
particles_add(pt);
}
}
void problem_init(int argc, char* argv[]){
// Setup constants
G = 1;
integrator = LEAPFROG;
softening = 0.01;
dt = 3e-3;
boxsize = 1.2;
root_nx = 1; root_ny = 1; root_nz = 1;
nghostx = 0; nghosty = 0; nghostz = 0;
init_box();
// Setup particles
double disc_mass = 2e-1;
int _N = 10000;
// Initial conditions
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 1;
#ifdef INTEGRATOR_WH
// Insert particle manually. Don't add it to tree.
Nmax += 128;
particles = realloc(particles,sizeof(struct particle)*Nmax);
particles[N] = star;
N++;
#else // INTEGRATOR_WH
particles_add(star);
#endif // INTEGRATOR_WH
while(N<_N){
struct particle pt;
double a = tools_powerlaw(boxsize/10.,boxsize/2./1.2,-1.5);
double phi = tools_uniform(0,2.*M_PI);
pt.x = a*cos(phi);
pt.y = a*sin(phi);
pt.z = a*tools_normal(0.001);
double mu = star.m + disc_mass * (pow(a,-3./2.)-pow(boxsize/10.,-3./2.))/(pow(boxsize/2./1.2,-3./2.)-pow(boxsize/10.,-3./2.));
double vkep = sqrt(G*mu/a);
pt.vx = vkep * sin(phi);
pt.vy = -vkep * cos(phi);
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
pt.m = disc_mass/(double)_N;
particles_add(pt);
}
}
peddoc * init_doc(peddoc * doc, char * docname) {
peddoc * newdoc;
int strl;
if (doc == NULL)
newdoc = (peddoc *)malloc(sizeof(peddoc));
else
newdoc = doc;
newdoc->pages = init_list(NULL);
newdoc->docbox = init_box(NULL);
newdoc->fontcache = init_font_cache(NULL);
strl = strlen (docname);
newdoc->docname = (char *)malloc(strl+1);
strcpy(newdoc->docname,docname);
newdoc->pagecounts = 0;
newdoc->length = 0;
return newdoc;
}
void problem_init(int argc, char* argv[]){
// Setup constants
boxsize = 8;
softening = 1e-6;
dt = 1.0e-2*2.*M_PI;
N_active = 2; // Only the star and the planet have non-zero mass
init_box();
// Initial conditions for star
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.m = 1;
particles_add(star);
// Initial conditions for planet
double planet_e = 0.;
struct particle planet;
planet.x = 1.-planet_e; planet.y = 0; planet.z = 0;
planet.vx = 0; planet.vy = sqrt(2./(1.-planet_e)-1.); planet.vz = 0;
planet.m = 1e-2;
particles_add(planet);
while(N<10000){
double x = ((double)rand()/(double)RAND_MAX-0.5)*boxsize*0.9;
double y = ((double)rand()/(double)RAND_MAX-0.5)*boxsize*0.9;
double a = sqrt(x*x+y*y);
double phi = atan2(y,x);
if (a<.1) continue;
if (a>boxsize_x/2.*0.9) continue;
double vkep = sqrt(G*star.m/a);
struct particle testparticle;
testparticle.x = x;
testparticle.y = y;
testparticle.z = 1.0e-2*x*((double)rand()/(double)RAND_MAX-0.5);
testparticle.vx = -vkep*sin(phi);
testparticle.vy = vkep*cos(phi);
testparticle.vz = 0;
testparticle.ax = 0;
testparticle.ay = 0;
testparticle.az = 0;
testparticle.m = 0;
particles_add(testparticle);
}
}
void problem_init(int argc, char* argv[]){
// Integrator parameters
OMEGA = 1.0;
