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#include "fracture.h"
long double *get_thres(uint_t ne, double beta) {
long double *thres = (long double *)malloc(ne * sizeof(long double));
assert(thres != NULL);
gsl_rng *r = gsl_rng_alloc(GSL_RAND_GEN);
gsl_rng_set(r, jst_rand_seed());
for (uint_t i = 0; i < ne; i++) {
thres[i] = rand_dist_pow(r, beta);
}
gsl_rng_free(r);
return thres;
}
void net_notch(net_t *net, double notch_len, cholmod_common *c) {
for (uint_t i = 0; i < net->graph->ne; i++) {
uint_t v1, v2;
double v1x, v1y, v2x, v2y, dy;
bool crosses_center, not_wrapping, correct_length;
v1 = net->graph->ev[2 * i];
v2 = net->graph->ev[2 * i + 1];
v1x = net->graph->vx[2 * v1];
v1y = net->graph->vx[2 * v1 + 1];
v2x = net->graph->vx[2 * v2];
v2y = net->graph->vx[2 * v2 + 1];
dy = v1y - v2y;
crosses_center = (v1y >= 0.5 && v2y <= 0.5) || (v1y <= 0.5 && v2y >= 0.5);
not_wrapping = fabs(dy) < 0.5;
// correct_length = v1x + dx / dy * (v1y - 0.5) <= notch_len;
correct_length = v1x < notch_len && v2x < notch_len;
if (crosses_center && not_wrapping && correct_length) {
break_edge(net, i, c);
}
}
}
net_t *net_create(const graph_t *g, double inf, double beta, double notch_len,
bool vb, cholmod_common *c) {
net_t *net = (net_t *)calloc(1, sizeof(net_t));
assert(net != NULL);
net->graph = g;
net->num_broken = 0;
net->fuses = (bool *)calloc(g->ne, sizeof(bool));
assert(net->fuses != NULL);
net->thres = get_thres(g->ne, beta);
net->inf = inf;
net->dim = g->nv;
if (g->boundary == TORUS_BOUND) {
net->nep = g->ne;
net->evp = (uint_t *)malloc(2 * g->ne * sizeof(uint_t));
memcpy(net->evp, g->ev, 2 * g->ne * sizeof(uint_t));
} else {
if (vb) {
net->dim -= g->bi[g->nb];
net->evp = (uint_t *)malloc(2 * g->ne * sizeof(uint_t));
net->nep = 0;
for (uint_t i = 0; i < g->ne; i++) {
if (!(g->bq[g->ev[2 * i]] || g->bq[g->ev[2 * i + 1]])) {
net->evp[2 * net->nep] = g->bni[g->ev[2 * i]];
net->evp[2 * net->nep + 1] = g->bni[g->ev[2 * i + 1]];
net->nep++;
}
}
} else {
net->dim += 2;
net->evp = (uint_t *)malloc(2 * (g->ne + g->bi[2]) * sizeof(uint_t));
memcpy(net->evp, g->ev, 2 * g->ne * sizeof(uint_t));
net->nep = g->ne + g->bi[2];
for (uint_t i = 0; i < 2; i++) {
for (uint_t j = 0; j < g->bi[i + 1] - g->bi[i]; j++) {
net->evp[2 * (g->ne + g->bi[i] + j)] = g->b[g->bi[i] + j];
net->evp[2 * (g->ne + g->bi[i] + j) + 1] = g->nv + i;
}
}
}
}
net->voltage_bound = vb;
net->boundary_cond = bound_set(g, vb, notch_len, c);
net_notch(net, notch_len, c);
{
cholmod_sparse *laplacian = gen_laplacian(net, c);
net->factor = CHOL_F(analyze)(laplacian, c);
CHOL_F(factorize)(laplacian, net->factor, c);
CHOL_F(free_sparse)(&laplacian, c);
}
net->voltcurmat = gen_voltcurmat(g->ne, g->nv, g->ev, c);
return net;
}
net_t *net_copy(const net_t *net, cholmod_common *c) {
net_t *net_copy = (net_t *)calloc(1, sizeof(net_t));
assert(net_copy != NULL);
memcpy(net_copy, net, sizeof(net_t));
size_t fuses_size = (net->graph)->ne * sizeof(bool);
net_copy->fuses = (bool *)malloc(fuses_size);
assert(net_copy->fuses != NULL);
memcpy(net_copy->fuses, net->fuses, fuses_size);
size_t thres_size = (net->graph)->ne * sizeof(long double);
net_copy->thres = (long double *)malloc(thres_size);
assert(net_copy->thres != NULL);
memcpy(net_copy->thres, net->thres, thres_size);
size_t evp_size = 2 * net->nep * sizeof(uint_t);
net_copy->evp = (uint_t *)malloc(thres_size);
assert(net_copy->evp != NULL);
memcpy(net_copy->evp, net->evp, evp_size);
net_copy->boundary_cond = CHOL_F(copy_dense)(net->boundary_cond, c);
net_copy->factor = CHOL_F(copy_factor)(net->factor, c);
net_copy->voltcurmat = CHOL_F(copy_sparse)(net->voltcurmat, c);
return net_copy;
}
void net_free(net_t *net, cholmod_common *c) {
free(net->fuses);
free(net->thres);
CHOL_F(free_dense)(&(net->boundary_cond), c);
CHOL_F(free_factor)(&(net->factor), c);
CHOL_F(free_sparse)(&(net->voltcurmat), c);
free(net->evp);
free(net);
}
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