/* arrange objects preserving their instance count
but altering their instance positions */
bool
Model::arrange_objects(coordf_t dist, const BoundingBoxf* bb)
{
// get the (transformed) size of each instance so that we take
// into account their different transformations when packing
Pointfs instance_sizes;
for (ModelObjectPtrs::const_iterator o = this->objects.begin(); o != this->objects.end(); ++o) {
for (size_t i = 0; i < (*o)->instances.size(); ++i) {
instance_sizes.push_back((*o)->instance_bounding_box(i).size());
}
}
Pointfs positions;
if (! this->_arrange(instance_sizes, dist, bb, positions))
return false;
for (ModelObjectPtrs::const_iterator o = this->objects.begin(); o != this->objects.end(); ++o) {
for (ModelInstancePtrs::const_iterator i = (*o)->instances.begin(); i != (*o)->instances.end(); ++i) {
(*i)->offset = positions.back();
positions.pop_back();
}
(*o)->invalidate_bounding_box();
}
return true;
}