dt = 1.0e-3; // timestep
tmax = dt*Nsteps_per_output*Noutput; // simulation stop time
//#ifdef OPENGL
// display_rotate_z = 90; // display rotation angle (deg)
// display_rotate_x = 0;
//#endif
//Particle parameters
double x0_max = 10; // particles' initial -x0_max < x < x0_max
double y0_max = 50; // particles' initial y range
double z0_max = 0.0; // particles' initial z range
boxsize = 1;
root_nx = 20;
root_ny = 100;
root_nz = 10;
nghostx = 0;
nghosty = 1; // ghost boxes along y direction only
nghostz = 0;
double radius = 0.0; // particle radius
double density = 0.5; // particle density in cgs when radius is in cm
coefficient_of_restitution = 0.5;
minimum_collision_velocity = 0.001;
init_box();
// Initial conditions
for (int i=0; i<N_init; i++){
struct particle p;
p.x = tools_uniform(-x0_max, x0_max);
p.y = tools_uniform(-y0_max, y0_max);
p.z = tools_uniform(-z0_max, z0_max);
p.vx = 0;
p.vy = -1.5*p.x*OMEGA;
p.vz = 0;
p.ax = 0;
p.ay = 0;
p.az = 0;
p.m = 4*M_PI*density*radius*radius*radius/3;
p.r = radius;
//pt.id = i;
particles_add(p);
}
}
void problem_init(int argc, char* argv[]) {
// Check for command line arguments
if (argc<3) {
printf("Error. Please specify two command line arguments: r_h^* and s_x"\n);
exit(1);
}
// Calculating parameters. See Daisaka et al for definitions.
r_hstar = atof(argv[1]);
double r_h = r_hstar*2.*particle_radius;
double particle_mass = r_h*r_h*r_h*3./2.;
double tau = 0.5;
double surface_density = tau/(M_PI*particle_radius*particle_radius)*particle_mass;
lambda_crit = 4.*M_PI*M_PI*G*surface_density/OMEGA/OMEGA;
sx2 = 3.*lambda_crit/2.;
sy2 = 3.*lambda_crit/2.;
boxsize = lambda_crit*atof(argv[2]);
int _N = (int)round(tau*boxsize*boxsize/(M_PI*particle_radius*particle_radius));
dt = 2e-3*2.*M_PI;
tmax = 40.*2.*M_PI;
softening = 0.1*particle_radius;
opening_angle2 = 0.9;
coefficient_of_restitution = 0.5;
minimum_collision_velocity = 2.*dt*particle_radius;
nghostx = 3;
nghosty = 3;
nghostz = 0;
init_box();
// Initialize particles
while(N<_N) {
struct particle p;
p.x = ((double)rand()/(double)RAND_MAX-0.5)*boxsize_x;
p.y = ((double)rand()/(double)RAND_MAX-0.5)*boxsize_y;
p.z = 3.*particle_radius*((double)rand()/(double)RAND_MAX-0.5);
p.vx = 0;
p.vy = -1.5*p.x*OMEGA;
p.vz = 0;
p.ax = 0;
p.ay = 0;
p.az = 0;
p.m = particle_mass;
p.r = particle_radius;
particles_add(p);
}
}
int axe_init(LIFE_S *self)
{
DOTA_RETURN_IF_NULL(self, ERR_NULL_POINTER);
/* 初始化链表头 */
INIT_LIST_HEAD(&(self->buff_list));
INIT_LIST_HEAD(&(self->life_list));
self->kill_queue = queue_init(TMP_SIZE);
if (!self->kill_queue)
return ERR_MALLOC_FAILED;
/* 把道具真正的装备上 */
init_box(self);
self->life_state = LIFE_RUNNING;
return DOTA_OK;
}
void problem_init(int argc, char* argv[]){
// Setup constants
integrator = WH;
G = 1;
N_active = 1;
N_collisions = 1; // Don't detect collisions for the star.
