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# File 'ext/miniball_ruby/miniball_ruby.c', line 93
static VALUE calc(VALUE self, VALUE points, VALUE with_analytics) {
Check_Type(points, T_ARRAY);
if(RARRAY_LEN(points) == 0) {
rb_raise(rb_eArgError, "Must have at least one point");
}
Check_Type(rb_ary_entry(points, 0), T_ARRAY);
int dim = RARRAY_LEN(rb_ary_entry(points, 0));
Miniball* m = Miniball_create(dim);
int i, j;
int len = RARRAY_LEN(points);
for(i = 0; i < len; ++i) {
VALUE point = rb_ary_entry(points, i);
Check_Type(point, T_ARRAY);
if(RARRAY_LEN(point) != dim) {
rb_raise(rb_eArgError, "Point dimensions must be consistent");
}
Point* p = Point_create(dim);
for(j = 0; j < dim; ++j) {
p->coord[j] = NUM2DBL(rb_ary_entry(point, j));
}
Miniball_check_in(m, p);
}
Miniball_build(m);
Point* center = Miniball_center(m);
double radius_squared = Miniball_squared_radius(m);
//TODO: Support points
Result* r = ConstructResult(dim, center->coord, radius_squared);
int support_point_count = Miniball_nr_support_points(m);
r->support_points = rb_ary_new2(support_point_count);
Point* support_point = Miniball_support_points_begin(m);
for(i = 0; i < support_point_count; i++, support_point = support_point->next) {
VALUE point = rb_ary_new2(dim);
for(j = 0; j < dim; ++j) {
rb_ary_store(point, j, rb_float_new(support_point->coord[j]));
}
rb_ary_store(r->support_points, i, point);
}
if(with_analytics) {
double slack;
r->accuracy = rb_float_new(Miniball_accuracy(m, &slack));
r->slack = slack;
}
VALUE result = Data_Wrap_Struct(MiniballResult, MarkResult, DestroyResult, r);
Miniball_destroy(m);
return result;
}
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