void
Model::duplicate_objects_grid(size_t x, size_t y, coordf_t dist)
{
if (this->objects.size() > 1) throw std::runtime_error("Grid duplication is not supported with multiple objects");
if (this->objects.empty()) throw std::runtime_error("No objects!");
ModelObject* object = this->objects.front();
object->clear_instances();
Sizef3 size = object->bounding_box().size();
for (size_t x_copy = 1; x_copy <= x; ++x_copy) {
for (size_t y_copy = 1; y_copy <= y; ++y_copy) {
ModelInstance* instance = object->add_instance();
instance->offset.x = (size.x + dist) * (x_copy-1);
instance->offset.y = (size.y + dist) * (y_copy-1);
}
}
}