softening = 0.01;
dt = 1e-3;
boxsize = 2.4;
root_nx = 1; root_ny = 1; root_nz = 1;
nghostx = 0; nghosty = 0; nghostz = 0;
init_box();
// Setup particles
int _N = 1000;
// Initial conditions
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 1;
star.r = 0.01;
particles_add(star);
while(N<_N){
struct particle pt;
double a = tools_powerlaw(boxsize/2.9,boxsize/3.1,.5);
double phi = tools_uniform(0,2.*M_PI);
pt.x = a*cos(phi);
pt.y = a*sin(phi);
pt.z = a*tools_normal(0.0001);
double vkep = sqrt(G*star.m/a);
pt.vx = vkep * sin(phi);
pt.vy = -vkep * cos(phi);
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
pt.m = 0.0001;
pt.r = .3/sqrt((double)_N);
particles_add(pt);
}
}
int main_option_client(t_global *global, t_xtree *tree)
{
char *hostname;
global->scene = NULL;
my_putstr("[*] Raytracer: Creation of the window ...");
if ((global->window = obj_create_window(global, tree)) == NULL)
return (my_puterror(" \033[31mFail !\033[0m\n"));
my_putstr(" \033[32mDone !\033[00m\n");
my_putstr("[*] Raytracer: Creation of the scene ...");
if ((global->scene = obj_create_scene \
(tree, global->window->mlx_ptr)) == NULL)
return (my_puterror(" \033[31mFail !\033[0m\n"));
my_putstr(" \033[32mDone !\033[00m\n");
hostname = ((t_client_info *)global->info.arg)->hostname;
init_box(global->scene->object);
if ((client_main(hostname, global->info.port)) == EXIT_FAILURE)
return (EXIT_FAILURE);
return (EXIT_SUCCESS);
}
int main_option_server(t_global *global, t_xtree *tree)
{
global->scene = NULL;
global->count_trame = 0;
my_putstr("[*] Raytracer: Creation of the window ...");
if ((global->window = obj_create_window(global, tree)) == NULL)
return (my_puterror(" \033[31mFail !\033[0m\n"));
my_putstr(" \033[32mDone !\033[00m\n");
my_putstr("[*] Raytracer: Creation of the scene ...");
if (!(global->scene = obj_create_scene(tree, global->window->mlx_ptr)))
return (my_puterror(" \033[31mFail !\033[0m\n"));
my_putstr(" \033[32mDone !\033[00m\n");
init_box(global->scene->object);
if ((server_main(global->info.port)) == EXIT_FAILURE)
return (EXIT_FAILURE);
mlx_key_hook(global->window->win_ptr, &event_key, global);
mlx_expose_hook(global->window->win_ptr, &event_expose, global);
mlx_loop(global->window->mlx_ptr);
return (EXIT_SUCCESS);
}
void problem_init(int argc, char* argv[]){
// Setup constants
G = 1;
softening = 0.01;
dt = 3e-3;
boxsize = 2.4;
integrator = LEAPFROG;
root_nx = 1; root_ny = 1; root_nz = 1;
nghostx = 0; nghosty = 0; nghostz = 0;
init_box();
// Initial conditions
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 1;
particles_add(star);
// Setup disk particles
double disc_mass = 2e-1;
int _N = 1024*4;
while(N<_N){
struct particle pt;
double a = tools_powerlaw(boxsize/20.,boxsize/4./1.2,-1.5);
double phi = tools_uniform(0,2.*M_PI);
pt.x = a*cos(phi);
pt.y = a*sin(phi);
pt.z = a*tools_normal(0.001);
double mu = star.m + disc_mass * (pow(a,-3./2.)-pow(boxsize/20.,-3./2.))/(pow(boxsize/4./1.2,-3./2.)-pow(boxsize/20.,-3./2.));
double vkep = sqrt(G*mu/a);
pt.vx = vkep * sin(phi);
pt.vy = -vkep * cos(phi);
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
pt.m = disc_mass/(double)_N;
particles_add(pt);
}
}
void problem_init(int argc, char* argv[]){
// Setup constants
integrator = IAS15;
dt = 1e-6; // initial timestep
boxsize = 0.01;
tmax = 3e1;
N_active = 2; // only the star and the planet are massive.
problem_additional_forces = force_J2;
init_box();
// Planet
struct particle planet;
planet.m = Msaturn;
planet.x = 0; planet.y = 0; planet.z = 0;
planet.vx = 0; planet.vy = 0; planet.vz = 0;
particles_add(planet);
// Read obliquity from command line. Default is 0.
