BucketVector const& Selector::get_buckets(EntityRank entity_rank) const
{
static BucketVector emptyBucketVector;
if (m_expr.empty()) {
return emptyBucketVector;
}
BulkData* mesh = find_mesh();
ThrowRequireMsg(mesh != NULL,
"ERROR, Selector::get_buckets not available if selector expression does not involve any mesh Parts.");
return mesh->get_buckets(entity_rank, *this);
}
struct model *load_obj_model(char *filename)
{
char dirname[1024];
char line[200];
struct model *model;
struct mesh *curmesh = NULL;
int fvp[20], fvt[20], fvn[20];
char *p, *s;
int i, n;
FILE *fp;
strlcpy(dirname, filename, sizeof dirname);
p = strrchr(dirname, '/');
if (!p) p = strrchr(dirname, '\\');
if (p) *p = 0;
else strlcpy(dirname, ".", sizeof dirname);
printf("loading obj model: %s\n", filename);
fp = fopen(filename, "r");
if (!fp) {
fprintf(stderr, "error: cannot load model '%s'\n", filename);
return NULL;
}
model = malloc(sizeof(struct model));
memset(model, 0, sizeof(struct model));
model->min[0] = model->min[1] = model->min[2] = 1e10;
model->max[0] = model->max[1] = model->max[2] = -1e10;
model->radius = 0;
while (1) {
if (!fgets(line, sizeof line, fp))
break;
s = strtok(line, SEP);
if (!s) {
continue;
} else if (!strcmp(s, "v")) {
char *x = strtok(NULL, SEP);
char *y = strtok(NULL, SEP);
char *z = strtok(NULL, SEP);
add_position(model, atof(x), atof(y), atof(z));
} else if (!strcmp(s, "vt")) {
char *u = strtok(NULL, SEP);
char *v = strtok(NULL, SEP);
add_texcoord(model, atof(u), atof(v));
} else if (!strcmp(s, "vn")) {
char *x = strtok(NULL, SEP);
char *y = strtok(NULL, SEP);
char *z = strtok(NULL, SEP);
add_normal(model, atof(x), atof(y), atof(z));
} else if (!strcmp(s, "f")) {
n = 0;
s = strtok(NULL, SEP);
while (s) {
if (*s) {
splitfv(s, fvp+n, fvt+n, fvn+n);
n++;
}
s = strtok(NULL, SEP);
}
for (i = 1; i < n - 1; i++) {
add_triangle(curmesh,
fvp[0], fvt[0], fvn[0],
fvp[i], fvt[i], fvn[i],
fvp[i+1], fvt[i+1], fvn[i+1]);
}
} else if (!strcmp(s, "mtllib")) {
s = strtok(NULL, SEP);
model->material = load_material(dirname, s);
} else if (!strcmp(s, "usemtl")) {
s = strtok(NULL, SEP);
curmesh = find_mesh(model, s);
}
}
model->radius = sqrtf(model->radius);
fclose(fp);
return model;
}