ObliquityPlanet = input_get_double(argc,argv,"Obliquity",0.)/180.*M_PI;
// Add one dust particles
while(N<2){ // two particles in total (planet and dust particle)
struct particle p;
p.m = 0; // massless
double a = Rplanet*3.; // small distance from planet (makes J2 important)
double e = 0.1;
double v = sqrt((1.+e)/(1.-e)*G*planet.m/a); // setup eccentric orbit (ignores J2)
p.x = (1.-e)*a; p.y = 0; p.z = 0;
p.vx = 0; p.vy = v; p.vz = 0;
p.x += planet.x; p.y += planet.y; p.z += planet.z;
p.vx += planet.vx; p.vy += planet.vy; p.vz += planet.vz;
particles_add(p);
}
tools_move_to_center_of_momentum();
system("rm -v a.txt"); // delete previous output
}
void problem_init(int argc, char* argv[]){
// Setup constants
dt = 1e-3*2.*M_PI;
boxsize = 3;
#ifdef OPENGL
display_wire = 1;
#endif // OPENGL
init_box();
// Initial conditions
// Parameters are those of Lee & Peale 2002, Figure 4.
struct particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 0.32; // This is a sub-solar mass star
particles_add(star);
struct particle p1; // Planet 1
p1.x = 0.5; p1.y = 0; p1.z = 0;
p1.ax = 0; p1.ay = 0; p1.az = 0;
p1.m = 0.56e-3;
p1.vy = sqrt(G*(star.m+p1.m)/p1.x);
p1.vx = 0; p1.vz = 0;
particles_add(p1);
struct particle p2; // Planet 1
p2.x = 1; p2.y = 0; p2.z = 0;
p2.ax = 0; p2.ay = 0; p2.az = 0;
p2.m = 1.89e-3;
p2.vy = sqrt(G*(star.m+p2.m)/p2.x);
p2.vx = 0; p2.vz = 0;
particles_add(p2);
tau_a = calloc(sizeof(double),N);
tau_e = calloc(sizeof(double),N);
tau_a[2] = 125663.; // Migration timescale of planet 2 is 20000 years.
tau_e[2] = tau_a[2]/100.; // Eccentricity damping timescale is 200 years (K=100).
}
int main(int argc, char* argv[]){
// Setup constants
G = 1;
integrator = LEAPFROG;
softening = 0.01;
dt = 3e-3;
boxsize = 1.2;
root_nx = 1; root_ny = 1; root_nz = 1;
nghostx = 0; nghosty = 0; nghostz = 0;
init_box();
// Setup particles
double disc_mass = 2e-1;
int _N = 10000;
// Initial conditions
struct reb_particle star;
star.x = 0; star.y = 0; star.z = 0;
star.vx = 0; star.vy = 0; star.vz = 0;
star.ax = 0; star.ay = 0; star.az = 0;
star.m = 1;
reb_add(r, star);
while(N<_N){
struct reb_particle pt;
double a = reb_random_powerlaw(boxsize/10.,boxsize/2./1.2,-1.5);
double phi = reb_random_uniform(0,2.*M_PI);
pt.x = a*cos(phi);
pt.y = a*sin(phi);
pt.z = a*reb_random_normal(0.001);
double mu = star.m + disc_mass * (pow(a,-3./2.)-pow(boxsize/10.,-3./2.))/(pow(boxsize/2./1.2,-3./2.)-pow(boxsize/10.,-3./2.));
double vkep = sqrt(G*mu/a);
pt.vx = vkep * sin(phi);
pt.vy = -vkep * cos(phi);
pt.vz = 0;
pt.ax = 0;
pt.ay = 0;
pt.az = 0;
pt.m = disc_mass/(double)_N;
reb_add(r, pt);
}
}
